Intermittents and Poor Connections Diagnosis

Most intermittents are caused by faulty electrical connections or wiring. Inspect for the following items:
- Wiring broken inside the insulation.
- Poor connection between the male and female terminal at a connector. Refer to Testing for Proper Terminal Contact below for the specific procedure.
- Poor terminal to wire connection. Some conditions which fall under this description are poor crimps, poor solder joints, crimping over wire the insulation rather than the wire itself and corrosion in the wire to terminal contact area, etc.
- Wire insulation which is rubbed through. This causes an intermittent short as the bare area touches other wiring or parts of the vehicle.
- Refer to Testing for Electrical Intermittents Diagnostic Aids for test procedures to detect intermittent open, high resistance, short to ground, and short to voltage conditions.