Recently my aux fan hasn't been working, it will go on for about 30 seconds when I turn my air on but it will stay on when my heat is on, but it won't turn on if the engine is running at a high temperature, so I'm trying to figure out if it's my fan, wiring or my motor. I went to my local junkyard to get anther fan but all they had were prior 96 xj and the connectors aren't the same. So I need some help here! Idk what to do if I should find another fan or what

 

I just went and got my codes read and I'm throwing off p1682, witch is the alternator, could that be causing my fan to not kick on?

 

The alternator has to be on line inorder for the fan to operate.

 

P1682 possible causes:

AMBIENT/BATT TEMPERATURE SENSOR
B (+) CIRCUIT HIGH RESISTANCE
GENERATOR GROUND HIGH RESISTANCE
GENERATOR FIELD DRIVER CIRCUIT OPEN
GENERATOR FIELD DRIVER CIRCUIT SHORTED TO GROUND
GENERATOR FIELD SOURCE CIRCUIT SHORTED TO GROUND
GENERATOR FIELD SOURCE (+) CIRCUIT OPEN
PCM

What is your alternator doing, in terms of voltage output?

 

I haven't really noticed anything different it's usually right at the middle of the volt metter, I'm having a friend bring home his voltage meter to check it

 

When fan stops does compressor also stop with ac on ?

 

Do what I did and put the fan on a switch. It's a more convenient way to control it.

 

What do I have to do to run a switch to it

 

Hook wire up to the fan + and - I took the - up to the front and grounded it to the body, then took the positive wire through the cab near the brake pedal. Run the wire into a two pole toggle switch, run another wire out the same place you took it in. After that I took that to an inline fuse. How you hook the positive wire to power is your choice. It seems like a lot of work, but is worth it. My jeep runs at 190 after the switch was put in. As all xj owners know, overheating is a big problem for a Cherokee. I will post pictures later.

 

replacement AUX fans off RockAuto are WAY better than one pulled from a junker.