B3622 05

B3622 05

Steering Wheel Control, Horn, Open/Short to B+







Fault symptom
- Horn not working.
- No Sentronic function.

On-board diagnosis

Type of diagnosis:
- Continuous

Enable criteria:
- Turn Ignition On

Fault criteria:
- Control module output short-circuit to B+/open-circuit.

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
- The DTC can be generated if the control module is programmed for a vehicle equipped with Sentronic, but there are no Sentronic buttons.