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Can you help with power windows?

I changed the 30 amp fuse and tested the master switch on the drivers side door. No switch on any door works the windows. The power locks and rear sliding window work.

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Check the window's power and ground to the master switch. Pull off the connector that goes to the window controls. Use a test light or voltmeter. With key in ON, one wire to the connector should be a hot wire, battery voltage. If no hot wire, check for a broken wire or wires in the door opening, where wires may get chaffed and break. If no breaks, make sure the 30 amp fuse has power to it with key in on. If fuse has power, but no power at the master switch, there is a break in the wire from fuse panel to the master switch.
If you found a hot wire to the switch, then check the ground wire for the windows, it originates at the master switch (probably a black wire) and travels back through the door opening, and then to a nearby ground source. On the electrical connector, put the voltmeter positive lead on the power terminal, and the voltmeter negative on the ground terminal. The key must be in on. If power and ground are both good, you will see battery voltage on the voltmeter. If you found a hot wire by grounding the negative voltmeter lead to a real ground point while probing the power wire, but don't have voltage when probing the power wire terminal and ground wire terminal, then the ground must be lost for the windows. With no ground wire working, no windows will work.

Post back with what you find. Good luck. For more help, please include make, model, and year.

Posted on May 01, 2015

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What type of vehicle? Does the drivers window work?

Posted on May 01, 2015

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1 Answer

This is the fuse panel cover for a 1999 1500 Chevy Silverado which fuse controls the driver side window switch


The picture is too dark. Usually the power windows, all of them, are protected by a 25 or 30 amp circuit breaker. It is usually found in the instrument panel fuse block, under the dash on the driver's side. The circuit breaker is a matchbook size "fuse", usually silver colored. A circuit breaker automatically resets if it gets tripped by like a short.

If you pull off the master switch, the driver's side switch, you should have one hot wire with key on. The power wire and the ground for the windows are both in the driver's master switch. This is where you begin testing the power windows if none are working. Check for a hot wire, and check the ground wire- use a multi-meter.

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Right rear window does not work


All power originates/passes through the master control switch on the drivers door panel. Start by popping the drivers switch and with key on check power going to & through the master switch especially the switch that raises/lowers the window in question. Surely you've done checked the fuses and or relays? Hope this helps.

Aug 16, 2014 | 2004 Pontiac Grand Prix

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Doorlocks dont work except from passenger side. mirrors dont work. windows dont work from anywhere


First, check all fuses to make sure that none are blown.

If the door lock switch works on the passenger side, then the drivers side door lock switch is probably faulty. Use a multi-meter to test the Drivers Side Door Lock Switch (Black and Pink/Light Green wires unlock the vehicle, and the Black and Pink/Yellow wires lock the vehicle)
If the switch is tested and found to be operating properly, you may have a faulty Body Security Module or Drivers Side Door Lock Actuator.

If neither of your Power Mirrors are working, you probably have a faulty Exterior Rear View Mirror Switch, Power Mirror Module, or blown Central Junction Box Fuse.

If none of your Power Windows are working, you probably have a faulty Accessory Delay Relay or a blown fuse in your Central Junction Box or a faulty Master Window Adjust Switch (all of the Power Window Switches feed through this Master Window Switch). If the Power Windows didn't stop working at the same time, you may have faulty Window Adjust Switches, or faulty Power Window Motors, this is very unlikely though. It would also be a good idea to inspect the wiring for any obvious damage.

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1 Answer

None of my electric windows work. Checked the fuse. Could it be a relay?


There is no relay, and there is no fuse for the power window circuit, there is a 30 amp circuit breaker in the fuse panel under the dash and the circuit breaker should be marked WDO on the fuse panel.

First check to see if there is power from the 30 amp circuit breaker to the master window switch on the driver door, and if power is getting through the master window switch.

If there is power to and through the master window switch (use a test light or a power probe would the best tool for the job), then there is most likely a broken wire inside of the weather boot that is between the door and the body of the vehicle, and the wires run in from the door through the inside of the weather boot and then through a hole on the body of the vehicle that is located behind the driver side kick panel, and the wires should be inspected from the wire connector behind the driver side kick panel out to the master window switch on the driver door for any broken wires. If you do find any broken wires be certain that they are soldered back together and do not use wire connectors to repair the wire(s) unless you want to repair the system again in about a month or two.

Here are two wiring diagrams (if the vehicle has rear vent windows then use the upper diagram) of a typical GM power window circuit for that year to help assist you, and let me know if you require any further assistance.


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Aug 06, 2010 | 1983 Oldsmobile Delta 88

1 Answer

Trouble shooting power windows- all 4 windows stop working at the same time. please help


you need to locate the power window fuse from using the owners manual,and test the fuse on both sides with a test light and key on,if no power replace fuse,if you have power on both sides of fuse,go to each door and try each switch,if they work you will need a master switch in the drivers door

Dec 09, 2009 | 2004 Buick Century

1 Answer

Passenger side window will not go back up


No.The drivers master power switch is probably bad.YOu will have to perform a test on the three other switches on the master. Check for power and ground when you push each putton.If the master switch fails the test you need a new master switch.

Aug 01, 2009 | 2004 Toyota Camry

1 Answer

Power window blows fuse


Problem fixed as follows:
Purchase a package of five 30 amp ALC type fuses. Replace blown fuse #8 (30 amp). Perform the following test to determine if the problem is isolated to the driver-side front window.
-One at a time, (i.e. only push one window switch button at a time) operate each of the other three windows (passenger side and rear driver side), to determine if the problem is occuring only on the driver side window. If any of them blows the fuse, replace it with a spare and proceed to test the next window. Repeat for each of the three windows. The process described below may also resolve the issue on the other windows if any of them blew the fuse during this test.
-Now, operate the switch for the driver side window. It is expected to work for a brief period (<1sec), but may very quickly blow fuse #8. Replace fuse #8 with one of the new 30 amp ALC fuses.
Remove the door panel, by sliding the speaker forward and removing the three white clips on the bottom of the panel. Also, pry out the screw clip in the panel well, just to the rear of the switch assembly, and remove the plastic bracket that holds in the switch assembly. The panel can now be lifted off.
To access the window mechanism, remove the tape over the oval cutouts near the top. Also, temporarily pull back the white plastic cover over the bottom of the door. Disconnect the white electrical connector near the center of the door (has only a red and black wire for the regulator motor). Using a small battery (motorcycle battery) and jumper leads test the mechanism's operation by connecting the battery directly to the motor wires. Use insulated test clips on the male connector and be careful not to short the clips together. The window mechanism should operate, and by interchanging the jumper wires (reversing battery power polarity), you can make the window go both up and down. Only do this for brief periods of time, as the motor circuit is now uprotected, i.e. there is no fuse in this test circuit. If the movement of the glass seems strained over part of the travel path, apply WD-40 lubricant to the metal rotating pivot point. Also apply silicone spray to the rail guides for the sides of the glass (with the window in the up position) and to the metal horizontal tracks and plastic wheels near the top of the mechanism. Also, spray some silicone lubricant along the bottom of the window on the outside, just above the rubber stripping, and operate the window a couple of times. An up and down test should now result in very smooth and even window movement. Reconnect the motor power wire to its mating connector, replace the tape and white plastic cover, and then replace the door panel. The mechanism should work smoothly, and the fuse should not blow. Total cost: $3.03 for fuses and a little WD-40 and silicone spray which you probably keep on hand.

May 17, 2009 | 1994 Volvo 940

1 Answer

Toyota Camry power windows not working from master switch


Their are two fuses that power this system. One is a 15 amp gauge fuse and the other one is a 30 amp main power fuse. You can also check the power main relay, your ignition switch, or i could possibly be a fault in the wiring

Mar 11, 2009 | 1996 Toyota Camry

1 Answer

Rear side windows


This may be just a case of inadvertently hitting the window lock out n th driver door window switch by mistake. Check that first. Here's some background on window operation

Principles of Operation
The driver power window regulator motor is controlled directly by the master window/door lock/unlock switch (and its integrated "auto down" module). Power is supplied to the power window relay and the master window/door lock/unlock switch, and the passenger power window switch when the SEC/timer module grounds the coil side of the power window relay. The SEC/timer module will ground this relay when the ignition is in the ON position and will remain energized for approximately 15 minutes or until the driver or passenger door is opened.
The driver power window regulator motor is a reversible motor that is operated by applying power and ground to the motor leads to lower the window, and then reversing polarity on those leads to raise the window.
The passenger power window regulator motor is controlled directly by the passenger power window switch and can also be controlled by the master window/door lock/unlock switch. Power is supplied to the power window relay and the master window/door lock/unlock switch, and the passenger power window switch when the SEC/timer module grounds the coil side of the power window relay. The SEC/timer module will ground this relay when the ignition is in the ON position and will remain energized for approximately 15 minutes or until the driver or passenger door is opened.
The passenger power window regulator motor is a reversible motor, which is operated by applying power and ground to the motor leads to lower the window, and then reversing polarity on those leads to raise the window.
The power rear quarter glass is also directly controlled by the master window/door lock/unlock switch. The power rear quarter glass power latches also utilize reversible motors. The power rear quarter glass power latches are operated by applying power and ground to the motor leads to open the window, and then reversing polarity on those same leads to close the window.
Symptom Chart Condition Possible Sources Action
  • All windows are inoperative
  • BJB Fuse:
    • F20.
  • Circuit.
  • Power window relay.
  • Front door power window switch.
  • GO to Pinpoint Test A .
  • Single power window is inoperative
  • Front door power window switch.
  • Front door power window regulator.
  • Circuit.
  • Driver door power window switch.
  • GO to Pinpoint Test B .
  • Vent power window is inoperative — quarter window glass power latch
  • Circuit.
  • Quarter window glass switch.
  • Quarter window glass power latch.
  • GO to Pinpoint Test C .
  • The one touch down feature is inoperative
  • Master window regulator and door lock switch.
  • INSTALL a new master window/door lock/unlock switch. REFER to Switch—Master Window Door Lock/Unlock .
  • The back window will not defrost
  • CJB Fuses:
    • F30 (10A).
    • F32 (20A).
    • F34 (20A).
  • BJB Fuse:
    • F27 (45A)
  • Circuit.
  • Heated back window switch.
  • SEC/timer module.
  • Rear window defrost relay.
  • GO to Pinpoint Test D .
  • The back window defrost will not shut off automatically
  • SEC/timer module.
  • Circuit.
  • Rear window defrost relay.
  • GO to Pinpoint Test E .

Jan 28, 2009 | 1999 Mercury Villager

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