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 DIAGNOSISRESTRAINTSAIR BAG, SRSSUPPLEMENTAL INFLATABLE RESTRAINT SYSTEMDIAGNOSTIC TESTSDTC B1001: OPTION CONFIGURATION ERRORDIAGNOSTIC PROCEDURE
2001 Chevrolet Cavalier LS, 2.4 T
Diagnostic Procedure
2001 Chevrolet Cavalier LS, 2.4 TSECTION Diagnostic Procedure
- If SIR Diagnostic System Check has been performed, go to next step. If SIR Diagnostic System Check has not been performed, go to SIR DIAGNOSTIC SYSTEM CHECK .
- Using scan tool, verify that PCM is programmed with correct VIN for vehicle. If VIN is correct, go to step 4. If VIN is not correct, go to next step.
- Using scan tool, program correct VIN into PCM. Go to step 9.
- If BCM was replaced, go to next step. If BCM was not replaced, go to step 6.
- Using scan tool, reprogram BCM. Go to step 9.
- Using scan tool, verify that BCM is programmed with correct VIN by comparing stored VIN in BCM to VIN stored in PCM. If BCM is programmed with correct VIN, go to step 8. If VIN is not correct, go to next step.
- Using scan tool, reprogram BCM. Go to step 9.
- Replace SDM. See SENSING & DIAGNOSTIC MODULE (SDM) under REMOVAL & INSTALLATION. Go to next step.
- Reconnect all SIR components. Ensure that all components are properly mounted. Turn ignition on. Using scan tool, clear DTCs. Go to SIR DIAGNOSTIC 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.