Hey Guys I have a weird problem and I need help on the path to diagnosis.

I bought a 96 850 wagon- and everything works except, there is no power to the heater/ac control/fan controls,
radio, or
power windows


I replaced the igntion switch but still no go-


Can you guys give me a path to go through to get to the bottom of this?

Thanks very much in advance.

 

bump

 

I'm sure you have done this already but have you checked fuses? could even try relays, some times if one is bad it "could" interfer with other equipment. Wouldn't hurt to check anyways, also see if any wires have gone bad

 

Make sure all the small wires at the positive terminal are good.

After checking all the fuses and relays.

 

all the fuses are cool- can you guys direct me how to check relays?

 

Under the cover that you access the Fuse panel from is a bunch of relays. Check in there.

Also do you know of any other repairs that were done to the car before you got it?

 

do I just use a test light?

on each side of the relay?

I'd really appreciate specifics here as I am a bit of an electrical moron


and yes I did the timing belt

she passed safey just have to stitch in new balljoints.

currently I have power jumper from the power antenae spot but I would like an oem solution.

 

I don't have all the Info home but follow link for wiring Diagrams and that should help you.
http://www.volvotechinfo.com/WD123/

 

k i got the diagram could you shed some light on the procedure to test the relays?

 

If you found the relay then you can look on the diagram and find out which connector should have power and test it with a test light. Make sure you have power going into it first. Then feel if the relay clicks.

You can also check a yellow plug with a purple pull on it under the dash. Make sure it is secured all the way. That is the Dash plug.

 

THX VERY MUCH!

 

Let me know how it goes.