2888371 - I06 MAIN BEAM HEADLAMPS NOT WORKING
With the dipped headlamps switched on (stable position) or in the flashing mode, when the steering column switch unit lever is operated, the main beam headlamps do not work.| Results of the tests | ||||
| 1 | CHECK INDIVIDUAL LIGHTS | All OK | Problems met | Operation | 
|---|---|---|---|---|
| Check the condition of the individual bulbs and the light cluster | Continue to Step 2 | Bulb damaged | Change bulbs | |
| Light unit faulty | Renew or replace the main beam headlamp Op. 5540B18 | |||
| 2 | MAIN BEAM HEADLAMPS ELECTRICAL CIRCUIT CHECK | All OK | Problems met | Operation | 
| Check, in order: 
 | Continue to Step 3 | Component defective | Replace the component involved (if a fuse is involved, search for the cause of the problem) | |
| Connections broken | Restore the connections | |||
| 3 | STEERING COLUMN SWITCH UNIT CHECK | All OK | Problems met | Operation | 
| Check the stalk unit is working properly: in particular, check the side light switch see DESCRIPTION AND OPERATION: 5550A stalk unit | Continue to Step 4 | Stalk unit not working properly | Replace the steering column switch unit Op. 5550A12 | |
| 4 | CHECKING CORRECT OPERATION | All OK | Problems met | Operation | 
| Check that the fault is no longer present | End of diagnosis | Fault persists | Search for the fault starting from another symptom' | |