B0283 01

B0283 01

Rear Demist Relay Circuit, Short to B+







Fault symptom
- Heated rear window, faulty function.

On-board diagnosis

Type of diagnosis:
- Continuous

Enable criteria:
- Ignition ON.

Fault criteria:
- Output voltage exceeds 6 V when electrically operated rear window is activated.

System reaction to a fault:
- None

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
- If there is a short-circuit to B+, the electrically operated rear window cannot be activated.