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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 246 (Power Door Lock System And Release Systems - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Power Door Locks Malfunction (Coupe With UTT) >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify the scan tool Driver Door Lock Switch parameter changes from Inactive to Lock and Unlock when pushing the appropriate switch on the S13D Door Lock Switch-Driver.
    • If the parameter does not change 

      Refer to Circuit/System Testing - Driver Door Lock Switch Malfunction.

    • If the parameter changes 
  3. Verify the scan tool Passenger Door Lock Switch parameter changes from Inactive to Lock and Unlock when pushing the appropriate switch on the S13P Door Lock Switch-Passenger.
    • If the parameter does not change 

      Refer to Circuit/System Testing - Passenger Door Lock Switch Malfunction.

    • If the parameter changes 
  4. Verify both vehicle doors LOCK and UNLOCK when commanding the All Doors Lock/Unlock with a scan tool.
    • If only the driver door LOCK or UNLOCK functions do not work 

      Refer to Circuit/System Testing - Driver Door Lock Malfunction.

    • If the passenger door LOCK or UNLOCK functions do not work 

      Refer to Circuit/System Testing - Passenger Door Lock Malfunction.

    • If both door LOCK and UNLOCK functions do not work 

      Refer to Circuit/System Testing - Both Door Locks Inoperative.

    • If the LOCK and UNLOCK function for both doors works 
  5. All OK.
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