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Originally Posted by Arthur Dalton
Jumper the pressure switch on the reciever/drier [ the one with the pig-tail leads ] with a/c on and see if Aux Fan comes on.
If Yes , fan cicruit is OK , you have a low refrigerant or pressure sw problem
If No, Take six screws around fuse box off to get to relay compartment behind fuse box There are two fan relays , Look on top of them ..possible fuse problem....
If No, check connections at dropping resistor behind driver headlamp.. this if part of aux fan feed circuit to fan motor/s..
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The low refrigerant pressure switch does not control the aux fan, it interrupts the clutch to save the compressor. The high side temp switch is what turns on the aux fan.
Your help is appreciated and I'm sorry to split hairs, but I just wanted to save someone the confusion.
Have a great day,