Test Notes
You should enter this pinpoint test only when directed here from the symptom charts.To prevent the replacement of good components, be aware that the following areas may be at fault:
- ignition switch
- battery cables
- generator
- voltage regulator
- ground straps
This pinpoint test is intended to diagnose only the following:
- Powertrain Control Module (PCM)
- harness circuits: SIG RTN, PWR GND, VPWR, KAPWR, IGNITION SWITCH
- battery positive voltage (B+)
- closed loop power relay