Manual temp control diagnosed bad? Will ac fan run if compressor isn't? 2000 XJ
02-05-2015, 08:05 PM
#32
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Year: 1987
Model: Cherokee
Engine: 4.0
02-05-2015, 08:10 PM
#33
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If there is a relay it never sent the power to the efan, or it would have ran, testing it to straight 12v verified the fan works. Just not sure why it's not coming on at the correct temp. I do not have the scanner, it was a friend's, so I'd have to try and see if I can borrow it, or have him come over and hook it up to verify the temp. It just shot from the marl after 210 to the red... which was weird and terrifying, ha ha
02-05-2015, 08:15 PM
#36
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Year: 1998
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Engine: 4.0L HO
On '97 up XJs, the ECU also tells the temp gauge needle (and other gauge needles) where to point.
Last edited by djb383; 02-05-2015 at 08:22 PM.
02-06-2015, 08:42 AM
#41
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So if the efan does not turn on, say maybe its the relay, could that cause the compressor to not turn on? What should I do next, test relays?
02-06-2015, 10:54 AM
#43
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Year: 1999
Model: Cherokee
Engine: 4.0
Here's the fuse layout in the '00 and '01 XJ PDC. The relays are identified on the cover of the PDC.
Note the 40 Amp RAD FAN fuse. And the 20 Amp COMP CLUTCH fuse.
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Note the 40 Amp RAD FAN fuse. And the 20 Amp COMP CLUTCH fuse.
.
02-06-2015, 04:54 PM
#44
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Hm... the fuses behind my fuse door on the passenger side don't look like that.. is there more hidden behind the panel?
02-06-2015, 06:14 PM
#45
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Year: 1999
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Right church, wrong pew. You need to look in the Power Distribution Center (PDC) in the engine bay. A black box fastened to the passenger side inner fender.