Fault diagnosis
I21 REAR FOG LAMPS NOT WORKING
Engines: 2.0 16V, 2.0 JTD 8V, 2.3 JTD 16V, 2.8 JTD 8V
The rear fog lights do not work when the button on the relevant switch unit is operated with the key ON and the dipped beams on.
Engines: 2.0 16V, 2.0 JTD 8V, 2.3 JTD 16V, 2.8 JTD 8V
| STEP | OPERATIONS TO BE CARRIED OUT | TEST RESULTS | ||
|---|---|---|---|---|
| 1 | INDIVIDUAL LIGHT CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check the condition of the bulbs and associated bulb holder; | Move on to Step | 1. Bulbs damaged | 1. Change the bulbs Op. 5540A74 BULB OF A SIDELIGHT OR FOG LAMP OR REVERSING LIGHT IN A TAIL-LIGHT, LH OR RH R R | |
| 2. Tail-light cluster fault | 2. Replace or change the tail-light cluster Op. 5540A44 L/H OR R/H TAIL LIGHT (ONE) - R+R | |||
| 2 | REAR FOG LIGHT ELECTRICAL CIRCUIT CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
Check the following, in order:
| Move on to Step | 1. Component defective | 1. Replace defective component (in the case of a fuse, find out what caused it to blow). | |
| 2. Connections interrupted | 2. Repair the connections See E2031 REAR FOG LAMPS | |||
| 3 | STEERING COLUMN SWITCH UNIT CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check that an earth signal output is generated to the switch control unit when the stalk switch wheel is turned to dipped/main beam See E2031 REAR FOG LAMPS | Move on to Step | Stalk unit not working properly | Replace the steering column switch unit Op. 5550A12 COMPLETE STALK UNIT - R+R FOR VERSIONS WITH AIR BAG | |
| 4 | SWITCH CONTROL UNIT CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
Check the following, in order:
| Move on to Step | 1. Power supply incorrect | 1. Switch control unit fault | |
| 2. Restore correct power supply See E2031 REAR FOG LAMPS | 2. Change switch control unit | |||
| 5 | CHECK ON CORRECT OPERATION | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check that the fault is no longer present | ||||