My A/C stopped working, the light is flashing Options

[Smaay]

ok so i never opened the system, just took compressor off block and set it aside. well after getting everythign back in and running , the AC doesnt work. when i push the button, the compressor kicks on for 2 seconds. cold air blows, then it shuts off and the light starts flashing.

[GriffGirl]

check the relay and all the electrical connections

[Smaay]

it works for a few seconds then shuts off. what would a relay have to do with that?

[presure2]

did you plug in the plug under the glove box for the a/c amlpifier?

[alltracman78]

Usually the AC light flashing means the ECU isn't getting an RPM signal from the compressor.

Leaving the amplifier unplugged could definitely cause that.

However, if the compressor is kicking on and you're getting cold air I would think the amplifier would be plugged in.

If it is, take a look at the wiring for the RPM sensor on the compressor.
If that looks good you probably have a bad sensor. It can be replaced separate from the compressor.

[Smaay]

ooohhh plug under the dash? i think i missed that one. is it the one that is right under the rubber gromet on teh firewall? cause im sure i left that one unplugged, i couldnt remember what it was for. ill check it now!

[Smaay]

Hell YEAH!!! that was it! thanks for the help, once a gain this site came through! i wondered what that plug was for. as soon as i looked under the glove box, i saw the hole where it plugs into

[twolownissan2002]

let me ask you guys this i had ac and one day it stopped working and the light on the ac button doesnt light up anymore i have checked fuses up the dash and in the engine bay is there anymore fuses that could have went out?