Can't get compressor to click on

[epatrick]

I was hoping to get some insight on my 98 4.0 ranger's AC.

I just recently bought the truck two weeks ago and I have been trying to work on the AC. I've checked the fuses and relay. I've tried to jump the low-pressure switch and have replaced the compressor clutch switch connector but still can't get voltage on the clutch connector.

Never done any AC work so this is all very new to me. Any advice is appreciated

 

[franklin2]

 

[franklin2]

 

[franklin2]

Try swapping the relay out and see if that brings it to life. That is in the second diagram in the lower right. It says it is in the underhood fuse box. Looks like the low pressure switch does not have direct control anymore, it tells the PCM which then controls the relay.