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Home >> Pontiac >> 2001 >> Aztek Base, AWD >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System With Traction Control System - BOSCH 5.3 >> Symptom Tests >> Test E: Traction Off Indicator Always On
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Test E: Traction Off 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. Install scan tool. Turn ignition on, with engine off. Using scan tool, observe Traction Switch parameter in Body Control Module data list. If scan tool displays OFF, go to next step. If scan tool does not display OFF, go to step  4.
  3. Activate traction control switch. Using scan tool, observe Traction Switch parameter. If Traction Switch parameter changes state, see INTERMITTENT & POOR CONNECTIONS  under DIAGNOSIS & TESTING. If Traction Switch parameter does not change state, go to next step.
  4. Turn ignition off. Disconnect traction control switch connector. Turn ignition on, with engine off. Using scan tool, observe Traction Switch parameter. If scan tool displays OFF, go to step  7. If scan tool does not display OFF, go to next step.
  5. Test traction control switch signal circuit for a short to ground. Repair circuit as necessary, then go to step  10. If condition was not found, go to next step.
  6. Inspect for poor connections at BCM harness connector. Repair as necessary, then go to step  10. If condition was not found, go to step  8.
  7. Inspect for poor connections at traction control switch harness connector. Repair as necessary, then go to step  10. If condition was not found, go to step  9.
  8. Replace BCM. See appropriate BODY CONTROL MODULE article in ACCESSORIES & EQUIPMENT. Go to step  10.
  9. Replace traction control switch. See TRACTION CONTROL SWITCH  under REMOVAL & INSTALLATION. Go to next step.
  10. Operate system in order to verify repair. If condition is not corrected, go to step  2.
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