PDM / B3130 02
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Central locking, out of order.
Lock Motors Common Circuit, Short to Ground
Fault symptom
Central locking, out of order.
On-board diagnosis
Type of diagnosis:
Enable criteria:
| When the car is locked/unlocked. |
Fault criteria:
| Control module input short circuit to ground. |
System reaction to a fault:
| When the fault is not active, the locking motor attempts to lock. |
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:
| Lock Motor Passenger Door Locked |
| (See also description of readings/activations in diagnostic tool) |
