PDM / B3270 61
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 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 button is depressed. |
Fault criteria:
| Control module signal invalid. |
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:
| Passenger Door Lock Switch |
| (See also description of readings/activations in diagnostic tool) |
