OBD2 Pinout for Nissan Vehicles: Your Comprehensive Guide

Understanding the OBD2 pinout for your Nissan vehicle is crucial for effective diagnostics and maintenance. This guide provides a detailed look at the Nissan OBD2 connector, its pin assignments, compatible models, and Nissan-specific diagnostic trouble codes (DTCs). Whether you are a seasoned mechanic or a car owner keen on understanding your vehicle better, this information will empower you to utilize OBD2 tools effectively on your Nissan.

Decoding the Nissan OBD2 Pinout

The OBD2 (On-Board Diagnostics II) connector is a standardized interface found in most modern vehicles, including Nissan models. It allows diagnostic tools to communicate with the vehicle’s computer system, retrieving valuable data for troubleshooting and performance monitoring. The OBD2 connector typically has 16 pins, each assigned a specific function. Here’s a breakdown of the standard OBD2 pinout, highlighting those particularly relevant to Nissan vehicles:

This table, detailing the OBD2 connector pinout, is essential for anyone working with Nissan vehicle diagnostics. Pins 4 and 5 provide ground connections, while pin 16 supplies battery power, crucial for powering the diagnostic tool. Pins 6 and 14 are for the CAN (Controller Area Network) bus, which is the communication protocol used in many newer Nissan vehicles. For older models, pins 2 and 10 (J1850 Bus) or pins 7 and 15 (K-Line and L-Line) might be used for communication. Notably, pins 1, 8, 9, and 11 are manufacturer discretionary and can be Nissan-specific, potentially used for systems like ABS or other proprietary functions.

Nissan OBD-2 Compatibility Across Models

Nissan vehicles adopted OBD2 compliance broadly starting from the mid-1990s, with the protocol and specific implementation varying by model and year. Below is a compatibility list that outlines the OBD2 protocols used in various Nissan models. Please note that this list is not exhaustive but covers a wide range of popular Nissan vehicles:

Nissan OBD2 Compatibility List Table: A detailed table outlining OBD2 protocol compatibility for various Nissan models and years.

It’s important to note that while this list provides a good overview, it may not be 100% complete. As a general guideline, Nissan models manufactured between 1996 and 2004 predominantly used the ISO 9141 protocol. Around 2005 and 2007, some models transitioned to TBD (To Be Determined) protocols, and subsequently, CAN (Controller Area Network) became the standard for models manufactured from 2008 onwards. Always verify your vehicle’s specific OBD2 protocol for accurate diagnostics.

Nissan Specific OBD-2 Trouble Codes

OBD2 systems use standardized diagnostic trouble codes (DTCs). However, manufacturers like Nissan also have their own set of enhanced or manufacturer-specific codes, often starting with “P1” followed by four digits. These codes can provide more detailed information about issues within Nissan vehicles. Here is a list of some Nissan-specific OBD2 codes:

• P1105: MAP/BARO Pressure Switch Solenoid Valve
• P1110: Intake Valve Timing Control Solenoid
• P1120: Secondary Throttle Position Sensor Circuit Fault – Read Our Article On Automotive Circuit Testing For Help With This Nissan Check Engine Light Code
• P1125: Tandem Throttle Position Sensor Circuit Fault – Read Our Article On Automotive Circuit Testing For Help With This Nissan Check Engine Light Code
• P1126: Thermostat Function
• P1130: Swirl Control Valve Control Solenoid Valve
• P1135: Intake Valve Timing Control Circuit (Bank 2) – Read Our Article On Automotive Circuit Testing For Help With This Nissan Check Engine Light Code
• P1140: Intake Valve Timing Control Position Sensor (Bank 1)
• P1145: Intake Valve Timing Control Position Sensor (Bank 2)
• P1148: Closed Loop Control (Bank 1)
• P1165: Swirl Control Valve Control Vacuum Switch
• P1168: Closed Loop Control (Bank 2)
• P1210: Traction Control System Signal Fault
• P1211: ABS/TCS Control Unit
• P1212: ABS/TCS Communication Line
• P1217: Engine Over Temperature (Overheat)
• P1220: Fuel Pump Control Signal Fault
• P1320: Ignition Signal
• P1335: Crankshaft Position Sensor (REF)
• P1336: Crankshaft Position Sensor (CKPS)
• P1400: EGRC Solenoid Valve
• P1401: EGR Temperature Sensor
• P1402: EGR System – Read Our Article on EGR Valve Codes For Help With This Nissan Check Engine Light Code
• P1440: EVAP Control System Small Leak
• P1441: Vacuum Cut Valve Bypass Valve
• P1443: EVAP Canister Control Vacuum Switch Circuit Fault – Read Our Article On Automotive Circuit Testing For Help With This Nissan Check Engine Light Code
• P1444: Canister Purge Volume Control Solenoid Valve
• P1445: EVAP Canister Purge Volume Control Valve
• P1446: EVAP Canister Vent Control Valve (Closed)
• P1447: EVAP Control System Purge Flow Monitoring
• P1448: EVAP Canister Vent Control Valve (Open) – Read Our Article On Automotive Circuit Testing For Help With This Nissan Check Engine Light Code
• P1464: Fuel Level Sensor Circuit (Ground Signal) – Read Our Article On Automotive Circuit Testing For Help With This Nissan Check Engine Light Code
• P1490: Vacuum Cut Valve Bypass Valve (Circuit) – Read Our Article On Automotive Circuit Testing For Help With This Nissan Check Engine Light Code
• P1491: Vacuum Cut Valve Bypass Valve
• P1492: EVAP Canister Purge Control/Solenoid Valve (Circuit) – Read Our Article On Automotive Circuit Testing For Help With This Nissan Check Engine Light Code
• P1493: EVAP Canister Purge Control Valve/Solenoid Valve
• P1550: TCC Solenoid Valve
• P1605: A/T Diagnostic Communication Line
• P1701: Fuel Trim
• P1705: Throttle Position Sensor Circuit A/T – Read Our Article On Automotive Circuit Testing For Help With This Nissan Check Engine Light Code
• P1706: Park/Neutral Position (PNP) Switch
• P1760: Overrun Clutch Solenoid Valve (Circuit) – Read Our Article On Automotive Circuit Testing For Help With This Nissan Check Engine Light Code

Nissan Specific OBD2 Trouble Codes List: A comprehensive list of Nissan proprietary OBD2 error codes, useful for diagnosing specific Nissan vehicle issues.

When diagnosing a Nissan, encountering one of these codes indicates a system-specific problem. For more in-depth troubleshooting, especially for circuit-related faults (as indicated in some code descriptions), refer to resources on automotive circuit testing. Understanding these Nissan-specific codes, alongside the general OBD2 standards, will significantly enhance your diagnostic capabilities for Nissan vehicles.

Conclusion

This guide has provided a comprehensive overview of the OBD2 pinout for Nissan vehicles, their model compatibility, and Nissan-specific diagnostic trouble codes. By understanding the OBD2 connector pin assignments and the communication protocols used in different Nissan models, you are better equipped to perform accurate diagnostics and maintenance. Always remember to consult your vehicle’s service manual for the most precise information and to ensure compatibility with your diagnostic tools. With this knowledge, you can confidently approach Nissan vehicle diagnostics, saving time and ensuring effective repairs.