C15 acert cooling fan staying on and only building 32 PSI boost max

I Jumped a/c high pressure sensor still stays on, I have Scan gauge plugged in and its read 182F same as the gauge on the dash, Any one have wiring diagram for the cooling fan? I get good fuel mileage but the it sucks at getting up hills. I have no exhuast leaks or intake leaks.

 

Its 2007 columbia old Martin truck. It doesn't have a manual switch to override the fan. I have no codes or anything with the cruise switch it just flashes 55 code.

 

The hub is fine what I did was to keep the fan off I disconnect the air lines from the air solenoid valve and connect the the line with a quick connector. I tested the air solenoid its good. There is no power to solenoid at all.

 

Heavyd thats what I did to earlier air solenoid is good. same with a/c switch left it like that for 10 mins no luck, thats why I wanna know if some has a wiring diagram so I check the wire from ecm for a short?

 

Thank you tho HeavyD.