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Home >> Chevrolet >> 2020 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 78 (Antilock Brake System - Except Hybrid (Hp4)) >> Diagnostic Information and Procedures >> DTC C0274 >> Circuit/System Verification

Circuit/System Verification

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  1. Ignition - On / Vehicle - In Service Mode
  2. Verify DTC C0186, C0187, C0196, C0287, C0710 is not set.
    • Go to next step: If none of the DTCs are set 
  3. Ignition/Vehicle - Off - Q5 Brake Pressure Modulator = Ambient Air Temperature
  4. Ignition - On / Vehicle - In Service Mode
  5. Under normal operating conditions:Verify DTC C0274 54 is not set.
    • If the DTC sets 

      Replace the component:Q5 Brake Pressure Modulator

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