Welcome to the E90Fanatics forums. E90Fanatics is the premiere website for the next generation BMW 3 series with interactive forums, photo galleries, and technical information for BMW enthusiasts. If you are looking to talk about your E90 Sedan, E91 Touring, E92 Coupe or E93 Cabrio -- E90Fanatics is the place for you!

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E90Fanatics > BMW E90 Forums > E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio - General Forum

E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio - General Forum
The E9X is the latest evolution of the BMW 3 series including the highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! Post questions about "upgrading" from your current E46 here or jump over to E90Fanatics.com!

Thread Tools Search this Thread Rate Thread Display Modes
Old 02-11-2013, 04:53 PM   #1
Registered User
Join Date: Oct 2006
Location: Santa Rosa, Ca
Posts: 13
My Ride: 2001 325i
Both backup and one tail light are out. Voltage to socket until you put a bulb in???

This is really weird or maybe not to those who know the answer. Have a 2006 E90 sedan. Both backup lights and the right tail light in the trunk are out. First swapped out all bulbs, tail light still out. Then swapped the bulb carrier left to right and still no light. Tested voltage across socket with bulb out and it shows 12 volts. Then put brand new bulb back in and voltage disappears!!!!!!????? Remove bulb and 12 volts reappears. I have never seen this before. Any suggestions? The FRM module?

I can't believe it is a trunk wiring break as I've read since there is in fact voltage to the sockets until a good bulb is put in.


Last edited by tritone88; 02-11-2013 at 04:55 PM.
tritone88 is offline   Reply With Quote
Old 02-11-2013, 05:22 PM   #2
Registered User
Join Date: Apr 2004
Location: Atlanta
Posts: 361
My Ride: e92 335i
Maybe you're using the wrong type of bulb? I remember on my old e46 I didn't know any better and put a bulb with the metal part being copper or something, and for some reason it screwed up the wiring back there and even affected the headlights. It can only use the ones with the silver colored metal parts.
atinybug is online now   Reply With Quote
Old 02-12-2013, 09:37 AM   #3
Registered User
Join Date: Oct 2006
Location: Santa Rosa, Ca
Posts: 13
My Ride: 2001 325i
Thanks for your reply. I'm using the standard BMW OEM bulbs.
tritone88 is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not 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 On

All times are GMT -5. The time now is 05:35 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use