| 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. Front light cluster fault | 1. Repair or change the tail-light Op. 5540A44 L/H OR R/H TAIL LIGHT (ONE) - R+R |
| 2. Number plate light fault | Repair or change the number plate lights Op. 5540A94 L/H OR R/H NUMBER PLATE LIGHT (ONE) - R+R |
| 2 | NUMBER PLATE LIGHT ELECTRICAL CIRCUIT CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check the following, in order:- side light fuses;
- connections between battery, engine bay control unit, ignition switch, stalk unit and underfacia junction unit;
- connections between underfacia junction unit and bulbs;
- bulb earth
| 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 E2010 SIDE LIGHTS / NO. PLATE LIGHTS |
| 3 | STEERING COLUMN SWITCH UNIT CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check that an battery voltage output is generated to activate the number plate lights when the stalk switch wheel is operated with the key on See E2010 SIDE LIGHTS / NO. PLATE LIGHTS | 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 | IGNITION SWITCH CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check that an battery voltage output is generated when the key is turned on, particularly to the stalk unit to activate the number plate lights See E2010 SIDE LIGHTS / NO. PLATE LIGHTS | Move on to Step | Ignition switch fault | Repair or replace the ignition switch Op. 5520A12 IGNITION SWITCH ASSEMBLY - R R FOR VERSIONS WITH AIR BAG |
| 5 | UNDERFACIA JUNCTION UNIT CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check that an battery voltage output is generated from the underfacia junction unit to activate the bulbs when the stalk switch wheel is operated with the key on See E2010 SIDE LIGHTS / NO. PLATE LIGHTS | Move on to Step | Underfacia junction unit fault | Repair or change the underfacia junction unit |
| 6 | CHECK ON CORRECT OPERATION | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check that the fault is no longer present | | | |