Brake light circuit - BMW Forum - BimmerWerkz.com
BMW Forum BMW Forum

Auto Insurance

» Featured Product
Wheel & Tire Center

Go Back   BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E36)
Register Home Forum Active Topics Gallery / Showroom Auto Loans Garage Search Today's Posts Mark Forums Read Auto EscrowInsurance

3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

BimmerWerkz.com is the premier BMW Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 08-28-2004, 01:27 PM   #1 (permalink)
Neutral Member
 
Join Date: May 2004
Car:
Posts: 66
Photos:
Steinkek is an unknown quantity at this point
I have read lots of posts on the brake light circuit and how to replace it. But I have a diffrent question. What exactly does the brake light circuit do? Is it a problem if its not replaced right away? Another thing is, the check controls light that tells me its out only comes on about half the time im driving. What should i do?
Steinkek is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 08-28-2004, 06:05 PM   #2 (permalink)
2nd Gear Member
 
iantosca's Avatar
 
Join Date: Feb 2004
Location: New Jersey, USA
Car:
Posts: 380
Photos:
iantosca is an unknown quantity at this point
Send a message via AIM to iantosca
I recommend you just replace it, I had the same problem. It gets extremely annoying after a little while.
__________________
98' BMW 328i - Jet Black, Black Leather, Alpine CDA-9831 HU

<span style='color:red'>For Sale:</span> Sony CDX-F5000 Xplod w/ Wiring Harness, iBook G3 900 Mhz 640 MB SDRAM w/ Original Box and Software + OS X Panther + Microsoft Office

(PM on any offers, Going on E-Bay soon ...)
iantosca is offline   Reply With Quote
Old 08-28-2004, 08:09 PM   #3 (permalink)
1st Gear Member
 
Join Date: Aug 2004
Location: Boston
Car:
Posts: 166
Photos:
theogill is an unknown quantity at this point
Send a message via MSN to theogill
If I undertand it correctly (I'm having the same problem and thinking about getting under the dash soon), there is a brake light switch that is activated when you depress the brake pedal. The actual circuit board is on the backside of the lamp cluster, and sometimes gets oxidization or something, and then the contact between the bulb socket and the circuit is compromised. From the posts I have read it seems that even when you take care to optimize the contact, the code still shows--which then indicates it's that brake light switch under the dash.
Hope thats helpful, it may not be all that accurate--but thats my understanding.
Ted
__________________
98 328i, black/black, manual, canadian sport pkg, ECIS intake, koni sport adj's, dinan springs, oe/oem clears.
Considering: tms shark,M 17&quot; wheels, larger sway bars.
theogill is offline   Reply With Quote
Old 08-28-2004, 09:40 PM   #4 (permalink)
Neutral Member
 
Join Date: May 2004
Car:
Posts: 66
Photos:
Steinkek is an unknown quantity at this point
Thanks for the suggestions guys. I think that when i get some money I will just go ahead and take care of it.
Steinkek is offline   Reply With Quote
Old 08-28-2004, 09:55 PM   #5 (permalink)
Threadkiller
 
bitcore's Avatar
 
Join Date: Jan 2004
Location: High Point, NC
Car:
Posts: 2,907
Photos:
bitcore will become famous soon enoughbitcore will become famous soon enough
Send a message via ICQ to bitcore Send a message via AIM to bitcore Send a message via MSN to bitcore
I had this problem... and it TOTALLY SUCKED.

If you have cruise control, then you have the 4 pin brake siwtch, otherwise, you should have the 2 pin brake switch. Do not buy this switch from bavauto. Suck it up and go to the dealership and get OEM. Saving 10$ will result in a *LOUD* brakeswitch. I know this because I bought both. Believe me, it's unbearably loud, even with the bodypanel put back in it's place. It only takes a minute at the dealership vs. waiting a few days for a crappy one to arrive in the mail.

Check all of your bulbs about 3 times over. MAKE ABSULTEY SURE THEY ARN'T BLOWN. If youre unsure, Replace them with a bulb from any autoparts store. They arn't more than 2$ each. Hell, Replace them twice, I had to. :P If they blow often or this dosn't help your problem after youve tried everything, go OEM. The BMW gods may be frowning on your taillight bulb selection.

Polish the contacts on the bulb holders, and the taillight assembly, this can help to some degree or could be the problem.

Make sure all of the connections to the tailight assemblys are secure and the pins in the plugs havn't backed out.

Do the obvious, check fuses, replace any that are blown with the same amperage rating.
__________________

bitcore is offline   Reply With Quote
Old 08-28-2004, 09:55 PM   #6 (permalink)
5th Gear Member
 
BMWJNKY's Avatar
 
Join Date: Oct 2003
Location: Elk Grove, CA
Car: '89 E30 w/M50
Posts: 1,175
Photos:
BMWJNKY has a reputation beyond reputeBMWJNKY has a reputation beyond reputeBMWJNKY has a reputation beyond reputeBMWJNKY has a reputation beyond reputeBMWJNKY has a reputation beyond reputeBMWJNKY has a reputation beyond reputeBMWJNKY has a reputation beyond reputeBMWJNKY has a reputation beyond reputeBMWJNKY has a reputation beyond reputeBMWJNKY has a reputation beyond reputeBMWJNKY has a reputation beyond repute
Send a message via AIM to BMWJNKY Send a message via Yahoo to BMWJNKY
Quote:
Originally posted by theogill@Aug 28 2004, 06:49 PM
If I undertand it correctly (I'm having the same problem and thinking about getting under the dash soon), there is a brake light switch that is activated when you depress the brake pedal. The actual circuit board is on the backside of the lamp cluster, and sometimes gets oxidization or something, and then the contact between the bulb socket and the circuit is compromised. From the posts I have read it seems that even when you take care to optimize the contact, the code still shows--which then indicates it's that brake light switch under the dash.
Hope thats helpful, it may not be all that accurate--but thats my understanding.
Ted
If it says brake light circuit 99% of the time it is a bad brake light switch, if the check control says brake lamp then it is a bulb problem. I've seen it numerous times at the shop I work at where a coustomer will state that the brake circuit warning in the check control only comes on sometimes, we put in a new siwtch and the problem is fixed.
__________________
My M50 Powered E30 Page

BMWJNKY is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E36)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Brake Light Circuit Warning (again) Stamey 3-Series (E21, E30) 11 03-05-2005 07:05 PM
Brake Light Circuit? jbnery6465 3-Series (E36) 11 02-17-2005 04:18 PM
Brake Light Circuit Then Amp Wont Turn On epistemology Audio and Electronics 2 09-27-2004 06:19 PM
Brake Light Circuit Warning? Laker 3-Series (E36) 10 08-31-2004 11:00 PM
OBC - brake light circuit bimmerbill 3-Series (E36) 6 12-02-2003 11:43 AM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 07:55 AM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.3.2
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.