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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Power Door Lock System And Release Systems >> Diagnostic Information and Procedures >> Power Door Locks Malfunction >> Circuit/System Verification

Circuit/System Verification

  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 all vehicle doors lock and unlock when commanding the All Doors Lock/Unlock with a scan tool.
    • If only the driver door does not lock and unlock 

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

    • If one or more passenger doors do not lock and unlock 

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

    • If all doors do not lock and unlock 

      Refer to Circuit/System Testing - All Door Lock Inoperative.

    • If all doors lock and unlock 
  5. Command all doors to UNLOCK with a scan tool.
  6. Verify all doors to LOCK when pressing the driver door lock plunger down flush with the driver door panel.
    • If the door LOCK function for all doors do not work 

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

    • If the LOCK function for all doors works 
  7. Command all doors to UNLOCK with a scan tool.
  8. Verify all doors to LOCK when pressing the driver door lock plunger down flush with the driver door panel.
    • If the door LOCK function for all doors do not work 

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

    • If the LOCK function for all doors works 
  9. All OK.
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