1987 cherokee XJ - no “always hot” circuits have power. Only the ign powered circuits
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Joined: Dec 2019
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Year: 1987
Model: Cherokee (XJ)
Engine: 4.0 6 cylinder
I checked all the fuse links. None have an open circuit. Since the wire goes straight to that connector on back of fuse box, think it is the connector or fuse box? How do you get the box off? I took the mounting screws out but it seemed the cable just had enough room to connect and I could not pull the box away to see the back.
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From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Thread Starter
Newbie
Joined: Dec 2019
Posts: 20
Likes: 0
Year: 1987
Model: Cherokee (XJ)
Engine: 4.0 6 cylinder
Thread Starter
Newbie
Joined: Dec 2019
Posts: 20
Likes: 0
Year: 1987
Model: Cherokee (XJ)
Engine: 4.0 6 cylinder
I have on all the time power on D4 big red wire as shown below in block coming through firewall. No power on any big red wires coming in back of fuse block. And I forgot to mention when I crank it the engine runs for a few seconds then shuts off.
Last edited by JPUMOU; Mar 18, 2020 at 02:28 PM.
Thread Starter
Newbie
Joined: Dec 2019
Posts: 20
Likes: 0
Year: 1987
Model: Cherokee (XJ)
Engine: 4.0 6 cylinder
I traced it to a terminal block on top of the steering column. The red wire has voltage to that terminal block. Not sure where it goes from there. Starting to think the power all the time circuit goes to ignition circuit then back to fuse block. My problem might be in the ignition switch?? Would that make sense?
Thread Starter
Newbie
Joined: Dec 2019
Posts: 20
Likes: 0
Year: 1987
Model: Cherokee (XJ)
Engine: 4.0 6 cylinder
Thread Starter
Newbie
Joined: Dec 2019
Posts: 20
Likes: 0
Year: 1987
Model: Cherokee (XJ)
Engine: 4.0 6 cylinder
Lol I know. It seems someone had put a aftermarket power distribution module on the fender near battery and start really. 3 of the wires that should have been hot were tied to it. When I checked them they were always shown as a ground. I moved them all to power circuit and everything fired up. Module was bad or wired wrong I guess.


