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krista sanavongsay Posted on May 29, 2014

Why wont windows and lock work? could it be the front ecu?

The power windows do not work at all. The driver side lock button doesnt work. Master switch, relay, n wiring have been replaced and checked. Door seems to be getting no power. Is it the front ecu? The passenger side lock button works but doesnt unlock driver side and no window buttons work.

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Mercy Alone Ministries Inc.

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  • Posted on Jul 13, 2014
Mercy Alone Ministries Inc.
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Check inside of door where wiring comes thru for broken wires ,ECU doesn't control windows or door locks. You didn't state what model vehicle you own. But opening and closing door on drivers side causes broken wires on numerous vehicles over the years, most makes and models. Split boot and check all wires inside for breakage.

5 Related Answers

Anonymous

  • 1 Answer
  • Posted on Dec 07, 2008

SOURCE: 2004 Jeep Grand Cherokee driver side power windows do not work

I had the same problem with now power to windows, mirrors and seat. The common soulution is the orange and or black wire in the boot have broken between the door and post.

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Anonymous

  • 1 Answer
  • Posted on Dec 18, 2008

SOURCE: Power windows, door locks and mirrors inop.

Sounds familiar - I pulled the rubber boot back and found the black wire was broken. I stripped the wires and put on a couple bullet connectors (terminators) and all is good. Just wish I would have seen this post before I took the door panel off... Oh well...

Anonymous

  • 4 Answers
  • Posted on May 11, 2009

SOURCE: 2005 Chrysler Pacifica passenger doors have no power

If your alarm went off, it could be that someone had tried to break into your car. They most likely may have cut some of the wires inside your door with what ever device they may have been using. Look for evidence between the bottom of the windows and doors where the problem is. If not, then it is possible that your automatic window assemblies are malfunctioning. Do you hear the motors run on the windows when you go up or down with the switch? I also have a Pacifica, 2005, however no window problems yet.

Good Luck,

Ray

stevenhurc

Steve Hurc

  • 459 Answers
  • Posted on Jul 20, 2009

SOURCE: Camry 1996 automatic power lock doen't work, but windows work.

if you can here relays when unlocking/locking check for power at door lock actuators inside doors, if you have power on lock/unlock and good earth from connector actuators are faulty.
if no power on test light when operating check output from central door lock module while operating, none coming out of module then it might need replacing.
check 30Amp power fuse for main relay under bonnet (which goes to pin 8 white/blue on module)and 10Amp gauge fuse in cab(pin 1 blue/red on module),pin 15 is also power when relay is on(red/blue) with test light, and module/ actuators.
check outputs from module pin 3 & 4
blue/red
blue/black
that go to door locks

Anonymous

  • 1 Answer
  • Posted on Jul 13, 2010

SOURCE: On my 2003 Saturn Ion, Driver Side window controls not working

Did you ever solve this problem with your windows? My 03 Ion 2 is doing the same thing. We think it's a wiring issue. Any suggestions? Thanks, Kristen N!

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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 .

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