John,
Your steps towards troubleshooting are greatly appreciated. As you had recommended, I followed the pressure switch that connects to the Tower Train Control Module. The coolant temp switch. The Evaporator Temp Sensor and in-car Temperature Sensor connect to the AC Control Module. All this data is crunched and sent by Logic Bus to the respective receiver circuit. Then the Power Train Control module compounds the data and opens a contact on post #79 that closes the circuit to the ground, providing power to the clutch relay coil that closes its contacts 30-87, powering the Compressor Clutch. I still would like to find the relay and determine why fuse F168 does not get power from post #87 of the relay.
I suspect the relay is not working or it is simply missing, or I have been missed by this wiring Diagram I have. (attaching the full HVAC system Wiring diagram)
In 2009-2011 DJ, the relay was found on the left side of the engine compartment , on the fuse box.
Unfortunately, I can't get information about where that relay was physically located in the 2012 SXT Model.
I am hoping someone that has worked on 2012-2019 DJ models can give me some advice.
I am thanking you for reading my post till this point,
Your time and help is appreciated .
Alkot
AIR CONDITIONING - Dodge Journey SXT 2012 - SYSTEM WIRING DIAGRAMS .pdf