Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSBUICK2013REGAL TURBO PREMIUM, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 164 (POWER DOOR LOCK SYSTEM AND RELEASE SYSTEMS)DIAGNOSTIC INFORMATION AND PROCEDURESPOWER DOOR CHILD LOCK MALFUNCTIONCIRCUIT/SYSTEM TESTING
2013 Buick Regal Turbo Premium, Standard Trans
Circuit/System Testing
2013 Buick Regal Turbo Premium, Standard TransSECTION Circuit/System Testing
WARNING: This page is about a different car, the 2012 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
Child Security Door Lockout Inoperative
- Ignition OFF, disconnect the KR113 rear door handle disable relay.
- Test for less than 10 Ξ© between the ground circuit terminal 1 and ground.
- If greater than the specified range, test the ground circuit for an open/high resistance.
- Connect a test lamp between the control circuit terminal 3 and ground.
- Ignition ON, command the child security lockout by pressing the window lockout switch on the S79D driver window switch. The test lamp should turn ON and OFF when changing between the commanded states.
- If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K9 BCM.
- If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the K9 BCM.
- If all circuits test normal, test or replace the KR113 rear door handle disable relay.
Child Security Door Lockout Malfunction
- Ignition OFF, disconnect the harness connector at the appropriate rear A23 door latch assembly.
- Test for less than 10 Ξ© between the ground circuit terminal listed below and ground:
- A23LR door latch assembly-left rear terminal 8
- A23RR door latch assembly-right rear terminal 3
- If greater than the specified range, test the ground circuit for an open/high resistance.
- Test for greater than 10 V between the signal circuit terminal listed below and ground:
- A23LR door latch assembly-left rear terminal 9
- A23RR door latch assembly-right rear terminal 4
- If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K9 BCM.
- Connect a test lamp between the control circuit terminals listed below:
- A23LR door latch assembly-left rear terminal 7 and terminal 4
- A23RR door latch assembly-right rear terminal 2 and terminal 9
- Command the child security lockout by pressing the window lockout switch on the S79D driver window switch, the test lamp should briefly illuminate while changing between the commanded states.
- If the test lamp is always OFF, test either control circuit for an open/high resistance between the connector and the circuit splice.
- If all circuits test normal, test or replace the rear A23 door latch assembly.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.