Traction Off Indicator Inoperative
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.
- If Anti-lock Brake System (ABS) diagnostic system check has been performed, go to next step. If ABS diagnostic system check has not been performed, see diagnostic system check in appropriate ANTI-LOCK article in BRAKES.
- Turn ignition on. Connect scan tool to DLC located under steering column. Select BODY CONTROL MODULE DATA LIST and monitor TCS SWITCH STATE. Press and release Traction Control Switch (TCS) located on center console. If TCS SWITCH STATE on scan tool changes properly with activation of switch, go to next step. If TCS SWITCH STATE on scan tool does not change properly with activation of switch, go to step 9 .
- Select ABS/TCS or ABS/TCS/ACTIVE HANDLING SPECIAL FUNCTIONS and monitor TCS SWITCH STATUS. Press and release Traction Control Switch (TCS). If TCS SWITCH STATUS on scan tool does not change properly with activation of switch, go to next step. If TCS SWITCH STATUS on scan tool changes properly with activation of switch, go to step 5 .
- Replace Electronic Brake Control Module (EBCM). After repairs, go to diagnostic system check in appropriate ANTI-LOCK article in BRAKES.
- Using scan tool, turn on traction off indicator (indicator matches image on traction control switch). If traction off indicator turns on, go to step 4 . If traction off indicator does not turn on, go to next step.
- Turn ignition off. Remove instrument panel and check traction off indicator bulb. If bulb is faulty, go to next step. If bulb is okay, go to step 8 .
- Replace traction off indicator bulb. See INSTRUMENT PANEL CLUSTER (IPC) BULBS under REMOVAL & INSTALLATION. After repairs, go to diagnostic system check in appropriate ANTI-LOCK article in BRAKES.
- Replace IPC. See INSTRUMENT PANEL CLUSTER (IPC) under REMOVAL & INSTALLATION. After repairs, go to diagnostic system check in appropriate ANTI-LOCK article in BRAKES.
- Remove TCS from center console by opening center console lid and pull rear of switch housing to release clips. Disconnect electrical connector. Select BODY CONTROL MODULE DATA LIST and monitor TCS SWITCH STATE. Connect a jumper wire between traction control switch connector terminals No. 5 (Black wire) and No. 7 (Brown/White wire). See Fig 1 . If TCS SWITCH STATE on scan tool reads PRESSED with jumper wire connected, go to next step. If TCS SWITCH STATE on scan tool does not read PRESSED with jumper wire connected, go to step 11 .
- Replace TCS. After repairs, go to diagnostic system check in appropriate ANTI-LOCK article in BRAKES.
- Turn ignition off. Using DVOM, measure resistance between TCS connector terminal No. 5 (Black wire) and ground. If resistance is greater than 5 ohms, go to next step. If resistance is less than 5 ohms, go to step 13 .
- Repair open or high resistance in Black wire between TCS and Splice Pack SP201 located at base of left "A" pillar. After repairs, go to diagnostic system check in appropriate ANTI-LOCK article in BRAKES.
- Disconnect BCM connector C2. See Figure . Using DVOM, measure resistance of Brown/White wire between TCS terminal No. 6 and BCM connector C2 terminal D15. See Figure . If resistance is greater than 5 ohms, go to next step. If resistance is less than 5 ohms, go to step 15 .
- Repair open or high resistance in Brown/White wire between TCS and BCM. After repairs, go to diagnostic system check in appropriate ANTI-LOCK article in BRAKES.
- Replace Body Control Module (BCM). See BODY CONTROL MODULE (BCM) under REMOVAL & INSTALLATION. After repairs, go to diagnostic system check in appropriate ANTI-LOCK article in BRAKES.