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 MANUALSCHEVROLET2001CAVALIER LS, 2.4 TREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 123 (CHARGING SYSTEM)SYSTEM TESTSTEST B: CHARGE INDICATOR ALWAYS ON
2001 Chevrolet Cavalier LS, 2.4 T
Test B: Charge Indicator Always On
2001 Chevrolet Cavalier LS, 2.4 TSECTION Test B: Charge Indicator Always On
WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
- 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.
- Start engine. If Charge System Fault message remains on, go to next step. If Charge System Fault message does not remain on, problem is intermittent. Check wiring and connections.
- Connect scan tool to Data Link Connector (DLC). DLC is located below left side of instrument panel. Using scan tool, observe Ignition 1 Signal parameter in Powertrain Control Module (PCM) data list. If voltage is 11-15.5 volts, go to next step. If voltage is not 11-15.5 volts, perform TEST A: CHARGING SYSTEM TEST .
- Turn ignition switch to OFF position. Disconnect PCM harness connector. Turn ignition switch to RUN position. If Charge System Fault message is on, go to next step. If Charge System Fault message is off, go to step 7 .
- Inspect Instrument Panel Cluster (IPC) harness connector for poor connections. If problem exists, repair as necessary. After repair, go to step 9 . If connections are okay, go to next step.
- Replace IPC. See appropriate INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT. After repair, go to step 9 .
- Inspect PCM harness connector for poor connections. If problem exists, repair as necessary. After repair, go to step 9 . If problem does not exist, go to next step.
- Replace PCM. See appropriate REMOVAL, OVERHAUL & INSTALLATION article in ENGINE PERFORMANCE. Program PCM. After repair, go to next step.
- Operate system to verify repair. If system is not operating correctly, repeat test beginning at 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.