a/c, heater and center console problems

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D1SR240
Posts: 3232
Joined: Mon Aug 18, 2003 11:55 am
Car: 2002 BMW M5
1991 Nissan 240SX

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my heater is stuck on the front window defroster, even if i change the button so its on the vent or floor it won't change, but the lights on the buttons don't light up so could this be a fuse? also my center console controls don't work, like power windows and the cigaratte lighter, not just the lighter but the thing that you plug in other things into it, (radar detector etc) could this also be the fuse?


NISTECH
Posts: 10585
Joined: Sun May 25, 2003 4:17 am

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I would say fuse or bad ground. you may be dealing with 2 problems though since the heater control units have a history of problems. check source voltages and grounds to the components . You will need to break out the FSM for these checks.

fuzion
Posts: 725
Joined: Wed Jul 24, 2002 6:35 pm
Car: Cars.. Web/graphic design.. Yuppp

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my heater & a/c controls are fussy.. my lights work so it could be a fuse issue w/ yours

but sometimes mine will be stuck and ive recently discovered a couple firm finger pushes on the button I want gets it switched over..

NISTECH
Posts: 10585
Joined: Sun May 25, 2003 4:17 am

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Circuoit problem internally. has some soilder joint cracks most likely. you can go in and resoilder them if you know how to soilder properly.

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D1SR240
Posts: 3232
Joined: Mon Aug 18, 2003 11:55 am
Car: 2002 BMW M5
1991 Nissan 240SX

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i don't have the FSM can anyone who does tell me which fuse it is?


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