Diagnostic Aids
Scan tool can be used to command each of the outputs on and off to help in finding an intermittent condition.
An intermittent condition may be caused by poor connection, rubbed-through insulation, or a broken wire inside insulation. Check PCM harness connectors for backed-out terminals, improper mating, broken locks, improperly formed or damaged terminals, or poor terminal-to-wire connections before component replacement.