Hello new member here. I have an 02 accord with the 4 cylinder in it and been having ac issues. First problem was the comp locked up and snapped my belt, so i had all that replaced and now not getting power to the compressor. Checked all relays with good ones, replaced the hi/low pressure switch, ac on button in the dash, checked all fuses related to ac in all 3 fuse panels, and checked for broken wiring from the relay to the plug for the compressor. Everything checked out. I had great air before the comp locked up, what else could be going on here. Tips from the experts here would be greatly appreciated. Please note that i dont have gauges to check pressures but have had refilled with the proper machine each time.

 

I'm not much of an AC expert, but I'm going to move this over to General Tech where you'll probably get more answers. The "new member" area is mostly for welcome & introduction threads.

 

See attached diagram.

First are you getting 12V to AC relay on both power (pin 1) and control side (pin 4)? If not fuse, wiring defect seem likely.

If you getting 12V to power and control then look for ground signal to control side (pin 3) of relay from PCM. This signal causes relay to close and power supplied to compressor clutch.

If ground control signal missing, then pressure switch, wiring to/from pressure switch, heater control panel, G401 open, or PCM are suspects.

good luck