power lft gate motor
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Cadillac SRX First Generation Forum - 2004 - 2009 Discussion, power lft gate motor in Cadillac SRX Forums; My power lift gate has gone on strike, I have checked the fuses and I can hear a humming noise ...
  1. #1
    ccmarshal is offline Cadillac Owners Member
    Automobile(s): srx
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    power lft gate motor

    My power lift gate has gone on strike, I have checked the fuses and I can hear a humming noise from the area that the motor is located. I need to know how to remove and test my power gate motor on my 2008 SRX. Any help would be appreciated.

    Paul

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  3. #2
    glake89's Avatar
    glake89 is offline Cadillac Owners Connoisseur
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    Re: power lft gate motor

    From the SM-
    "The motor assembly is located at the left rear of the vehicle and contains the liftgate motor, liftgate clutch, hall effect sensor, and the open switch. The motor assembly also provides means to open the liftgate by way of a gear set. During operation, the liftgate motor drives the gear set that raises and lowers the liftgate through a strut rod connected to a lever which is part of the gear set. The liftgate module applies voltage and provides ground to operate the liftgate motor and clutch. When liftgate operation is requested, the liftgate module engages the clutch and begins driving the motor. If a fault were to occur that requires the disabling of liftgate functions, the liftgate module would release the clutch, allowing manual operation of the liftgate. The liftgate module determines the position of the liftgate based on the hall effect sensor and open switch. The liftgate module applies voltage and provides a ground path to power the hall effect switch. As the liftgate is in motion, the hall effect switch rotates, alternately pulsing the applied voltage on each of the 2 hall effect signal circuits. The liftgate module determines the position based on the number of hall pulses, or counts, received. When the liftgate is fully open, the open switch is closed. This provides an input to the liftgate to indicate the liftgate has reached its full open position."

    To remove the left trim panel, 1 screw at hold down bezel near front of panel, then remove side door trim that overlaps, then same at rear hatch opening sill plate and upper trim. After you get to the motor and gear assembly, if you can't find anything mechanically wrong, PM me and I'll send a PDF for diagnosing electrical faults.
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  4. #3
    Cadillac Cust Svc's Avatar
    Cadillac Cust Svc is offline Cadillac Customer Service
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    Re: power lft gate motor

    Quote Originally Posted by ccmarshal View Post
    My power lift gate has gone on strike, I have checked the fuses and I can hear a humming noise from the area that the motor is located. I need to know how to remove and test my power gate motor on my 2008 SRX. Any help would be appreciated.

    Paul
    Hello Paul,

    I see that glake89 has offered great advice to your situation. Let me know if you follow these steps and are able to solve your issue. I can be reached via private message if you want to discuss anything further or have other questions and concerns.

    Sincerely,

    Laura M.
    Cadillac Customer Care

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