I have a 2000 cherokee and my electric fan comes on if it gets warm, but it doesn't come on with the a/c which I thought it was suppose to. I let it idle in my garage turned on a/c it didn't come on so I thought it was burned out so I double checked and unplugged the sensor from the stat housing and it came on and threw a cel. So I plugged it back in let it idle with the a/c on and it got a little past 210 on the gauge and the e fan came on. So I turned the a/c off and then turned it back on and the e fan never came on. Just under the impression the e fan is suppose to come on whenever you turn on the a/c. Also now that I have a cel will it go away on its own or do I need to undo the battery to reset it? Any advice?

 

'00-'01 efans do not "turn on" when the compressor 1st engages.....they turn on only when refrigerant pressure reaches X psi and/or when coolant temp reaches 218F. '99 down efans turn on when the compressor 1st engages and at 218 coolant temp.

 

Well thank you for your reply.

 

X2
CEL should go away if not just reset it