Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Significance of Electronic Power Control (EPC) warning lamp
Location of EPC warning lamp
When the ignition is switched on the engine control module checks all components which are important for the correct functioning of the electronic power control.
If malfunctions are detected in the electronic power control system when the engine is running the engine control module will switch on the EPC lamp. These malfunctions are identified accordingly in the Diagnostic Trouble Code (DTC) table. Simultaneously an entry is made in the engine control module DTC memory.
- Check function of EPC warning lamp: → 01 ON BOARD DIAGNOSTIC (OBD)
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.