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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: ASR/TCS Indicator Inoperative (CAMARO & Firebird)

Test D: ASR/TCS Indicator Inoperative (CAMARO & Firebird)

  1. Perform DIAGNOSTIC SYSTEM CHECK  under DIAGNOSIS & TESTING. Go to next step.
  2. Turn ignition switch to ON position, engine off. Using scan tool, enter TCS Data List. While monitoring TCS On/Off switch status, press and release ASR/TCS ON/OFF switch. If switch status changes from PRESSED to RELEASED as ASR/TCS switch is pressed and released, go to next step. If switch status does not change from PRESSED to RELEASED as ASR/TCS switch is pressed and released, go to step  5 .
  3. Using scan tool, select INSTRUMENT PANEL CLUSTER SPECIAL FUNCTION. Go to WOW INSTRUMENT PANEL in OUTPUT CONTROL. In WOW mode, you can turn on or off instrument panel indicators. All indicators will turn on when commanded on. If ASR/TCS OFF indicator turns on, then off, go to step  11 . If ASR/TCS OFF indicator does not turn on, then off, go to next step.
  4. Disconnect instrument cluster connector. Connect test light across appropriate power and ground terminals. See appropriate ANALOG INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT. If test light is off, repair open in power or ground circuit to instrument cluster. If test light is on, check instrument panel connector for poor connections. If problem was found, repair as necessary. If problem was not found, replace instrument cluster. After repairs, perform DIAGNOSTIC SYSTEM CHECK  under DIAGNOSIS & TESTING.
  5. Remove ASR/TCS switch and disconnect connector. See TRACTION CONTROL SWITCH  under REMOVAL & INSTALLATION. Using scan tool in ABS/TCS data list, read TCS SWITCH status. Connect jumper wire between AST/TCS switch connector terminals "E" and "F". If TCS SWITCH status reads PRESSED with jumper wire connected, go to next step. If TCS SWITCH status does not read PRESSED with jumper wire connected, go to step  7 .
  6. Replace ASR/TCS Switch. See TRACTION CONTROL SWITCH  under REMOVAL & INSTALLATION. After repairs, perform DIAGNOSTIC SYSTEM CHECK  under DIAGNOSIS & TESTING.
  7. Turn ignition switch to OFF position. Using DVOM, measure resistance between ASR/TCS switch connector terminal "F" (Black/White wire) and ground. If resistance is 0-5 ohms, go to step  9 . If resistance is not 0-5 ohms, go to next step.
  8. Repair open or high resistance in Black/White wire between AST/TCS switch and ground. After repairs, perform DIAGNOSTIC SYSTEM CHECK  under DIAGNOSIS & TESTING.
  9. Disconnect EBCM connector. Install Universal Pinout Box (J 39700) using Cable Adapter (J 39700-25) to EBCM connector only Using DVOM, measure resistance between ASR/TCS switch connector terminal "E" and universal pinout box terminal No. 17 (Brown/White wire). If resistance is 0-5 ohms, go to step  11 . If resistance is not 0-5 ohms go to next step.
  10. Repair open or high resistance in Brown/White wire between AST/TCS switch and EBCM. After repairs, perform DIAGNOSTIC SYSTEM CHECK  under DIAGNOSIS & TESTING.
  11. Replace EBCM. See ELECTRONIC BRAKE CONTROL MODULE  under REMOVAL & INSTALLATION. After repairs, perform DIAGNOSTIC SYSTEM CHECK  under DIAGNOSIS & TESTING.
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