At the passenger switch its the Dark Blue and Brown wires.At the Master switch its the Light Blue and Tan wires. But I think your problem is a bad Master Switch
I changed the master switch so I'll try by-passing the circuit with your solution.
so you had already replaced the switch? that would have been good info to share. If I read your post correctly it would not go up with either switch, only down.
I have the same problem,put in a new switch,still will go down but not up, no change. Will Go up if I jump power to the blue and brown wires. Is there a relay or module somewhere? Whats next?
OK, which switch, the left (master) or the right? If it goes down, the wires are obviously good. So its a switch problem. The YELLOW wire supplies power to both switches. There are no relays, modules ect. Replace the RIGHT WINDOW SWITCH
After some cracker smashed my window and getting it replaced at Speedy glass I could no longer do up the window. It worked when I left Speedy glass then the wifes friend opened the window and would no longer close. I used the jumper method and worked perfect. Thanks for the guidance. Scott
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If the lockout switch on drivers door is "OFF"... Window fuse's and relay's may be up under passenger side dash or behind glove box.
Could also be a broken wire in the rubber boot going from the door to the body. You will have to eliminate each till you find the culprit.
The motor and the relay are the most likely to cause this problem. Try swapping the relay with a working window relay. If it still doesn't work, remove the door panel and remove the window motor.
Turn the motor shaft in both directions by hand several turns. Then plug the motor in and see if the switch will now run the motor. Sometimes thats all it takes to get it working again. I have had to do this with brand new motors. If voltage is not present at the motor connector, either a bad switch or a broken wire exsists. Make sure to check for voltage coming to that windows switch. Actually, GM use's a circuit breaker type relay for each window and one fuse for all the circuit breakers.
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