Quote:
Originally Posted by 1slow370
actually i think the ac auto amp behind the heater controls triggers the compressor through the ipdm, it manages the pressures and things and sends the idle signal to the ecu. it's hella convoluted. you could actually swap the relay in the ipdm but you need another ipdm to harvest the relay from so hang on to old one incase another relay ever fails.
|
Very true, that is how the older system used to work. I am unsure on the can-bus systems. The only way to tell is to look at the wiring diagram in a service manual and trace out where it goes.