i have a 95 accord when i turn on the ac only the fan comes on, not the compressor. I have checked the relay,pressure,pressure switch. i was told the relay works off of a ground signal from ecu to the relay, im not getting that signal. i can jumper to ground from the red w/blue stripe wire wich is supposed to be the ground from ecu, and the compressor comes on..Is their any other thing that could not let compressor run,but let the fan come on? please help!!!!!!!!!!!!!

 

I would start by checking the feedback circuits.