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Old 01-19-2009
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Need Help, 4x4's not working

I have a 2000 XLT 4x4 4.0l. My 4x4 is not working at all, The relays aren't clicking at all in the dash and the switch isn't doing anything. I have Live axle so I don't have vacume hubs, and I have a brand new transfer case motor. I need help if someone has any wiring diagrams or trouble shooting tips of places where I can start looking to eliminate some possibilities like the switch or G.E.M. Module. Any help would be great, Thanks.
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Old 01-20-2009
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Bump!
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Old 01-20-2009
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On my friends 01 Explorer Sport, a fuse went out and it did the same thing, and his explorer is essentially the same set-up as either of our trucks I believe.

Check the fuses is my first idea...
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Old 01-20-2009
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that is the reason i went to manual tcase. you might have to take it to a dealer to get it looked at
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Old 01-20-2009
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like i have told you... fuse then relay then switch...
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Old 01-20-2009
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I checked fuses, there all good. Im waiting on a wiring diagram from Jutin to start checking switch.
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Old 01-20-2009
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Quote:
Originally Posted by Redneckstone View Post
like i have told you... fuse then relay then switch...

This is the best I can come up with. If the fuses are good then check the relay before you go to the switch.
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Old 01-20-2009
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You checked all the fuses right? The ones in the cab and under the hood?\

Have you tried replacing the relay with another one you know works?

Finally, have you used a multimeter to see if the switch itself is working?
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Old 01-20-2009
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Originally Posted by Rangerkid View Post
I checked fuses, there all good. Im waiting on a wiring diagram from Jutin to start checking switch.
still not seeing RELAY in that sentence
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Old 01-21-2009
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That would be because there is no relay.


All the Electric Shift Control functions (except switch position) occur in the 4X4CM, part number 1L54-7H417-AC.

If the OP (Josh) wants a schematic (2000) for Electric Shift, send me a PM with your e-mail address and I'll get it out tomorrow (EVTM is @ home).
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Old 01-21-2009
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Originally Posted by Earl43P View Post
That would be because there is no relay.


All the Electric Shift Control functions (except switch position) occur in the 4X4CM, part number 1L54-7H417-AC.

If the OP (Josh) wants a schematic (2000) for Electric Shift, send me a PM with your e-mail address and I'll get it out tomorrow (EVTM is @ home).
sounds like thats what he needs then
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Old 01-22-2009
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In the schematic you will see there IS a relay involved, but it is only used to engage a clutch in the transfer case to bring the shaft up to speed for a smooth shift. Its failure will NOT cause it to fail to shift, but it will make it clunk at speed. You’d have to lay on the DS floor, looking up under the center of the dash to find that relay box. It also contains the Battery Saver relay, but I wouldn’t bother. I really think your 4X4 Control Module is bad, if the fuses are good. I can’t tell you exactly where that is located, but the diagram shows it in the center of the dash. I’d expect it to be behind the radio/heater controls area, on the right? It has a label that says 4X4CM and is approx. 6” x 5” black box, with two connectors. It’s mounted with two screws.

Your e-mail Spam control filter blocked me from sending the schematic. I can't get approved (from your link) because the work server refuses that connection. I'll send it to my hotmail address ([email protected]) and send it to you from home at lunchtime.
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Old 01-22-2009
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I did get the schematic, thanks. My email puts the spam mail in a folder and I just pulled your email out of there so no biggy.
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Old 01-28-2009
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BUMP! All Fuses are good, Transfer case motor works and the transfer case shifts into 4hi manualy. What electrical problems have people had with there 4x4's? Any hidden relays go bad, GEM problmes? Any help is appreciated.
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