The control side power is controlled by a fuse from the fuse block. The ground for the control side is controlled by the PCM and that is based on the signal from the pressure switch.
If the dark green/white wire has voltage, then it is not being commanded to ground. It should 0 volts if it is grounded.
Do you have a scan tool to monitor the operation of the AC commands?
Monday, June 18th, 2018 AT 4:24 AM