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Unread 02-11-2013, 09:03 AM   #1
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1989 XJ Cherokee 
Join Date: Feb 2013
Location: St.Cloud, MN
Posts: 2
Help no power at ignition switch

I have a 1989 Jeep Wagoner Limited (XJ version basically a cherokee sport) that is having problems starting. I don't have any power at the ignition switch. I replaced the starter relay and a fusible link and reset the ECU. After resetting the ECU it started after 25 minutes. It started and ran good for about an hour and died again. I unhooked the battery and hooked it back up again resetting the ECU again and after 25 minutes had power at the ignition for a minute then nothing again. I have power everywhere but the ignition switch. Any ideas?

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Unread 02-28-2013, 02:10 AM   #2
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1994 XJ Cherokee 
Join Date: Feb 2013
Location: Somerville, Massachusetts
Posts: 5
Hi Dean, did you figure out the issue? Does not sound exactly like my issue, but you never know.
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Unread 02-28-2013, 05:41 AM   #3
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1990 MJ Comanche 
Join Date: Oct 2009
Location: Prescott, Arizona
Posts: 10,931
Try this. can't hurt and could help. The "resetting" of a non-resettable ECU is puzzling.

I suggest unplugging EVERY electrical connection in the engine bay you can find, whether engine related or not, and spraying it out with a good electronics cleaner, visually inspecting the terminals making sure they haven’t retracted into the plastic holder, and then plugging it back together. There’s a critical 10-pin connector for the front lighting system located in front of the air cleaner and behind the left headlight assembly. Don’t miss that one. Also be sure that the connectors to the ballast resistor mounted near the air cleaner housing are clean and tight.

ALL of the relays should be removed, the terminals wire-brushed until shiny, and the receptacles sprayed out with contact cleaner. Then plug them back in. I do this on every Renix Jeep I purchase or work on for someone else.

Revised 07/23/2012

If you own a Renix Jeep, you should click on the following link to find some handy Renix tips.
Originally Posted by chris87xj View Post
If you own a Renix Jeep, you'll want to check this out. >

An index to over 25 write-ups can be found in Post #1.

Cruiser's Mostly Renix Tips
My Jeep Technical Photos
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ecu , fuse diagram , ignition switch , jeep , no power

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