When I turn on my A/C on my 2000 XJ the electric radiator fan does not come on. The only time the fan runs is when the temp reaches about 210. Runs until it is about 195. I thought that the fan should run any time the A/C is selected. Any one have a wiring diagram for the fan relay showing both the temp sensor command and the A/C command?
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radiator fan relay wiring
- Thread starter xonlyj
- Start date
- Location
- Minneapolis, MN
What you describe is normal for a 2000 XJ. Sometime in 1998/99 Jeep reprogrammed the ECU engine computer to only run the e-fan when required. It should turn at about 215-218*.
O-Gauge Steamer
NAXJA Forum User
- Location
- Colorado Springs, Colorado
218F is the PCM trigger point , IMO, it was in 99 Jeep discontinued running the aux fan with the A/C.
Thanks to everyone for the replies and the link to the fan motor repair! Just can't stand to see the temp needle to the right of vertical. Especially when it sits left of vertical at milder temps. Guess I am still basing things off my '91 XJ with a 5 speed. God I wish I still had it, rock solid and had compression braking to boot.
