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Home >> Chevrolet >> 2021 >> Traverse L >> Repair and Diagnosis >> External Pages >> Different car >> Section 55 (Antilock Brake System) >> Diagnostic Information and Procedures >> DTC P30EC >> Circuit/System Verification
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Circuit/System Verification

WARNING: This page is about a different car, the 2020 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition - On / Vehicle - In Service Mode
  2. Verify no other DTCs are set.
    • Go to next step: If no other DTCs are set 
  3. Replace the component:K160 Brake System Control Module
  4. Verify the DTC does not set.
    • If the DTC is set 

      Replace the component:K20 Engine Control Module

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