B0442

B0442 00

Glow Plug Circuit, Open







Fault symptom
- Poor cabin heating
- Heater does not start.

On-board diagnosis

Type of diagnosis:
- Continuous

Enable criteria:
- Ignition ON.
- Glow plug is activated
- Heater not in rest mode.

Fault criteria:
- Current consumption below 2.4A for 2.5 sec.

System reaction to a fault:
- Heater does not start.

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
- Electrical fault in connecting leads or component.