Many car owners and DIY mechanics are turning to aftermarket OBD2 connectors for various diagnostic and programming tasks. One common question that arises, particularly within online automotive communities, is whether the Dorman Obd2 Connector can effectively program key fobs. Based on user experiences and technical understanding, the answer is generally yes, the Dorman OBD2 connector should be capable of programming fobs, provided you follow the correct procedures and have the necessary software or app compatibility.
However, a crucial aspect to consider when performing any programming or diagnostic work that requires the ignition to be in the “ON” position for an extended period is battery management. Leaving your car in the “ON” position, even without the engine running, draws significant power and can lead to battery drain. This is especially true if you have accessories like headlights, radio, or climate control activated. One user recounted an experience where a seemingly short programming session resulted in a dead battery, highlighting a potential pitfall for those unfamiliar with the power demands of OBD2 procedures.
To prevent such situations, it is highly recommended to connect your vehicle to a battery charger or maintainer while using an OBD2 connector for programming or extended diagnostics. This ensures a stable power supply and prevents unexpected battery drain that could interrupt the process or leave you stranded with a non-starting vehicle. Think of it as providing a power lifeline to your car during these operations.
If you do experience battery issues after using your Dorman OBD2 connector, or even suspect a potential problem, a systematic approach to diagnosis is essential. Start by checking the battery voltage directly at the battery posts, not just the terminals. Then, measure the voltage again at the terminals themselves. Ideally, these readings should be identical whether the car is off or while it is cranking. A noticeable voltage difference between the posts and terminals, particularly during cranking, indicates a connection problem. This could be due to corrosion, loose terminals, or wiring issues that need to be addressed to ensure proper current flow.
A healthy car battery will naturally show a voltage drop when cranking the engine. This is normal. However, if the voltage drops excessively or if you notice a significant discrepancy between post and terminal voltage readings during cranking, it points to a potential issue within the battery or its connections.
Furthermore, consider the overall health and capacity of your car battery. A battery in good condition should be able to sustain the vehicle in the “ON” position (accessories off) for a reasonable amount of time, typically around 30 minutes, without excessive drain. If your battery struggles to maintain power even for a short duration under these conditions, it may be nearing the end of its lifespan or may not have sufficient cranking amps for your vehicle’s requirements in the first place. Regular battery testing, either with a multimeter or through professional battery diagnostic services, can help assess its condition and prevent unexpected failures.
In conclusion, the Dorman OBD2 connector should function as expected for FOB programming and other compatible tasks. However, responsible and informed usage requires attention to battery management. Employing a battery charger during procedures and understanding basic battery health checks can prevent frustrating situations and ensure a smooth experience with your OBD2 tools.
