944 Lachlan

Renners,

I have a non-functioning a/c clutch and I'm in the midst of troubleshooting. I believe it's an electrical problem, as the clutch engages when jumped. My question has to do with the picture below. The white wire goes to the low pressure switch; the black wire which is cut seems to be connected to the a/c relay post #87a (the middle one). I have no idea where the red-green one goes, and I can't see a red-green wire in the Haynes manual wrt a/c. My question for you all is: what should this node look like? I'm thinking the back wire was connected but broke under fatigue, and that I should just connect it again to the junction; however, I don't want to do this without knowing where the red-green wire goes.

Charlie

The black wire goes to the same terminal that the red/green goes.

griffiths

Don't know if this schematic will help you, but:

Here

go to page 116 of the pdf

944 Lachlan

Thanks, Charlie. Thanks, Griffiths, but I couldn't get that document to come up as a pdf; web page only, so I couldn't find page 116. In the Haynes manual I found that the 1984 model used a red/green to go to the supplementary air switch, so maybe my 85.5 is old enough to match that one. One change I made, I attached the red/green wire to the opposite side of the low pressure switch as the power, same side as the compressor. I now have working a/c!