Diagnostic Aids

WARNING: This page is about a different car, the 2002 Isuzu Trooper. However, it is still accessible from the selected car via links, so may be relevant.

An intermittent problem can be caused by:

Misrouted harness, rubbed-through wire insulation or broken wire inside insulation.
Poor connection at PCM. Inspect harness connectors for backed-out terminals, improper mating, broken locks, improperly formed or damaged terminals and poor terminal connection. Inspect wiring harness for damage.