EPC Warning Lamp Functional Check

Electronic Power Control (EPC) Warning Lamp -K132-, Checking

Functional Check On Warning Lamp

- Switch ignition on.
- The engine control module switches on the EPC lamp.
- Start engine.
- Shortly after starting the engine the EPC warning lamp goes out if no DTC in relation to the electronic throttle is stored in the DTC memory.

NOTE: The switch-on signal for the malfunction lamp is transferred via CAN bus to the instrument cluster by the engine control module. Check the data exchange between engine control module and other CAN-control modules. Testing and Inspection