DeCrepe

I knew I had a preexisting issue when my key could be pulled from the ignition while running and the jeep could be started with anything that could turn the cylinder... But now I have a larger issue.

This afternoon I went out to start the jeep, accessories came on, but it wouldn't start. There was no resistance going from the run to start position, and now the only way to cut power is to pull the connector from the back of the ignition assembly.

I've pulled the cylinder by turning the key and pressing the release, but it doesn't matter what position the assembly the cylinder turns is placed in. If I plug the connector back in I have power and can't start or turn off anything by the ignition assembly.

I would like to wire in a power switch and start button to get me by the next week until payday...... Anyone have knowledge of how to accomplish this (which wires are used ) on a 99 cherokee sport?

Please? Pm deets would be awesome. Thanks!
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DeCrepe

Looks like the compressed metal "bar" that turns the electronic switch on the back end of the assembly broke.

I can now start, turn off, etc using a screwdriver. Just need to wire in a switch and push button... Or replace parts.

BwanaBob

I assume you have a 97-2001 XJ. The part you need is the actuator pin which goes
between the cylinder and the ignition switch. Mopar does not list it but Dorman makes it.

You can get it from www.rockauto.com
https://www.rockauto.com/en/moreinfo.php?pk=2546988&cc=1315943&jsn=374

They also sell ignition lock cylinders/keys as well.

DeCrepe

Correct, it's a 99 Xj.

Thank you, I'll look into that (also considering a custom rfid setup and switches)

97grand4.0

Replace the OE. You're going to have to anyway.

DeCrepe

I have it running as is using a screwdriver to turn the electronic switch. I do realize I'll have to replace the original parts if I want to use a key cylinder and all that. But given its functionality with just the electronic switch I can easily wire up a custom plug & play solution with whatever options I want to divulge in (push button start.... Oooh, high end. Lol)

97grand4.0

I saw that once I think on an episode of that show..what was it...COPS

DeCrepe

I'm willing to take the risk 😋. I'm planning a full car pc anyhow so it could be tied into a remote start function. Thank you for the.concern though my friend, duly noted.

DeCrepe

So I got it sorted out. I had completely spaced that I had an fsm for the jeep! Looked up the diagram for the existing circuit and designed one to operate in the same fashion.



Wish I had a 3D printer to fabricate custom parts (such as a new cover for the original ignition switch with a proper place for wires). But, that will come in time.

Next item will be a hidden fuel cut off stitch and a proximity fob for master power dis/enable (secondary battery, beefed up charging system, and eventually a raspberry pi pc with the works.)

If anyone wants a copy of my schematic to build their own I'm happy to share.