Malfunction Indicator Lamp: Testing and Inspection

- Switch ON ignition:
+ Malfunction Indicator Lamp (MIL) must light up and stay lit until the engine has started
+ Glow plug indicator light can also light up during the pre-glow period when the engine is cold

If the MIL lamp does not light-up with ignition switched ON:
- Check MIL lamp wiring as follows:





If MIL lamp lights-up with ignition switched ON, continue check as follows:
- Start engine and let idle:
+ MIL lamp must go out after a few seconds

If MIL lamp does not go out:
- Check DTC memory. Testing and Inspection




If no malfunction stored, continue check