Cut or Broken

Cut or Broken

Symptom

Wire is completely cut through causing: Open circuit, circuit(s) not to operate or not to operate correctly. Possible intermittent fuse failure

Cause

The wire(s) is under stress as a result of the harness being routed incorrectly, snapped by another component, e.g. a sharp edge on a bracket, or body panel.

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.

Overheated (exterior heat)

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.

Wire insulation melted

Cause

The insulation has melted due to contact with a component which is hot, e.g. the exhaust manifold. Possibly due to the harness being routed or retained incorrectly.

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.