My A/C compressor won't run. The A/C shop said the A/C is ok, it is an electrical problem which they don't work on.
I have re-drawn the A/C section of the chassis electrical drawing in my Chilton manual, so I can see it better. Now I have some checks I want to do with the relays and sensors, but I don't know which relay is which. I see 5 relays along the driver side in the engine compartment and 2 on the passenger side. Which one is what? I at least need to know which is the "low speed fan relay" and the "Compressor Clutch Relay", but I would like to know what all of them are for.
Also I seem to have an extra sensor that wasn't on the Chilton drawing. I have always known where the Low Pressure Senser Switch is, but these other ones I am not famiier with. I think I see the "Clutch Cycling Switch" kind of attached to the H valve back on the firewall. Also by checking the wire colors I think I found the "High Pressure Cut Out switch" down below in the line from the compressor and below another unidentified thing, but before the input to the condenser. But there is another sensor on the line that goes from the condensor to the receiver/dryer, what is that? I don't see any more sensers in the Chilton drawing, so what can it be?
Thanks, Gary Stewart Reply to group or email snipped-for-privacy@nb.net (leave out the x-x)