B3270 02

B3270 02

Central Locking Switch Circuit, Short to Ground







Fault symptom
- Central locking system cannot be operated with the central locking system button.

On-board diagnosis


Enable criteria:
- When the car is locked/unlocked.

Fault criteria:
- Control module signal invalid.

System reaction to a fault:
- None

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