B3270 61 - 01

B3270 61

Central Locking Switch Stuck







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

On-board diagnosis

Type of diagnosis:
- Each time the control module checks if the button is depressed or not.

Enable criteria:
- When the car is unlocked with the central locking button.

Fault criteria:
- Voltage too low.

System reaction to a fault:
- The control module determines that the button has not been pressed until it has returned to an inactive position and is depressed again.

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)