MOPAR Factory Fog Light Wiring Harness (an afterthought) -
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post #1 of 4 Old 03-12-2009, 08:59 PM Thread Starter
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MOPAR Factory Fog Light Wiring Harness (an afterthought)

I bought a 2003 TJ-X that did not have any of the wiring for factory fog lights.

I recently bought the wiring harness from and it looks like everything is there. I am routing it to a switch in the bezel, not the turn signal on the column. The folks I bought it from told me this was possible.

However, the instructions for routing and mounting this harness in the engine bay and dash are lacking, to say the least, in specifics.

Does anyone know of a tech write up for this particular project? I did a search but came up empty. Pictures of this type of install would be greatly appreciated as well.

I started this project tonight, but got frustrated trying to route the wiring harness and pulled it back out and put it in the box.

Any help would be appreciated.

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post #2 of 4 Old 03-14-2009, 10:42 AM Thread Starter
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Got the wiring in, one last question though.

I got the relay and fuse mounted, and the harness routed through the engine compartment.

I only had to run one wire through the firewall, which I assume powers the relay when the you flip the switch.

The wiring harness for the switch is already there in the center bezel, so where do I hook up this yellow wire?
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post #3 of 4 Old 03-14-2009, 11:18 AM
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Into one of the wires on the back of the switch in the bezel. It's best if you splice it in so it doesn't wiggle loose from a bump or anything. The install sheet tells you which wire to connect it to.
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post #4 of 4 Old 03-14-2009, 12:22 PM Thread Starter
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Wire it up!

I ended up wiring it independent of the fog lamp indicator on the dash, from a wire that is hot when the key is turned on.

That way, I can use the fog lights without worrying about whether the lights are on low beam or not.

Thanks for all the help.

Last edited by rdcox23; 03-15-2009 at 04:53 PM.
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