DDM / B2652 01
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Luggage compartment button and central locking button.
Button lighting not working.
Switch Illumination Circuit, Short to Ground
Fault symptom
Luggage compartment button and central locking button.
Button lighting not working.
On-board diagnosis
Type of diagnosis:
Enable criteria:
| When panel lighting is activated. |
| The following diagnostic trouble codes may not be generated: |
Fault criteria:
| Control module signal invalid. |
System reaction to a fault:
| The control module attempts to activate button lighting during each new driving cycle. |
Checking the wiring harness
Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.
Diagnostic help
Diagnosis regards:
| Electrical fault in connecting leads or component. |
Functions in the diagnostic tool related to the fault:
| Switch Illumination Driver Door |
| (See also description of readings/activations in diagnostic tool) |
