B2652 02 - 01

B2652 02

Switch Illumination Circuit, Open







Fault symptom
- Luggage compartment button and central locking button.
- Button lighting lit continuously.

On-board diagnosis

Type of diagnosis:
- Continuous

Enable criteria:
- When panel lighting is activated.
- The following diagnostic trouble codes may not be generated:
- B1480

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:

Test value:
- Switch Illumination Driver Door
(See also description of readings/activations in diagnostic tool)