323000955 - I058 INTERIOR LIGHTS DO NOT GO OFF AT KEY-ON

The interior lights operate when operated manually, but the timer does not stop when the key is turned on.
When one of the side doors is opened, the courtesy light timer comes on for 3 minutes and light activation/deactivation is gradual (dimmed). When the vehicle is unlocked after operating the remote control, the courtesy light comes on for 15 seconds, which is interrupted by the key on signal. If the key ON signal is present continuously when opening a door, the courtesy lights come on.
Test results
1INDIVIDUAL BULB CHECKAll OKProblems encounteredOperation
Check the condition of the relevant bulb holder assembly and operation of the courtesy light switches.Move on to Step 21. Front courtesy light faulty.2. Rear courtesy light faulty.3. Left front door switch faulty.4. Right front door switch faulty.5. Left rear door switch faulty.6. Right rear door switch faulty.7. Boot switch faulty.1. Repair or replace the courtesy light    Op. 7040E10 FRONT COURTESY LIGHT - R+R 2. Repair or replace the courtesy light    Op. 7040E16 REAR COURTESY LIGHT - R+R3. Restore or replace switch.4. Restore or replace switch.5. Restore or replace switch.6. Restore or replace switch.7. Restore or replace switch.
2INTERIOR LIGHTS ELECTRICAL CIRCUIT CHECKAll OKProblems encounteredOperation
Check the following, in order:- connections between the courtesy light and Body Computer;- connection to courtesy light + 30;- courtesy light earth connection    See E2510 COURTESY LIGHTS Move on to Step 31. Connections not correct.2. Earth on courtesy lights defective.1. Restore the correct connections    See E2510 COURTESY LIGHTS 2. Restore the correct earth connection    See E2510 COURTESY LIGHTS
3SIGNAL CHECKAll OKProblems encounteredOperation
Check for presence of + 15 on body computer    See E2510 COURTESY LIGHTS Move on to Step 4Signal does not reach Body Computer.Restore the correct power supply to the Body Computer.
4CHECK ON CORRECT OPERATION OF BODY COMPUTERAll OKProblems encounteredOperation
Check that the fault is no longer present.End of diagnosis.Body Computer defectiveReplace Body Computer    Op. 5505A35 MAIN BODY COMPUTER/JUNCTION UNIT - R.R.