Fuse? Relay? Switch?
Low refrigerant? Blown fuse? Bad switch?
The 1992 Nissan truck air-conditioner pressure switch is located in the fuse box. The fuse box can be found in the engine compartment.
Most common cause is a low refrigerant charge Could be a blown fuse
Check for a blown fuse in fuse block and also at the top of the compressor Bad switch Bad compressor clutch
Yes there is a AC clutch fuse located in the engine compartment. It is a 10 amp fuse' check your manual it will tell the location. If that fuse is blown and continues to blow fuses the have the coil in the compressor checked, also the pressure switch.
check fuse 5 (7.5A) Recrit switch Fuse 25 (25A) Blower Switch Fuse 16 (10A) Coolant Fan Control Module Fuse 3 (30A) Coolant Fan Control Module Fuse 8 (30A) Coolant Fan Control Thermal Switch
There is a fuse, relay and switch on the low pressure side that will inhib compressor from turning on if there is not enough pressure.
If you mean the compressor, then it could be: A blown fuse, bad AC switch, or low freon. If you mean the blower fan, same problems above, but add a bad fan switch, or regulator.
Blown fuse, broken wire, failed switch,
It is a non serviceable part of the under hood fuse box.
AC relay is inside fuse-box on driver-side inner fender. Relay diagram is inside cover.