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 9 (STEERING COLUMN AND STEERING COLUMN SWITCHES)DIAGNOSTIC TESTSDTC B2860: COLUMN POSITION SENSOR FAILURE
2001 Chevrolet Cavalier LS, 2.4 T
DTC B2860: Column Position Sensor Failure
2001 Chevrolet Cavalier LS, 2.4 TSECTION DTC B2860: Column Position Sensor Failure
WARNING: This page is about a different car, the 1999 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
- Perform telescoping column system check. See TELESCOPING COLUMN SYSTEM CHECK under TROUBLE SHOOTING. Go to next step.
- Connect scan tool to Diagnostic Link Connector (DLC). Turn ignition on. Select Seat Control Module (SCM) DTC display on scan tool. If DTC B2860 is stored as a history code, go to next step. If DTC B2860 is not stored as a history code, go to step 6 .
- Select SCM data display on scan tool, and monitor steering column position sensor data. Move telescoping actuator switch to operate drive motor. If scan tool indicates 0.1-4.78 volts while moving column fore and aft, go to step 12 . If scan tool does not indicate 0.1-4.78 volts, while moving column fore and aft, go to next step.
- Turn ignition off. Disconnect telescoping actuator connector. Turn ignition on. Using DVOM, measure voltage between telescoping actuator connector terminal "A" (Purple wire/Brown wire) and ground, while operating column fore and aft. If reading is 4.0-5.5 volts, go to next step. If reading is not 4.0-5.5 volts, go to step 9 .
- Check voltage between telescoping actuator connector terminals "A" (Purple wire) and "C" (White wire), while operating column fore and aft. If reading is 4.0-5.5 volts, go to step 10 . If reading is not 4.0-5.5 volts, go to step 7 .
- Turn ignition off. Disconnect telescoping actuator connector. Turn ignition on. Using DVOM, measure voltage between telescoping actuator connector terminal "B" (Black wire/Dark Green wire) and ground, while operating telescoping actuator switch. If reading is 3.5-5.5 volts, go to step 10 . If reading is not 3.5-5.5 volts, go to step 8 .
- Check for open or shorted condition in Purple wire/Brown wire between telescoping actuator and SCM 26-pin connector C1. If problem is located, repair as necessary and go to step 14 . If circuit is okay, go to step 11 .
- Check for open or shorted condition in Black wire/Green wire between telescoping actuator and SCM 26-pin connector C1. If problem is located, repair as necessary and go to step 14 . If circuit is okay, go to step 11
- Check for open or shorted condition in White wire between telescoping actuator assembly and SCM 26-pin connector C1. If problem is located, repair as necessary and go to step 14 . If circuit is okay, go to step 11 .
- Replace telescoping actuator assembly. See TELESCOPING ACTUATOR ASSEMBLY under REMOVAL & INSTALLATION. After repairs, go to step 14
- Replace Seat Control Module (SCM). See POWER SEATS - CORVETTE article. After repairs, go to step 14 .
- Check telescoping actuator position sensor circuits for intermittent malfunction. If problem is found, go to step 14 . If circuits are okay, go to next step.
- Turn ignition off. Reconnect all disconnected components. Turn ignition on. Clear all DTCs. See CLEARING DIAGNOSTIC TROUBLE CODES (DTCS) . Wait 20 seconds. If DTC B2860 sets as history code, go to step 11 . If DTC B2860 does not set, system is okay at this time.
- Turn ignition off. Reconnect all disconnected components. Turn ignition on. Clear all DTCs. See CLEARING DIAGNOSTIC TROUBLE CODES (DTCS) . Perform telescoping column system check. See TELESCOPING COLUMN SYSTEM CHECK under TROUBLE SHOOTING.
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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.