Question about 2001 GMC Yukon XL
The drivers side window goes up and down but not the others. i think it might have to do with the window lock as it is all of the windows not just one. the window lock button is also loose on the drivers side. it sounds like they are trying to do something but they don't. when I bought the car used they said don't try to put down the passengar side back seat window as it is broken.
If they sound like they are trying to do something it's not the lock out switch . But to be sure pulling out the switch an testing for B+ voltage to and from the switch . Plus pull the other door switches to see if they have B+ voltage and good grounds would be the thing to do.. If you don't know how to check automotive electrical circuits your best bet , take it to a qualified repair shop .
Passenger Power Window Operation
The passenger power window switches incorporate window up and down relays. The relay coil feed and supply sides are powered through the RAP fuse supply voltage circuit. The normally closed contacts of each relay is connected to ground. The load side of each of the relays are connected to either side of the power window motor through the power window up and down circuits. The up and down relay control circuits are connected to the normally closed contacts of the passenger window switch. These contacts are wired in series with the power window master switch, through the power window master switch up and down signal circuits and then to ground when the power window master is placed in the up or down position. This allows for the up and down operation of the passenger power window from the power window master switch. The center pole of the passenger power window switch is also connected to ground and will energize the relay when placed in the up or down position.
Driver Power Window Operation
The driver power window is unique from the passenger power windows in that it does not use window up and down relays. The driver power window is operated directly from the power window switch.
The normally closed contacts of the switch are connected to ground and the center pole is connected to the RAP fuse supply voltage circuit. By placing the left power window switch in the down position, voltage is applied to the power window motor left front down circuit and to the power window motor. The other side of the power window motor is connected to ground through the normally closed contacts of the left power window switch through the power window motor left front up circuit and drives the window down.
By placing the left power window switch in the up position the polarity of the motor is reversed and the motor drives the window up.
Has circuit breaker for B+ power
• PWR WDO CB 25A (fuse block) (System power for left and right windows 2-door vehicles. System power for LF and LR windows 4-door vehicles)
• PWR WDO CB 25A (IP wiring harness junction block) (System power for RF and RR windows 4-door vehicles)
Could be passenger door switch .
Posted on Aug 21, 2017
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Posted on Jan 02, 2017
SOURCE: 2002 gmc sierrra
Check internal wiring harness inside the actual door, test the wire leads to each actuator and make sure they are getting power, I'd be willing to bet they aren't, for whatever reason
Posted on Aug 06, 2008
3rd row, you simply pull the lever which makes the back fold down and then grip the handle located on the bottom and pull toward you slightly hard. They are heavy so it seems like they aren't coming out, just pull hard. second row, you flip all the way up and push with them standing up and they come unhooked. Good Luck! I didn't have any problems, except they are at least 50+lbs!
Posted on Jan 07, 2009
There is a widespread problem with electrical shorts with the seat warmers. I bought the extended warranty through CarMax and theyy fixed it. Retail repair cost on that would have been $900+. It may be covered by GMC via a recall, but only if you raise enough hell.
Posted on May 05, 2009
Under the drivers seat at the rear is a black plastic cover. Remove the cover , it is over the main harness to the seat. Unplug the seat harness and inspect the connection. I see alot of these get knocked loose or get corroded. Good Luck.
Posted on May 14, 2009
Mark your drive shaft coincidenly with the rear axle and tranny. Remove drive shaft. Press out the old u joints and press in the new. You will need a torch for heat and a lot of patience. Have fun!
Posted on Jun 20, 2009
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