What does it mean that e pc appears on the dashboard of Volkswagen Jetta?

EPC is the fault light of automobile electronic throttle system.

EPC is the fault light of automobile electronic throttle system. The EPC light is mainly caused by the dirty throttle body, which needs to be cleaned and then matched. After the engine control unit detects the leakage of the air intake system, it will also light the EPC warning light.

The meaning of EPC light is on

The EPC indicator light is always on, indicating that the engine and electronic system are out of order. If the light is always on or flashing after ignition or during driving, it means that the management system has detected the fault of the engine or electronic system. Please contact the service station immediately.

Air intake system troubleshooting, fuel selection reaching the standard, throttle body cleaning, etc. Remove carbon deposits from related parts and clean them. Rewriting ECU related data can not be eliminated after solving other faults.

The possibility caused by other faults is not ruled out, and the test results of the real vehicle shall prevail before maintenance. Of course, if the engine is turned off due to improper operation, this indicator light will also light up, telling you that it will go out after re-ignition, indicating that everything is normal. Need to clean the throttle.