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Home >> Cadillac >> 1999 >> Catera >> Repair and Diagnosis >> Brakes >> Anti-Lock Brake System With Traction Control System >> Symptom Tests >> Test A: Abs Indicator On With No DTCS Set >> Notes

Test A: Abs Indicator On With No DTCS Set: Notes

  1. Perform diagnostic system check. See DIAGNOSTIC SYSTEM CHECK. After performing diagnostic system check, go to next step.
  2. Turn ignition off. Disconnect 31-pin EBTCM connector C1. Install Breakout Box (J-39700) and Adapter (J-39700-280) to EBTCM harness connector C1. Turn ignition switch on. If ABS indicator illuminates, go to step 4)  . If ABS indicator does not illuminate, go to next step.
  3. Replace EBTCM.
  4. Turn ignition off. Disconnect 26-pin instrument cluster connector. Using DVOM, measure resistance between Breakout Box terminals No. 21 and 19. If resistance is infinite, go to step 6)  . If resistance is not infinite, go to next step.
  5. Repair short to ground in Brown/Yellow wire between instrument cluster and EBTCM.
  6. Diagnose instrument cluster. See appropriate INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT.