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Test B: Charge Indicator Always On

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  1. If diagnostic system check was not performed, perform ENGINE ELECTRICAL DIAGNOSTIC SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM. If diagnostic system check was performed, go to next step.
  2. Turn ignition switch to RUN position. Observe charge indicator on Instrument Panel Cluster (IPC). If charge indicator illuminates, go to next step. If charge indicator does not illuminate, problem is intermittent. Check wiring and connections.
  3. Turn ignition switch to OFF position. Disconnect generator harness connector. Turn ignition switch to RUN position. If charge indicator remains illuminated, go to next step. If charge indicator does not remain illuminated, go to step  5.
  4. Test charge indicator control circuit for a short to ground. See WIRING DIAGRAMS . If problem exists, repair as necessary. After repair, go to step  7. If problem does not exist, go to step  6.
  5. Replace generator. See GENERATOR  under REMOVAL & INSTALLATION. After repair, go to step  7.
  6. Replace Powertrain Control Module (PCM). See REMOVAL, OVERHAUL & INSTALLATION - TRUCKS article in ENGINE PERFORMANCE. Program PCM. After repair, go to next step.
  7. Operate system to verify repair. If system is not operating correctly, repeat test beginning at step  3.
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