Project 2004 Jeep Wrangler TJ - Multifunction Switch Wiring Harness Connector Replacement
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- Опубліковано 16 жов 2024
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The melted and brittle multifunction switch harness plug... it's a pretty common issue of the mid-2000s Jeep/Chrysler/Dodge vehicles... There is lots of speculation on why this happens, but many agree its because they decided to run way too many amps into a single switch. The switch connector gets very hot, and melts on the Batt+ side (as mine did) and the overall connector becomes very fragile. Replacement is the best solution.
I bought this amzn.to/2E4VjBO but didn't use any of the wires. See this video to learn how to remove the existing wires: • Multifunction Connecto...
If you need just a connector, maybe you can find it by itself... but I couldn't.
Here's the pinout reference I used:
www.wranglerfor...
Headlights on my '04 stopped working. Saw this video and helped prepare for a melted connector and bad switch (melted platic prevented retesting the switch). Replaced both and just moved one wire over at a time so didnt need a diagram. Had to splice 3 burnt wires though so for me, needed the kit. All back to working order now. This great video helped! Thank you.
Fog lights were not working on my 2005 TJ. Checked my fuses/relays, all good. Changed my multifunction switch in the process saw the wiring harness was melted. Found this video, purchased new harness. Moved/cleaned wires from old one to new one. Plugged in and it worked! Thanks for the video!
Those things can be maddening❗. Your patience and attention to detail are exactly what it takes to fix it right, and have no more problems 🏆😊. Thanks for sharing.
That was a great job!! Never I could imagine it could be done. Thanks for all your videos on the TJ. No local mechanic wanted to work on replacing my rear shock's rusty, broken bolts You saved me a big headache replacing the rear shocks watching your video. A big THANK YOU!
Thanks so much for the feedback! It's so encouraging to know that someone is getting value from this channel!
I'm so glad i found your videos on this thank you very much. I have been working on my own puzzle until you provided the key. Switching out my connector today. Thank you for sharing!
Yep mine disintegrated too. Thanks for the YT. Was looking for the wiring reference. Didn’t see. I’ll look harder, I may have the dumb.
Where did you find online the diagram? Thanks!
Good job and thank you. Same exact think happened in my 2022. I am doing mine this week. Looks easy enough.
You will have the wiring diagram I have lost order and I do not know how they are connected, I would appreciate your help friend
Do you have a copy of the diagram? I have a single wire not connected (yellow/white) and wonder why.
this is a great video. i am going through exactly the same scenareo with my 2004 wrangler. this video really saved me
Need help, where did you get diagram for wiring can't seem to find it anywhere
Ordered the replacement switch. Mine is crumbled pretty badly. I hope this is the issue because I've replaced EVERYTHING else. No blinkers no hazards but had brake lights. Fiddled with it and now it pops the ignition fuse every time I turn on hazards. And yet still no sign of turn signals or flashers. Checked all the bulbs outer signal wiring and rear twilight grounds.. this is absolutely maddening. I hope fixing the connector helps solve the mystery
Replaced my multi function switch because my fog lights were staying on .
Of course the connector then proceeds to disintegrate .
And , for added fun and games , the ignition actuator pin decides to join the party at the same time .
All of this in the middle of a bunch of upgrades along with rebuilding my old winch .
The old girl is really starting to get cranky lol .
Be nice if someone just carried the bare connector , so you dont have to depin a new harness , but , I believe the pins in mine are pretty fried as well .
Gonna see when the part arrives .
Id ratther not have to do all that soldering if possible .
I’m in the same boat, thank god I found this video. Wish I could find just the connector. Maybe mophar have it?. Thanks love the channel keep up the great work
Thank you for your work and for posting these videos . This has been a tremendous help to me with my Jeep.
did the same as you replaced the switch, wiring diagram was wrong for the color code. Looked up un line and most things work. except fog lights and dash dimmer. should be good enough for a sticker / thanks
How did you know which wire went into which port?
Not an easy job. Reminds me of when I started out as a technician. I've rebuilt many cable's and PC broads. Must have been fun back then because I ended up becoming an electrical engineer.
Keep up the good work.
It's tedious work for sure...but rewarding when it's finished!
Dealing with this same issue right now in 2020. Got a 2005 unlimited rubi that has a burnt up connector.
Where did you find online the diagram? Please
What causes the overheating? Will the replacement part eventually suffer the same failure?
Cheap plastic of 2003 that couldn't handle heat. Newer design is better and plastic is less prone to melting/cracking from sudden heat cold www.quadratec.com/sites/default/files/installation_instructions/5183442AA-Instructions.pdf
can"t find the rite color chart for the 20 pin plug...found 3 variations so far...please help
Same here pls help!
Same here pls help!!
I meant to say ordered connector. I've already done switch. And relay. I'm 140 bucks and 8 hours into it so far....... fingers crossed its the crumbled connector
04 wrangle some smoke came out of the steering column and found that the brake lights failed but left and right signal worked witch is the same circuit with turn signal interrupting one half with the flashing relay being switched in with the turn signal switch / fuse is still good 20A / replaced brake switch that has 6 pin connector ) no change ? Short should of popped the fuse / now going into steering column bummer
Yep... this was a horrible design. I bet you're will look like mine, probably worse!
Saludos puede tomar una foto al diagrama que utilizo ,tengo ese mismo problema y no consiguen la combinación de cables
These boys melt over time.Oh Chryslter
You are the instructions Dorman neglected to provide
Just found the same thank this morning! Ordered the connector from the dealership, $95.⁰⁰.
Good job great video
You the man!!!! THANK YOU!!!
Awesome ! Time to bedline interior lol