184000506 - 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 | ||||
| 1 | CHECKING WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
|---|---|---|---|---|
| Using the Examiner check, in the Instrument Panel Node ambient, that there are no errors and the following parameters are present | Continue to Step 4 | System fault. | Continue to Step 2 | |
| Presence of faults in the CAN | Continue to Step 9 | |||
| There are errors | Continue according to the instructions for the diagnostic equipment | |||
| 2 | ELECTRIC POWER SUPPLY CHECK | All OK | Problems met | Operation |
| 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 diagnosis | Electrical connections not working | Restore the correct operation of the damaged wiring | |
| 3 | CHECKING WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
| Using the Examiner check, in the Instrument Panel Node ambient, that there are no errors and the following parameters are present | Continue to Step 4 | Fault persists | Replace the instrument panel Op. 5560B11 | |
| 4 | CHECK WITH ACTIVE DIAGNOSIS | All OK | Problems met | Operation |
| 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 5 | The seatbelts unfastened warning light does not flash | Replace the instrument panel Op. 5060B11 | |
| 5 | CHECKING WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
Keeping the diagnostic equipment connected, check for the following at the Air Bag Node:
| Continue to Step 8 | System/components fault | Continue to Step 6 | |
| Presence of fault in the CAN | Continue to Step 9 | |||
| There are errors | Continue as instructed by the tester | |||
| 6 | ELECTRICAL POWER SUPPLY CHECK | All OK | Problems met | Operation |
| 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 7 | Positive 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 working | Restore the correct operation of the damaged wiring | |||
| 7 | CHECKING WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
| Using the Examiner check, in the Air Bag Node ambient, that there are no errors and the following parameters are present | Continue to Step 5 | Fault persists | Replace Air Bag Node Op. 5580C14 | |
| 8 | CHECK WITH ACTIVE DIAGNOSIS | All OK | Problems met | Operation |
| 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 2 | The seat belts unfastened warning light does not flash | Replace the Air Bag Node Op. 5580C14 | |
| 9 | ELECTRICAL POWER SUPPLY CHECK | All OK | Problems met | Operation |
| 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 node | Continue to Step 1 | Positive 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 working | Restore the correct operation of the damaged wiring | |||
| 10 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
| Check that the fault is no longer present | End of diagnosis | The fault persists | Continue to Step 1 | |