I'm at a loss. Recently A/C button light (snowflake) turned on its own, and won't tur

[basedvato]

Recently the snowflake button lit up (randomly), and rpms jumped to 2000 when in Neutral. Button is not dressed in and still lights up.

A/C does not have belt on compressor, but have a feeling whatever is making the a/c light on, is tricking the computer to ramp up rpms.

Any idea how I can disconnect this system, I removed the button and cleaned the contacts , no help. Thanks in advance - not sure where else to trouble shoot. I don't think its a air leak, because rpms drop to normal when in gear. I can't figure out how to manually turn off, whatever is sending the signal that is turning on the a/c thanks in advance.

[ELVA164]

Sounds like some sort of short to me. The rpm rises because that's part of the function of the button: that way, the engine doesn't stall at idle due to the extra load of the compressor. You'll have to take a look at the wiring and pay attention for broken sheathing or bare wire somewhere.

[basedvato]

Sounds like some sort of short to me. The rpm rises because that's part of the function of the button: that way, the engine doesn't stall at idle due to the extra load of the compressor. You'll have to take a look at the wiring and pay attention for broken sheathing or bare wire somewhere.

Thanks for advise. There was a wire in the engine bay on a/c compressor side, that had some cracks in it, touching a ground wire near the valve cover creating a short, and turning on the a/c frost button in the console - which was tricking the computer to ramp up RPMs. So I protected the wire with electrical tape, and zip tided it away, and I have a nice 900rpm humming in neutral.