GM Repair Questions? Ask a Mechanic for Answers ASAP
Hello, I am Daniel. I may ask you questions, to better answer you. Please let me know if you have any other questions before you Accept.
Is it moving at all?
yeah it moves back and also forward but only a little bit
Can you use a volt meter
the roof will go all the way back until u hear a horrible noise tell u u went to far back
yes i can
is there a way to reset a power sunroof?
ok the switch is obviously working and the Motor
The reset is in the gears. No electrical reset. after the rotation its reset in position. Your motor or th elinkage to motor is what is being affected then.
is there anyway to close it manually
would having the sunroof go to far on the track causing the horrible noise be the cause of this problem?
SUNROOF DESCRIPTION AND OPERATION POWER SUNROOF SYSTEM COMPONENTS The power sunroof system consists of the following components:
POWER SUNROOF OPERATION The sunroof control module has two power circuits; the Sunroof 20 A fuse and the RAP supply voltage. The Sunroof 20 A fuse is hot at all times suppling battery positive voltage for the operation of the sunroof motor control circuits. The RAP supply voltage is for the sunroof control module logic circuitry and is controlled from, or by the bcm, depending on the wiring configuration. The power sunroof will operate with the ignition switch turned to Accessory or RUN suppling RAP supply voltage. Once the ignition switch is turned to OFF the sunroof will continue to operate until any door is open or when the Retained Accessory Power (RAP) has timed out. For a description and operation of the RAP operation, refer to Retained Accessory Power (RAP) Description and Operation in Accessory Delay Module.Use the rocker type sunroof switch to command the sunroof to :
Pressing the sunroof switch rearward, the sunroof glass will slide from:
Pressing the sunroof switch forward, the sunroof glass will slide from:
EXPRESS OPEN The express open will operate from the closed or partially open position. To express open the power sunroof, turn the ignition to RUN. Press the sunroof switch rearward once. This will apply the sunroof switch low reference to the sunroof switch open signal circuit, 5 volt reference input, pulling it to 0 volts . The 0 volts input to the sunroof control module indicates an express open request. From the closed position, the sunroof control module will control the motor to lower the rear of the sunroof glass slightly and then slide it rearward between the roof and the headliner, along with the sunshade. The wind deflector will raise upward. To stop the sunroof glass in a desired position other than to the express open position, press the sunroof switch, in either direction, to stop the movement.TO CLOSE To close the power sunroof, turn the ignition to RUN, and from the:
TO VENT OPEN To open the power sunroof to the vent position from the closed position, turn the ignition to RUN. Press and hold the sunroof switch forward. This will apply the sunroof switch low reference to the sunroof switch close signal circuit, 5 volt reference, pulling it to 0 volts . The sunroof switch close signal input to the sunroof control module needs to have constant 0 volts applied, switch pressed, to allow the sunroof control module to control the sunroof motor to tilt the rear of the glass upward to the full vent position.SUNROOF MOTOR The sunroof has a bi-directional motor. When the sunroof motor is not operating both control circuits are grounded. When the sunroof motor drives the sunroof glass in the direction from the vent position to the open position, the following occurs:
When the motor drives the sunroof glass in the direction from the open position to the vent position, the following occurs:
The sunroof motor understands when it has driven the sunroof glass to the vent, close and full open positions based on the internal limit switches within the sunroof control module. The sunroof control module interprets the limit switch combinations and controls the sunroof motor to soft stop the sunroof glass at the positions. The sunroof control module is equipped with a timer circuit which stops the operation of the sunroof motor after 8 seconds
Yes the noise is probably the linkage bound up.
how can fix that?
Im not sure i have the procedure to show you. let me look. one moment thanks
the roof has only gone that far only once could the linkage get bound up that easliy
NOTE: Refer to Fastener Notice in Service Precautions.Tighten Tighten the sunroof motor/actuator screws to 3 N.m (27 lb in) .
align the splines starts the install procedures.
Nothing with diagrams though. sorry. I am hoping the best case senerio for you. It will be hard to find an assembly for just the linkage. and replaceing it whole would be about the smae cost.
how much would it cost to fix roughly?
well you have two directions you can go, after market and it would be cheaper around 600. Dealer twice that much. Those are ruff guestiments though.
ok thanks i appreciate the advice and directions
Before you do anything take it to the local window tenting shop. see if one of those guy's can work the linkage out for you. the dealer wouldnt mess with it but they would. and are alot cheaper.
Your very welcome.
one more thing how do i work out the linkage
you would have to remove trim and get to it. and it would be a matter of using your skills and long screw drivers and needle nose pliers to get it back on track
ok thanks again