My 95 855 AC stopped working - the switch lights up but the compressor does not cycle.

I checked the fuse, it is good. Where is the AC relay?

Should my next step be to run 12V to the compressor directly? How should I do that?

Thanks for your help!

Did it just die or is this the first time it is used this year? Have you checked the pressure? The pressostat switch is on the line heading into the cabin. With the engine running and the AC on, unplug the pressostat and short it with a paper clip. If the AC then runs, you are low on r134a.

Did you check the codes in B-1? Turn key to posII first.

Run a diagnostic for the AC relay by going into mode 4 on B-1. That means pushing the black button 4 times in 4 seconds. Then do the diagnostics for the Controlling A/C Relay
Enter control code 1-1-1 by pressing button on diagnostic
unit 3 times, with a short pause in between to allow LED to come on
again. ECC control module will now switch A/C relay on and off 5 times
(10 seconds on, 10 seconds off), switch A/C compressor on and off, and
turn control panel A/C indicator on and off. If A/C relay does not
respond as indicated, check A/C relay. See A/C RELAY CHECK under
TESTING.

Relay is under the glovebox.

Klaus
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My name is Klaus and I am a V ♂ lv ♂ holic