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 MANUALSCHEVROLET1999CORVETTE 2D COUPE, STANDARDREPAIR AND DIAGNOSISELECTRICALCHARGING SYSTEMSON-VEHICLE TESTINGCHARGE INDICATOR LIGHT ALWAYS ON
1999 Chevrolet Corvette 2D Coupe, Standard
Charge Indicator Light Always On
1999 Chevrolet Corvette 2D Coupe, StandardSECTION Charge Indicator Light Always On
- Perform charging system check. See CHARGING SYSTEM CHECK . Go to next step.
- Ensure battery is fully charged. Load test battery. If battery is faulty, go to next step. If battery is okay, go to step 4 .
- Replace battery. Recheck system. See CHARGING SYSTEM CHECK .
- Start engine. Turn HVAC to lower (floor) position, with fan on high speed. Turn high beam headlights on. Ensure idle is 800-1000 RPM. Check voltage at battery terminals. If voltage is 13.5-15 volts, go to next step. If voltage is not 13.5-15 volts, check generator using CS Electronic Generator Tester (J41450-B). Follow instructions provided with tester. Repair as necessary. Recheck system. See CHARGING SYSTEM CHECK .
- Install scan tool. Check for PCM DTCs. If DTC P0562 and P0563 do not exist, go to next step. If DTC P0562 or P0563 exist, diagnose and repair DTC first. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
- Check instrument cluster voltmeter. If voltmeter reading is normal, go to next step. If voltmeter reading is not normal, go to GAUGE INACCURATE OR INOPERATIVE .
- Replace instrument panel. See ANALOG INSTRUMENT PANELS - CORVETTE article. Recheck system. See CHARGING SYSTEM CHECK .
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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.