Brake light works; tail light doesn't - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > Brake light works; tail light doesn't

Savvy Aluminum Gas Tank SkidFS: Jeep Fog Light LED Bulbs! Several Brightness Options! Stainless Steel Door Hinge Pins

Reply
Unread 09-12-2008, 08:09 PM   #1
manofmany
Registered User
1999 WJ 
 
Join Date: Aug 2007
Location: Indiana
Posts: 505
Brake light works; tail light doesn't

It was vice versa before I swapped a new bulb in. My tail light on the drivers side will not illuminate but the brake light will. What in the world could that be? The socket maybe? Can I get just a new socket somewhere?

__________________
1998 Cherokee 4.0L
1999 Grand Cherokee Limited 4.7L
manofmany is offline   Reply With Quote
Unread 09-12-2008, 11:20 PM   #2
ratmonkey
R.I.P.
 
ratmonkey's Avatar
1997 ZJ 
 
Join Date: Dec 2006
Location: , Pennsylvania
Posts: 19,796
on the wj?

it'll either be the seating of the socket or the whole assembly is bad.
__________________
'97 zj 5.2, some stuff, some other suff, and some things that even work sometimes.

ratmonkey is offline   Reply With Quote
Unread 09-13-2008, 12:21 PM   #3
Grdaemon
Registered User
1999 WJ 
 
Join Date: Sep 2004
Location: Athens Greece
Posts: 818
It's a ground thing. Sandpaper.. all contacts..done!
__________________
[FONT=Arial Black]X-Cherokee 1991 Limited
Hunter Green
1999 WJ Limited
Bright Platinum Metalic Clear
[URL=http://members.cardomain.com/grdaemon ]Check Pictures[/URL][/FONT]
[URL="http://www.alfachip.com"]http://www.alfachip.com[/URL]
[URL="http://www.how2forum.gr"]http://www.how2forum.gr[/URL]
Grdaemon is offline   Reply With Quote
Unread 09-13-2008, 12:28 PM   #4
stewco
Registered User
 
Join Date: Dec 2005
Posts: 5
Buy new sockets

Had the same problem..... I sanded them first, worked for a while, then quit again. Replaced sockets, problem solved.
stewco is offline   Reply With Quote
Unread 09-13-2008, 02:49 PM   #5
elmer_fud
Registered User
1995 ZJ 
 
Join Date: Jan 2008
Location: colorado
Posts: 2,457
could you bend the contacts in the socket up?
__________________
Brian
95 ZJ, 5.2 V8,160,000 miles
Colorado Jeep Club member Pi
Quote:
Originally Posted by Speedycat View Post
I am not one to be changing lanes at 70 mph on a lifted truck on 33's, but since I am in Miami, I have to be prepared for the continuous influx of new drivers whose previous ride was a bicycle with wooden wheels.
Quote:
Originally Posted by FPKites View Post
badger, badger, badger, badger, badger, badger, badger, badger, badger, badger, badger, Mushroom!!! :D
Quote:
Originally Posted by ZeeJay1997 View Post
Or just tie a 12 lb fish to a one foot pipe.
elmer_fud is offline   Reply With Quote
Unread 09-13-2008, 05:05 PM   #6
manofmany
Registered User
1999 WJ 
 
Join Date: Aug 2007
Location: Indiana
Posts: 505
Hmm one of the contacts did look a little burnt. I'm gonna try going at it. I see a replacement on ebay is like $12 shipped. Not bad.
__________________
1998 Cherokee 4.0L
1999 Grand Cherokee Limited 4.7L
manofmany is offline   Reply With Quote
Unread 09-14-2008, 06:44 AM   #7
Grdaemon
Registered User
1999 WJ 
 
Join Date: Sep 2004
Location: Athens Greece
Posts: 818
Quote:
Originally Posted by elmer_fud View Post
could you bend the contacts in the socket up?
They were too tight so I didn't try anything myself..
__________________
[FONT=Arial Black]X-Cherokee 1991 Limited
Hunter Green
1999 WJ Limited
Bright Platinum Metalic Clear
[URL=http://members.cardomain.com/grdaemon ]Check Pictures[/URL][/FONT]
[URL="http://www.alfachip.com"]http://www.alfachip.com[/URL]
[URL="http://www.how2forum.gr"]http://www.how2forum.gr[/URL]
Grdaemon is offline   Reply With Quote
Unread 09-14-2008, 09:13 PM   #8
ZJcrawler45
Registered User
1998 ZJ 
 
Join Date: Mar 2007
Location: Cbus, OHIO
Posts: 1,113
wait... can i replace the sockets on my zj? i have the same exact problem for about a year now and always thought i had a faulty wiring harness... where do i get just a socket at.? Also when it first stopped working something was burnt black in the socket at the bottom of the bulb.
__________________
Captain Nate
ZJcrawler45 is offline   Reply With Quote
Unread 04-03-2010, 06:02 PM   #9
wwwired
Registered User
 
Join Date: Apr 2010
Location: Canada
Posts: 1
Common Tail Light works - Running Light doesn't problem

Quote:
Originally Posted by manofmany View Post
It was vice versa before I swapped a new bulb in. My tail light on the drivers side will not illuminate but the brake light will. What in the world could that be? The socket maybe? Can I get just a new socket somewhere?
The reason for this is that the bulb socket is rotated 180 degrees out of position. The contact points need to be properly aligned (notice there are two contacts on one side and one just one contact on the other side). In the picture below you can see the two silver contact points on one side. The other side (behind and out of view in the picture) has just one:



The bulb unit (a twist in twist out circular unit with a fin that has a notch on one side of the top of the fin cut away) has three contact points for the dual running-light and brake-light circuit. Notice the notch on the bottom left in front of his thumb.



If you look at the lens socket into which the bulb unit is twisted, you'll see it also has three contact points (one on one side and two on the other side).

A common mistake is to insert the bulb unit the wrong way in (rotated 180 degrees). The side with the two contacts on the bulb unit has to line up with side on the lens socket's seat with the two contact points. Likewise the bulb unit side with just one contact point has to line up with the side on the lens socket's seat with just one contact.

You should have three bulbs in each tail light. The two bottom lights will have the fin-notch on the upper side I believe. The fin-notch on the inserted bulb socket for the top light (that contains the combination running-light and brake-light) will face the opposite direction from the two bottom bulb sockets.
wwwired is offline   Reply With Quote
Unread 08-20-2012, 10:50 PM   #10
BigWheel7
Registered User
1999 WJ 
 
Join Date: Oct 2011
Location: Brazil, IN
Posts: 397
Quote:
Originally Posted by wwwired View Post
The reason for this is that the bulb socket is rotated 180 degrees out of position. The contact points need to be properly aligned (notice there are two contacts on one side and one just one contact on the other side). In the picture below you can see the two silver contact points on one side. The other side (behind and out of view in the picture) has just one:



The bulb unit (a twist in twist out circular unit with a fin that has a notch on one side of the top of the fin cut away) has three contact points for the dual running-light and brake-light circuit. Notice the notch on the bottom left in front of his thumb.



If you look at the lens socket into which the bulb unit is twisted, you'll see it also has three contact points (one on one side and two on the other side).

A common mistake is to insert the bulb unit the wrong way in (rotated 180 degrees). The side with the two contacts on the bulb unit has to line up with side on the lens socket's seat with the two contact points. Likewise the bulb unit side with just one contact point has to line up with the side on the lens socket's seat with just one contact.

You should have three bulbs in each tail light. The two bottom lights will have the fin-notch on the upper side I believe. The fin-notch on the inserted bulb socket for the top light (that contains the combination running-light and brake-light) will face the opposite direction from the two bottom bulb sockets.
I first thought i had the sockets in wrong as well but the more i looked at it i found they were in correct. I think i have it narrowed down on mine to the sockets are just not making contact with the metal tabs in the lights. Keep in mind these are brand new lights and sockets.
BigWheel7 is offline   Reply With Quote
Reply
Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.