Power sliding door doesn't work!

You say the driver window works? wouldn't be a main fuse or fusible link then -driver door locks and window wouldn't work either. Each door has a module inside (computer) . The driver door has a circuit breaker power feed an a fuse DDM fuse 10amp located in rear junction block circuit breaker is located in under hood maxi fuse block. The circuit breaker also feeds battery voltage to the other door modules too. PDM - passenger door module fuse 10amp located in the instrument panel fuse box and the RDM - rear door module RDM fuse 10amp located in the rear fuse box - under the back seat.

Each power window is connected to a permanent magnet motor. The motor raises or lowers the glass when the door module applies voltage to the motor. The direction the motor turns depends on the polarity of the supply voltage provided by the associated door module. The 2 front doors have their own separate modules. The rear seat contains a single module, which controls both of the rear power windows.
A serial digital communications link, called the simple bus interface, is used for communications between door modules and the driver's door power window switches. The use of serial digital communications allows the use of a single wire to convey switching information between the power door lock switch and the driver's door module (DDM). The serial communication is also used in order to transmit switching information from the DDM to the other 2 door modules.
The door modules apply battery voltage of the correct polarity to the respective window motor when any local, or power door lock switch, UP switch is operated, driving the window up. Battery voltage is applied to the respective window motor in the opposite polarity when any local, or power window switch, DOWN switch is operated, driving the window down.

Driver Door Module (DDM)
The driver's door module (DDM) directly controls the driver's door window motor and the express down window feature. The DDM sends window UP/DOWN messages received from the power door lock switch to the passenger door module (PDM) and to the rear door module (RDM) over the simple bus interface (SBI) line. The DDM also contains a class 2 data link which communicates with the other vehicle system modules. The left front power door locks and the outside power mirror are also controlled through the DDM.
Passenger Door Module (PDM)
The passenger door module (PDM) controls the passenger's door window motor. The PDM controls the passenger's door window directly from the right front power window switch or from instructions over the simple bus interface (SBI). The right front power door locks and the outside power mirror are also controlled through this module.
Rear Door Module (RDM)
The rear door module (RDM) controls both of the rear door window motors. The RDM controls the rear windows directly from the rear door window switches or from instructions over the simple bus interface (SBI).

Are there fuses under hood causing this? Without looking at wiring diagrams to see what all is involved in the power window electrical circuit would be guessing as to what the problem is . An looking at a wiring diagram I see a circuit breaker supply's B+ voltage for the window's . Circuit breakers very rarely go bad . I would look for broken wire's inside the rubber flex boot from the body to the door. Or maybe the power window control module is bad . If you know nothing of automotive electrical systems , wiring diagram's ,an how to test with a DMM - digital multi-meter ,your best bet mite be to take it to a qualified repair shop .

The Acadia's battery is beneath the floor behind the front passenger seat.
Slide that seat all the way forward, then open the rear passenger door. If you've got a floor mat directly behind the front seats, it will have to be moved aside. There is a panel on the floor with one screw holding it closed. Remove this panel to access the battery compartment.

You need to test the parts. Does the switch have continuity when actuated? If yes, check the wires for continuity. Will the actuator work when you apply power directly to it? If yes, test the wiring.

Do you know anything about automotive electronic's ? Serial data Communication network ? Electronic module's inside the vehicle doors , communicate commands ! No relay ,no fuse .
If the passenger mirror is selected and a direction switch is activated, the DDM sends a serial data message to the PDS indicating that the passenger mirror was selected and the direction to be commanded. The PDS will then supply battery voltage and ground to the appropriate control circuits for the direction selected.
DDM - driver's door module

Door Lock System Components
The power door lock system consists of the following components:
• Driver door module (DDM)
• Passenger door module (PDM)
• Door lock relay--Located in the instrument panel (I/P) fuse block and controls the locking of the rear doors.
• Door unlock relay--Located in the I/P fuse block and controls the unlocking of the rear doors
• Body control module (BCM)
• IP BEC
• Reversible door lock actuators in each door

Power Window System Components
The power window system consists of the following components:
• Driver door module (DDM)
• Body control module (BCM)
• Passenger door module (PDM)
• Rear door power window switches
• Power window motors in each of the doors (circuit breaker protected)

Your best bet , take it to a qualified repair shop that has a diagnostic scanner that can pull code's an view input data form these systems . There is one circuit breaker for the window's an fuse's for the lock's . I would think a data network problem . But that would be a guess , without testing anything is possible on these .

If neither the lock or unlock works, first check the power lock fuse(s). If the fuses are good, then have the relay tested. You can call your dealer to find out where these components are located on your specific vehicle.

there is a motor that drives the doors just like the motors used for windows. they do go bad.you will need to inspect the motor it is located behind the wall panel behind the sliding door. you may have to remove some bolts for seat belts and there may be some screws but most of the panel is held on with snap clips. take your time and don't break them if you can. when reinstalling be sure you are lined up before forcing the panel it will just bend the clips. once in there try tapping on the motor lightly with a small hammer. then try it it may start working again. I've seen it many times. if not maybe get one from a salvage yard. saves a lot of money. good luck

Verify the wiring harness which passes under plastic step & carpet at front passenger side. This wiring harness goes from the firewall to the pillar on the right side and some have crimped connectors in them to act as junction between two or more wires (ususlly the 12volt feed), which deteriorate with time, especially with Salt & Water. Then the electric sliding door stops working and even driver the electric seat can loose power.

let me assume u have not checked the fuses, meaning in al places the fuses are!, try,under the hood,under the dash and behind the panel behind the rear seat in the trunk, look in your owners manual for these locations and the particular fuse u have trouble with. good luck,hope we helped!

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