198001873 - K157 SEAT BELT NOT FASTENED WARNING LIGHT NOT WORKING

The Air Bag Node sends a message via the B-CAN to the Instrument Panel Node.
Test results
1CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation
Using the Examiner in the Instrument Panel Node mode, check that there are no errors and that the parameters are presentMove on to Step 21. System fault2. Presence of errors1. Move on to Step 22. Continue as described by the diagnostic equipment
2ACTIVE DIAGNOSIS CHECKAll OKProblems encounteredOperation
With the Examiner in Air Bag Node mode check that the seat belt unfastened warning light is correctly activated in Active Diagnosis.Move on to Step 3The seat belt unfastened warning light does not flashReplace the Instrument Panel    Op. 5560B10 CONTROL PANEL - R+R
3SEAT BELT SWITCH CHECKAll OKProblems encounteredOperation
Check that the seat belt switch is working properlyMove on to Step 4Seat belt not fastened switch defectiveReplace the belt attachment with switch    Op. 7065A14 ANCHORAGE ROD FOR , (ONE), FRONT SEAT BELT LEFT OR RIGHT - R.R.
4CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation
Using the Examiner check, in Air Bag Node mode, that there are no errors and that the parameters are present.End of diagnosisFault persistsReplace the Air Bag control unit    Op. 5580C14 AIR BAG ECU - R+R