97 XJ 4.0 battery goes dead overnight
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Joined: Jul 2019
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Model: Cherokee (XJ)
97 XJ 4.0 battery goes dead overnight
I have a new battery new alternator I've checked wires I've pulled every fuse individually trying to find out what's drawing on the battery and it had no success in locating the problem the only thing that stops the draw on the battery is if I unplug the computer does anybody have any ideas what I might do to fix this
CF Veteran
Joined: Nov 2017
Posts: 3,700
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From: Groton, MA
Year: 1995
Model: Cherokee(XJ)
Engine: I6 4.0L
I have a new battery new alternator I've checked wires I've pulled every fuse individually trying to find out what's drawing on the battery and it had no success in locating the problem the only thing that stops the draw on the battery is if I unplug the computer does anybody have any ideas what I might do to fix this
If I had to guess, I'd be looking for an aftermarket alarm system and I'd begin diagnosis on the computer wiring harness and tracing it back. If you don't have a copy of the FSM for your year, I'd get one now. http://malcolm.iri5.net/FSM/1997_XJ_FSM.pdf (from Cruiser54.com).
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