Hi,
I suspect you are looking for automatic climate control. If that is incorrect, let me know.
If you look below, I attached each of the four connector pinouts. Note, connector four is only relevant if the truck came with RPO, CJ2. I believe the RPO codes are located in the glove box.
Let me know if this helps or if you have other questions,
Take care,
Joe
See pics below.
Images (Click to make bigger)
Friday, January 3rd, 2025 AT 7:36 PM