Malfunction Indicator Lamp (MIL)

Malfunction Indicator Lamp (MIL), -K83-

If the Motronic Engine Control Module (ECM) -J220- detects a malfunction this is indicated by switching the Malfunction Indicator Light (MIL) on.







Location of Malfunction Indicator Light (MIL)

NOTE:
The Malfunction Indicator Light (MIL) can switch on in the continuous or flashing mode. Always check DTC memory. Reading Diagnostic Trouble Codes
- Flashing mode: There is a malfunction present which can damage the Three Way Catalytic Converter (TWC) when continuing to drive at this power output. If this occurs, continue driving only at reduced output.
- Continuous mode: There is a malfunction present which causes the emissions to deteriorate. check engine or transmission control module in this case.
- Check the DTC memory if the customer has a complaint or there is a driveability problem and the Malfunction Indicator Light (MIL) does not light up, this is because Diagnostic Trouble Codes (DTCs) can be stored which will not switch the Malfunction Indicator Light (MIL) on immediately.

Functional check:
- Switch on ignition:
The Malfunction Indicator Light (MIL) must lightup.

If the Malfunction Indicator Light (MIL) does not light-up with ignition switched on:
- Check instrument cluster and Electronic Power Control (EPC) Warning Light -K132-:

If the Malfunction Indicator Light (MIL) lights-up with ignition switched on:
- Start engine and run at idle:
The Malfunction Indicator Light (MIL) must go out after several seconds.

If the Malfunction Indicator Light (MIL) does not go out:
- Check DTC memory, repair Diagnostic Trouble Codes (DTCs) if necessary and then erase DTC memory Reading Diagnostic Trouble Codes , DTC memory, checking and erasing.
- Read off readiness code. If the DTC memory has been erased or the Motronic Engine Control Module (ECM) -J220- was disconnected from battery (B+) positive, the readiness code must be generated again. Monitors, Trips, Drive Cycles and Readiness Codes