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Car Forum / Jaguar Cars / September 2005electrical to window problem 91 XJ40 VDP
there seems to be something wacko with my electrical going to one of my windows. one of my passenger windows was having problems rolling back up, finally is just stopped going up. i took the motor out to see if it was a problem with the motor but the motor would run both directions with either wire connected. however if i hooked up both wires then the motor would only run one direction. i think thats the way it worked, its been a while since i fooled around with it. has anyone had this problem? how do you go about hunting down the source of this problem? thanks! try spraying the hell out of the switches. > there seems to be something wacko with my electrical going to one of my > windows. one of my passenger windows was having problems rolling back up, [quoted text clipped - 8 lines] > > thanks! its an electrical problem. not mechanical. > try spraying the hell out of the switches. >> there seems to be something wacko with my electrical going to one of my [quoted text clipped - 15 lines] >> >> thanks! Hi R, The switches used develop faults sometimes. It is one of the more common reasons for the window to fail as you have described. Cheers >there seems to be something wacko with my electrical going to one of my >windows. one of my passenger windows was having problems rolling back up, [quoted text clipped - 10 lines] > > gotcha, i did test it out and it wasnt the switch. the switch worked in both directions, its one of the wires to the switch is bad. but im not sure how to pinpoint where in the wiring has gone bad. > Hi R, > [quoted text clipped - 15 lines] >> >>thanks! Hi R, It may be one of the other switches as they 'feed through'. This is so that you cannot operate more than one window at a time. Cheers Chris >gotcha, i did test it out and it wasnt the switch. the switch worked in >both directions, its one of the wires to the switch is bad. but im not sure [quoted text clipped - 27 lines] > > I know this is late, but I came across this thread when looking through the ng. Best way to (relatively) non-destructively test wiring, use needles poked through the insulation and a multimeter set to continuity, preferably the "beep on continuity" type. Then you can trace through and isolate the faulty wire/connector. Not very common for these to fail, in my experience. Be careful. Do not assume that a wire going into a unit is common with the same colour wire coming out of it. For example, on the XJ40 the green (earth/chassis/ground) wire going into the window winder module (which is also used for the puddle lamp) has a diode on a PCB before going to the green wire out. There is continuity one way and not the other (reverse the meter probes) when OK. In my case it was no continuity either way, which meant a 1 cent diode and $10,000 worth of associated time to strip down the door and module, fit new diode and put it all back together again. (I value my time highly...). Mind you, although I was 99.9% successful, I did have one screw left over... > Hi R, > > It may be one of the other switches as they 'feed through'. This is so > that you cannot operate more than one window at a time.... <rest of thread...> Oh, and I should add. Disconnect battery (earth terminal, never the live first) before doing continuity tests or you will get erratic results/blown continuity meter. And before you do disconnect battery, have you got the radio security code if applicable, 'cos that'll need resetting when you connect again! I'm still trying to get mine... > I know this is late, but I came across this thread when looking through > the ng. Best way to (relatively) non-destructively test wiring, use [quoted text clipped - 19 lines] > > <rest of thread...> |
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