doing some playing around with ac wiring and heres what ive got. I am using blu 42 as the ground switch for a single fan and single relay and the fan operates normally. When i setup the VA i want the fans to turn on with it. After doing some testing, i put 12+ to (red 18) and the fan relay switched on as did the fan. when i removed it the fan turned off. So if i tie into one of the va 12+ wires when the sytem is turned on would this be the correct setup? if so then i just need to find out which pin is used to up the idle? anyone know which one?
thanks for any help

 

try this, I haven't verified it yet, but some members have looked at it and says all looks good. This should allow everything to function as needed.

 

how about the pin thats used for the idle up, does anyone know what # it is? or is it tied in with the rest of system.

 

I guess it would be red 18. clutch relay signal telling the PCM the A/C is on. might also need the input from the pressure switch telling the PCM the A/C system has adequete pressure.

 

i might just have to wait and get it all installed and see how it goes. i didnt have any idle change when i powered red 18 but it many need more readings.