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1987 cherokee XJ - no “always hot” circuits have power. Only the ign powered circuits

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Old Mar 3, 2020 | 05:53 PM
  #16  
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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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Old Mar 3, 2020 | 06:10 PM
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There's a center bolt holding the 2 halves together.


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Old Mar 3, 2020 | 06:15 PM
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Thanks a lot! Since I have checked the fuse links I assume it has to be in the fuse panel connector. What do you think?
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Old Mar 3, 2020 | 07:56 PM
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Originally Posted by JPUMOU
Thanks a lot! Since I have checked the fuse links I assume it has to be in the fuse panel connector. What do you think?
It's possible. You can back probe the cavity I mentioned above using this photo.


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Old Mar 3, 2020 | 08:11 PM
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Thanks. I will try that!
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Old Mar 7, 2020 | 12:53 PM
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Originally Posted by cruiser54
It's possible. You can back probe the cavity I mentioned above using this photo.

I checked the terminal you marked shown on diagram here. It had voltage when key was on but not when it was off.
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Old Mar 15, 2020 | 04:02 PM
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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.
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Old Mar 15, 2020 | 04:32 PM
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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?
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Old Mar 15, 2020 | 07:04 PM
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Red wire fuse link to D4 in C100, to ignition switch B3. Might not be it.

Check E1 and D1.
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Old Mar 19, 2020 | 06:57 PM
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I checked E1 and D1. No voltage. Key on or off.
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Old Mar 26, 2020 | 10:07 PM
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Any ideas what to check next?
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Old Apr 5, 2020 | 05:06 PM
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Originally Posted by JPUMOU
Any ideas what to check next?
hey was just wondering if anyone had an idea what to check next? So far of the larger wires in harness the one red on is only wore with power when switch is off.
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Old Apr 30, 2020 | 02:13 PM
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Default Figured it out

Figured it out
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Old Apr 30, 2020 | 03:43 PM
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Originally Posted by JPUMOU
Figured it out

About time.....
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Old Apr 30, 2020 | 04:44 PM
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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.
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