Interior Lights (IB/ZKE)

Defect Code 100:

Interior lights defective:

Explanation: General malfunction of the interior light system

Troubleshooting when individual lamps not operating:
- Check lamps and associated wires for defects

Troubleshooting when all lamps not operating:
- Select defect code memory and check whether a general defect code is stored (e.g. power fuse, door module)
- *D* Perform diagnostic procedure for interior lights.
- The door contacts (microswitch on cylinder lock) and the door handle contacts are checked during *D* diagnostic procedure for power windows. The automatic window lowering function is also affected in the case of defect.