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Home >> Chevrolet >> 2001 >> Camaro Base, 2D Convertible, Automatic >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System With Traction Control System - BOSCH 5.3 >> Symptom Tests >> Test D: Traction Off Indicator Inoperative (Grand PRIX)

Test D: Traction Off Indicator Inoperative (Grand PRIX)

  1. Perform DIAGNOSTIC SYSTEM CHECK  under DIAGNOSIS & TESTING. Go to next step.
  2. Turn ignition on, engine off. Using scan tool, enter ABS/TCS data list. While monitoring TRAC ON/OFF SWITCH status, press and release TRAC on/off switch. If switch status changes as switch is pressed and released, go to next step. If switch status does not change as switch is pressed and released, go to step  8 .
  3. Turn ignition off. Disconnect EBCM connector. Install Universal Pinout Box (J 39700) using Cable Adapter (J 39700-25) to EBCM harness connector only. Connect fused jumper wire between universal pinout box terminals No. 18 (Purple/White wire) and No. 15 (Black/White wire). Turn ignition on, engine off. If TRAC OFF indicator illuminates, go to next step. If TRAC OFF indicator does not illuminate, go to step  5 .
  4. Replace EBCM. See ELECTRONIC BRAKE CONTROL MODULE  under REMOVAL & INSTALLATION. After repairs, go to step  10 .
  5. Turn ignition off. Disconnect instrument cluster connector. Using DVOM, measure resistance between universal pinout box terminal No. 18 (Purple/White wire) and instrument cluster connector terminal "L" or A6 (Purple/White wire). If resistance is 0-5 ohms, go to step  7 . If resistance is not 0-5 ohms, go to next step.
  6. Repair open or high resistance in Purple/White wire between driver information display or trip calculator and EBCM. After repairs, go to step  10 .
  7. Diagnose driver information display or trip calculator. See appropriate ANALOG INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT. After repairs, go to step  10 .
  8. Turn ignition off. Disconnect EBCM connector. Install Universal Pinout Box (J 39700) using Cable Adapter (J 39700-25) to EBCM harness connector only. Using DVOM, measure resistance between universal pinout box terminals No. 17 (Brown/White wire) and No. 15 (Black/White wire) while an assistance presses and releases TRAC on/off switch. If resistance is 0-5 ohms, go to step  4 . If resistance is not 0-5 ohms, go to next step.
  9. Repair open or high resistance in Brown/White wire between TRAC on/off switch and EBCM. Also, check for open in TRAC on/off switch. After repairs, go to next step.
  10. Operate system to verify repair.
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