Decoding Mercedes OBD2 Codes: Your Comprehensive Guide to Understanding and Troubleshooting

For Mercedes-Benz owners and automotive service professionals alike, understanding the On-Board Diagnostic System (OBD-II) is crucial for maintaining vehicle health and performance. Since its introduction in the mid-1990s, OBD-II has become a standardized diagnostic system across all vehicles, offering a wealth of information about a car’s engine and other critical systems. This is especially vital for Mercedes-Benz vehicles, known for their sophisticated engineering. When your Mercedes-Benz encounters a problem, the OBD-II system generates specific Mercedes Obd2 Codes, also known as fault or error codes. These codes are key to diagnosing and resolving issues, ensuring your Mercedes-Benz continues to operate with the efficiency and reliability you expect.

For service centers, mercedes obd2 codes are the starting point for efficient diagnostics, enabling technicians to quickly identify and address problems. For Mercedes-Benz owners, understanding these codes empowers you to make informed decisions about your vehicle’s maintenance and know when to seek expert assistance. Whether you see a warning light on your dashboard or experience a more complex engine issue, familiarity with mercedes obd2 codes is an invaluable aspect of Mercedes-Benz ownership.

Understanding Mercedes-Benz OBD-II Codes: A Deep Dive

The Fundamentals of OBD-II Codes

On-Board Diagnostic II (OBD-II) codes are essentially the communication language of your car’s computer, conveying information about its health and any malfunctions it detects. These codes are especially significant in modern, technologically advanced vehicles like Mercedes-Benz.

Perhaps the most recognizable indicator linked to mercedes obd2 codes is the “Check Engine” light on your dashboard. When this light illuminates, it signals that your vehicle’s computer has detected an issue within the engine or emission system. This is where the OBD-II system becomes active, storing one or more specific codes that correspond to the detected problem.

The OBD-II Port: Your Diagnostic Gateway

Every contemporary vehicle, including all Mercedes-Benz models, is equipped with an OBD-II port. This port is typically located under the dashboard, often near the steering column, and serves as the access point for vehicle diagnostics. By connecting an OBD-II scanner to this port, both technicians and vehicle owners can retrieve these stored mercedes obd2 codes. These codes are alphanumeric, usually starting with a letter followed by four numbers (e.g., P0300). Each code points to a specific issue, ranging from a simple problem like a loose gas cap to more complex engine malfunctions.

Why OBD-II Codes are Crucial for Mercedes-Benz

For Mercedes-Benz vehicles, mercedes obd2 codes are indispensable for maintaining their sophisticated systems. Mercedes-Benz cars are meticulously engineered, and the OBD-II system is critical in ensuring that every component functions as designed. When a Mercedes-Benz displays an OBD-II code, it’s an alert to a potential issue requiring attention. This early detection is vital in preventing minor problems from escalating into costly major repairs, thus preserving the car’s performance and extending its lifespan.

Decoding the Structure of OBD-II Codes

Understanding the structure of mercedes obd2 codes can make interpreting them much easier:

• First Character: This is always a letter, indicating the primary system affected:

  • P: Powertrain (engine and transmission related issues)
  • C: Chassis (issues with systems like ABS, traction control, and suspension)
  • B: Body (problems related to airbags, climate control, and other body electronics)
  • U: Network Communication (issues with the vehicle’s communication networks like CAN bus)

• Second Character: A number that specifies if the code is generic or manufacturer-specific:

  • 0: Generic OBD-II code (standard across all manufacturers)
  • 1: Manufacturer-specific code (unique to Mercedes-Benz in this context)

• Third Character: A number indicating the specific subsystem affected:

  • 0: Fuel and air metering
  • 1: Fuel and air metering
  • 2: Fuel and air metering (injector circuit)
  • 3: Ignition system or misfires
  • 4: Auxiliary emission controls
  • 5: Idle control system and auxiliary inputs
  • 6: Computer output circuit
  • 7 & 8: Transmission

• Fourth and Fifth Characters: These two digits further pinpoint the specific fault within the identified system and subsystem. For example, in P0300, “00” indicates a random or multiple cylinder misfire.

Generic vs. Manufacturer-Specific Codes

It’s essential to distinguish between generic and manufacturer-specific mercedes obd2 codes:

• Generic Codes: These codes are standardized across all vehicle manufacturers and are defined by the Society of Automotive Engineers (SAE). They provide general information about a problem and are in the format P0xxx, C0xxx, B0xxx, U0xxx.

• Manufacturer-Specific Codes: Mercedes-Benz vehicles also utilize manufacturer-specific codes, which are more detailed and unique to the brand. These codes often start with “P1xxx”, “C1xxx”, “B1xxx”, or “U1xxx”. For example, a P1400 code on a Mercedes is manufacturer-specific, offering more precise information about the issue than a generic code might. These are also known as enhanced codes and can be crucial for accurate diagnosis and repair of Mercedes-Benz vehicles.

Common Mercedes-Benz OBD-II Codes and What They Mean

Here are some common mercedes obd2 codes you might encounter in your Mercedes-Benz, along with their possible causes and solutions. Note that Adsitco Products are mentioned as potential sources for replacement parts, as in the original article.

P0100 – Mass Air Flow (MAF) Circuit Malfunction

• Description: This code indicates a problem with the Mass Air Flow sensor or its circuit. The MAF sensor measures the amount of air entering the engine, which is critical for proper fuel mixture.
• Possible Causes: A dirty or faulty MAF sensor is a common cause. Other causes include air leaks in the intake system or damaged wiring to the MAF sensor.
• Solutions: Start by cleaning the MAF sensor. If cleaning doesn’t resolve the issue, the sensor may need to be replaced. Also, check for any air leaks in the intake system and repair damaged wiring.
• Adsitco Products: MAF sensors, air filters, intake system components.

P0130 – O2 Sensor Circuit Malfunction (Bank 1, Sensor 1)

• Description: This code indicates a fault in the oxygen sensor located in Bank 1, Sensor 1. This sensor monitors the oxygen content in the exhaust gas to ensure optimal fuel combustion and emissions.
• Possible Causes: Common causes include a faulty oxygen sensor, wiring issues affecting the sensor, or exhaust leaks near the sensor.
• Solutions: Replacing the oxygen sensor is often necessary. Inspect the wiring to the sensor for damage and repair any exhaust leaks.
• Adsitco Products: Oxygen sensors, exhaust components, wiring harnesses.

P0171 – System Too Lean (Bank 1)

• Description: This code means that the engine’s air-fuel mixture in Bank 1 is too lean, meaning there is too much air and not enough fuel.
• Possible Causes: Vacuum leaks are a frequent cause, as they allow unmetered air into the engine. Other causes include fuel injection issues (like clogged injectors) or air intake problems.
• Solutions: Thoroughly check for vacuum leaks and repair any found. Inspect the fuel injectors and clean the air intake system.
• Adsitco Products: Vacuum hoses, fuel injectors, air intake components, cleaning supplies.

P0300 – Random/Multiple Cylinder Misfire Detected

• Description: This code indicates that multiple cylinders in the engine are misfiring. Misfires reduce engine power, fuel efficiency, and can damage the catalytic converter.
• Possible Causes: Common culprits are faulty spark plugs, ignition coils, or distributor issues.
• Solutions: Start by replacing the spark plugs. If the misfire persists, test and replace faulty ignition coils. In older Mercedes models, distributor issues may also need to be addressed.
• Adsitco Products: Spark plugs, ignition coils, distributor components, ignition system testers.

P0410 – Secondary Air Injection System Malfunction

• Description: This code indicates a problem with the secondary air injection system, which helps reduce emissions during cold starts.
• Possible Causes: A faulty air pump, blocked hoses in the system, or faulty valves are common causes.
• Solutions: Replace the air pump if it’s not functioning. Check for and clear any blockages in the air injection hoses. Replace faulty valves.
• Adsitco Products: Air pumps, air injection hoses, valves, emission system components.

P0500 – Vehicle Speed Sensor Malfunction

• Description: This code indicates that the vehicle speed sensor is reporting incorrect data. The speed sensor is crucial for speedometer function, transmission shifting, and ABS operation.
• Possible Causes: A faulty speed sensor is the most likely cause. Wiring issues or a malfunctioning dashboard can also trigger this code.
• Solutions: Replace the vehicle speed sensor. Inspect the wiring to the sensor and repair any damage. Check the dashboard functionality.
• Adsitco Products: Speed sensors, wiring harnesses, dashboard components.

P0560 – System Voltage Malfunction

• Description: This code signals an issue with the car’s electrical system voltage. Proper voltage is essential for all electronic systems to function correctly.
• Possible Causes: A weak battery, a faulty alternator, or poor electrical connections are common causes.
• Solutions: Test and replace the battery if it’s weak. Repair or replace the alternator if it’s not charging properly. Check all major electrical connections for corrosion or looseness.
• Adsitco Products: Batteries, alternators, electrical components, battery testers.

P0700 – Transmission Control System Malfunction

• Description: This is a general code indicating a fault within the transmission control system. It often accompanies other transmission-specific codes.
• Possible Causes: Transmission sensor failures, low or contaminated transmission fluid, or issues with the Transmission Control Module (TCM) or Engine Control Module (ECM).
• Solutions: Check the transmission fluid level and condition. Replace any faulty transmission sensors. Inspect the TCM and ECM for issues.
• Adsitco Products: Transmission sensors, transmission fluid, ECM components, TCM components.

P0720 – Output Speed Sensor Circuit Malfunction

• Description: This code points to a fault in the transmission’s output speed sensor circuit. This sensor monitors the output shaft speed of the transmission.
• Possible Causes: A defective output speed sensor or wiring problems in the sensor circuit are the primary causes.
• Solutions: Replace the output speed sensor. Check and repair any wiring issues in the sensor circuit.
• Adsitco Products: Speed sensors, transmission parts, wiring repair components.

P0730 – Incorrect Gear Ratio

• Description: This code indicates that the transmission is detecting an incorrect gear ratio, meaning the actual gear ratio doesn’t match the commanded gear ratio.
• Possible Causes: Transmission slipping, hydraulic problems within the transmission, or sensor issues can cause this code.
• Solutions: Check for signs of transmission slippage. Investigate and repair any hydraulic circuit problems within the transmission. Replace any suspect sensors.
• Adsitco Products: Transmission rebuild kits, hydraulic components, sensors, transmission additives.

P2006 – Intake Manifold Runner Control Stuck Closed Bank 1

• Description: This code indicates that the intake manifold runner control in Bank 1 is stuck in the closed position. This system optimizes airflow into the engine at different speeds.
• Possible Causes: A faulty intake manifold runner control valve, vacuum leaks in the control system, or mechanical failure of the runners themselves.
• Solutions: Replace the intake manifold runner control valve. Repair any vacuum leaks in the system. Inspect the intake manifold runners for mechanical issues.
• Adsitco Products: Intake manifold components, control valves, vacuum system parts.

P2187 – System Too Lean at Idle (Bank 1)

• Description: Similar to P0171, but specifically indicates a lean fuel mixture in Bank 1 during idle conditions.
• Possible Causes: Vacuum leaks are again a primary suspect. Faulty fuel injectors or air metering issues can also cause this code.
• Solutions: Repair any vacuum leaks. Replace or clean faulty fuel injectors. Check the mass air flow sensor and other air metering components.
• Adsitco Products: Fuel injectors, vacuum components, air flow sensors, injector cleaning kits.

Comprehensive List of Mercedes-Benz OBD-II P0400 – P0800 Codes

Below is a detailed breakdown of mercedes obd2 codes within the P0400, P0500, P0600, P0700, and P0800 ranges, offering descriptions, potential causes, and solutions.

Mercedes P0400 Fault Codes

P0466 – Purge Flow Sensor Circuit Range/Performance

• Description: Performance issues or out-of-range readings from the purge flow sensor circuit.
• Possible Causes: Faulty sensor, clogged purge lines, electrical issues.
• Solutions: Replace sensor, clear lines, check wiring.
• Adsitco Products: Purge flow sensors, emission components.

P0467 – Purge Flow Sensor Circuit Low Input

• Description: Low input from the purge flow sensor circuit, possibly a short.
• Possible Causes: Short circuit in sensor, bad electrical connection.
• Solutions: Inspect wiring for shorts, secure connections.
• Adsitco Products: Wiring harnesses, connectors.

P0468 – Purge Flow Sensor Circuit High Input

• Description: High input from the purge flow sensor circuit, possibly an open.
• Possible Causes: Open circuit in sensor, poor electrical connection.
• Solutions: Check for open circuits, ensure good connections.
• Adsitco Products: Electrical repair kits, purge flow sensors.

P0469 – Purge Flow Sensor Circuit Intermittent

• Description: Intermittent signal from the purge flow sensor circuit.
• Possible Causes: Loose connections, intermittent faults.
• Solutions: Tighten connections, inspect wiring.
• Adsitco Products: Electrical testing tools, wiring components.

P0470 – Exhaust Pressure Sensor Malfunction

• Description: Fault in the exhaust pressure sensor circuit.
• Possible Causes: Faulty sensor, exhaust leaks, wiring issues.
• Solutions: Replace sensor, repair leaks, check wiring.
• Adsitco Products: Exhaust pressure sensors, exhaust components.

P0471 – Exhaust Pressure Sensor Range/Performance

• Description: Sensor performance outside expected range.
• Possible Causes: Faulty sensor, clogged exhaust, wiring problems.
• Solutions: Replace sensor, unclog exhaust, repair wiring.
• Adsitco Products: Exhaust sensors, exhaust repair kits.

P0472 – Exhaust Pressure Sensor Low

• Description: Low signal from the exhaust pressure sensor.
• Possible Causes: Short circuit in sensor wiring, faulty sensor.
• Solutions: Check wiring for shorts, replace sensor.
• Adsitco Products: Wiring repair components, exhaust pressure sensors.

P0473 – Exhaust Pressure Sensor High

• Description: High signal from the exhaust pressure sensor.
• Possible Causes: Open circuit in sensor wiring, faulty sensor.
• Solutions: Check for open circuits, replace sensor.
• Adsitco Products: Exhaust pressure sensors, wiring kits.

P0474 – Exhaust Pressure Sensor Intermittent

• Description: Intermittent readings from the exhaust pressure sensor.
• Possible Causes: Loose connections, intermittent wiring faults.
• Solutions: Secure connections, inspect wiring.
• Adsitco Products: Wiring components, exhaust pressure sensors.

P0475 – Exhaust Pressure Control Valve Malfunction

• Description: Malfunction in the exhaust pressure control valve.
• Possible Causes: Faulty valve, clogged exhaust, wiring issues.
• Solutions: Replace valve, clear exhaust, repair wiring.
• Adsitco Products: Exhaust control valves, exhaust components.

P0476 – Exhaust Pressure Control Valve Range/Performance

• Description: Valve performance outside expected range.
• Possible Causes: Sticking valve, clogged exhaust, sensor issues.
• Solutions: Replace/clean valve, unclog exhaust, check sensors.
• Adsitco Products: Exhaust valves, sensors, exhaust maintenance kits.

P0477 – Exhaust Pressure Control Valve Low

• Description: Low signal from the exhaust pressure control valve.
• Possible Causes: Short circuit in valve circuit, faulty valve.
• Solutions: Inspect wiring for shorts, replace valve.
• Adsitco Products: Exhaust pressure control valves, wiring repair components.

P0478 – Exhaust Pressure Control Valve High

• Description: High signal from the exhaust pressure control valve.
• Possible Causes: Open circuit in valve circuit, faulty valve.
• Solutions: Check for open circuits, replace valve.
• Adsitco Products: Exhaust pressure control valves, electrical repair kits.

P0479 – Exhaust Pressure Control Valve Intermittent

• Description: Intermittent signal from the exhaust pressure control valve.
• Possible Causes: Loose connections, intermittent wiring faults.
• Solutions: Tighten connections, inspect wiring.
• Adsitco Products: Electrical connectors, exhaust pressure control valves.

P0480 – Cooling Fan 1 Control Circuit Malfunction

• Description: Problem in the control circuit of cooling fan 1.
• Possible Causes: Faulty relay, wiring issues, faulty fan motor.
• Solutions: Replace relay, repair wiring, replace fan motor.
• Adsitco Products: Cooling fan components, relays, wiring harnesses.

P0481 – Cooling Fan 2 Control Circuit Malfunction

• Description: Issue in the control circuit of cooling fan 2.
• Possible Causes: Defective relay, wiring problems, faulty fan.
• Solutions: Replace relay, check wiring, replace fan.
• Adsitco Products: Cooling system components, electrical repair parts.

P0482 – Cooling Fan 3 Control Circuit Malfunction

• Description: Fault in the control circuit of cooling fan 3.
• Possible Causes: Malfunctioning relay, wiring faults, defective fan.
• Solutions: Replace relay, repair wiring, replace fan.
• Adsitco Products: Cooling fans, fan relays, wiring kits.

P0483 – Cooling Fan Rationality Check Malfunction

• Description: Cooling fan not operating as expected.
• Possible Causes: Faulty fan motor, control module issues, sensor faults.
• Solutions: Replace fan motor, inspect module, replace sensors.
• Adsitco Products: Cooling fans, control modules, sensors.

P0484 – Cooling Fan Circuit Over Current

• Description: High current in cooling fan circuit, potential overload or short.
• Possible Causes: Short in fan motor, wiring issues, module faults, overloaded motor.
• Solutions: Inspect wiring, replace fan motor if needed, check control module.
• Adsitco Products: Cooling fans, wiring harnesses, control modules.

P0485 – Cooling Fan Power/Ground Circuit Malfunction

• Description: Malfunction in power or ground circuit of cooling fan.
• Possible Causes: Faulty connections, damaged wiring, malfunctioning module, ground issues.
• Solutions: Check connections, repair wiring, replace/repair module.
• Adsitco Products: Cooling fans, connectors, wiring harnesses, control modules.

Alt Text: Mercedes-Benz cooling fan, a critical component for engine temperature regulation, often involved in OBD2 fault codes related to cooling system malfunctions.

Mercedes P0500 Fault Codes

P0500 – Vehicle Speed Sensor “A” Malfunction

• Description: Issue with vehicle speed sensor “A”, affecting speedometer, transmission, and potentially ABS.
• Possible Causes: Faulty sensor, damaged wiring/connections, speedometer malfunction, ECU issues.
• Solutions: Replace sensor, inspect/repair wiring, check speedometer/ECU.
• Adsitco Products: Vehicle speed sensors, wiring harnesses, speedometers, ECUs.

P0501 – Vehicle Speed Sensor “A” Range/Performance

• Description: Sensor “A” signal out of range or erratic.
• Possible Causes: Malfunctioning sensor, intermittent wiring issues, speedometer/ECU problems.
• Solutions: Replace/recalibrate sensor, check/repair wiring, inspect speedometer/ECU.
• Adsitco Products: Vehicle speed sensors, wiring harnesses, speedometers, ECUs.

P0502 – Vehicle Speed Sensor “A” Circuit Low Input

• Description: Sensor “A” reporting lower than expected voltage, possible short or sensor issue.
• Possible Causes: Short circuit in wiring, faulty sensor, ECU issues.
• Solutions: Inspect/repair wiring for shorts, replace sensor, check ECU.
• Adsitco Products: Vehicle speed sensors, wiring harnesses, ECUs.

P0503 – Vehicle Speed Sensor “A” Intermittent/Erratic/High

• Description: Sensor “A” readings are intermittent, erratic, or too high.
• Possible Causes: Faulty/intermittent sensor, wiring/connection issues, speedometer/ECU faults.
• Solutions: Replace sensor, inspect/repair wiring, check speedometer/ECU.
• Adsitco Products: Vehicle speed sensors, wiring harnesses, speedometers, ECUs.

P0504 – Brake Switch “A”/”B” Correlation

• Description: Mismatch between signals from brake switches A and B.
• Possible Causes: Faulty brake light switch, misaligned/damaged switches, wiring/connector issues.
• Solutions: Adjust/replace brake light switches, inspect/repair wiring/connectors.
• Adsitco Products: Brake light switches, wiring harnesses, connectors.

P0505 – Idle Control System Malfunction

• Description: Malfunction in the idle control system, leading to erratic idle speed.
• Possible Causes: Faulty idle air control valve, vacuum leaks, throttle body issues, ECU problems.
• Solutions: Replace/clean idle air control valve, repair vacuum leaks, inspect throttle body/ECU.
• Adsitco Products: Idle air control valves, vacuum hoses, throttle bodies, ECUs.

P0506 – Idle Control System RPM Lower Than Expected

• Description: Idle speed consistently lower than expected, potentially causing stalling.
• Possible Causes: Dirty/faulty idle air control valve, vacuum leaks, throttle body/ECU issues.
• Solutions: Clean/replace idle air control valve, repair vacuum leaks, inspect throttle body/ECU.
• Adsitco Products: Idle air control valves, vacuum hoses, throttle bodies, ECUs.

P0507 – Idle Control System RPM Higher Than Expected

• Description: Idle speed consistently higher than expected.
• Possible Causes: Sticking idle air control valve, vacuum leaks, throttle body/ECU malfunctions.
• Solutions: Replace/clean idle air control valve, repair vacuum leaks, inspect throttle body/ECU.
• Adsitco Products: Idle air control valves, vacuum hoses, throttle bodies, ECUs.

P0510 – Closed Throttle Position Switch Malfunction

• Description: Throttle position switch not operating correctly when throttle is closed.
• Possible Causes: Faulty throttle position switch, misaligned/damaged switch, wiring issues.
• Solutions: Replace/adjust throttle position switch, inspect/repair wiring.
• Adsitco Products: Throttle position switches, wiring harnesses.

P0520 – Engine Oil Pressure Sensor/Switch Circuit Malfunction

• Description: Malfunction in engine oil pressure sensor/switch circuit.
• Possible Causes: Faulty sensor/switch, wiring/connector issues, oil level/quality problems.
• Solutions: Replace sensor/switch, check/repair wiring, ensure correct oil level/quality.
• Adsitco Products: Oil pressure sensors/switches, wiring harnesses.

P0521 – Engine Oil Pressure Sensor/Switch Circuit Range/Performance

• Description: Oil pressure sensor/switch circuit reading out of range.
• Possible Causes: Malfunctioning sensor, wiring/connection issues, incorrect oil viscosity.
• Solutions: Replace/recalibrate sensor, inspect wiring, use correct oil viscosity.
• Adsitco Products: Oil pressure sensors, wiring harnesses.

P0522 – Engine Oil Pressure Sensor/Switch Circuit Low Voltage

• Description: Lower than expected voltage from oil pressure sensor/switch circuit.
• Possible Causes: Short circuit in wiring, faulty sensor, low oil level.
• Solutions: Inspect/repair wiring, replace sensor, check/refill oil.
• Adsitco Products: Oil pressure sensors, wiring harnesses.

P0523 – Engine Oil Pressure Sensor/Switch Circuit High Voltage

• Description: Higher than expected voltage from oil pressure sensor/switch circuit.
• Possible Causes: Open circuit/poor connection in wiring, faulty sensor.
• Solutions: Inspect/repair wiring, replace sensor.
• Adsitco Products: Oil pressure sensors, wiring harnesses.

P0530 – A/C Refrigerant Pressure Sensor Circuit Malfunction

• Description: Malfunction in A/C refrigerant pressure sensor circuit.
• Possible Causes: Faulty sensor, wiring/connector issues, refrigerant level problems.
• Solutions: Replace sensor, check/repair wiring, ensure correct refrigerant level.
• Adsitco Products: A/C refrigerant pressure sensors, wiring harnesses.

P0531 – A/C Refrigerant Pressure Sensor Circuit Range/Performance

• Description: A/C refrigerant pressure sensor circuit reading out of range.
• Possible Causes: Malfunctioning sensor, wiring/connection issues, incorrect refrigerant charge.
• Solutions: Replace/recalibrate sensor, inspect wiring, correct refrigerant charge.
• Adsitco Products: A/C refrigerant pressure sensors, wiring harnesses.

P0532 – A/C Refrigerant Pressure Sensor Circuit Low Input

• Description: Lower than expected input from A/C refrigerant pressure sensor circuit.
• Possible Causes: Low refrigerant level, short circuit in wiring, faulty sensor.
• Solutions: Refill refrigerant, inspect/repair wiring, replace sensor.
• Adsitco Products: A/C refrigerant pressure sensors, wiring harnesses, refrigerants.

P0533 – A/C Refrigerant Pressure Sensor Circuit High Input

• Description: Higher than expected input from A/C refrigerant pressure sensor circuit.
• Possible Causes: Overcharged refrigerant, open circuit/poor connection, faulty sensor.
• Solutions: Adjust refrigerant charge, inspect/repair wiring, replace sensor.
• Adsitco Products: A/C refrigerant pressure sensors, wiring harnesses, refrigerants.

P0534 – Air Conditioner Refrigerant Charge Loss

• Description: Detected loss of refrigerant charge in A/C system.
• Possible Causes: Refrigerant leaks, faulty A/C compressor, damaged components.
• Solutions: Check/repair leaks, replace faulty components like compressor.
• Adsitco Products: A/C refrigerants, A/C compressors, A/C system components.

P0550 – Power Steering Pressure Sensor Circuit Malfunction

• Description: Malfunction in power steering pressure sensor circuit.
• Possible Causes: Faulty sensor, wiring/connector issues, fluid level/quality problems.
• Solutions: Replace sensor, check/repair wiring, ensure correct fluid level/quality.
• Adsitco Products: Power steering pressure sensors, wiring harnesses, power steering fluid.

P0551 – Power Steering Pressure Sensor Circuit Range/Performance

• Description: Power steering pressure sensor circuit reading out of range.
• Possible Causes: Malfunctioning sensor, wiring/connection issues, power steering pump faults.
• Solutions: Replace/recalibrate sensor, inspect wiring, check power steering pump.
• Adsitco Products: Power steering pressure sensors, wiring harnesses, power steering pumps.

P0552 – Power Steering Pressure Sensor Circuit Low Input

• Description: Lower than expected input from power steering pressure sensor circuit.
• Possible Causes: Low fluid level, short circuit in wiring, faulty sensor.
• Solutions: Refill fluid, inspect/repair wiring, replace sensor.
• Adsitco Products: Power steering pressure sensors, wiring harnesses, power steering fluid.

P0553 – Power Steering Pressure Sensor Circuit High Input

• Description: Higher than expected input from power steering pressure sensor circuit.
• Possible Causes: Faulty sensor, open circuit/poor connection in wiring.
• Solutions: Replace sensor, inspect/repair wiring.
• Adsitco Products: Power steering pressure sensors, wiring harnesses.

P0554 – Power Steering Pressure Sensor Circuit Intermittent

• Description: Intermittent readings from power steering pressure sensor circuit.
• Possible Causes: Intermittent wiring/connection issues, failing sensor.
• Solutions: Inspect/repair wiring/connections, replace sensor if necessary.
• Adsitco Products: Power steering pressure sensors, wiring harnesses.

P0560 – System Voltage Malfunction

• Description: Malfunction in vehicle’s electrical system voltage.
• Possible Causes: Faulty battery, alternator issues, wiring problems.
• Solutions: Check/replace battery, inspect/repair alternator, check wiring.
• Adsitco Products: Batteries, alternators, wiring harnesses.

P0561 – System Voltage Unstable

• Description: Vehicle’s electrical system voltage is unstable.
• Possible Causes: Alternator malfunctioning, poor battery condition, electrical system issues.
• Solutions: Test/replace alternator, inspect battery, check for electrical faults.
• Adsitco Products: Alternators, batteries, electrical system components.

P0562 – System Voltage Low

• Description: System voltage lower than expected.
• Possible Causes: Weak/failing battery, alternator not charging, electrical connections issues.
• Solutions: Test/replace battery, check alternator function, inspect connections.
• Adsitco Products: Batteries, alternators, electrical connectors.

P0563 – System Voltage High

• Description: System voltage higher than expected.
• Possible Causes: Faulty voltage regulator, alternator issues, electrical malfunctions.
• Solutions: Replace/repair voltage regulator, inspect alternator, check electrical system.
• Adsitco Products: Voltage regulators, alternators, electrical system components.

P0565 – Cruise Control On Signal Malfunction

• Description: Malfunction in “Cruise Control On” signal.
• Possible Causes: Faulty cruise control switch, wiring issues, cruise control module faults.
• Solutions: Replace switch, inspect/repair wiring, check module.
• Adsitco Products: Cruise control switches, wiring harnesses, cruise control modules.

P0566 – Cruise Control Off Signal Malfunction

• Description: Malfunction in “Cruise Control Off” signal.
• Possible Causes: Faulty cruise control switch, wiring problems, cruise control module defects.
• Solutions: Replace switch, check/repair wiring, inspect module.
• Adsitco Products: Cruise control switches, wiring harnesses, cruise control modules.

P0567 – Cruise Control Resume Signal Malfunction

• Description: Malfunction in “Cruise Control Resume” signal.
• Possible Causes: Malfunctioning cruise control switch, wiring issues, module faults.
• Solutions: Replace switch, inspect/repair wiring, check module.
• Adsitco Products: Cruise control switches, wiring harnesses, cruise control modules.

P0568 – Cruise Control Set Signal Malfunction

• Description: Malfunction in “Cruise Control Set” signal.
• Possible Causes: Defective cruise control switch, wiring problems, module issues.
• Solutions: Replace switch, check/repair wiring, inspect module.
• Adsitco Products: Cruise control switches, wiring harnesses, cruise control modules.

P0569 – Cruise Control Coast Signal Malfunction

• Description: Malfunction in “Cruise Control Coast” signal.
• Possible Causes: Faulty cruise control switch, wiring issues, module problems.
• Solutions: Replace switch, inspect/repair wiring, check module.
• Adsitco Products: Cruise control switches, wiring harnesses, cruise control modules.

P0570 – Cruise Control Accel Signal Malfunction

• Description: Malfunction in “Cruise Control Accel” signal.
• Possible Causes: Malfunctioning cruise control switch, wiring problems, module faults.
• Solutions: Replace switch, check/repair wiring, inspect module.
• Adsitco Products: Cruise control switches, wiring harnesses, cruise control modules.

P0571 – Cruise Control/Brake Switch A Circuit Malfunction

• Description: Malfunction in Cruise Control/Brake Switch A circuit.
• Possible Causes: Faulty brake switch, wiring/connector issues, cruise control system faults.
• Solutions: Replace brake switch, inspect/repair wiring, check cruise control system.
• Adsitco Products: Brake switches, wiring harnesses, cruise control systems.

P0572 – Cruise Control/Brake Switch A Circuit Low

• Description: Lower than expected voltage in Cruise Control/Brake Switch A circuit.
• Possible Causes: Short circuit in brake switch wiring, faulty brake switch.
• Solutions: Inspect/repair wiring, replace brake switch.
• Adsitco Products: Brake switches, wiring harnesses.

P0573 – Cruise Control/Brake Switch A Circuit High

• Description: Higher than expected voltage in Cruise Control/Brake Switch A circuit.
• Possible Causes: Open circuit/poor connection in wiring, faulty brake switch.
• Solutions: Inspect/repair wiring, replace brake switch.
• Adsitco Products: Brake switches, wiring harnesses.

P0574 to P0580 (P0575, P0576, P0577, P0578, P0579) – Cruise Control Related Malfunctions

• Description: Various malfunctions related to cruise control system.
• Possible Causes: Vary based on specific code, including module, wiring, sensors, switches.
• Solutions: Depending on code, replace module, repair wiring, replace sensors/switches.
• Adsitco Products: Cruise control modules, wiring harnesses, sensors, switches.

Mercedes P0600 Fault Codes

P0600 – Serial Communication Link Malfunction

• Description: Malfunction in serial communication link, affecting module communication.
• Possible Causes: Faulty wiring, poor connections, module communication issues.
• Solutions: Inspect/repair wiring, ensure proper connections, diagnose/address module communication problems.
• Adsitco Products: Wiring harnesses, control modules.

P0601 – Internal Control Module Memory Check Sum Error

• Description: Memory checksum error in internal control module.
• Possible Causes: Faulty module memory, programming errors.
• Solutions: Evaluate/replace module, reprogram if necessary.
• Adsitco Products: Control modules.

P0602 – Control Module Programming Error

• Description: Programming error in control module.
• Possible Causes: Incorrect programming, software issues.
• Solutions: Reprogram module with correct software, ensure proper programming procedures.
• Adsitco Products: Control modules, programming tools.

P0603 – Internal Control Module Keep Alive Memory (KAM) Error

• Description: KAM error in internal control module.
• Possible Causes: Faulty module KAM, wiring issues.
• Solutions: Evaluate/replace module, inspect/repair wiring.
• Adsitco Products: Control modules, wiring harnesses.

P0604 – Internal Control Module Random Access Memory (RAM) Error

• Description: RAM error in internal control module.
• Possible Causes: Faulty module RAM, wiring issues.
• Solutions: Evaluate/replace module, inspect/repair wiring.
• Adsitco Products: Control modules, wiring harnesses.

P0605 – Internal Control Module Read Only Memory (ROM) Error

• Description: ROM error in internal control module.
• Possible Causes: Faulty module ROM, wiring issues.
• Solutions: Evaluate/replace module, inspect/repair wiring.
• Adsitco Products: Control modules, wiring harnesses.

P0606 – PCM Processor Fault

• Description: Processor fault in Powertrain Control Module (PCM).
• Possible Causes: Faulty PCM, wiring issues.
• Solutions: Evaluate/replace PCM, inspect/repair wiring.
• Adsitco Products: PCM, wiring harnesses.

P0608 – Control Module VSS Output “A” Malfunction

• Description: Vehicle Speed Sensor (VSS) Output “A” malfunction reported by control module.
• Possible Causes: Faulty VSS, wiring issues.
• Solutions: Evaluate/replace VSS, inspect/repair wiring.
• Adsitco Products: Vehicle Speed Sensors, wiring harnesses.

P0609 – Control Module VSS Output “B” Malfunction

• Description: Vehicle Speed Sensor (VSS) Output “B” malfunction reported by control module.
• Possible Causes: Faulty VSS, wiring issues.
• Solutions: Evaluate/replace VSS, inspect/repair wiring.
• Adsitco Products: Vehicle Speed Sensors, wiring harnesses.

P0620 – Generator Control Circuit Malfunction

• Description: Malfunction in generator control circuit.
• Possible Causes: Faulty generator, wiring issues.
• Solutions: Evaluate/replace generator, inspect/repair wiring.
• Adsitco Products: Generators, wiring harnesses.

P0621 – Generator Lamp “L” Control Circuit Malfunction

• Description: Malfunction in generator lamp “L” control circuit.
• Possible Causes: Faulty generator lamp, wiring issues.
• Solutions: Evaluate/replace generator lamp, inspect/repair wiring.
• Adsitco Products: Generator lamps, wiring harnesses.

P0622 – Generator Field “F” Control Circuit Malfunction

• Description: Malfunction in generator field “F” control circuit.
• Possible Causes: Faulty generator field control, wiring issues.
• Solutions: Evaluate/replace generator field control, inspect/repair wiring.
• Adsitco Products: Generator field controls, wiring harnesses.

P0650 – Malfunction Indicator Lamp (MIL) Control Circuit Malfunction

• Description: Malfunction in Malfunction Indicator Lamp (MIL) control circuit.
• Possible Causes: Faulty MIL, wiring issues.
• Solutions: Evaluate/replace MIL, inspect/repair wiring.
• Adsitco Products: Malfunction Indicator Lamps, wiring harnesses.

P0654 – Engine RPM Output Circuit Malfunction

• Description: Malfunction in engine RPM output circuit.
• Possible Causes: Faulty RPM sensor, wiring issues.
• Solutions: Evaluate/replace RPM sensor, inspect/repair wiring.
• Adsitco Products: RPM sensors, wiring harnesses.

P0655 – Engine Hot Lamp Output Control Circuit Malfunction

• Description: Malfunction in Engine Hot Lamp output control circuit.
• Possible Causes: Faulty engine hot lamp, wiring issues.
• Solutions: Evaluate/replace engine hot lamp, inspect/repair wiring.
• Adsitco Products: Engine hot lamps, wiring harnesses.

P0656 – Fuel Level Output Circuit Malfunction

• Description: Malfunction in fuel level output circuit.
• Possible Causes: Faulty fuel level sensor, wiring issues.
• Solutions: Evaluate/replace fuel level sensor, inspect/repair wiring.
• Adsitco Products: Fuel level sensors, wiring harnesses.

Alt Text: Mercedes-Benz Engine Control Module (ECM), a critical computer that can trigger a variety of OBD2 codes related to engine and system malfunctions.

Mercedes P0700 Fault Codes

P0700 – Transmission Control System Malfunction

• Description: General malfunction in Transmission Control System.
• Possible Causes: Wiring issues, faulty transmission control module, sensor problems.
• Solutions: Inspect/repair wiring, evaluate/replace module, address sensor issues.
• Adsitco Products: Transmission control modules, wiring harnesses, sensors.

P0701 – Transmission Control System Range/Performance

• Description: Range/performance issue in Transmission Control System.
• Possible Causes: Faulty transmission control module, sensor problems.
• Solutions: Evaluate/replace module, address sensor issues.
• Adsitco Products: Transmission control modules, sensors.

P0702 – Transmission Control System Electrical

• Description: Electrical issue in Transmission Control System.
• Possible Causes: Wiring issues, faulty transmission control module, sensor problems.
• Solutions: Inspect/repair wiring, evaluate/replace module, address sensor issues.
• Adsitco Products: Transmission control modules, wiring harnesses, sensors.

P0703 – Torque Converter/Brake Switch B Circuit Malfunction

• Description: Malfunction in Torque Converter/Brake Switch B circuit.
• Possible Causes: Open circuit/poor connection in brake switch wiring, faulty torque converter/brake switch.
• Solutions: Inspect/repair wiring, evaluate/replace torque converter/brake switch.
• Adsitco Products: Torque converters, brake switches, wiring harnesses.

P0704 – Clutch Switch Input Circuit Malfunction

• Description: Malfunction in Clutch Switch Input circuit.
• Possible Causes: Open circuit/poor connection in clutch switch wiring, faulty clutch switch.
• Solutions: Inspect/repair wiring, evaluate/replace clutch switch.
• Adsitco Products: Clutch switches, wiring harnesses.

P0705 – Transmission Range Sensor Circuit malfunction (PRNDL Input)

• Description: Malfunction in Transmission Range Sensor circuit (PRNDL input).
• Possible Causes: Faulty transmission range sensor, wiring issues.
• Solutions: Evaluate/replace sensor, inspect/repair wiring.
• Adsitco Products: Transmission range sensors, wiring harnesses.

P0706 – Transmission Range Sensor Circuit Range/Performance

• Description: Range/performance issue in Transmission Range Sensor circuit (PRNDL input).
• Possible Causes: Faulty transmission range sensor, wiring issues.
• Solutions: Evaluate/replace sensor, inspect/repair wiring.
• Adsitco Products: Transmission range sensors, wiring harnesses.

P0707 – Transmission Range Sensor Circuit Low Input

• Description: Low input in Transmission Range Sensor circuit (PRNDL input).
• Possible Causes: Faulty transmission range sensor, wiring issues.
• Solutions: Evaluate/replace sensor, inspect/repair wiring.
• Adsitco Products: Transmission range sensors, wiring harnesses.

P0708 – Transmission Range Sensor Circuit High Input

• Description: High input in Transmission Range Sensor circuit (PRNDL input).
• Possible Causes: Faulty transmission range sensor, wiring issues.
• Solutions: Evaluate/replace sensor, inspect/repair wiring.
• Adsitco Products: Transmission range sensors, wiring harnesses.

P0709 – Transmission Range Sensor Circuit Intermittent

• Description: Intermittent issue in Transmission Range Sensor circuit (PRNDL input).
• Possible Causes: Faulty transmission range sensor, wiring issues.
• Solutions: Evaluate/replace sensor, inspect/repair wiring.
• Adsitco Products: Transmission range sensors, wiring harnesses.

P0710 – Transmission Fluid Temperature Sensor Circuit Malfunction

• Description: Malfunction in Transmission Fluid Temperature Sensor circuit.
• Possible Causes: Faulty transmission fluid temperature sensor, wiring issues.
• Solutions: Evaluate/replace sensor, inspect/repair wiring.
• Adsitco Products: Transmission fluid temperature sensors, wiring harnesses.

P0711 – Transmission Fluid Temperature Sensor Circuit Range/Performance

• Description: Range/performance issue in Transmission Fluid Temperature Sensor circuit.
• Possible Causes: Faulty transmission fluid temperature sensor, wiring issues.
• Solutions: Evaluate/replace sensor, inspect/repair wiring.
• Adsitco Products: Transmission fluid temperature sensors, wiring harnesses.

P0712 – Transmission Fluid Temperature Sensor Circuit Low Input

• Description: Low input in Transmission Fluid Temperature Sensor circuit.
• Possible Causes: Faulty transmission fluid temperature sensor, wiring issues.
• Solutions: Evaluate/replace sensor, inspect/repair wiring.
• Adsitco Products: Transmission fluid temperature sensors, wiring harnesses.

P0713 – Transmission Fluid Temperature Sensor Circuit High Input

• Description: High input in Transmission Fluid Temperature Sensor circuit.
• Possible Causes: Faulty transmission fluid temperature sensor, wiring issues.
• Solutions: Evaluate/replace sensor, inspect/repair wiring.
• Adsitco Products: Transmission fluid temperature sensors, wiring harnesses.

P0714 – Transmission Fluid Temperature Sensor Circuit Intermittent

• Description: Intermittent issue in Transmission Fluid Temperature Sensor circuit.
• Possible Causes: Faulty transmission fluid temperature sensor, wiring issues.
• Solutions: Evaluate/replace sensor, inspect/repair wiring.
• Adsitco Products: Transmission fluid temperature sensors, wiring harnesses.

P0715 – Input/Turbine Speed Sensor Circuit Malfunction

• Description: Malfunction in Input/Turbine Speed Sensor circuit.
• Possible Causes: Faulty input/turbine speed sensor, wiring issues.
• Solutions: Evaluate/replace sensor, inspect/repair wiring.
• Adsitco Products: Input/turbine speed sensors, wiring harnesses.

P0716 – Input/Turbine Speed Sensor Circuit Range/Performance

• Description: Range/performance issue in Input/Turbine Speed Sensor circuit.
• Possible Causes: Faulty input/turbine speed sensor, wiring issues.
• Solutions: Evaluate/replace sensor, inspect/repair wiring.
• Adsitco Products: Input/turbine speed sensors, wiring harnesses.

P0717 – Input/Turbine Speed Sensor Circuit No Signal

• Description: No signal from Input/Turbine Speed Sensor circuit.
• Possible Causes: Faulty input/turbine speed sensor, wiring issues.
• Solutions: Evaluate/replace sensor, inspect/repair wiring.
• Adsitco Products: Input/turbine speed sensors, wiring harnesses.

P0718 – Input/Turbine Speed Sensor Circuit Intermittent

• Description: Intermittent issue in Input/Turbine Speed Sensor circuit.
• Possible Causes: Faulty input/turbine speed sensor, wiring issues.
• Solutions: Evaluate/replace sensor, inspect/repair wiring.
• Adsitco Products: Input/turbine speed sensors, wiring harnesses.

P0719 – Torque Converter/Brake Switch B Circuit Low

• Description: Low input in Torque Converter/Brake Switch B circuit.
• Possible Causes: Open circuit/poor connection in brake switch wiring, faulty torque converter/brake switch.
• Solutions: Inspect/repair wiring, evaluate/replace torque converter/brake switch.
• Adsitco Products: Torque converters, brake switches, wiring harnesses.

P0720 – Output Speed Sensor Circuit Malfunction

• Description: Malfunction in Output Speed Sensor circuit.
• Possible Causes: Faulty output speed sensor, wiring issues.
• Solutions: Evaluate/replace sensor, inspect/repair wiring.
• Adsitco Products: Output speed sensors, wiring harnesses.

P0721 – Output Speed Sensor Range/Performance

• Description: Range/performance issue in Output Speed Sensor circuit.
• Possible Causes: Faulty output speed sensor, wiring issues.
• Solutions: Evaluate/replace sensor, inspect/repair wiring.
• Adsitco Products: Output speed sensors, wiring harnesses.

P0722 – Output Speed Sensor No Signal

• Description: No signal from Output Speed Sensor circuit.
• Possible Causes: Faulty output speed sensor, wiring issues.
• Solutions: Evaluate/replace sensor, inspect/repair wiring.
• Adsitco Products: Output speed sensors, wiring harnesses.

P0723 – Output Speed Sensor Intermittent

• Description: Intermittent issue in Output Speed Sensor circuit.
• Possible Causes: Faulty output speed sensor, wiring issues.
• Solutions: Evaluate/replace sensor, inspect/repair wiring.
• Adsitco Products: Output speed sensors, wiring harnesses.

P0724 – Torque Converter/Brake Switch B Circuit High

• Description: High input in Torque Converter/Brake Switch B circuit.
• Possible Causes: Open circuit/poor connection in brake switch wiring, faulty torque converter/brake switch.
• Solutions: Inspect/repair wiring, evaluate/replace torque converter/brake switch.
• Adsitco Products: Torque converters, brake switches, wiring harnesses.

P0725 – Engine Speed input Circuit Malfunction

• Description: Malfunction in Engine Speed Input circuit.
• Possible Causes: Faulty engine speed sensor, wiring issues.
• Solutions: Evaluate/replace sensor, inspect/repair wiring.
• Adsitco Products: Engine speed sensors, wiring harnesses.

P0726 – Engine Speed Input Circuit Range/Performance

• Description: Range/performance issue in Engine Speed Input circuit.
• Possible Causes: Faulty engine speed sensor, wiring issues.
• Solutions: Evaluate/replace sensor, inspect/repair wiring.
• Adsitco Products: Engine speed sensors, wiring harnesses.

P0727 – Engine Speed Input Circuit No Signal

• Description: No signal from Engine Speed Input circuit.
• Possible Causes: Faulty engine speed sensor, wiring issues.
• Solutions: Evaluate/replace sensor, inspect/repair wiring.
• Adsitco Products: Engine speed sensors, wiring harnesses.

P0728 – Engine Speed Input Circuit Intermittent

• Description: Intermittent issue in Engine Speed Input circuit.
• Possible Causes: Faulty engine speed sensor, wiring issues.
• Solutions: Evaluate/replace sensor, inspect/repair wiring.
• Adsitco Products: Engine speed sensors, wiring harnesses.

P0730 – Incorrect Gear Ratio

• Description: Incorrect gear ratio detected in transmission.
• Possible Causes: Faulty sensors, transmission component issues.
• Solutions: Evaluate/replace sensors, inspect/repair transmission components.
• Adsitco Products: Sensors, transmission components.

P0731 – Gear 1 Incorrect Ratio

• Description: Incorrect gear ratio in Gear 1.
• Possible Causes: Faulty sensors, transmission component issues.
• Solutions: Evaluate/replace sensors, inspect/repair transmission components.
• Adsitco Products: Sensors, transmission components.

P0732 – Gear 2 Incorrect Ratio

• Description: Incorrect gear ratio in Gear 2.
• Possible Causes: Faulty sensors, transmission component issues.
• Solutions: Evaluate/replace sensors, inspect/repair transmission components.
• Adsitco Products: Sensors, transmission components.

P0733 – Gear 3 Incorrect Ratio

• Description: Incorrect gear ratio in Gear 3.
• Possible Causes: Faulty sensors, transmission component issues.
• Solutions: Evaluate/replace sensors, inspect/repair transmission components.
• Adsitco Products: Sensors, transmission components.

P0734 – Gear 4 Incorrect Ratio

• Description: Incorrect gear ratio in Gear 4.
• Possible Causes: Faulty sensors, transmission component issues.
• Solutions: Evaluate/replace sensors, inspect/repair transmission components.
• Adsitco Products: Sensors, transmission components.

P0735 – Gear 5 Incorrect Ratio

• Description: Incorrect gear ratio in Gear 5.
• Possible Causes: Faulty sensors, transmission component issues.
• Solutions: Evaluate/replace sensors, inspect/repair transmission components.
• Adsitco Products: Sensors, transmission components.

P0736 – Reverse Incorrect Gear Ratio

• Description: Incorrect gear ratio in Reverse.
• Possible Causes: Faulty sensors, transmission component issues.
• Solutions: Evaluate/replace sensors, inspect/repair transmission components.
• Adsitco Products: Sensors, transmission components.

P0740 – Torque Converter Clutch Circuit Malfunction

• Description: Malfunction in Torque Converter Clutch circuit.
• Possible Causes: Faulty torque converter, wiring issues.
• Solutions: Evaluate/replace torque converter, inspect/repair wiring.
• Adsitco Products: Torque converters, wiring harnesses.

P0741 – Torque Converter Clutch Circuit Performance or Stuck Off

• Description: Performance issue or stuck off in Torque Converter Clutch circuit.
• Possible Causes: Faulty torque converter, wiring issues.
• Solutions: Evaluate/replace torque converter, inspect/repair wiring.
• Adsitco Products: Torque converters, wiring harnesses.

P0742 – Torque Converter Clutch Circuit Stuck On

• Description: Stuck on in Torque Converter Clutch circuit.
• Possible Causes: Faulty torque converter, wiring issues.
• Solutions: Evaluate/replace torque converter, inspect/repair wiring.
• Adsitco Products: Torque converters, wiring harnesses.

P0743 – Torque Converter Clutch Circuit Electrical

• Description: Electrical issue in Torque Converter Clutch circuit.
• Possible Causes: Faulty torque converter, wiring issues.
• Solutions: Evaluate/replace torque converter, inspect/repair wiring.
• Adsitco Products: Torque converters, wiring harnesses.

P0744 – Torque Converter Clutch Circuit Intermittent

• Description: Intermittent issue in Torque Converter Clutch circuit.
• Possible Causes: Faulty torque converter, wiring issues.
• Solutions: Evaluate/replace torque converter, inspect/repair wiring.
• Adsitco Products: Torque converters, wiring harnesses.

P0745 – Pressure Control Solenoid Malfunction

• Description: Malfunction in Pressure Control Solenoid.
• Possible Causes: Faulty pressure control solenoid, wiring issues.
• Solutions: Evaluate/replace pressure control solenoid, inspect/repair wiring.
• Adsitco Products: Pressure control solenoids, wiring harnesses.

P0746 – Pressure Control Solenoid Performance or Stuck Off

• Description: Performance issue or stuck off in Pressure Control Solenoid.
• Possible Causes: Faulty pressure control solenoid, wiring issues.
• Solutions: Evaluate/replace pressure control solenoid, inspect/repair wiring.
• Adsitco Products: Pressure control solenoids, wiring harnesses.

P0747 – Pressure Control Solenoid Stuck On

• Description: Stuck on in Pressure Control Solenoid.
• Possible Causes: Faulty pressure control solenoid, wiring issues.
• Solutions: Evaluate/replace pressure control solenoid, inspect/repair wiring.
• Adsitco Products: Pressure control solenoids, wiring harnesses.

P0748 – Pressure Control Solenoid Electrical

• Description: Electrical issue in Pressure Control Solenoid.
• Possible Causes: Faulty pressure control solenoid, wiring issues.
• Solutions: Evaluate/replace pressure control solenoid, inspect/repair wiring.
• Adsitco Products: Pressure control solenoids, wiring harnesses.

P0749 – Pressure Control Solenoid Intermittent

• Description: Intermittent issue in Pressure Control Solenoid.
• Possible Causes: Faulty pressure control solenoid, wiring issues.
• Solutions: Evaluate/replace pressure control solenoid, inspect/repair wiring.
• Adsitco Products: Pressure control solenoids, wiring harnesses.

P0750 – Shift Solenoid A Malfunction

• Description: Malfunction in Shift Solenoid A.
• Possible Causes: Faulty shift solenoid A, wiring issues.
• Solutions: Evaluate/replace shift solenoid A, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0751 – Shift Solenoid A Performance or Stuck Off

• Description: Performance issue or stuck off in Shift Solenoid A.
• Possible Causes: Faulty shift solenoid A, wiring issues.
• Solutions: Evaluate/replace shift solenoid A, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0752 – Shift Solenoid A Stuck On

• Description: Stuck on in Shift Solenoid A.
• Possible Causes: Faulty shift solenoid A, wiring issues.
• Solutions: Evaluate/replace shift solenoid A, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0753 – Shift Solenoid A Electrical

• Description: Electrical issue in Shift Solenoid A.
• Possible Causes: Faulty shift solenoid A, wiring issues.
• Solutions: Evaluate/replace shift solenoid A, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0754 – Shift Solenoid A Intermittent

• Description: Intermittent issue in Shift Solenoid A.
• Possible Causes: Faulty shift solenoid A, wiring issues.
• Solutions: Evaluate/replace shift solenoid A, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0755 – Shift Solenoid B Malfunction

• Description: Malfunction in Shift Solenoid B.
• Possible Causes: Faulty shift solenoid B, wiring issues.
• Solutions: Evaluate/replace shift solenoid B, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0756 – Shift Solenoid B Performance or Stuck Off

• Description: Performance issue or stuck off in Shift Solenoid B.
• Possible Causes: Faulty shift solenoid B, wiring issues.
• Solutions: Evaluate/replace shift solenoid B, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0757 – Shift Solenoid B Stuck On

• Description: Stuck on in Shift Solenoid B.
• Possible Causes: Faulty shift solenoid B, wiring issues.
• Solutions: Evaluate/replace shift solenoid B, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0758 – Shift Solenoid B Electrical

• Description: Electrical issue in Shift Solenoid B.
• Possible Causes: Faulty shift solenoid B, wiring issues.
• Solutions: Evaluate/replace shift solenoid B, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0759 – Shift Solenoid B Intermittent

• Description: Intermittent issue in Shift Solenoid B.
• Possible Causes: Faulty shift solenoid B, wiring issues.
• Solutions: Evaluate/replace shift solenoid B, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0760 – Shift Solenoid C Malfunction

• Description: Malfunction in Shift Solenoid C.
• Possible Causes: Faulty shift solenoid C, wiring issues.
• Solutions: Evaluate/replace shift solenoid C, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0761 – Shift Solenoid C Performance or Stuck Off

• Description: Performance issue or stuck off in Shift Solenoid C.
• Possible Causes: Faulty shift solenoid C, wiring issues.
• Solutions: Evaluate/replace shift solenoid C, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0762 – Shift Solenoid C Stuck On

• Description: Stuck on in Shift Solenoid C.
• Possible Causes: Faulty shift solenoid C, wiring issues.
• Solutions: Evaluate/replace shift solenoid C, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0763 – Shift Solenoid C Electrical

• Description: Electrical issue in Shift Solenoid C.
• Possible Causes: Faulty shift solenoid C, wiring issues.
• Solutions: Evaluate/replace shift solenoid C, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0764 – Shift Solenoid C Intermittent

• Description: Intermittent issue in Shift Solenoid C.
• Possible Causes: Faulty shift solenoid C, wiring issues.
• Solutions: Evaluate/replace shift solenoid C, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0765 – Shift Solenoid D Malfunction

• Description: Malfunction in Shift Solenoid D.
• Possible Causes: Faulty shift solenoid D, wiring issues.
• Solutions: Evaluate/replace shift solenoid D, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0766 – Shift Solenoid D Performance or Stuck Off

• Description: Performance issue or stuck off in Shift Solenoid D.
• Possible Causes: Faulty shift solenoid D, wiring issues.
• Solutions: Evaluate/replace shift solenoid D, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0767 – Shift Solenoid D Stuck On

• Description: Stuck on in Shift Solenoid D.
• Possible Causes: Faulty shift solenoid D, wiring issues.
• Solutions: Evaluate/replace shift solenoid D, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0768 – Shift Solenoid D Electrical

• Description: Electrical issue in Shift Solenoid D.
• Possible Causes: Faulty shift solenoid D, wiring issues.
• Solutions: Evaluate/replace shift solenoid D, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0769 – Shift Solenoid D Intermittent

• Description: Intermittent issue in Shift Solenoid D.
• Possible Causes: Faulty shift solenoid D, wiring issues.
• Solutions: Evaluate/replace shift solenoid D, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0770 – Shift Solenoid E Malfunction

• Description: Malfunction in Shift Solenoid E.
• Possible Causes: Faulty shift solenoid E, wiring issues.
• Solutions: Evaluate/replace shift solenoid E, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0771 – Shift Solenoid E Performance or Stuck Off

• Description: Performance issue or stuck off in Shift Solenoid E.
• Possible Causes: Faulty shift solenoid E, wiring issues.
• Solutions: Evaluate/replace shift solenoid E, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0772 – Shift Solenoid E Stuck On

• Description: Stuck on in Shift Solenoid E.
• Possible Causes: Faulty shift solenoid E, wiring issues.
• Solutions: Evaluate/replace shift solenoid E, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0773 – Shift Solenoid E Electrical

• Description: Electrical issue in Shift Solenoid E.
• Possible Causes: Faulty shift solenoid E, wiring issues.
• Solutions: Evaluate/replace shift solenoid E, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0774 – Shift Solenoid E Intermittent

• Description: Intermittent issue in Shift Solenoid E.
• Possible Causes: Faulty shift solenoid E, wiring issues.
• Solutions: Evaluate/replace shift solenoid E, inspect/repair wiring.
• Adsitco Products: Shift solenoids, wiring harnesses.

P0780 – Shift Malfunction

• Description: General shift malfunction in transmission.
• Possible Causes: Faulty sensors, transmission component issues.
• Solutions: Evaluate/replace sensors, inspect/repair transmission components.
• Adsitco Products: Sensors, transmission components.

P0781 – 1-2 Shift Malfunction

• Description: Malfunction in 1-2 shift.
• Possible Causes: Faulty sensors, transmission component issues.
• Solutions: Evaluate/replace sensors, inspect/repair transmission components.
• Adsitco Products: Sensors, transmission components.

P0782 – 2-3 Shift Malfunction

• Description: Malfunction in 2-3 shift.
• Possible Causes: Faulty sensors, transmission component issues.
• Solutions: Evaluate/replace sensors, inspect/repair transmission components.
• Adsitco Products: Sensors, transmission components.

P0783 – 3-4 Shift Malfunction

• Description: Malfunction in 3-4 shift.
• Possible Causes: Faulty sensors, transmission component issues.
• Solutions: Evaluate/replace sensors, inspect/repair transmission components.
• Adsitco Products: Sensors, transmission components.

P0784 – 4-5 Shift Malfunction

• Description: Malfunction in 4-5 shift.
• Possible Causes: Faulty sensors, transmission component issues.
• Solutions: Evaluate/replace sensors, inspect/repair transmission components.
• Adsitco Products: Sensors, transmission components.

P0785 – Shift/Timing Solenoid Malfunction

• Description: Malfunction in Shift/Timing Solenoid.
• Possible Causes: Faulty Shift/Timing Solenoid, wiring issues.
• Solutions: Evaluate/replace Shift/Timing Solenoid, inspect/repair wiring.
• Adsitco Products: Shift/Timing Solenoids, wiring harnesses.

P0786 – Shift/Timing Solenoid Range/Performance

• Description: Range/performance issue in Shift/Timing Solenoid.
• Possible Causes: Faulty Shift/Timing Solenoid, wiring issues.
• Solutions: Evaluate/replace Shift/Timing Solenoid, inspect/repair wiring.
• Adsitco Products: Shift/Timing Solenoids, wiring harnesses.

P0787 – Shift/Timing Solenoid Low

• Description: Low signal from Shift/Timing Solenoid.
• Possible Causes: Faulty Shift/Timing Solenoid, wiring issues.
• Solutions: Evaluate/replace Shift/Timing Solenoid, inspect/repair wiring.
• Adsitco Products: Shift/Timing Solenoids, wiring harnesses.

P0788 – Shift/Timing Solenoid High

• Description: High signal from Shift/Timing Solenoid.
• Possible Causes: Faulty Shift/Timing Solenoid, wiring issues.
• Solutions: Evaluate/replace Shift/Timing Solenoid, inspect/repair wiring.
• Adsitco Products: Shift/Timing Solenoids, wiring harnesses.

P0789 – Shift/Timing Solenoid Intermittent

• Description: Intermittent issue in Shift/Timing Solenoid.
• Possible Causes: Faulty Shift/Timing Solenoid, wiring issues.
• Solutions: Evaluate/replace Shift/Timing Solenoid, inspect/repair wiring.
• Adsitco Products: Shift/Timing Solenoids, wiring harnesses.

P0790 – Normal/Performance Switch Circuit Malfunction

• Description: Malfunction in Normal/Performance Switch Circuit.
• Possible Causes: Faulty switch, wiring issues.
• Solutions: Evaluate/replace switch, inspect/repair wiring.
• Adsitco Products: Switches, wiring harnesses.

Mercedes P0800 Fault Codes

P0801 – Reverse Inhibit Control Circuit Malfunction

• Description: Malfunction in Reverse Inhibit Control Circuit, prevents reverse gear engagement.
• Possible Causes: Faulty control solenoid, wiring issues, ECM problems.
• Solutions: Inspect/replace solenoid, check/repair wiring, diagnose/repair ECM.
• Adsitco Products: Solenoids, wiring harnesses, ECM components.

P0803 – 1-4 Upshift (Skip Shift) Solenoid Control Circuit Malfunction

• Description: Malfunction in 1-4 Upshift Solenoid Control Circuit, affects gear transition.
• Possible Causes: Faulty skip shift solenoid, damaged wiring, poor connection.
• Solutions: Replace solenoid, repair wiring, ensure secure connections.
• Adsitco Products: Skip shift solenoids, wiring harnesses.

P0804 – 1-4 Upshift (Skip Shift) Lamp Control Circuit Malfunction

• Description: Malfunction in Skip Shift Lamp Control Circuit, affects gear change signaling.
• Possible Causes: Faulty lamp/control circuit, wiring issues.
• Solutions: Check/replace lamp, repair control circuit, fix wiring issues.
• Adsitco Products: Indicator lamps, wiring harnesses.

P0805 – Clutch Position Sensor Circuit Malfunction

• Description: Malfunction in Clutch Position Sensor Circuit, affects clutch position gauging.
• Possible Causes: Faulty sensor, wiring issues, bad connection.
• Solutions: Replace sensor, inspect/repair wiring, ensure secure connections.
• Adsitco Products: Clutch position sensors, wiring harnesses.

P0806 – Clutch Position Sensor Circuit Range/Performance

• Description: Clutch Position Sensor Circuit out of range/poor performance.
• Possible Causes: Misadjusted sensor, faulty sensor, wiring problems.
• Solutions: Adjust sensor, replace if faulty, repair wiring.
• Adsitco Products: Clutch position sensors, wiring harnesses.

P0807 – Clutch Position Sensor Circuit Low

• Description: Low input from Clutch Position Sensor Circuit, possible short.
• Possible Causes: Short to ground, faulty sensor.
• Solutions: Inspect circuit for shorts, replace sensor.
• Adsitco Products: Clutch position sensors, wiring harnesses.

P0808 – Clutch Position Sensor Circuit High

• Description: High input from Clutch Position Sensor Circuit, possible open.
• Possible Causes: Open circuit, faulty sensor.
• Solutions: Check for opens, replace sensor.
• Adsitco Products: Clutch position sensors, wiring harnesses.

P0809 – Clutch Position Sensor Circuit Intermittent Ckt

• Description: Intermittent signals from Clutch Position Sensor Circuit.
• Possible Causes: Loose/corroded connections, intermittent sensor failure, wiring issues.
• Solutions: Check/secure connections, replace sensor if intermittent failure, repair wiring.
• Adsitco Products: Clutch position sensors, wiring harnesses, connector kits.

P0810 – Clutch Position Control Malfunction

• Description: Malfunction in Clutch Position Control System, affects clutch engagement.
• Possible Causes: Faulty clutch actuator, malfunctioning sensor, ECM issues.
• Solutions: Inspect/replace actuator, test/replace sensor, diagnose ECM.
• Adsitco Products: Clutch actuators, clutch position sensors, ECM components.

P0811 – Clutch Slippage Excessive

• Description: Excessive clutch slippage detected.
• Possible Causes: Worn clutch components, improper adjustment, hydraulic system issues.
• Solutions: Replace worn components, adjust clutch, inspect hydraulic system.
• Adsitco Products: Clutch kits, hydraulic system components.

P0812 – Reverse Input Circuit Malfunction

• Description: Malfunction in Reverse Input Circuit, affects reverse gear recognition.
• Possible Causes: Faulty reverse gear switch, wiring issues, bad connection.
• Solutions: Replace switch, inspect/repair wiring, ensure secure connections.
• Adsitco Products: Reverse gear switches, wiring harnesses.

P0813 – Reverse Output Circuit Malfunction

• Description: Malfunction in Reverse Output Circuit, affects reverse gear signal/action.
• Possible Causes: Faulty output sensors/circuits, wiring issues.
• Solutions: Inspect/replace output sensors/circuits, repair wiring.
• Adsitco Products: Sensors, wiring harnesses.

P0814 – Trans Range Display Circuit Malfunction

• Description: Malfunction in Transmission Range Display Circuit, incorrect gear display.
• Possible Causes: Faulty range sensor, display issues, wiring malfunctions.
• Solutions: Replace range sensor, repair/replace display unit, fix wiring.
• Adsitco Products: Transmission range sensors, display units, wiring harnesses.

P0815 – Upshift Switch Circuit Malfunction

• Description: Malfunction in Upshift Switch Circuit, affects gear selection.
• Possible Causes: Faulty upshift switch, wiring/connector issues.
• Solutions: Replace switch, inspect/repair wiring/connectors.
• Adsitco Products: Shift switches, wiring harnesses, connectors.

P0816 – Downshift Switch Circuit Malfunction

• Description: Malfunction in Downshift Switch Circuit, affects gear selection.
• Possible Causes: Faulty downshift switch, wiring/connector issues.
• Solutions: Replace switch, check/repair wiring/connectors.
• Adsitco Products: Shift switches, wiring harnesses, connectors.

P0817 – Starter Disable Circuit

• Description: Issue in Starter Disable Circuit, may prevent engine start.
• Possible Causes: Faulty relay/module, wiring issues, security system malfunction.
• Solutions: Inspect/replace relay/module, repair wiring, diagnose security system.
• Adsitco Products: Relays, control modules, security system components.

P0818 – Driveline Disconnect Switch Input

• Description: Malfunction in Driveline Disconnect Switch Input, affects driveline engagement.
• Possible Causes: Faulty switch, wiring issues, ECM problems.
• Solutions: Replace switch, inspect/repair wiring, check ECM.
• Adsitco Products: Switches, wiring harnesses, ECM components.

P0820 – Gear Lever X-Y Sensor Circuit

• Description: Malfunction in Gear Lever X-Y Sensor Circuit, affects gear lever position detection.
• Possible Causes: Faulty gear position sensor, wiring/connector issues.
• Solutions: Replace sensor, inspect/repair wiring/connectors.
• Adsitco Products: Gear position sensors, wiring harnesses, connectors.

P0821 – Gear Lever X Sensor Circuit

• Description: Malfunction in Gear Lever X Sensor Circuit, affects X-axis position detection.
• Possible Causes: Faulty gear lever sensor, wiring issues, connector malfunctions.
• Solutions: Replace sensor, check/repair wiring/connectors.
• Adsitco Products: Gear lever sensors, wiring harnesses, connectors.

P0822 – Gear Lever Y Sensor Circuit

• Description: Malfunction in Gear Lever Y Sensor Circuit, affects Y-axis position detection.
• Possible Causes: Faulty gear lever sensor, wiring issues, connector problems.
• Solutions: Replace sensor, inspect/repair wiring/connectors.
• Adsitco Products: Gear lever sensors, wiring harnesses, connectors.

P0823 – Gear Lever X Sensor Circuit Intermittent Ckt

• Description: Intermittent faults in Gear Lever X Sensor Circuit.
• Possible Causes: Loose connections, intermittent sensor faults, wiring harness issues.
• Solutions: Secure connections, replace sensor if intermittent failure, address wiring.
• Adsitco Products: Gear lever sensors, wiring harnesses, connector kits.

P0824 – Gear Lever Y Sensor Circuit Intermittent Ckt

• Description: Intermittent issues in Gear Lever Y Sensor Circuit.
• Possible Causes: Intermittent sensor failures, loose/corroded connections, wiring problems.
• Solutions: Check/secure connections, replace sensor, repair wiring.
• Adsitco Products: Gear lever sensors, wiring harnesses, connectors.

P0830 – Clutch Position Switch A Circuit Malfunction

• Description: Malfunction in Clutch Position Switch A Circuit, affects clutch operation.
• Possible Causes: Faulty switch, wiring/connector issues.
• Solutions: Replace switch, inspect/repair wiring/connectors.
• Adsitco Products: Clutch position switches, wiring harnesses, connectors.

P0831 – Clutch Position Switch A Circuit Low

• Description: Low input in Clutch Position Switch A Circuit, possible short to ground.
• Possible Causes: Short circuit, faulty switch.
• Solutions: Inspect for shorts, replace switch.
• Adsitco Products: Clutch position switches, wiring harnesses.

P0832 – Clutch Position Switch A Circuit High

• Description: High input from Clutch Position Switch A Circuit, possible open circuit.
• Possible Causes: Open circuit, faulty switch.
• Solutions: Check for opens, replace switch.
• Adsitco Products: Clutch position switches, wiring harnesses.

P0833 – Clutch Position Switch B Circuit Malfunction

• Description: Malfunction in Clutch Position Switch B Circuit, affects clutch operation.
• Possible Causes: Faulty switch, wiring/connector issues.
• Solutions: Replace switch, inspect/repair wiring/connectors.
• Adsitco Products: Clutch position switches, wiring harnesses, connectors.

P0834 – Clutch Position Switch B Circuit Low

• Description: Low input in Clutch Position Switch B Circuit, possible short to ground.
• Possible Causes: Short circuit, faulty switch.
• Solutions: Inspect for shorts, replace switch.
• Adsitco Products: Clutch position switches, wiring harnesses.

P0835 – Clutch Position Switch B Circuit High

• Description: High input from Clutch Position Switch B Circuit, likely open circuit.
• Possible Causes: Open circuit, faulty switch.
• Solutions: Check for open circuits, replace switch.
• Adsitco Products: Clutch position switches, wiring harnesses.

P0836 – 4 Wheel Drive Switch Circuit Malfunction

• Description: Malfunction in 4 Wheel Drive Switch Circuit, affects 4WD operation.
• Possible Causes: Faulty 4WD switch, wiring issues, transfer case problems.
• Solutions: Replace switch, inspect/repair wiring, diagnose transfer case.
• Adsitco Products: 4WD switches, wiring harnesses, transfer case components.

P0837 – 4 Wheel Drive Switch CKT Range/Perf

• Description: 4 Wheel Drive Switch Circuit out of range/poor performance.
• Possible Causes: Maladjusted switch, faulty switch, wiring issues.
• Solutions: Adjust/replace switch, repair wiring problems.
• Adsitco Products: 4WD switches, wiring harnesses.

P0838 – 4 Wheel Drive Switch Circuit Low

• Description: Low input from 4 Wheel Drive Switch Circuit, possible short to ground.
• Possible Causes: Short circuit, faulty 4WD switch.
• Solutions: Inspect for shorts, replace switch.
• Adsitco Products: 4WD switches, wiring harnesses.

P0839 – 4 Wheel Drive Switch Circuit High

• Description: High input from 4 Wheel Drive Switch Circuit, likely open circuit.
• Possible Causes: Open circuit, faulty 4WD switch.
• Solutions: Check for open circuits, replace switch.
• Adsitco Products: 4WD switches, wiring harnesses.

P0840 – Trans Fluid Press Sensor/Switch A Circuit Malfunction

• Description: Malfunction in Transmission Fluid Pressure Sensor/Switch A Circuit.
• Possible Causes: Faulty sensor/switch, wiring/connector issues, hydraulic problems.
• Solutions: Replace sensor/switch, repair wiring/connectors, diagnose hydraulic system.
• Adsitco Products: Pressure sensors/switches, wiring harnesses, hydraulic system components.

P0841 – Trans Fluid Press Sensor/Switch A CKT Range/Perf

• Description: Transmission Fluid Pressure Sensor/Switch A Circuit out of range/poor performance.
• Possible Causes: Faulty sensor/switch, fluid level/quality issues, hydraulic circuit problems.
• Solutions: Replace sensor/switch, check fluid level/quality, inspect hydraulic circuit.
• Adsitco Products: Pressure sensors/switches, transmission fluids, hydraulic system components.

P0842 – Trans Fluid Press Sensor/Switch A Circuit Low

• Description: Low input from Transmission Fluid Pressure Sensor/Switch A Circuit.
• Possible Causes: Electrical short, faulty sensor/switch, low fluid pressure.
• Solutions: Inspect for shorts, replace sensor/switch, diagnose hydraulic issues.
• Adsitco Products: Pressure sensors/switches, wiring harnesses, hydraulic system components.

P0843 – Trans Fluid Press Sensor/Switch A Circuit High

• Description: High input from Transmission Fluid Pressure Sensor/Switch A Circuit.
• Possible Causes: Electrical open, faulty sensor/switch, high fluid pressure.
• Solutions: Check for opens, replace sensor/switch, address high fluid pressure causes.
• Adsitco Products: Pressure sensors/switches, wiring harnesses, hydraulic system components.

P0844 – Trans Fluid Press Sensor/Switch A CKT Intermittent

• Description: Intermittent faults in Transmission Fluid Pressure Sensor/Switch A Circuit.
• Possible Causes: Loose connections, intermittent sensor/switch faults, wiring harness issues.
• Solutions: Secure connections, replace sensor/switch if intermittent, address wiring.
• Adsitco Products: Pressure sensors/switches, wiring harnesses, connector kits.

P0845 – Trans Fluid Press Sensor/Switch B Circuit Malfunction

• Description: Malfunction in Transmission Fluid Pressure Sensor/Switch B Circuit.
• Possible Causes: Faulty sensor/switch, wiring/connector issues, hydraulic problems.
• Solutions: Replace sensor/switch, repair wiring/connectors, diagnose hydraulic system.
• Adsitco Products: Pressure sensors/switches, wiring harnesses, hydraulic system components.

P0846 – Trans Fluid Press Sensor/Switch B CKT Range/Perf

• Description: Transmission Fluid Pressure Sensor/Switch B Circuit out of range/poor performance.
• Possible Causes: Faulty sensor/switch, fluid level/quality issues, hydraulic circuit problems.
• Solutions: Replace sensor/switch, check fluid level/quality, inspect hydraulic circuit.
• Adsitco Products: Pressure sensors/switches, transmission fluids, hydraulic system components.

P0847 – Trans Fluid Press Sensor/Switch B Circuit Low

• Description: Low input from Transmission Fluid Pressure Sensor/Switch B Circuit.
• Possible Causes: Electrical short, faulty sensor/switch, low fluid pressure.
• Solutions: Inspect for shorts, replace sensor/switch, diagnose hydraulic issues.
• Adsitco Products: Pressure sensors/switches, wiring harnesses, hydraulic system components.

P0848 – Trans Fluid Press Sensor/Switch B Circuit High

• Description: High input from Transmission Fluid Pressure Sensor/Switch B Circuit.
• Possible Causes: Electrical open, faulty sensor/switch, high fluid pressure.
• Solutions: Check for opens, replace sensor/switch, address high fluid pressure causes.
• Adsitco Products: Pressure sensors/switches, wiring harnesses, hydraulic system components.

P0849 – Trans Fluid Press Sensor/Switch B CKT Intermittent

• Description: Intermittent faults in Transmission Fluid Pressure Sensor/Switch B Circuit.
• Possible Causes: Loose connections, intermittent sensor/switch faults, wiring harness issues.
• Solutions: Secure connections, replace sensor/switch if intermittent, address wiring.
• Adsitco Products: Pressure sensors/switches, wiring harnesses, connector kits.

Mercedes P1000-P2000 Fault Codes

P1000 – Electronic Gear Selector Module: Defective N15/5

• Description: Fault in electronic gear selector module, specifically N15/5 component.
• Possible Causes: Faulty module, wiring issues, CAN communication problems.
• Solutions: Replace module, inspect/repair wiring, diagnose CAN issues.
• Adsitco Products: Gear selector modules, wiring harnesses.

P1228 – Unknown code on 1997 C 220 CDI

• Description: Undefined code, likely specific to 1997 C 220 CDI, possibly fuel/engine related.
• Possible Causes: Unspecified, could range from fuel system to sensors/ECM.
• Solutions: Comprehensive diagnostics to identify root cause, targeted repairs.
• Adsitco Products: Fuel system components, sensors, ECM units.

P1386 – Knock Control

• Description: Problem with knock control system, affects engine performance/efficiency.
• Possible Causes: Faulty knock sensors, improper fuel octane, engine mechanical issues.
• Solutions: Replace knock sensors, ensure correct fuel octane, inspect engine.
• Adsitco Products: Knock sensors, engine components.

P1570 – Intermittent No-Start Immobiliser Module

• Description: Intermittent issues with immobilizer module, occasional no-start conditions.
• Possible Causes: Faulty immobilizer module, wiring issues, key fob problems.
• Solutions: Replace/reprogram module, repair wiring, check/replace key fob.
• Adsitco Products: Immobilizer modules, wiring harnesses, key fobs.

P1747 – Electronic Gear Selector Module: Defective CAN interaction with instrument cluster A1

• Description: Communication fault between gear selector module and instrument cluster via CAN.
• Possible Causes: Faulty gear selector module, instrument cluster issues, CAN faults.
• Solutions: Replace defective modules, diagnose/repair CAN issues.
• Adsitco Products: Gear selector modules, instrument clusters, wiring harnesses.

P1750 – Electronic Gear Selector Module: Very low control unit supply voltage

• Description: Low supply voltage to gear selector module control unit.
• Possible Causes: Weak battery, poor connections, faulty wiring.
• Solutions: Test/replace battery, check connections/wiring, repair/replace as needed.
• Adsitco Products: Batteries, wiring harnesses, connectors.

P1832 – Electronic Gear Selector Module: SHORT in circuit N15/5 output stage

• Description: Short circuit in output stage of gear selector module.
• Possible Causes: Short circuit within module/wiring, faulty module.
• Solutions: Inspect for shorts, replace module if necessary.
• Adsitco Products: Gear selector modules, wiring harnesses.

P1910 – Electronic Gear Selector Module: Control Unit over voltage

• Description: Over-voltage condition in gear selector module control unit.
• Possible Causes: Faulty voltage regulator, electrical system issues, improper charging.
• Solutions: Check/replace voltage regulator, diagnose/repair electrical system.
• Adsitco Products: Voltage regulators, electrical system components.

P1912 – Electronic Gear Selector Module: Weak touch push button voltage

• Description: Low voltage at touch push button of gear selector module.
• Possible Causes: Faulty button, wiring issues, low voltage supply.
• Solutions: Replace button, inspect/repair wiring, ensure adequate voltage supply.
• Adsitco Products: Gear selector module components, wiring harnesses.

P2000 – NOx Trap Efficiency Below Threshold (Bank 1)
P2001 – NOx Trap Efficiency Below Threshold (Bank 2)
P2003 – Particulate Trap Efficiency Below Threshold (Bank 1)
P2004 – Particulate Trap Efficiency Below Threshold (Bank 2)

• Description: NOx/Particulate trap efficiency below threshold, affects emissions control.
• Possible Causes: Faulty trap/filter, sensor issues, exhaust leaks.
• Solutions: Replace trap/filter, repair leaks, replace sensors.
• Adsitco Products: NOx traps, particulate filters, exhaust components, sensors.

P2031 – Exhaust Gas Temperature Sensor Circuit (Bank 1 Sensor 2)
P2032 – Exhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 2)
P2033 – Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 2)

• Description: Issues with exhaust gas temperature sensor circuit (Bank 1 Sensor 2).
• Possible Causes: Faulty sensor, wiring/connector issues, exhaust system problems.
• Solutions: Replace sensor, inspect/repair wiring/connectors, check exhaust system.
• Adsitco Products: Exhaust gas temperature sensors, wiring harnesses, exhaust components.

P2080 – Exhaust Gas Temperature Sensor Circuit Range/Performance (Bank 1 Sensor 1)
P2081 – Exhaust Gas Temperature Sensor Circuit intermittent (Bank 1 Sensor 1)

• Description: Issues with exhaust gas temperature sensor (Bank 1 Sensor 1), range/performance or intermittent.
• Possible Causes: Faulty sensor, intermittent wiring/connector problems, exhaust system issues.
• Solutions: Replace sensor, repair wiring/connectors, inspect exhaust system.
• Adsitco Products: Exhaust gas temperature sensors, wiring harnesses, exhaust components.

P2100 – Throttle Actuator Control Motor Circuit/Open
P2101 – Throttle Actuator Control Motor Circuit Range/Performance

• Description: Problems with throttle actuator control motor circuit, affects throttle response.
• Possible Causes: Faulty throttle actuator, wiring/connector issues, ECM faults.
• Solutions: Replace throttle actuator, inspect/repair wiring/connectors, diagnose ECM.
• Adsitco Products: Throttle actuators, wiring harnesses, ECM units.

P2208 – Transmission: Speed of Y3/6n2 to Y3/6n3 is excessive

• Description: Excessive speed difference between transmission sensors Y3/6n2 and Y3/6n3.
• Possible Causes: Faulty speed sensors, internal transmission issues, ECM problems.
• Solutions: Replace speed sensors, inspect transmission, diagnose ECM.
• Adsitco Products: Transmission speed sensors, ECM components, transmission parts.

Mercedes Body Fault Codes (B-Codes)

B1000 – HRA Headlamp Range Adjustment: Supply Voltage Too Low (Undervoltage)

• Description: Low supply voltage to headlamp range adjustment control unit.
• Possible Causes: Low battery voltage, faulty wiring, defective control unit.
• Solutions: Check/charge battery, inspect/repair wiring, replace control unit if necessary.
• Adsitco Products: Control units, wiring harnesses.

B1004 – LCP Lower Control Panel: Control Unit Does Not Match Vehicle Type

• Description: Lower control panel control unit incompatible with vehicle type.
• Possible Causes: Incorrect control unit installed.
• Solutions: Verify part number, replace with correct unit.
• Adsitco Products: Control units for lower control panel.

B1056 – Automatic Air Conditioning: Problem in CAN Communication with Control Unit DCM-RL

• Description: CAN communication issue between A/C and DCM-RL control unit.
• Possible Causes: Faulty CAN wiring/connections, defective DCM-RL control unit.
• Solutions: Check CAN wiring/connections, replace DCM-RL control unit if needed.
• Adsitco Products: DCM-RL control units, CAN network wiring.

B1201 – Electric Seat Adjustment Front Left: Hall Sensor Front Height M27m3

• Description: Hall sensor malfunction for front left electric seat height adjustment.
• Possible Causes: Faulty hall sensor, wiring issue.
• Solutions: Replace hall sensor, inspect/repair wiring.
• Adsitco Products: Hall sensors, wiring harnesses for electric seats.

B1213/B1214 – If Seat Memory Installed: Exterior Right Rearview Mirror Voltage Faulty

• Description: Incorrect voltage for exterior right rearview mirror with seat memory.
• Possible Causes: Faulty wiring/connection, defective mirror motor/control module.
• Solutions: Inspect/repair wiring, replace mirror motor/control module.
• Adsitco Products: Rearview mirror motors, control modules.

B1226 – In-Car Temperature Sensor (B10/4)

• Description: Fault in in-car temperature sensor, affecting climate control.
• Possible Causes: Faulty sensor, wiring issue, poor connection.
• Solutions: Replace sensor, inspect/repair wiring/connections.
• Adsitco Products: In-car temperature sensors, wiring harnesses.

B1227 – Outside Temperature Indicator Temp Sensor (014)

• Description: Malfunctioning outside temperature sensor, incorrect temperature display.
• Possible Causes: Defective sensor, damaged wiring.
• Solutions: Replace sensor, inspect/repair wiring.
• Adsitco Products: Outside temperature sensors, wiring harnesses.

B1128/B1229 – Heater Core Temperature (B10/1)

• Description: Anomaly in heater core temperature sensor.
• Possible Causes: Faulty temperature sensor, wiring issues.
• Solutions: Replace sensor, inspect/repair wiring.
• Adsitco Products: Heater core temperature sensors, wiring harnesses.

B1230 – Evaporator Temperature Sensor (B10/6)

• Description: Fault in evaporator temperature sensor, affects A/C efficiency.
• Possible Causes: Defective sensor, wiring problems.
• Solutions: Replace sensor, check/repair wiring.
• Adsitco Products: Evaporator temperature sensors, wiring harnesses.

B1231 – ECT Sensor (B11/4)

• Description: Irregular readings from Engine Coolant Temperature (ECT) sensor.
• Possible Causes: Faulty ECT sensor, damaged wiring/connectors.
• Solutions: Replace sensor, inspect/repair wiring.
• Adsitco Products: ECT sensors, wiring harnesses.

B1232 – Refrigerant Pressure Sensor (B12)

• Description: Incorrect data from refrigerant pressure sensor, affects A/C.
• Possible Causes: Defective sensor, AC system leaks, wiring issues.
• Solutions: Replace sensor, check AC for leaks, repair wiring.
• Adsitco Products: Refrigerant pressure sensors, AC leak repair kits, wiring harnesses.

B1233 – Refrigerant Temperature Sensor (B12/1)

• Description: Anomaly in refrigerant temperature readings, impacts A/C operation.
• Possible Causes: Malfunctioning sensor, wiring faults.
• Solutions: Replace sensor, inspect/repair wiring.
• Adsitco Products: Refrigerant temperature sensors, wiring harnesses.

B1234 – Sun Sensor (B32)

• Description: Sun sensor malfunction, affects climate control adjustment.
• Possible Causes: Defective sensor, wiring issues.
• Solutions: Replace sensor, check/repair wiring.
• Adsitco Products: Sun sensors, wiring harnesses.

B1235 – Emissions Sensor (B31)

• Description: Fault in emissions sensor, affects vehicle emissions.
• Possible Causes: Faulty sensor, wiring/connection issues.
• Solutions: Replace sensor, inspect/repair wiring/connections.
• Adsitco Products: Emissions sensors, wiring harnesses.

B1241 – Refrigerant Fill

• Description: Issue with refrigerant fill level, possible AC leak/undercharge.
• Possible Causes: AC system leak, incorrect refrigerant charge.
• Solutions: Check for leaks, recharge AC system.
• Adsitco Products: AC leak detection kits, refrigerant.

B1246 – PTS Parktronic: Sensor or Cable Fault

• Description: Parktronic system fault, sensor/cable fault, left outer front sensor.
• Possible Causes: Loose sensor connection, faulty sensor/cable.
• Solutions: Check sensor connection, replace sensor/cable.
• Adsitco Products: Parktronic sensors, wiring harnesses.

B1310 – Left/Window Airbag Sensor Defective

• Description: Left/window airbag sensor malfunction.
• Possible Causes: Defective sensor.
• Solutions: Replace sensor.
• Adsitco Products: Airbag sensors.

B1315 – Front Passenger Child Seat Recognition Problem

• Description: Issue with front passenger child seat recognition system.
• Possible Causes: Faulty seat recognition sensor, wiring issues.
• Solutions: Replace sensor, inspect/repair wiring.
• Adsitco Products: Child seat recognition sensors, wiring harnesses.

B1416 – Coolant Circulation Pump (M13)

• Description: Coolant circulation pump not operating correctly.
• Possible Causes: Faulty pump, electrical issues.
• Solutions: Replace pump, inspect/repair electrical connections.
• Adsitco Products: Coolant circulation pumps, electrical repair kits.

B1417 – Duovalve (Y21y1), Left

• Description: Malfunctioning left duovalve, controls coolant flow for climate control.
• Possible Causes: Faulty duovalve, wiring/control issues.
• Solutions: Replace duovalve, inspect/repair wiring.
• Adsitco Products: Duovalves, wiring harnesses.

B1418 – Duovalve (Y21y2), Right

• Description: Malfunctioning right duovalve, controls coolant flow for climate control.
• Possible Causes: Defective duovalve, electrical problems.
• Solutions: Replace duovalve, check/repair electrical issues.
• Adsitco Products: Duovalves, electrical repair components.

B1419 – Electromagnetic Clutch (A9k1)

• Description: Issues with electromagnetic clutch.
• Possible Causes: Faulty clutch, electrical malfunctions.
• Solutions: Replace clutch, inspect/repair electrical system.
• Adsitco Products: Electromagnetic clutches, electrical system components.

B1420 – Idle Speed Increase

• Description: Higher than expected engine idle speed.
• Possible Causes: Malfunctioning idle control valve, vacuum leaks, software issues.
• Solutions: Replace/clean idle control valve, check vacuum leaks, update ECM software.
• Adsitco Products: Idle control valves, diagnostic tools for software updates.

B1421 – Pulse Module (N05)

• Description: Pulse module malfunction.
• Possible Causes: Defective module, wiring faults.
• Solutions: Replace module, inspect/repair wiring.
• Adsitco Products: Pulse modules, wiring harnesses.

B1422 – Series Interface (K1) Connection to Instrument Cluster (A1)

• Description: Problem with series interface connection to instrument cluster.
• Possible Causes: Faulty instrument cluster, damaged wiring/connectors.
• Solutions: Replace/repair instrument cluster, inspect/repair wiring.
• Adsitco Products: Instrument clusters, connector and wiring repair kits.

B1423 – Switchover Valve Block (Y11)

• Description: Malfunctioning switchover valve block.
• Possible Causes: Faulty valve block, vacuum leaks, electrical issues.
• Solutions: Replace valve block, check vacuum leaks, inspect electrical connections.
• Adsitco Products: Switchover valve blocks, vacuum system components.

B1424 – Activated Charcoal Filler Actuator (A32m2) Open/Closed

• Description: Activated charcoal filler actuator stuck open/closed.
• Possible Causes: Faulty actuator, blockage, electrical faults.
• Solutions: Replace actuator, clear blockages, check wiring/connections.
• Adsitco Products: Activated charcoal filler actuators, wiring harnesses.

B1432 – Non-USA DTC

• Description: Diagnostic trouble code specific to non-USA vehicles.
• Possible Causes: Varies by vehicle/region.
• Solutions: Refer to region-specific documentation.
• Adsitco Products: General diagnostic tools.

B1459 – Series Interface (K2) Connection to Instrument Cluster (A1)

• Description: Problem with series interface (K2) connection to instrument cluster.
• Possible Causes: Damaged wiring/connectors, faulty instrument cluster.
• Solutions: Inspect/repair wiring/connectors, replace instrument cluster.
• Adsitco Products: Instrument cluster units, wiring repair kits.

B1462 – Wide Open Throttle (WOT) Position Signal Diesel Engines

• Description: Out-of-range WOT position signal in diesel engines.
• Possible Causes: Faulty throttle position sensor, wiring issues, ECM software update needed.
• Solutions: Replace sensor, inspect/repair wiring, update ECM software.
• Adsitco Products: Throttle position sensors, ECM diagnostic and programming tools.

B1476 – Airbag Malfunction Indicator and Warning Lamp Is Defective

• Description: Defective airbag malfunction indicator lamp (MIL).
• Possible Causes: Faulty MIL, wiring/connection issues.
• Solutions: Replace airbag MIL, inspect/repair wiring/connections.
• Adsitco Products: Airbag malfunction indicator lamps, wiring harnesses.

B1481/B1489 – HRA: Headlamp Range Adjustment Motor Faults

• Description: Headlamp range adjustment motor faults, shorts to ground or open/short to positive.
• Possible Causes: Faulty motor, damaged wiring/connectors.
• Solutions: Replace motor, inspect/repair wiring/connectors.
• Adsitco Products: Headlamp range adjustment motors, wiring repair kits.

B1492 – HRA: Left Headlamp Range Adjustment Motor Short to Positive

• Description: Left headlamp range adjustment motor short to positive.
• Possible Causes: Faulty motor, wiring/connector issues.
• Solutions: Replace motor, inspect/repair wiring.
• Adsitco Products: Headlamp range adjustment motors, wiring harnesses.

B1617/B1618 – License Plate Lamp Defective

• Description: Defective left/right license plate lamp.
• Possible Causes: Burnt-out bulb, faulty wiring/connections.
• Solutions: Replace bulb, inspect/repair wiring/connections.
• Adsitco Products: License plate lamps, wiring repair components.

B1628 – Turn Signal Lamp Defective in Module E2 (Right Front Headlamp Unit)

• Description: Defective turn signal lamp in right front headlamp unit.
• Possible Causes: Faulty lamp, wiring issues, headlamp unit problems.
• Solutions: Replace lamp, inspect headlamp unit/wiring.
• Adsitco Products: Turn signal lamps, headlamp units, wiring harnesses.

B1703 – Intermittent No Start in AAM Immobiliser Module

• Description: Intermittent no-start due to AAM immobilizer module.
• Possible Causes: Faulty AAM module, wiring issues, key recognition problems.
• Solutions: Diagnose/replace AAM module, inspect wiring, ensure key recognition.
• Adsitco Products: AAM immobilizer modules, diagnostic tools.

B1729 – PSE Pneumatic System Doorlock Control Module A37

• Description: Issue with PSE pneumatic system doorlock control module.
• Possible Causes: Faulty module, pneumatic system leaks, electrical issues.
• Solutions: Replace PSE module, check for pneumatic leaks, inspect electrical connections.
• Adsitco Products: PSE pneumatic system modules, leak detection kits, electrical repair kits.

B1736 – Navigation System’s CD Player Issues

• Description: Problems with navigation system CD player.
• Possible Causes: Faulty CD player, scratched/damaged CDs.
• Solutions: Repair/replace CD player, use undamaged CDs.
• Adsitco Products: Navigation system CD players, navigation CDs.

B1768 – Faulty Open Data Flap Limit Switch

• Description: Open data flap limit switch faulty.
• Possible Causes: Faulty switch, mechanical failure.
• Solutions: Replace data flap limit switch.
• Adsitco Products: Data flap limit switches.

B1773 – HRA: Zero Position Programming Issue

• Description: Zero position programming issue for headlamp range adjustment.
• Possible Causes: Programming error, faulty HRA module.
• Solutions: Perform zero position programming, replace HRA module if needed.
• Adsitco Products: HRA modules, programming tools.

B1850 – Electric Seat Adjustment Front Right: CAN Communication Interrupted

• Description: CAN communication interrupted with DCM for front right electric seat.
• Possible Causes: Faulty DCM, wiring/connector issues.
• Solutions: Replace DCM, inspect/repair wiring/connectors.
• Adsitco Products: Door control modules, wiring repair kits.

Mercedes Chassis Fault Codes (C-Codes)

C1010 – Battery Voltage Low

• Description: Vehicle battery voltage below normal range.
• Possible Causes: Weak/failing battery, poor charging system, electrical drains.
• Solutions: Test/replace battery, inspect charging system, check for drains.
• Adsitco Products: Replacement batteries, charging system components.

C1011 – ASR/ETS/ESP Circuit Open or Shorted

• Description: Open/short circuit in ASR/ETS/ESP systems.
• Possible Causes: Faulty wiring/connectors, defective control modules.
• Solutions: Inspect/repair wiring, replace control modules.
• Adsitco Products: Control modules for ASR/ETS/ESP, wiring repair components.

C1012 – Battery Voltage High

• Description: Vehicle battery voltage above normal range.
• Possible Causes: Faulty alternator/voltage regulator, electrical system faults.
• Solutions: Check/replace alternator/regulator, inspect electrical system.
• Adsitco Products: Alternators, voltage regulators.

C1020 – CAN Communication Fault

• Description: Fault in CAN communication system.
• Possible Causes: Faulty ECU, damaged wiring/connectors, CAN bus faults.
• Solutions: Diagnose/repair CAN bus, replace faulty ECU/wiring.
• Adsitco Products: ECUs, wiring harnesses, CAN bus diagnostic tools.

C1021 – CAN Communication With EA/CC/ISC Control Module Interrupted

• Description: CAN communication interrupted with EA/CC/ISC control module.
• Possible Causes: Faulty control module, broken wires/bad connections.
• Solutions: Replace control module, inspect/repair wiring.
• Adsitco Products: EA/CC/ISC control modules, wiring repair kits.

C1024 – CAN Communication With Engine Control Module Interrupted

• Description: CAN communication interrupted with Engine Control Module (ECM).
• Possible Causes: Faulty ECM, damaged wiring.
• Solutions: Replace ECM, inspect/repair wiring.
• Adsitco Products: Engine control modules, wiring harnesses.

C1025 – CAN Communication BAS Communication With ESP Control Unit Faulty

• Description: Faulty CAN communication between BAS and ESP control unit.
• Possible Causes: Defective BAS/ESP control unit, wiring issues.
• Solutions: Replace control units, inspect/repair wiring.
• Adsitco Products: BAS and ESP control units, wiring repair components.

C1100 – Left Front Axle VSS Circuit Fault

• Description: Vehicle Speed Sensor (VSS) circuit fault, left front axle.
• Possible Causes: Faulty VSS, damaged wiring/connectors.
• Solutions: Replace VSS, inspect/repair wiring.
• Adsitco Products: Vehicle speed sensors, wiring harnesses.

C1101 – Right Front Axle VSS Circuit Fault

• Description: VSS circuit fault, right front axle.
• Possible Causes: Defective VSS, wiring faults.
• Solutions: Replace VSS, check/repair wiring.
• Adsitco Products: Vehicle speed sensors, electrical repair kits.

C1102 – ETS/ASR, ABS Left Axle VSS Circuit Fault

• Description: Left axle VSS fault for ETS/ASR and ABS.
• Possible Causes: Damaged sensor, wiring issues.
• Solutions: Replace sensor, inspect/repair wiring.
• Adsitco Products: Speed sensors, wiring harnesses.

C1103 – Right Rear Axle VSS Circuit Fault

• Description: VSS circuit fault, right rear axle.
• Possible Causes: Faulty VSS, damaged wiring/poor connections.
• Solutions: Replace VSS, inspect/repair wiring.
• Adsitco Products: Vehicle speed sensors, wiring harnesses for repairs.

C1121 – AIRmatic: Fault in Component B22/3 (Level Sensor)

• Description: AIRmatic level sensor fault (B22/3).
• Possible Causes: Faulty level sensor, wiring issues, air suspension problems.
• Solutions: Replace level sensor, check wiring/air suspension.
• Adsitco Products: AIRmatic level sensors, air suspension components, wiring repair kits.

C1122 – AIRmatic: Fault in Component B22/4 (Level Sensor)

• Description: AIRmatic level sensor fault (B22/4).
• Possible Causes: Defective level sensor, electrical connection issues, air system faults.
• Solutions: Replace sensor, inspect electrical system, check air suspension.
• Adsitco Products: Level sensors for AIRmatic systems, air suspension repair parts.

C1123 – AIRmatic: Fault in Component B22/6 (Level Sensor)

• Description: AIRmatic level sensor fault (B22/6).
• Possible Causes: Damaged sensor, wiring faults, air suspension issues.
• Solutions: Replace level sensor, repair wiring, address air suspension.
• Adsitco Products: Suspension level sensors, air suspension kits, wiring harnesses.

C1132/C1133/C1135 – AIRmatic: Fault in Components B22/8, B22/9, and Repeat of B22/3 (Level Sensors)

• Description: AIRmatic level sensor faults (B22/8, B22/9, and repeat of B22/3).
• Possible Causes: Sensor failure, wiring damage, air suspension system defects.
• Solutions: Replace indicated level sensors, ensure wiring integrity, check air suspension.
• Adsitco Products: AIRmatic level sensors, air suspension solutions, electrical repair components.

C1140 – BAS Light, Play in Steering Column Causes Steering Angle Sensor to Lose Memory

• Description: BAS issue, steering column play causes steering angle sensor memory loss.
• Possible Causes: Loose steering column, faulty steering angle sensor.
• Solutions: Secure steering column, replace steering angle sensor.
• Adsitco Products: Steering angle sensors, steering column repair kits.

C1142 – ABS Lateral Acceleration Sensor Open/Shorted

• Description: ABS lateral acceleration sensor open/shorted.
• Possible Causes: Faulty sensor, wiring/connector issues.
• Solutions: Replace sensor, inspect/repair wiring.
• Adsitco Products: ABS sensors, wiring repair kits.

C1144 – AIRmatic: Fault in Component B7 (Pressure Sensor)

• Description: AIRmatic pressure sensor fault (B7).
• Possible Causes: Defective pressure sensor, wiring problems, system leaks.
• Solutions: Replace pressure sensor, check wiring/air leaks.
• Adsitco Products: AIRmatic pressure sensors, leak detection tools, repair components.

C1200 – Stop Light Switch Open/Shorted/Implausible

• Description: Stop light switch circuit open/shorted/implausible.
• Possible Causes: Faulty stop light switch, wiring issues.
• Solutions: Replace stop light switch, inspect/repair wiring.
• Adsitco Products: Stop light switches, electrical wiring kits.

C1300/C1303 – Left/Right Front Axle Solenoid Valve (Hold) Open/Shorted

• Description: Solenoid valve faults for left/right front axle hold.
• Possible Causes: Defective solenoid valves, wiring/connection faults.
• Solutions: Replace solenoid valves, ensure wiring integrity.
• Adsitco Products: Solenoid valves for suspension, wiring repair kits.

C1311 – Switchover Solenoid Valve (Release) Open/Shorted

• Description: Switchover solenoid valve fault for suspension release.
• Possible Causes: Malfunctioning solenoid valve, electrical issues.
• Solutions: Replace solenoid valve, check electrical connections/wiring.
• Adsitco Products: Suspension solenoid valves, electrical components.

C1312 – Master Cylinder Switchover Valve

• Description: Fault in master cylinder switchover valve.
• Possible Causes: Faulty valve, hydraulic system issues.
• Solutions: Replace switchover valve, inspect brake hydraulic system.
• Adsitco Products: Master cylinder switchover valves, brake system repair kits.

C1401 – High Pressure Return Pump Circuit Open/Shorted; Will Not Shut Off

• Description: High-pressure return pump circuit open/shorted, pump won’t shut off.
• Possible Causes: Faulty pump, electrical circuit issues.
• Solutions: Replace pump, repair electrical faults.
• Adsitco Products: High-pressure pumps, electrical repair components.

C1501 – SPS P-Valve

• Description: Issue with SPS P-Valve.
• Possible Causes: Faulty valve, control system problems.
• Solutions: Replace SPS P-Valve, diagnose control system.
• Adsitco Products: SPS valves, diagnostic tools for suspension systems.

C1504 – BAS Light, Repeat of Earlier Code Regarding Steering Angle Sensor

• Description: Repeat of C1140, BAS/steering angle sensor issue.
• Possible Causes: See C1140.
• Solutions: See C1140.
• Adsitco Products: Steering system components, BAS system parts.

C1512 – Brakes Overheated

• Description: Brakes overheated.
• Possible Causes: Excessive braking, faulty brake components.
• Solutions: Check/replace brake components, ensure proper operation.
• Adsitco Products: Brake pads, rotors, cooling components.

C1600 – Temperature After Engine Is Turned Off

• Description: High temperature detected after engine shut off.
• Possible Causes: Cooling system malfunction, sensor fault.
• Solutions: Inspect/repair cooling system, replace sensors.
• Adsitco Products: Cooling system parts, temperature sensors.

Mercedes Network Communication Fault Codes (U-Codes)

U0002 – High Speed CAN Communication Bus Performance

• Description: Performance issues in high-speed CAN bus.
• Possible Causes: Faulty wiring/connectors, defective CAN bus controller.
• Solutions: Inspect/repair CAN bus wiring, replace controller.
• Adsitco Products: CAN bus controllers, wiring repair kits.

U0003 – High Speed CAN Communication Bus (+) Open

• Description: Open circuit in high-speed CAN bus (+) line.
• Possible Causes: Broken wire, loose connector.
• Solutions: Locate/repair open circuit, secure connections.
• Adsitco Products: Wiring harnesses, connector repair kits.

U0004 – High Speed CAN Communication Bus (+) Low

• Description: Low signal in high-speed CAN bus (+) line.
• Possible Causes: Short circuit to ground, faulty network component.
• Solutions: Identify/repair short circuit, replace components.
• Adsitco Products: Electrical diagnostic tools, replacement network components.

U0005 – High Speed CAN Communication Bus (+) High

• Description: High signal in high-speed CAN bus (+) line.
• Possible Causes: Short circuit to voltage, malfunctioning component.
• Solutions: Repair short circuit, replace components.
• Adsitco Products: CAN bus diagnostic equipment, high-quality electrical components.

U0006 – High Speed CAN Communication Bus (-) Open

• Description: Open circuit in high-speed CAN bus (-) line.
• Possible Causes: Disconnected wire, faulty connector.
• Solutions: Repair open circuit, ensure connectors seated properly.
• Adsitco Products: Electrical wiring and connector repair kits.

U0007 – High Speed CAN Communication Bus (-) Low

• Description: Low signal in high-speed CAN bus (-) line.
• Possible Causes: Electrical short to ground, component failure.
• Solutions: Locate/repair short, replace failed components.
• Adsitco Products: Short circuit detection tools, replacement electrical components.

U0008 – High Speed CAN Communication Bus (-) High

• Description: High signal in high-speed CAN bus (-) line.
• Possible Causes: Short to power in network, faulty module.
• Solutions: Repair short to power, replace faulty modules.
• Adsitco Products: Diagnostic scanners, electronic control modules.

U0009 – High Speed CAN Communication Bus (-) Shorted to Bus (+)

• Description: High-speed CAN bus (-) and (+) lines shorted.
• Possible Causes: Wiring fault, connector issue.
• Solutions: Identify/repair short, check connectors for damage.
• Adsitco Products: Wiring repair kits, connector replacement parts.

U0010 – Medium Speed CAN Communication Bus

• Description: General fault in medium-speed CAN bus.
• Possible Causes: Network disruption, faulty bus controller/module.
• Solutions: Diagnose/repair disruption, replace controller/modules.
• Adsitco Products: Network communication diagnostic tools, CAN bus controllers.

U0011 – Medium Speed CAN Communication Bus Performance

• Description: Performance issues in medium-speed CAN bus.
• Possible Causes: Wiring/connectivity issues, defective components.
• Solutions: Check/repair wiring, replace defective components.
• Adsitco Products: Network diagnostic equipment, quality network components.

U0012 – Medium Speed CAN Communication Bus (+) Open

• Description: Open circuit in medium-speed CAN bus (+) line.
• Possible Causes: Disconnected/broken wire, corrosion at connectors.
• Solutions: Locate/repair open circuit, clean/replace corroded connectors.
• Adsitco Products: Wiring harness repair kits, electrical contact cleaner, replacement connectors.

U0013 – Medium Speed CAN Communication Bus (+) Low

• Description: Low voltage in medium-speed CAN bus (+) line.
• Possible Causes: Short circuit, faulty component causing voltage drop.
• Solutions: Identify/repair short circuit, replace components.
• Adsitco Products: Circuit testers, electrical components for CAN bus systems.

U0014 – Medium Speed CAN Communication Bus (+) High

• Description: High voltage in medium-speed CAN bus (+) line.
• Possible Causes: Wiring fault, malfunctioning control unit.
• Solutions: Repair wiring fault, replace control units.
• Adsitco Products: High-quality wiring/control units for Mercedes vehicles.

U0015 – Medium Speed CAN Communication Bus (-) Open

• Description: Open circuit in medium-speed CAN bus (-) line.
• Possible Causes: Broken wire, poor connector fitment.
• Solutions: Repair wire break, ensure connectors properly fitted.
• Adsitco Products: Comprehensive wiring repair solutions, connector kits.

U0016 – Medium Speed CAN Communication Bus (-) Low

• Description: Low signal in medium-speed CAN bus (-) line.
• Possible Causes: Electrical interference, short to ground in wiring.
• Solutions: Locate interference/short, shield cables if needed.
• Adsitco Products: Shielded wiring, ground fault detection tools.

U0017 – Medium Speed CAN Communication Bus (-) High

• Description: High signal in medium-speed CAN bus (-) line.
• Possible Causes: Short to voltage, defective module affecting bus voltage.
• Solutions: Find/fix short to voltage, replace defective modules.
• Adsitco Products: Voltage testers, CAN bus compatible modules.

U0018 – Medium Speed CAN Communication Bus (-) Shorted to Bus (+)

• Description: Medium-speed CAN bus (-) and (+) lines shorted.
• Possible Causes: Wiring damage, connector pin damage.
• Solutions: Inspect wiring/connectors, repair/replace.
• Adsitco Products: Wiring/connector repair kits, diagnostic tools for network analysis.

U0019 – Low Speed CAN Communication Bus

• Description: General fault in low-speed CAN bus.
• Possible Causes: Faulty bus controller, damaged wiring.
• Solutions: Replace bus controllers, repair/replace wiring.
• Adsitco Products: CAN bus controllers, automotive wiring kits.

U0020 – Low Speed CAN Communication Bus Performance

• Description: Performance issues in low-speed CAN bus.
• Possible Causes: Congested network, poor quality wiring.
• Solutions: Check network congestion, upgrade wiring quality.
• Adsitco Products: High-quality automotive wiring, CAN bus diagnostic tools.

U0021 – Low Speed CAN Communication Bus (+) Open

• Description: Open circuit in low-speed CAN bus (+) line.
• Possible Causes: Severed wire, disconnected connector.
• Solutions: Locate/repair open circuit, secure connectors.
• Adsitco Products: Electrical repair kits, secure-fit connectors.

U0022 – Low Speed CAN Communication Bus (+) Low

• Description: Low signal in low-speed CAN bus (+) line.
• Possible Causes: Short circuit in wiring, faulty component pulling line low.
• Solutions: Identify/fix short circuit, replace components.
• Adsitco Products: Short circuit locators, replacement network components.

U0023 – Low Speed CAN Communication Bus (+) High

• Description: High signal in low-speed CAN bus (+) line.
• Possible Causes: Wiring short to power, malfunctioning module.
• Solutions: Locate/repair short to power, replace modules.
• Adsitco Products: Diagnostic tools for electrical shorts, high-quality control modules.

U0024 – Low Speed CAN Communication Bus (-) Open

• Description: Open circuit in low-speed CAN bus (-) line.
• Possible Causes: Broken/disconnected wire, poor terminal connection.
• Solutions: Repair/reconnect wire, secure/replace terminal connections.
• Adsitco Products: Wiring repair kits, terminal connectors.

U0025 – Low Speed CAN Communication Bus (-) Low

• Description: Low signal in low-speed CAN bus (-) line.
• Possible Causes: Short circuit, defective component.
• Solutions: Identify/fix short circuit, replace components.
• Adsitco Products: Electronic component testers, replacement components.

U0026 – Low Speed CAN Communication Bus (-) High

• Description: High signal in low-speed CAN bus (-) line.
• Possible Causes: Short to voltage, electrical malfunction.
• Solutions: Repair short to voltage, address malfunctions.
• Adsitco Products: Voltage detection tools, comprehensive electrical repair kits.

U0027 – Low Speed CAN Communication Bus (-) Shorted to Bus (+)

• Description: Low-speed CAN bus (-) and (+) lines shorted.
• Possible Causes: Wiring damage, connector faults.
• Solutions: Inspect/repair wiring/connectors.
• Adsitco Products: High-quality wiring/connector repair components.

U0028 to U0072 – Vehicle Communication Bus A to E and Conditions

• Description: Various conditions (open, low, high, shorted) affecting vehicle communication buses A to E.
• Possible Causes: Varied by code, generally wiring faults, shorts, opens, bus performance issues.
• Solutions: Diagnose specific bus, repair/replace wiring, resolve shorts/opens, replace defective modules.
• Adsitco Products: Diagnostic tools for communication systems, wiring repair kits, OEM-quality modules.

U0073 – Control Module Communications Bus Off

• Description: Control module communication bus offline.
• Possible Causes: Faulty control module, major network disruption.
• Solutions: Diagnose/replace faulty modules, repair network disruptions.
• Adsitco Products: Control modules, network diagnostics and repair tools.

U0100 to U0105 – Lost Communication with Critical Modules

• Description: Lost communication with ECM/PCM, TCM, Transfer Case, Gear Shift, Cruise Control, Fuel Injector modules.
• Possible Causes: Faulty modules, CAN communication disruption, wiring issues.
• Solutions: Check CAN faults, replace modules, repair wiring.
• Adsitco Products: ECM/PCM, TCM, other control modules, CAN communication repair tools, wiring harnesses.

U0192 to U0198 – Lost Communication with Entertainment/Communication Modules

• Description: Communication issues with TV, Telephone, Telematic Control Modules.
• Possible Causes: Disconnected modules, CAN bus issues, wiring faults.
• Solutions: Reconnect/replace modules, diagnose CAN bus, repair wiring.
• Adsitco Products: Entertainment/communication modules, diagnostic tools, wiring repair components.

U0222, U0235 – Lost Communication with Door Window Motor A, Cruise Control Front Distance Range Sensor

• Description: Communication problems with door window motor, cruise control sensor.
• Possible Causes: Faulty components, wiring/CAN bus issues.
• Solutions: Replace components, diagnose/repair CAN bus/wiring.
• Adsitco Products: Door window motors, cruise control sensors, CAN bus diagnostics.

U0301 to U0327 – Software Incompatibility with Control Modules

• Description: Software incompatibility with ECM/PCM, TCM, Transfer Case, Ride Level, Immobilizer, Security modules.
• Possible Causes: Outdated software, incorrect module programming.
• Solutions: Update module software, reprogram modules.
• Adsitco Products: Module programming tools, software update services.

U0038 – Vehicle Communication Bus B Performance

• Description: Performance fault on Vehicle Communication Bus B.
• Possible Causes: Network congestion, damaged wiring/connectors, faulty modules on Bus B.
• Solutions: Diagnose network congestion, repair/replace wiring/connectors, replace faulty modules.
• Adsitco Products: Network diagnostic scanners, wiring/connector repair kits, OEM-standard modules.

Advanced Troubleshooting for Mercedes OBD-II Codes

When faced with a dashboard illuminated with warning lights, an OBD-II reader becomes an essential tool. These devices provide real-time data and specific trouble codes, like those listed above, which are critical for diagnosing your Mercedes-Benz. However, to effectively use these tools, some expertise is beneficial. Always ensure your OBD-II reader is compatible with Mercedes-Benz vehicles and is updated with the latest software to accurately interpret the codes.

While OBD-II readers are powerful, some diagnostic situations require professional expertise and specialized equipment. In complex cases, professional diagnostics are invaluable. They ensure precise diagnosis and can save time and money by accurately pinpointing the issue without guesswork.

Adsitco: Your Partner in Mercedes-Benz Maintenance

At Adsitco, we understand the complexities of maintaining your Mercedes-Benz. Our extensive product range is specifically designed for Mercedes-Benz vehicles, ensuring you have access to the correct parts for any maintenance or repair indicated by your mercedes obd2 codes.

Whether you are addressing a sensor issue indicated by a B1234 code or dealing with an airbag warning lamp issue from a B1476 code, Adsitco has the specific parts you need. Our customers frequently share success stories of resolving air conditioning sensor issues with our direct-fit replacements and restoring vehicle performance with our high-quality electrical components. These testimonials highlight how Adsitco parts offer solutions for specific problems, ensuring reliability and peace of mind.

Conclusion: Leveraging Mercedes OBD2 Codes for Optimal Vehicle Health

Understanding and utilizing mercedes obd2 codes is vital for timely and efficient Mercedes-Benz maintenance. These codes not only alert you to current problems but also aid in preventing future issues through early detection. With Adsitco’s comprehensive range of Mercedes-Benz parts and accessories, addressing these codes becomes straightforward, ensuring your vehicle continues to deliver the luxury and performance you expect.

We encourage you to explore our extensive product range tailored for your Mercedes-Benz needs. Whether you are undertaking a DIY repair or preparing for professional service, Adsitco is here to support you every step of the way.

Additional Resources for Mercedes-Benz Diagnostics

For further information on Mercedes-Benz diagnostics and maintenance, explore our Manuals category. Here, you will find both paper and digital copies of owner’s manuals, engine service manuals, and more to deepen your understanding of your vehicle’s inner workings. Trust Adsitco for all your Mercedes-Benz parts needs and experience the difference that quality and expertise make in vehicle maintenance.