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 20 (SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEMS)DIAGNOSTIC TESTSSIR DIAGNOSTIC SYSTEM CHECKDIAGNOSTIC PROCEDURE
2001 Chevrolet Cavalier LS, 2.4 T
Diagnostic Procedure
2001 Chevrolet Cavalier LS, 2.4 TSECTION Diagnostic Procedure
WARNING: This page is about a different car, the 2000 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
- Observe AIR BAG warning light while turning ignition switch to RUN position. If AIR BAG warning light flashes 7 times, go to next step. If AIR BAG warning light does not flash 7 times, go to AIR BAG WARNING LIGHT CIRCUIT MALFUNCTION.
- Observe AIR BAG warning light after it flashes 7 times. If AIR BAG warning light turns off, go to step 6 . If AIR BAG warning light does not turn off, go to next step.
- Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Follow scan tool instructions to read Diagnostic Trouble Code (DTC). If scan tool is reading SDM data, go to next step. If scan tool does not communicate with SDM, go to SCAN TOOL DOES NOT COMMUNICATE WITH SDM .
- If scan tool displays DTC go to next step. If scan tool does not display DTC, go to AIR BAG WARNING LIGHT CIRCUIT MALFUNCTION .
- Turn ignition off. Read DTCs. If DTCs B0051 or B0053 are displayed, refer to Diagnostic Procedure for specific DTC. Diagnose remaining current DTCs from lowest to highest. If only history DTCs exist, refer to Diagnostic Aids for specific DTC. A history DTC indicates malfunction has been repaired or is intermittent.
- Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Follow scan tool instructions to read Diagnostic Trouble Code (DTC). If scan tool is reading SDM data, go to next step. If scan tool does not communicate with SDM, go to SCAN TOOL DOES NOT COMMUNICATE WITH SDM .
- Using scan tool, retrieve SIR history DTCs. If scan tool retrieves any history DTCs, go to next step. If scan tool does not retrieve any history DTCs, system is okay at this time.
- Turn ignition off. Read DTCs. Refer to Diagnostic Aids for specific DTC. A history DTC indicates malfunction has been repaired or is intermittent.
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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.