I just refilled my AC and noticed that the AC compressor or the cooling fan is kicking on. Checked the fuses and they are still good. Also checked power going to the compressor and there was none power to it on the test light. Also swapped relays from the AC and cooling fan and still nothing. Anyone have an idea what it could be? Thanks

 

Anyone?

 

if your system pressure is good and your high pressure switch is plugged in, check to see if your fan relay is working properly and that your control unit is telling the ecu to turn on the a/c.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by YeuEmMaiMai &raquo;</TD></TR><TR><TD CLASS="quote">if your system pressure is good and your high pressure switch is plugged in, check to see if your fan relay is working properly and that your control unit is telling the ecu to turn on the a/c.</TD></TR></TABLE>

I'm sure the pressure is good because I had it refilledby my friend at Honda. I switched out the fan relay off with the relay next to it and still didnt work. I checked power off the relay side and it had no power going to either relays. There was power to both fuse boxes. If the fan relay was dead, wouldnt the compressor still work? If the control unit wasnt working, would that cause no power to the compressor or fan? Thanks

 

first of year and model???

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by deserthonda &raquo;</TD></TR><TR><TD CLASS="quote">first of year and model???</TD></TR></TABLE>

Oh forgot to mention that. It's a 94 Accord LX.

 

ok so you put a/c on and both fans do not work ??? no power at red wire at compressor?? and you checked the underhood cond fan fuse correct??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by deserthonda &raquo;</TD></TR><TR><TD CLASS="quote">ok so you put a/c on and both fans do not work ??? no power at red wire at compressor?? and you checked the underhood cond fan fuse correct??</TD></TR></TABLE>

The AC fan does not work at all...no power to the red wire on the compressor and all fuses are good....checked all of them with a test light.

 

ok at the pressure switch you got 2 wires frirst jupm those wires , if still no go , ground the red/white to ground ..if fan and compressor work you got a problem on the ground circuit of the car if still no go ....go to a/c compressor relay you got 4 wires with key on you should have voltage at black/yellow and at white wire if no voltage either fuse # 8 under dash or fuse # 34 underhood is bad.. if you got voltage chk ground on red/blue wire ...try thiose and let me know ...one morwe thing jump the white and tred wires at a/c compressor ... compressor should kick on

 

Found the problem...it was a brown wire tucked above the fuse box....It was corroded. So when it was wiggled, the compressor and fan would kick on. Thanks for the help everyone.