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 MANUALSCHEVROLET2001VENTURE BASE, VAN CARGO EXTENDEDREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLANTI-LOCK BRAKE SYSTEM WITH TRACTION CONTROL SYSTEM - DELPHI DB 7DIAGNOSTIC TESTSDTC C1293: DTC C1291 WAS SET IN PREVIOUS IGNITION CYCLE
2001 Chevrolet Venture Base, Van Cargo Extended
DTC C1293: DTC C1291 Was Set In Previous Ignition Cycle
2001 Chevrolet Venture Base, Van Cargo ExtendedSECTION DTC C1293: DTC C1291 Was Set In Previous Ignition Cycle
- Perform diagnostic system check. See DIAGNOSTIC SYSTEM CHECK under DIAGNOSIS & TESTING. After performing diagnostic system check, go to next step.
- Depress brake pedal. Observe brakelights. If brakelights are on, go to next step. If brakelights do not turn on, go to step 7 .
- Depress brake pedal. Using scan tool, observe brake switch status parameter in ABS data list. If parameter changes state, problem is intermittent. See INTERMITTENTS & POOR CONNECTIONS under DIAGNOSIS & TESTING. If parameter does not change state, go to next step.
- Turn ignition off. Check brakelight switch and adjust and/or calibrate if necessary. After adjustments, go to step 14 . If adjustment is not necessary, go to next step.
- Turn ignition off. Disconnect brakelight switch connector. Connect a fused jumper wire between battery positive voltage circuit and signal circuit of brakelight switch. Turn ignition on, with engine off. Using scan tool, observe brake switch status parameter. If scan tool displays APPLIED, go to step 11 . If scan tool does not display APPLIED, go to next step.
- Check brakelight switch signal circuit for open between splice pack and EBCM. Repair as necessary. After repairs, go to step 14 . If circuit is okay, go to step 10 .
- Check brakelight switch battery positive voltage circuit for short to ground or open. Repair as necessary. After repairs, go to step 14 . If circuit is okay, go to next step.
- Check brakelight switch signal circuit for open between switch and splice. Repair as necessary. After repairs, go to step 14 . If circuit is okay, go to next step.
- Check brakelight switch signal circuit for short to ground. Repair as necessary. After repairs, go to step 14 . If circuit is okay, go to next step.
- Check EBCM harness connector for poor connections. Repair as necessary. After repairs, go to step 14 . If connections are okay, go to step 12 .
- Check brakelight switch for poor connections at harness connector. Repair as necessary. After repairs, go to step 14 . If connections are okay, go to step 13 .
- Replace EBCM. After replacing EBCM, go to step 14 .
- Replace brakelight switch. After replacing switch, go to next step.
- Using scan tool, clear DTCs. Recheck DTCs. If DTC resets, go to step 2 . If DTC does not reset, system is okay.
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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.