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Home >> Buick >> 2021 >> Envision Essence, AWD >> Repair and Diagnosis >> Brakes >> Traction Control >> Antilock Brake System >> Diagnostic Information and Procedures >> DTC C127E >> Circuit/System Verification
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Circuit/System Verification

  1. Verify no other DTCs are set.
    • Go to next step: If no other DTCs are set 
  2. Control Module = Ambient Air Temperature.
  3. Under normal operating conditions: Verify DTC C127E is not set.
    • If the DTC sets 

      Replace the component: K160 Brake System Control Module

    • Go to next step: If the DTC is not set 
  4. All OK.
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