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.
System Components
- PTL drive unit (A).
Installed inside the LH trunk trim of the vehicle, it uses the gear motor to automatically open and close the trunk connected to the push rod. It is composed of ECU and drive unit, which is composed of drive bracket, gear motor, push rod and drive arm.
- Power latch assembly (A)
It delivers the trunk lid opening/closing signals to the power trunk module drive unit, and keeps the binding of the power striker shaft with the pawl switch input. It is composed of power latch and cinching actuator.
- Cinching actuator (A)
It delivers the trunk lid opening/closing signals to the power trunk module drive unit, and keeps the binding of the power striker shaft with the pawl switch input. It is composed of power latch and cinching actuator.
- SMK
Press the power trunk module button (A) on the SMK for over one second to open.
* There is no closing signal by SMK.
- Trunk inner switch (A)
It is installed on the trim inside the trunk and it cannot be operated while the trunk is closed.
With a closing switch input, the PTM unit transmits the trunk locking signal to SMK.
On receiving the signal, SMK performs FOB authentication at the bumper antenna. If registered FOB key is detected, it will search the interior area.
If all doors are closed and there is no FOB key inside the vehicle, SMK transmits the door locking command to DDM and trunk closing command to PTM.
DDM and PTM carry out the command to lock the doors and close the power trunk.
- Trunk glove box switch (within the Glove Compartment)
It is mounted in the passenger side glove compartment. It is used to limit power trunk open/close operation.
In other words, it cuts-off the trunk lid relay and prevents the P-Latch power from being supplied, and deactivates power trunk operation.
NO RELATED
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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.