I21 Rear foglights not working
- Make
- Alfa Romeo
- Model
- 156 Factory Service Manual
- Year
- 1997–2002
- Section
- Lights › I21 Rear foglights not working
I21 Rear foglights not working
The rear fog lamp does not work when the switch on the control panel in the centre of the facia is operated with the dipped beams on (or fog lamp on). This fault is indicated by the light failure warning light
| Step | Test procedure | Result | Action |
|---|---|---|---|
| 0 | PRELIMINARY CHECKS Check operation of the light check device. The light failure warning light will come on if the rear fog lamps do not work. Check the operation of the dipped beam headlamps | OK | |
| The fault is not indicated by the light failure warning light | Move onto step (see I30) | ||
| The dipped beam headlamps do not work | Move onto step (see I05) | ||
| 1 | CHECK INDIVIDUAL LIGHTS Check the condition of the individual bulbs and the bulb holder assembly | OK | |
| Bulbs damaged |
End of diagnosis | ||
| Bulb holder faulty |
End of diagnosis | ||
| 2 | CHECK REAR FOG LAMP ELECTRICAL CIRCUIT Check, in order:
| OK | |
| Component defective |
End of diagnosis | ||
| Connections broken |
End of diagnosis | ||
| 3 | CHECK REAR FOG LAMP SWITCH Check rear fog lamp switch operation | OK | End of diagnosis |
| Rear fog lamp switch faulty |
End of diagnosis | ||
| 4 | CHECK CORRECT OPERATION Check that the fault is no longer present | OK | End of diagnosis |
| Fault persists | Incorrect selection of diagnostic procedure |
Parts & tools for this job For 1997 Alfa Romeo 156
- TOOLTorque wrenchSearch: 3/8 inch torque wrench
- TOOLSocket setSearch: socket set metric
- BOOKHaynes manualSearch: Haynes manual Alfa Romeo 156
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