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Home >> GMC >> 2000 >> Yukon Denali >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Symptom Tests >> Test A: Abs Indicator Always On

Test A: Abs Indicator Always On

  1. Perform diagnostic system check. See DIAGNOSTIC SYSTEM CHECK  under DIAGNOSIS & TESTING. After performing diagnostic system check, go to next step.
  2. Turn ignition off for 5 seconds. Turn ignition on and observe ABS indicator light. If indicator light illuminates for 2 seconds then turn off, problem is intermittent. If indicator light does not illuminate for 2 seconds or does not turn off, go to next step.
  3. Using scan tool, select instrument panel cluster special functions menu. Command ABS indicator light off. If indicator light turns off when commanded, go to step  5. If indicator light does not turn off when commanded, go to next step.
  4. Replace instrument panel cluster. After replacing instrument panel cluster, go to step  6.
  5. Replace EBCM. After replacing EBCM, go to next step.
  6. Turn ignition off for 5 seconds. Turn ignition on and observe ABS indicator light. If indicator light illuminates for 2 seconds then turn off, system is okay. If indicator does not illuminate for 2 seconds or illuminates but does not turn off, go to step  3.
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