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Home >> Cadillac >> 2018 >> CT6 Plug-In >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Power Door Lock System And Release Systems >> Diagnostic Information and Procedures >> DTC P169D >> Circuit/System Verification

Circuit/System Verification

  1. Vehicle in Service Mode.
  2. Verify the operation of the fuel filler door when commanding the fuel door lock actuator to UNLATCH by pressing the refuel request switch.
    • If the fuel door lock actuator does not UNLATCH 

      Refer to Circuit/System Testing

    • Go to next step: If the fuel door lock actuator does UNLATCH 
  3. All OK.
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