B3870 01

B3870 01

Extra Lights Relay Circuit, Open/Short to B+

Fault symptom
- Auxiliary lamp not working.

On-board diagnosis

Type of diagnosis:
- Continuous

Enable criteria:
- Ignition ON.

Fault criteria:
- Voltage on the control module output exceeds 6 V when auxiliary lamp is on.

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:

Activation:
- Extra Lights Relay