EPC Warning Lamp Significance

Electronic Power Control (EPC) Warning Lamp In Instrument Cluster, Significance

"EPC" is the abbreviation for Electronic Power Control.







Installation location of EPC warning lamp.

If malfunctions are recognized in Electronic Power Control (EPC) when the engine is running, the engine control module will switch on the EPC lamp (these malfunctions are marked in the DTC table). Simultaneously an entry is made in the engine control module DTC memory.

Functional check:
- Switch ignition on: the EPC warning lamp must light-up.

If the EPC warning lamp does not light-up with ignition switched on:
- Check combi-instrument and EPC warning lamp as follows:

If the EPC warning lamp lights-up with ignition switched on, continue check as follows:
- Start engine and run at idling speed: EPC warning lamp must go out after a few seconds.

If the EPC warning lamp does not go out:
- Check DTC Memory, if necessary, repair any malfunctions and then Erase DTC Memory.
- Read readiness code. If DTC memory has been erased or engine control module was disconnected from permanent positive, readiness code must be generated again.
Monitors, Trips, Drive Cycles and Readiness Codes
Monitors, Trips, Drive Cycles and Readiness Codes