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Home >> Cadillac >> 2021 >> CT4 V, 4WD >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Vehicle Access System >> Diagnostic Information and Procedures >> Door Lock Indicator Malfunction >> Circuit/System Verification
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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 S13D Door Lock Switch - Driver performs the Lock or Unlock commands and the lock indicator turns ON and OFF

    • If the S13D Door Lock Switch - Driver does not perform the Lock or Unlock commands 

      Refer to: Power Door Locks Malfunction 

    • If the indicator does not turn ON or OFF 

      Refer to: Circuit/System Testing - Test 1

    • Go to next step: If the S13D Door Lock Switch - Driver performs the Lock or Unlock commands and the lock indicator turns ON and OFF 
  3. Operate the component: S13P Door Lock Switch - Passenger - Lock Switch & Unlock Switch

    Verify the S13P Door Lock Switch - Passenger performs the Lock or Unlock commands and the lock indicator turns ON and OFF

    • If the S13P Door Lock Switch-Passenger does not perform the Lock or Unlock commands 

      Refer to: Power Door Locks Malfunction 

    • If the indicator does not turn ON or OFF 

      Refer to: Circuit/System Testing - Test 2

    • Go to next step: If the S13P Door Lock Switch-Passenger performs the Lock or Unlock commands and the lock indicator turns ON and OFF 
  4. A fault that is not currently present may have been caused by a intermittent condition.