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Test D: TC Indicator Inoperative: Notes

  1. Perform DIAGNOSTIC SYSTEM CHECK  under DIAGNOSIS & TESTING. After performing diagnostic system check, go to next step.
  2. Turn ignition on, with engine off. Using scan tool, enter ABS/TCS data list. While monitoring TCS on/off switch status, press and release TCS 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 31-pin EBTCM connector C1. Install Breakout Box (J-39700) and Adapter (J-39700-280) to EBTCM harness connector C1. Connect a fused jumper wire between breakout box terminals No. 20 and 19. Turn ignition on, with engine off. If TC indicator illuminates, go to next step. If TC indicator does not illuminate, go to step  5 .
  4. Replace EBTCM. See ELECTRONIC BRAKE TRACTION CONTROL MODULE (EBTCM)  under REMOVAL & INSTALLATION. After repairs, perform DIAGNOSTIC SYSTEM CHECK  under DIAGNOSIS & TESTING.
  5. Turn ignition off. Disconnect 26-pin instrument cluster connector. Using DVOM, measure resistance between breakout box terminal No. 20 and instrument cluster connector terminal No. 2 (Brown/Yellow wire). If resistance is not 0-5 ohms, go to next step. If resistance is 0-5 ohms, go to step  7 .
  6. Repair open or high resistance in Brown/Yellow wire between instrument cluster and EBTCM. After repairs, perform DIAGNOSTIC SYSTEM CHECK  under DIAGNOSIS & TESTING.
  7. Diagnose instrument cluster. See appropriate INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT. After repairs, perform DIAGNOSTIC SYSTEM CHECK  under DIAGNOSIS & TESTING.
  8. Turn ignition off. Disconnect 31-pin EBTCM connector C1. Install Breakout Box (J-39700) and Adapter (J-39700-280) to EBTCM harness connector C1. Using DVOM, measure resistance between breakout box terminals No. 31 and 19 while an assistance presses and releases TCS on/off switch. If resistance is not 0-5 ohms, go to next step. If resistance is 0-5 ohms, go to step  4 .
  9. Repair open or high resistance in Brown/Red wire between TCS on/off switch and EBTCM. Also, check for an open in TCS on/off switch. After repairs, perform DIAGNOSTIC SYSTEM CHECK  under DIAGNOSIS & TESTING.
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