2888378 - I50 INTERIOR LIGHTS NOT WORKING / UNDER NO CIRCUMSTANCES
When the controls are operated, the interior lights 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 bulb holder assembly (which often also contains the light switch) | Continue to Step 2 | Bulb damaged | Change bulbs | |
| Bulb holder faulty | Repair or replace the bulb holder assembly | |||
| 2 | CHECK INTERIOR LIGHTS ELECTRICAL CIRCUIT | 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 | 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' | |