2007 F150 4X4 Lariat. AC Clutch won't kick on. The fuses check ok. The climate control switch shows A/C but nothing happens. Put a tester on it gave a U1950 DTC. Also the MAC Scanner in diagnostic mode shows the AC switch off while the controls switch in the truck shows on also the recirculation button shows on on the truck switch but on the scanner it flashes on to off and stays off. Anybody else have any similar issues with the AC?
Thanks

 

Yes Im having similar problems with my 07 lariat. To over ride the auto switch press the dash vent button and the ac this should turn it on all the time otherwise the auto climate control is controlling the ac.
my pulley hardly ever goes on I'm going to get the pressure tested and hopefully it will work again.

 

I am pretty sure I have a small leak and I am thinking it is one of the o-rings of the evaporator core. The system took a 18oz of refrigerant 2 weeks ago. I had to add another 12 oz and this time I used a can with stop leak. It took about 2/3 of the can. I am dreading the repair bill as I don't want to rip the dash out of my 2007 lariat either....anyone else with this experience?