PDM / B3270 02
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Central locking system cannot be operated with the central locking system button.
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:
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:
| Passenger Door Lock Switch |
| (See also description of readings/activations in diagnostic tool) |
