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On our 2003 Passat, the power window's, door locks, trunk lock, and sun roof all don't work. None of the fuses appear to be blown. Our local garage says it's likely a computer glich, but VW only provides the codes to its dealers. Is this somehow fixable without taking it to the VW dealer and paying $75-95 an hour?
Thanks for any insights.
Well, your local garage is correct. Most cars now a days have computers for everything. That is one computer that runs those things. But before you go into replacing an expensive motor, go through and get a wiring diagram from your local parts store, and then see where the wiring all have in common, this may only be the computer, but may be a fuse of some sort. hope that helps.
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Try putting direct power to you're window motors and the power locks if everything moves and actuates, u can eliminate those items. also make sure you are getting power to you're switches, u may have a bad wire a bad connection or it may b grounded out. You could also just have a bad switches.
its a old car 15 years things wear out.that is what happenning,this is why folks get newer cars to drive ,a car starts milking your wallet at 5 years old and at 10 or more its a money hog.
put the key into the drivers door and unlock/hold over(the windows will go down)then lock/hold over.the windows will go up/sunroof closes)this should reset the system.if not then you will have to get the car on a diagnostic computer.
Check your fuse box for a blown fuse first.1 fuse controls power windows and locks, not 100% that it controls the brake light problem. I believe it is fuse 14, check your manual for sure. If you dont have your manual shine a flashlight on your fuses and you sometimes can tell if they are blown.
Brake lights
there is an actuator above your pedal that activates when you press the brakes. I have had these go out on one of my cars, difficult to replace but cheap.
If none of this works then you will have to go to the dealer because they wont tell you what the codes mean.
on the Drivers side Fuse box check fuse 14 its a little red one usually i just fixed that last night after searcvhign all over for a fix . wife helped me trace the problem in the Bentley manual shes good at diagrams. didnt think of checking the mini fuses but that was it .. it was effectign car alarm sun roof windows and door locks
Fixed it! Four broken wires which had corroded through because of water getting in. Reconnected with suitable wires = all works again! The wires are near the control unit under the LH floor. You will see tell-tale blue corrosion from copper wires seaping through the insulation tape.
The Problem is with the Microprocessor System of your Vehicle. You should Drive 3 Hrs. to the Authorized Service Station to avoid more Wreckage to other Electrical Part(s) of Car.
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