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Home >> Chevrolet >> 2021 >> Blazer L >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Vehicle Access System >> Diagnostic Information and Procedures >> DTC B3938 >> Circuit/System Verification

Circuit/System Verification

  1. Ignition - On/Vehicle - In Service Mode
  2. Operate the component: S13D Door Lock Switch - Driver - Lock Switch & Unlock Switch

    Verify the component works as specified: M97 Fuel Fill Door Lock Actuator = Lock & Unlock

    • If the component does not work as specified 

      Refer to: Circuit/System Testing

    • Go to next step: If the component works as specified 
  3. All OK.
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