Overheated (short circuit)

Overheated (short circuit)

Symptom

Wiring damaged or shorted to ground causing: Fuse(s) to blow, circuit(s) not to operate or not to operate correctly.

Wiring damaged or open circuit causing: Circuit(s) not operating or not operating correctly.

86M 2539

Wire insulation burned

Cause

The insulation has burned due to the wire being shorted. Possibly due to the nature of the fault or previous attempts at repair. Burned insulation is normally due to more current passing through a wire than it is rated for.

Action

Locate damaged section of wiring/harness, carefully cut back the tape or insulation from the harness with a suitable tool. If the harness has a black plastic conduit simply pull out the desired wire(s), see Repair Techniques.

Mis – routed

Symptom

Intermittent circuit operation.

Dynamic faults i.e. faults do not occur until the vehicle is driven round corners or over rough/bumpy roads.

Wiring damaged or shorted to ground causing: Fuse(s) to blow, circuit(s) not to operate or not to operate correctly.

Wiring damaged or open circuit causing: Circuit(s) not to operate or not to operate correctly.

Wire harness mis – routed

86M 2540

Cause

The wiring does not follow the correct routing, wiring is too tight or too slack, interfering with another component.

Action

Re – route the wiring harness, and secure in clips and retainers as necessary. Ensure no damage exists to the harness, its insulation and connectors.