Test B: Charge Indicator Light Always On
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, 2002 Chevrolet RV Cutaway, and 2002 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
- If engine electrical diagnostic system check was performed, go to next step. If engine electrical diagnostic system check was not performed, go to ENGINE ELECTRICAL DIAGNOSTIC SYSTEM CHECK under SELF-DIAGNOSTIC SYSTEM.
- Turn ignition switch to RUN position. Observe charge indicator light on Instrument Panel Cluster (IPC). If charge indicator light illuminates, go to next step. If charge indicator light does not illuminate, concern may be intermittent. Check wiring and connections, see WIRING DIAGRAMS .
- Turn ignition switch to OFF position. Disconnect 4-pin generator harness connector. Turn ignition switch to RUN position. If charge indicator light remains illuminated, go to next step. If charge indicator light does not remain illuminated, go to step 5 .
- Test charge indicator control circuit for short to ground. See WIRING DIAGRAMS . If problem exists, repair circuit as necessary and go to step 7 . If no problem exists, go to step 6 .
- Replace generator. See GENERATOR under REMOVAL & INSTALLATION. After repairs are made, go to step 7 .
- Replace PCM. After replacement, reprogram PCM. SeePOWERTRAIN CONTROL MODULE/VEHICLE CONTROL MODULE under REMOVAL & INSTALLATION in BODY CONTROL MODULES - CHEVY EXPRESS & SAVANNA article in COMMUNICATION DEVICES in ACCESSORIES & EQUIPMENT. After repairs are made, go to next step.
- Retest system to verify repair. If condition was found and corrected, system is okay. If condition was not found, go to step 3 .