Hi guys, I have an A/C issue. The the switch is working (replace) the relays are good (replaced) the temp sensors have been replaced. When the relays are jumped the both fans are starting so the compressor. I leave the car at my local Honda dealership, they spend 2 hours making test and did'nt found the problem. They suggestion is to remove the entire dash to check for wires issue. My question is does the ECU have something to do with the A/C signal? When I purchase the car their was a misfire issue and they found out that the problem was the ECU, they replace it with junkyard one and I suspect that it could be the problem.

 

What exactly is the issue? The compressor not switching on? Lack of pressure for the refrigerant will do that, you could be low. I just had this problem myself and they only evac’d 5 out of 15oz. AC and compressor started working again after the refill.

 

Here's how the issue started: when the AC switch was pressed ON, both fans and compressor where engaged at the same time as it should but stop and start randomly for a short period and then stop permanently (like a bad ground). Couple of days later nothing engage. The freon was checked (was little low) dealership add some. Still not working

 

Wondering if you had any progress with this issue. I'm in the same boat unfortunately and feel for you. Have gone through the whole gambit; changed fuses 10 & 43, changed the AC relay switch, changed indoor AC plastic switch (LED bulb went out over a year ago but still worked), and refueled to proper amount of refrigerant.

Compressor & clutch kick in when I hit it, but sadly still no cold air. Getting real hot this summer and trying to find a fix, will reply if I get lucky or any updates from mechanic.

 

You might have a bad expansion valve.