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w123 electric windows fault
The passenger front electric window and the drivers rear electric window wont work.I know they run of the same fuse so it must be a cicuit problem.I hear it could be a relay????? Any help would be much appreciated as this problem is driving my girlfreind MADDDDD!!!!!!!!!!!!!!!!!!!!!!
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Have you eliminated the fuse and fuse holder as possible problems?
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Windows
I have had this happen a few times and it has never been a relay, always a fuse. It has always been a fuse because the system is hooked up for the power from the fuse box to feed diagonally. Look in your fuse box and their should be a diagram and it will show you which fuse to change. You can try to rotate the fuse and see if the windows work. Sometimes the fuses are not making a good connection. But if your car has old fuses you need to change all of them...Every 10 years is a guideline. But most of us never know how long if ever our fuses have been changed. I don't think it is a window switch because the power has been split before it gets to the window switches. Try the fuse and if your car does not have a schmatic, then ask and you will be flooded with information...Jim
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James A. Harris |
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You have a short in the circuit. Start by disconnecting the swithces in the center consol. then replace the fuse. If it holds and does not blow then connect one switch at a time. when the fuse blows at least you will know from what point in the circuit your short is located.
The wires bend a lot at the door hinge so this is a spot where wear occures. Also it is possible that the motor has shorted. BUT the switch woudl also have to fail at the same time to allow this. Highly unlikely. does the fuse blow when the switch is installed or after the window switch is pressed. Which one? If it blows when the fuse is installed does it happen when the center consol swithces are disconnected? then it is not the wire harness from the fuse box to the center consol. Follow this concept and figure out when and where the fuse is blowing. Since you posted that the fuse keeps blowing when you replace it. disconnect eh switches in the center consol. does it blow? if so then you will have to trace the wiring from the fuse box to the consol and figure out which one is shorted. Dave
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1970 220D, owned 1980-1990 1980 240D, owned 1990-1992 1982 300TD, owned 1992-1993 1986 300SDL, owned 1993-2004 1999 E300, owned 1999-2003 1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD 1988 560SL, 100,000mi, owned since 1995 1965 Mustang Fastback Mileage Unknown(My sons) 1983 240D, 176,000mi (My daughers) owned since 2004 2007 Honda Accord EX-L I4 auto, the new daily driver 1985 300D 264,000mi Son's new daily driver.(sold) 2008 Hyundai Tiberon. Daughters new car |
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Correct Fuse
I am not sure which fuse goes there..white, red or blue. But make sure it is the correct one to start with and try Dave's ideas....Jim
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James A. Harris |
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