Volkswagen Jetta engine light on with low fuel performance and diagnostic code P068A for ECM/PCM power relay issue on Volkswagen Jetta

Some Volkswagen Jetta owners report experiencing issues related to the engine light being on, specifically with low fuel performance and the diagnostic trouble code P068A, which indicates a problem with the ECM/PCM power relay. This code signifies that the power relay is de-energizing too early, resulting in a failure to supply power to critical modules responsible for engine performance, emissions control, and transmission operation. When this relay malfunctions, owners may notice significant drops in fuel efficiency. To resolve this issue, it is recommended to use an OBD-II scanner to diagnose the P068A code and inspect the power relay for any damage or wear. If the relay is faulty, it should be replaced, and any wiring or connector issues in the power relay circuit should be addressed to ensure proper vehicle functionality. Prompt attention to the ECM/PCM power relay issue is crucial for restoring optimal performance and fuel efficiency.