3360289 - K100 MIL WARNING LIGHT DOES NOT WORK

With key on, the MIL warning light does not come on;
The MIL warning light is turned on via a direct earth control supplied by the engine control node. When everything is working normall, the MIL warning light should come on with the ignition on and go out once the engine has started;
Results of the tests
1CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation

Connect the diagnostic equipment to the diagnostic socket and check the engine control node for:

  • MIL warning light operation via active diagnosis.
Continue to Step 4The warning light does not come onContinue to Step 2
2CHECKING WARNING LIGHT OPERATIONAll OKProblems metOperation
Check that the MIL warning light is working See Test   5560BT  Check MIL warning light operation Continue to Step 4The warning light does not come onContinue to Step 3
3CHECKING ELECTRICAL EQUIPMENTAll OKProblems metOperation
Check the continuity and the insulation of the wires between the engine control node and the instrument panel node. See   E4010  INSTRUMENT PANEL Replace instrument panelEnd of diagnosisCable brokenRenew the electrical connections See   E4010  INSTRUMENT PANEL
4CHECKING CORRECT OPERATIONAll OKProblems metOperation
1.2 16v 1.6 16v 1.8 16v 2.4 20vCheck that the fault is no longer presentFault persistsReplace the engine management control unit Op.   1056B82  Search for the fault starting from another symptom'
1.9 JTD 8vCheck that the fault is no longer presentFault persistsReplace the engine management control unit Op.   1060G80  Search for the fault starting from another symptom'