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.
Power Trunk / Liftgate Control Module: Testing and Inspection
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Liftgate Control Module Programming and Setup
The following service procedures require either a programming or a setup event performed for a complete repair.
Liftgate Control Module Replacement
If the liftgate control module is replaced, the following procedures must be performed.
1. Connect a scan tool to the vehicle and access SPS. Refer to Service Programming System (SPS) Service Programming System (SPS).
2. Perform the SPS function Liftgate Control Module - Programming and follow the on-screen instructions.
3. Perform the SPS function Liftgate Control Module - Configuration & Setup and follow the on-screen instructions. On the screen Control Module - Configuration & Setup Function(s), select both ECU Configuration/Reconfiguration and the appropriate ECU Setup.
4. Clear DTCs after completing the programming procedure.
Liftgate Control Module Reprogramming
Do not reprogram the liftgate control module unless directed by a service procedure or a service bulletin.
1. Connect a scan tool to the vehicle and access SPS. Refer to Service Programming System (SPS) Service Programming System (SPS).
2. Perform the SPS function Liftgate Control Module - Programming and follow the on-screen instructions.
3. Clear DTCs after completing the programming procedure.
Liftgate Calibration
If any portion of the power liftgate assembly is replaced, repaired or disassembled, perform the following liftgate calibration procedure:
1. Ensure that the rotary switch on the overhead console is set to Enable.
2. On the scan tool, select Body, select Liftgate Module, select Module Setup
3. Perform the scan tool LGM Open/Close Test
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.