Aircon wiring?

[Toybox]

I'd like to finally wire up my aircon pump. The small wiring loom to the pump has 3 wires, can anybody help me as to what wire does what?

 

[1uzvl]

depending on model it could be a slip sensor or superheat switch.

Wiring the super heat is easy,just acts like a normal switch open/close.Its normally closed afaik.

Slip sensor is harder and completly past me..If your using aftermarket ecu you could run with out either.



Someone with more electrical knowledge than me may want to verify though.

 

[Toybox]

Yip, I'm using an aftermarket ECU.

IIRC there the 3 wires are, black, yellow, and black with a stripe....

 

[1uzvl]

whats the engine out of ??

 

[Toybox]

The pump is out of a front sump engine 1uz, a LS i would assume....

 

[1uzvl]

that should be a superheat switch,they are just wired in series to the clutch coil from memory if the switch is normally closed.Im not much of a electrics guru though,i just do a/c stuff.

 

[sideshow]

get each of the 3 wires and test them individually

connect each one to 12v one at a time
one of them will bring the compressor on

thats the one u want

its either a blue wire
or a black with white trace

the other 2 wires is rom signal from compressor to ac amplifier so cut them unless u r using complete 1uz air con system
if u r then yr on yr own casue it can be big job

 

[Toybox]

Cool.... Thanks!