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Test B: Charge Indicator Always On

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. 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 SELF-DIAGNOSTIC SYSTEM. If diagnostic system check was performed, go to next step.
  2. Turn ignition switch to RUN position. If charge indicator illuminates, go to step  3 . If charge indicator does not illuminate, repair by symptom. See SYMPTOM INDEX  table.
  3. Connect scan tool to Data Link Connector (DLC). DLC is located below left side of instrument panel. With scan tool, observe the Battery Voltage parameter in the Instrument Panel Cluster data list. If the voltage measured is within 10.0-15.0 volts, go to next step. If voltage is not as specified, perform TEST A: CHARGING SYSTEM TEST  .
  4. Replace the Instrument Panel Cluster (IPC). See REMOVAL, OVERHAUL & INSTALLATION article under GAUGES & INSTRUMENT PANELS in ACCESSORIES & EQUIPMENT.
  5. Operate system to verify repair. If system is not operating correctly, repeat test beginning at step  3 .
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