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Home >> Chevrolet >> 2001 >> Corvette Base, 2D Convertible, Standard >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System With Traction Control System >> Symptom Tests >> Test D: Traction Control & Active Handling Indicator Inoperative

Test D: Traction Control & Active Handling Indicator Inoperative

  1. Perform DIAGNOSTIC SYSTEM CHECK  . Go to next step.
  2. Install scan tool. Turn ignition on, engine off. Using scan tool, observe TCS WARNING INDICATOR/MESSAGE parameter in TCS data list. If scan tool displays OFF, go to next step. If scan tool does not display OFF, go to step  10 .
  3. Turn ignition off. Turn ignition on, engine off. Observe TRACTION CONTROL and ACTIVE HANDLING indicator on instrument cluster during bulb check. If TRACTION CONTROL and ACTIVE HANDLING indicator illuminates during bulb check, and then turns off, go to next step. If TRACTION CONTROL and ACTIVE HANDLING indicator does not illuminate during bulb check, and then turn off, go to step  11 .
  4. Turn ignition off. Install scan tool. Turn ignition on, engine off. Using scan tool, observe TCS SWITCH parameter in BODY CONTROL MODULE data list. Activate traction control switch. If TCS SWITCH parameter changes state, problem is intermittent. See INTERMITTENT OR POOR CONNECTIONS  under DIAGNOSIS & TESTING. If TCS SWITCH parameter does not change state, go to next step.
  5. Turn ignition off. Disconnect traction control switch connector. Connect fused jumper wire (3 amp) between traction control switch connector terminals No. 5 (Black wire) and No. 6 (Brown/White wire). Turn ignition on, engine off. Using scan tool, observe TCS SWITCH parameter. If scan tool displays ON, go to step  9 . If scan tool does not display ON, go to next step.
  6. Check Brown/White wire between traction control switch and BCM open or high resistance. If problem was found, repair as necessary. After repairs, go to step  16 . If problem was not found, go to next step.
  7. Check Black wire between traction control switch and ground open or high resistance. If problem was found, repair as necessary. After repairs, go to step  16 . If problem was not found, go to next step.
  8. Check BCM connector for poor connections. If problem was found, repair as necessary. After repairs, go to step  16 . If problem was not found, go to step  12 .
  9. Check traction control switch connector for poor connections. If problem was found, repair as necessary. After repairs, go to step  16 . If problem was not found, go to step  13 .
  10. Check EBCM connector for poor connections. If problem was found, repair as necessary. After repairs, go to step  16 . If problem was not found, go to step  14 .
  11. Check instrument panel cluster connector for poor connections. If problem was found, repair as necessary. After repairs, go to step  16 . If problem was not found, go to step  15 .
  12. Replace BCM. See appropriate BODY CONTROL MODULES article in ACCESSORIES & EQUIPMENT. After repairs, go to step  16 .
  13. Replace traction control switch. See TRACTION CONTROL SWITCH  under REMOVAL & INSTALLATION. After repairs, go to step  16 .
  14. Replace EBCM. See ELECTRONIC BRAKE CONTROL MODULE  under REMOVAL & INSTALLATION. After repairs, go to step  16 .
  15. Replace instrument cluster. See appropriate ANALOG INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT. After repairs, go to next step.
  16. Operate system to verify repair.
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