Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 27 (ANALOG INSTRUMENT PANELS)SYSTEM TESTSTEST O: CHARGE INDICATOR INOPERATIVE
1999 GMC Forward Control 5.7 R, Automatic
Test O: Charge Indicator Inoperative
1999 GMC Forward Control 5.7 R, AutomaticSECTION Test O: Charge Indicator Inoperative
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2001 GMC Savana Special, 2001 GMC Savana Camper Special, 2001 GMC Savana, 2001 Chevrolet RV Cutaway, and 2001 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
- If engine electrical system diagnostic system check has been performed, go to next step. If engine electrical system diagnostic system check has not been performed, go to ENGINE ELECTRICAL SYSTEM DIAGNOSTIC SYSTEM CHECK under SELF DIAGNOSTIC SYSTEM.
- Turn ignition switch to RUN position. Observe CHARGE indicator. If CHARGE indicator is not illuminated, go to next step. If CHARGE indicator is illuminated, check for intermittent or poor connections. Repair as necessary.
- Replace the charge indicator bulb, then go to next step.
- Operate system to verify fault no longer exists. If fault still exists, go to step 2 .
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.