rlrenz
Explorer
Regarding your AC problem - the system may be low on refrigerant. A very cold AC can happen when the system is low and the evaporator pressure drops. Here's the schematic FYI:
![Freightliner AC wiring.jpg Freightliner AC wiring.jpg](https://expeditionportal.com/forum/data/attachments/313/313635-0e6067390722f261cdd3fb3d46c4b9ef.jpg)
Since the cruise control system is part of the truck's ECM, the ECM may have been reprogrammed. It's possible a wire was clipped, but the switches being left in place suggests that nothing like that was done.
![Freightliner AC wiring.jpg Freightliner AC wiring.jpg](https://expeditionportal.com/forum/data/attachments/313/313635-0e6067390722f261cdd3fb3d46c4b9ef.jpg)
Since the cruise control system is part of the truck's ECM, the ECM may have been reprogrammed. It's possible a wire was clipped, but the switches being left in place suggests that nothing like that was done.