3360283 - K73 SEAT BELT UNFASTENED WARNING LIGHT ON
With seat belts fastened, the seat belt unfastened warning light stays on. | The seat belt unfastened warning light is turned on by a direct earth control between the AIR BAG control unit and the Instrument Panel Node. |
| Results of the tests | ||||
| 1 | CHECKING WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
|---|---|---|---|---|
Connect an EXAMINER and check the AIR BAG CONTROL UNIT to ensure:
| Continue to Step 2 | Presence of fault in warning light/belt switch | Continue following the instructions given by the diagnostic equipment | |
| There are errors in the control unit | Continue according to the instructions for the diagnostic equipment | |||
| 2 | CHECKING WARNING LIGHT OPERATION | All OK | Problems met | Operation |
| With the ignition key turned off, disconnect the airbag control unit, turn the key to ON and check the warning light is off | Continue to Step 4 | warning light on | Continue to Step 3 | |
| 3 | CHECKING ELECTRICAL EQUIPMENT | All OK | Problems met | Operation |
| Check the insulation of the warning light control lead from air bag control unit to the instrument panel. See E7030 AIRBAG | Continue to Step 5 | cable short circuited to earth; | Change wiring See E7030 AIRBAG | |
| 4 | CHECKING CORRECT OPERATION | All OK | Problems met | Operation |
| Check that the fault is no longer present | End of diagnosis | Fault persists | Replace air bag control unit Op. 5580C14 | |
| 5 | CHECKING CORRECT OPERATION | All OK | Problems met | Operation |
| Check that the fault is no longer present | Fault persists | Replace instrument panel Op. 5560B11Search for the fault starting from another symptom' | ||