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Test B: Charge Indicator Always On

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. If diagnostic system check was not performed, perform ENGINE ELECTRICAL DIAGNOSTIC SYSTEM CHECK  under ON-VEHICLE TESTING. If diagnostic system check was performed, go to next step.
  2. Turn ignition switch to RUN position. If charge indicator illuminates, go to next step. If charge indicator does not illuminate, repair by symptom. See SYMPTOM INDEX  table.
  3. Turn ignition switch to OFF position. Disconnect 4-pin generator harness connector. Turn ignition switch to RUN position. If charge indicator illuminates, go to next step. If charge indicator does not illuminate, perform TEST A: CHARGING SYSTEM TEST  .
  4. Test the charge indicator control circuit for a short to ground. See WIRING DIAGRAMS  . If problem exists, repair as necessary. After repair, go to step  6 . If problem does not exist, go to next step.
  5. Replace PCM. See REMOVAL, OVERHAUL & INSTALLATION article in ENGINE PERFORMANCE. Program PCM. After repair, go to next step.
  6. Operate system to verify repair. If system is not operating correctly, repeat test beginning at step  3 .
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