Climate Control Wiring Diagram

Question

Installed EVO-CHRT4 on a 09 Chrysler town and country.  Would like to use an AUX output of the EVO to turn on rear defrosters.  Need wiring diagram for the climate control to figure out which wire to tap into on the climate control.

Answer 1

On that vehicle the rear defrost is a positive latched signal.

So you would need to use a relay to change the polarity of yellow/black from ( - ) to (+). I would also suggest fusing the circuit as well.

It is the Dark Blue wire in the drivers kick going to rear of vehicle. So your gonna have to test it to find the right one.