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Home >> Oldsmobile >> 1999 >> Intrigue GL, 3.5 H >> Repair and Diagnosis >> External Pages >> Different car >> Section 4 (Anti-Lock Brake System - TCS-ETS - DELPHI DBC 7) >> Diagnostic Tests >> DTC C1238: Brake Thermal Model Limit Exceeded >> Testing Procedure

Testing Procedure

WARNING: This page is about a different car, the 1999 Buick Regal and 1999 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform DIAGNOSTIC SYSTEM CHECK  . After performing diagnostic system check, go to next step.
  2. Turn ignition on, with engine off. Using scan tool, display ABS/TCS-ETS DTCs. If any other DTC is set, go to appropriate DTC for diagnosis. If no other DTC is set, go to next step.
  3. Allow vehicle to cool for 30 minutes after being driven. Using scan tool, select ABS/TCS-ETS DATA LIST and read TCS-ETS STATUS. If brake thermal model is exceeded, go to next step. If brake thermal model is not exceeded, go to step  5 .
  4. Replace EBCM/EBTCM is there are no signs of mechanical brake problems.
  5. Check brake switch adjustment. Switch is located on brake pedal. See appropriate DISC & DRUM article. If switch is properly adjusted, see INTERMITTENTS & POOR CONNECTIONS  under DIAGNOSIS & TESTING. If switch is not properly adjusted, adjust brake switch.
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