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.
Driver Door Module (DDM): Notes
Driver Door Module (DDM) is integrated in the CAN system. It communicates with BCM, SMK, SJB, PSM, and ADM via CAN communication while performing safety power window operation.
Operate the buttons of DDM located on the inner side of the driver side door to perform any functions related to power windows, electric mirror, and door lock/unlock.
Its main functions are as follows:
- Controls up/down operation of 4 power windows, respectively.
- Locks/unlocks the central door.
- Controls the outside mirror fold/unfold.
- Operates the outside mirror (up/down and right/left).
- Automatically lowers the outside mirror while reversing (Auto Reverse).
- Memorizes and recalls the mirror position using memory switch.
- Controls interior lamps.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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