169000400 - Z101 PASSENGER''S SIDE CHARGE CUT-OUT SWITCH FAILURE

When applying this procedure, always consider the following:

  • Measurements cannot be carried out on the airbag wiring.
  • Begin testing the system with the vehicle appliances still connected.
  • The fault must be "Present" or "Present Intermittently" and not "Intermittent". In the event of an Intermittent fault, the Procedure is not applicable. Check the line where the fault was reported carefully.
  • Not all the simulation sensors are available (e.g. side impact sensors).
The airbag fault warning light is controlled by a dedicated connection to the airbag control unit Instrument Panel Node.
The airbag wiring is a safety component. If faults occur in the wires or connectors, all the wiring must be replaced.
1ELECTRICAL CONNECTION CHECKAll OKProblems encounteredOperation
Check that the fault is not detailed as "Implausible value"Move on to Step 2The fault is detailed as "Implausible value"The plausibility fault occurs when switch activations are detected with the key ON: Clear the errors using the diagnostic tester and proceed to step 4
2CHECK RIGHT PRETENSIONERAll OKProblems encounteredOperation
Turn the key to OFF.Disconnect the passenger side charge cut-out switch from the wiring and check that:

  • the switch measures a resistance of approximately 400 Ohms in the "charges enabled" position
  • the switch measures a resistance of approximately 100 Ohms in the "charges disabled" position
Move on to Step 3The measured resistance is incorrect in at least one of the positions or the same resistance value is measured in both positionsReplace the passenger side charge cut-out switch    Op. 5580C26 PASSENGER AIR BAG SWITCH - R RClear the errors using the diagnostic tester and proceed to step 4
3REPLACING THE FACIA WIRINGAll OKProblems encounteredOperation
Replace the wiring    Op. 5505C34 INTERGRATED INSTRUMENT UNDER FACIA FRONT AIR BAG WIRING - R RClear the errors using the diagnostic testerMove on to Step 4
4CHECK ON CORRECT OPERATIONAll OKProblems encounteredOperation
Check that the tester does not indicate other faultsEnd of diagnosisThe diagnostic tester reports other faultsProceed as instructed in the    See table K80 AIRBAG FAILURE WARNING LIGHT ON