fog light fiasco - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ General Discussion Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 02-08-2012, 03:20 PM   #1
Jeeper
 
05Sport's Avatar
 
Join Date: Jul 2011
Location: Flatlands of CT
Posts: 63
Images: 6
fog light fiasco

purchased my first jeep, 05 sport, this past summer. came with factory fogs but they hadn't worked since i got it.

read here all the different threads and concluded the Multifunction switch (MFS) need to be replaced.

i replaced the MFS but it didn't solve the problem.

i tried replacing the fog light relay and that didn't help either.

i took the left fog light apart to test for voltage and suddenly the right light started working. then it stopped working. then it started working again.

put the left one back together and had 2 working fogs. as i closed up everything they stopped working again.

i had noticed during the replacement of the MFS that the wiring harness was cracked and brittle. i had actually blown the MFS fuse when reconnecting the harness to the switch (twice since i put the old one back when the new one didn't fix it). i'm now wondering if there is a short in the wiring harness. I found a thread on another board about this and a part number 05183442AA for a repair.

has anyone here run into a similar situation? i can't find the part online but will try visiting a local dealer this week to see if they can get it (reported to be $40 item).

05Sport is offline   Quote Quick Reply
Old 02-18-2012, 05:14 PM   #2
Jeeper
 
Join Date: Apr 2011
Location: Washington, DC
Posts: 19
Have you tried changing the bulbs?

DCTJ is offline   Quote Quick Reply
Old 02-18-2012, 05:24 PM   #3
Grampie

WF Supporting Member
 
stans1stjeep's Avatar
 
Join Date: Dec 2011
Location: Rochester, Mi
Posts: 783
Having fooled around with old cars, I suggest looking at the connectors first. If you are blowing fuses you have a short. If you are loosing function you have án open circuit or a bad ground. If the lights are dim you have a bad ground.
__________________
NRA Life Member!
stans1stjeep is offline   Quote Quick Reply
Old 02-19-2012, 08:33 AM   #4
Jeeper
 
jefferyfghezzi's Avatar
 
Join Date: Jan 2011
Location: SANDUSKY OHIO
Posts: 553
I would guess you have 2 problems. If you took the left light apart and the right started working I would wonder if the power comes from the MFS to the left then to the right. You may have a bad connection/splice in the left fog light.Could be a bad ground in the left if there are 2 wires positive and ground going to the right. As you stated you blew 2 fuses putting the MFS in you may need to look for a couple of wires with bad insulation at the end of the harness that may to touching as you twist. You did say the wires looked cracked and brittle. They make insulation in a can that you can brush on.
jefferyfghezzi is offline   Quote Quick Reply
Old 02-22-2012, 10:26 AM   #5
Jeeper
 
05Sport's Avatar
 
Join Date: Jul 2011
Location: Flatlands of CT
Posts: 63
Images: 6
thanks for info. i was getting ready to swap the bulbs when everything started working. i'll pick up a new set and give it a try.

i also picked up some misc parts and will try to do a better job grounding the lights to see if that helps. in the mean time i haven't made it to the dealer yet to inquire about the MFS repair piece but hope to later this week.

for fun the other day i tried the fogs as i left my house, didn't work. drove around doing errands for 20 minutes and on a whim tried them again AND THEY WORKED! then as suddenly (and magically) as they stared working i made a right turn and they went off.
05Sport is offline   Quote Quick Reply
Old 02-22-2012, 05:19 PM   #6
Grampie

WF Supporting Member
 
stans1stjeep's Avatar
 
Join Date: Dec 2011
Location: Rochester, Mi
Posts: 783
Based ön your last post, you have án open circuit in the common feed wire. Check the connectors in that line for a loose wire or a loose connector.
__________________
NRA Life Member!
stans1stjeep is offline   Quote Quick Reply
Old 02-22-2012, 10:09 PM   #7
Jeeper
 
05Sport's Avatar
 
Join Date: Jul 2011
Location: Flatlands of CT
Posts: 63
Images: 6
Quote:
Originally Posted by stans1stjeep View Post
Based ön your last post, you have án open circuit in the common feed wire. Check the connectors in that line for a loose wire or a loose connector.
will do, thanks.

05Sport is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Check Engine Light - Emissions jloesche TJ General Discussion Forum 18 07-12-2011 04:11 PM
PREORDER: Rigid Industries Gen2 50" LED Light Bar Brackets REBEL OFF ROAD JK General Discussion Forum 3 06-20-2011 06:32 PM
new backup light project Hensman Communications and Electronics 8 04-23-2010 08:31 AM
"Check Engine" light soupy1957 JK Tech Forum 7 07-13-2008 11:58 AM
A Sign of the Impending Apocalypse Dare2BSquare Off-Topic 18 06-19-2008 01:44 AM


logo carid shop wrangler parts carid fender flares custom wheels store avs deflectors at carid
» Rates
Get low rates on auto insurance in Canada!

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 02:49 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC