B2635 02 - 02

B2635 02

Courtesy Light Failure







Fault symptom
- Courtesy lighting function defective

On-board diagnosis

Type of diagnosis:
- Continuous

Enable criteria:
- Each time courtesy lights are activated.

Fault criteria:
- Control module input short circuit to ground.

System reaction to a fault:
- Control module output deactivated during this driving cycle. When the ignition is in ON position, the output is activated once in order to check if the fault remains.

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:
- Courtesy Lamp Passenger Door
(See also description of readings/activations in diagnostic tool)