2398870 - K157 SEAT BELT NOT FASTENED WARNING LIGHT NOT WORKING

The Air Bag Node sends the message via the B-CAN network to the Instrument Panel Node.
Results of the tests
1CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
Using the Examiner check, in the Instrument Panel Node ambient, that there are no errors and the following parameters are presentContinue to Step 4System fault. Continue to Step 2
Presence of faults in the CAN Continue to Step 9
There are errorsContinue according to the instructions for the diagnostic equipment
2ELECTRIC POWER SUPPLY CHECKAll OKProblems metOperation
Positive and/or earth electrical power supply faulty Replace the component involved (if a fuse is involved, search for the cause of the problem) End of diagnosisElectrical connections not workingRestore the correct operation of the damaged wiring
3CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
Using the Examiner check, in the Instrument Panel Node ambient, that there are no errors and the following parameters are presentContinue to Step 4Fault persistsReplace the instrument panel Op. 5560B11
4CHECK WITH ACTIVE DIAGNOSISAll OKProblems metOperation
With the Examiner in the Instrument Panel Node ambient, check, in active diagnosis, that the seatbelts unfastened warning light is correctly activated Continue to Step 5The seatbelts unfastened warning light does not flash Replace the instrument panel Op. 5060B11
5CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation

Keeping the diagnostic equipment connected, check for the following at the Air Bag Node:

  • System/component faults
  • Faults on the CAN network(s)
Continue to Step 8System/components faultContinue to Step 6
Presence of fault in the CAN Continue to Step 9
There are errorsContinue as instructed by the tester
6ELECTRICAL POWER SUPPLY CHECKAll OKProblems metOperation
Check that the node electrical power supply is correct. Check the wiring between the Body Computer and the Air Bag Node, in particular that each individual pin is correctly connected Continue to Step 7Positive and/or earth electrical power supply faulty Replace the component involved (if a fuse is involved, search for the cause of the problem)
Electrical connections not workingRestore the correct operation of the damaged wiring
7CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
Using the Examiner check, in the Air Bag Node ambient, that there are no errors and the following parameters are present Continue to Step 5Fault persistsReplace Air Bag Node Op.   5580C14 
8CHECK WITH ACTIVE DIAGNOSISAll OKProblems metOperation
With the Examiner in the Air Bag Node ambient, check, in active diagnosis, that the seat belt unfastened warning light is correctly activated Continue to Step 2The seat belts unfastened warning light does not flash Replace the Air Bag Node Op.   5580C14 
9ELECTRICAL POWER SUPPLY CHECKAll OKProblems metOperation
Check that the supply / electrical connections of the node(s). Check the network wiring between Air Bag, Body Computer and Instrument Panel, and in particular that each individual pin is correctly connected on each nodeContinue to Step 1Positive and/or earth electrical power supply faultyReplace the component involved (if a fuse is involved, search for the cause of the problem)
Electrical connections not workingRestore the correct operation of the damaged wiring
10CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisThe fault persistsContinue to Step 1