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Old August 18th, 2009, 09:41 AM
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Mike Doligalski
'95 D90 ST
Join Date: Oct 2003
Location: Tampa, FL
Posts: 625
AC compressor relay

Anyone know where the AC compressor relay lives? My compressor won't come on, and I don't have 12V to the compressor with the AC turned on.
-Checked fuses.
-Checked the thermostat.
-Checked refrigerant pressure.

Turning on the AC does turn on the fan and blower.

Any other ideas?
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Old August 18th, 2009, 10:12 AM
Bozman's Avatar
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1991 200tdi D90
Join Date: Dec 2005
Location: Manchester, Vermont
Posts: 1,571
Did you look on the side of the blower motor (right side)? Or, possibly behind the bracket that holds the fuse panel (the goldish metal thing)?

I recall them being in either of those places.
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Old August 18th, 2009, 05:02 PM
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Julien Dalbin
05 Tdi 90
Join Date: Mar 2005
Location: Dominican Republic
Posts: 1,888
Under passenger seat in my truck.
" Eventually everything connects - people, ideas, objects. The quality of the connections is the key to quality per se. "
- Charles Eames
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Old September 6th, 2009, 02:55 PM
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Bill Lewis
1995 White SW 339/500
Join Date: Aug 2005
Location: The Rock, CO
Posts: 219
I seem to be having the same issue. Everything seems to be working fine and if I jumper the two wires going to the temp switch in the thermo housing the clutch kicks in and starts working. I just replaced the thermo and switch and am guessing that maybe the previous switch as bad as well as the relay? You know, so now that the switch is working, the clutch is not because of the relay.

Anyone know where to get these? I have searched but come up empty. Or is a dealer item.

BTW, There are three relays on the right-hand side of the blower motor not sure if these are the ones or not. I took the cover plate off the fuse panel but didn't see anything that might be a different relay.

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