B3817 05 - 03

B3817 05

Lock/Unlock Sensor Circuit, Short to B+ or Open







Fault symptom
- Central locking, out of order.

On-board diagnosis

Type of diagnosis:
- Continuous

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

Fault criteria:
- Control module signal invalid.

System reaction to a fault:
- Bus message indicating sensor position is set to "invalid".

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.