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Power window main switch, a component of CAN, performs CAN communication with BCM, seat ECU, tilt ECU, passenger side power window switch and it also performs LIN communication with switch module and safety ECU. Driver controls driver side power window switch button located inside of the driver side door to operate power window, mirror, door lock and unlock.
Check BCM input/output value of each position of DDM or ADM when you inspect the module whether faulty or not.
If the operation of DDM or ADM is abnormal, replace DDM or ADM.
Select model and BCM menu.

Fig 1: Diagnosis Function Screen Display - Body Control Module
Courtesy of HYUNDAI MOTOR CO.
Select "DDM" or "ADM".

Fig 2: "DDM" Or "ADM" - Screen Display
Courtesy of HYUNDAI MOTOR CO.
Select "Current data".

Fig 3: "Current Data" - Screen Display
Courtesy of HYUNDAI MOTOR CO.
Select "Driver window switch" or "Assist window switch".

Fig 4: "Driver Window Switch" - Screen Display
Courtesy of HYUNDAI MOTOR CO.
Check OFF- > ON when you operate window switch up & down.

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.

Safety Warning

Power Window Switch: Inspection: Notes