Power windows not working

2003 MERCURY MOUNTAINEER
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NAS0151
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Electrical problem
2003 Mercury Mountaineer 6 cyl All Wheel Drive Automatic

I have replaced the window lift motor and the window switch to the front passenger door. The window still does not go up and down. I tried them in the rear door and they work there. If the switch in the driver door was bad, would that cause the window motor not to work? What else to I need to check?

All windows work from master switch and I have not seen any exposed wires. I have not checked with a meter, just visual. I was wondering if master switch could be bad, or if there is a fuse or relay to check?
Aug 15, 2010 at 8:30 PM
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STRAILER
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Hello,

Yes the master switch is most likely bad becasue the entire systems power runs through the main control switch located at the drivers door. Here is a guide that will give you an idea on how to test it.

https://www.2carpros.com/articles/electric-window-repair

and

https://www.2carpros.com/articles/how-to-check-a-car-fuse

and

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Here is how it will be to change the switch in your car and I will include the wiring diagrams so you can see how the system works. (below)


Please let us know if you need anything else to get the problem fixed.

Cheers, Ken
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Nov 10, 2017 at 3:42 PM
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WEST201
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i replaced master switch drivers door, fuse under dash circuit breaker under hood
Nov 10, 2017 at 3:42 PM (Merged)
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WEST201
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i will donate a nice donation if solution works , previously been ripped off so skeptical sorry nothing personal
Nov 10, 2017 at 3:42 PM (Merged)
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SATURNTECH9
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Do you have a mulitimeter to do some testing?We need to trouble shoot this problem to find it.
Nov 10, 2017 at 3:42 PM (Merged)
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WEST201
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yes
Nov 10, 2017 at 3:42 PM (Merged)
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SATURNTECH9
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Alright left side of engine compartment drivers side at the fender apron in the fuse box see if fuse number 6 60amp has power to both sides.Also behind the left side of the dash in the fuse box fuse number 17 15amp see if there is power to both sides of that fuse.Let me know what you find.
Nov 10, 2017 at 3:42 PM (Merged)
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WEST201
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yes power to both
Nov 10, 2017 at 3:42 PM (Merged)
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MARK MAKAREWICH
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Stopped working, checked sixty amp fuse under the hood checked the number seventeen underneath the steering wheel. I am not sure if it is the relay or not and or where it is.
Nov 10, 2017 at 3:42 PM (Merged)
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SATURNTECH9
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Ok behind the left side of the dash there will be a light blue wire with a black stripe coming out of thr fuse box it should have power with the key the run position.
Nov 10, 2017 at 3:42 PM (Merged)
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CARADIODOC
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All the windows are not working in both directions? If so, start by inspecting the wires between the driver's door hinges to see if any are frayed or broken.

Did they all stop working at the same time, or did anything noteworthy happen leading up to this?
Nov 10, 2017 at 3:42 PM (Merged)
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WEST201
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yes it has power
Nov 10, 2017 at 3:42 PM (Merged)
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MARK MAKAREWICH
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Nothing out of the ordinary just stopped working.
Nov 10, 2017 at 3:42 PM (Merged)
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SATURNTECH9
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Now key in the run position go to the master window switch on the drivers door see if the light blue wire with a black stripe has power going into the switch?
Nov 10, 2017 at 3:42 PM (Merged)
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MARK MAKAREWICH
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I have looked at the sixty amp fuse under the hood it is okay I believe the thirty amp relay under the hood is also working properly I am getting power to the fifteen amp fuse that people online say controls the power windows in the driver's compartment. I am also getting power to the blue wire with the black stripe leading into the drivers cluster I cannot figure out why my windows are not working.
Nov 10, 2017 at 3:42 PM (Merged)
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WEST201
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are you stumped too
Nov 10, 2017 at 3:42 PM (Merged)
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CARADIODOC
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Activate the driver's window switch while measuring the voltage on the black wire at that switch assembly. All voltage measurements should be done with that switch plugged in, to be accurate. Back-probe through the back of the connector next to the wires.
Nov 10, 2017 at 3:42 PM (Merged)
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WEST201
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yes there ias power on both ends of the wire
Nov 10, 2017 at 3:42 PM (Merged)
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ILITMAN
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2005 Mountaineer V8. Audio and accessory delay still work. I'm thinking its not the 60 amp fuse. Your thoughts?
Nov 10, 2017 at 3:42 PM (Merged)
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BMRFIXIT
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start checking fuses and than driver door harness
Nov 10, 2017 at 3:42 PM (Merged)
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WEST201
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please help
Nov 10, 2017 at 3:42 PM (Merged)
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SATURNTECH9
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Please understand the moderators on this website answer questions in our spare time so we dont always get right back to you.So now key in the run position at the drivers master window switcb with the passenger front window switch in the up position you should have power on the white wire with a yellow stripe.Same switch down position tan wire with a light blue stripe should have power.
Nov 10, 2017 at 3:42 PM (Merged)
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MARK MAKAREWICH
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Hey there Saturn Tech I'm having the same problem I have tested and have power up to the blue wire with the black stripe on it going into the master switch on the driver side
I don't have power to both sides starting back at the 60 amp fuse underneath the hood my tester light only comes on when I touch one side
Nov 10, 2017 at 3:42 PM (Merged)
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SATURNTECH9
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I really need you to start your own question it's way too confusing for the people going back and fourth answering the questions and the other users looking for answers to have more then one question per post.Even if it's a similar question.Thank you in advance for your understanding.
Nov 10, 2017 at 3:42 PM (Merged)
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HURRICANEJACK
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Electrical problem
2002 Mercury Mountaineer 6 cyl All Wheel Drive Automatic

Which fuse controls the power windows? The owners manual doesn't mention power windows.
Nov 10, 2017 at 3:42 PM (Merged)
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JACOBANDNICKOLAS
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Have you checked on the inside of the fuse box cover?
Nov 10, 2017 at 3:42 PM (Merged)
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WILLMAR
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What fuse numbers are the power windows? The driver's side works fine, but the passenger and back passenger windows won't work from drivers control. The passenger window doesn't work from any controls. Please help. Cannot figure this out!
Nov 10, 2017 at 3:43 PM (Merged)
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CADIEMAN
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hold the switch down and bang on the door panel with your fist. Does the Windows start operating?
Nov 10, 2017 at 3:43 PM (Merged)
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WILLMAR
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Nope. Didn't work. Anymore ideas?
Nov 10, 2017 at 3:43 PM (Merged)
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CADIEMAN
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U OK
Nov 10, 2017 at 3:43 PM (Merged)
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[email protected]
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Power window controls on drivers door will operate all 4 windows. However each door controls will not operate individual windows. Fuses seem to be good. What else can I check?
Nov 10, 2017 at 3:43 PM (Merged)
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MERLIN2021
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State exact problem please, Ford is specific on this for proper diagnosis thanks.
Nov 10, 2017 at 3:43 PM (Merged)
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DEBJL411
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Interior problem
1999 Mercury Mountaineer 6 cyl Four Wheel Drive Automatic 100,00 miles

All power windows stop working all at once checked the fuse and its ok, is there a relay somewhere and where is it? What else should I check?
Nov 10, 2017 at 3:43 PM (Merged)
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JACOBANDNICKOLAS
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Check the main switch on the driver's door for power both in and out of the switch.
Nov 10, 2017 at 3:43 PM (Merged)