E90Post
 


Extreme Powerhouse
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > Transmission Warning Light Comes Up When Pressing the Brake



Reply
 
Thread Tools Search this Thread
      04-08-2021, 01:25 AM   #1
Welcro
New Member
2
Rep
20
Posts

Drives: E90
Join Date: Sep 2018
Location: BKK, Thailand

iTrader: (0)

Transmission Warning Light Comes Up When Pressing the Brake

Hi all,

I have a '05 E90 Pre-LCI with N46 Engine and Automatic Transmission (ZF). Every time I press the brake the yellow transmission warning light will come up and will disappear after the brake is released.

I use ISTA/INPA to check the fault code and here is what I got:
51AE: No message (brake light switch), receiver EGS, transmitter DME-DDE

I already changed the brake light switch (Part no.61316967601) but the problem still occurs with the same fault code.

Anyone used to has this problem? And how you fix it? Any suggestion would be really appreciated. TIA!
Appreciate 0
      04-13-2021, 02:30 AM   #2
Welcro
New Member
2
Rep
20
Posts

Drives: E90
Join Date: Sep 2018
Location: BKK, Thailand

iTrader: (0)

Just want to update so this thread might be useful for someone in the future. The problem was from the bad DME, switch to the new one and everything is fine.
Appreciate 0
      04-14-2021, 02:11 AM   #3
blingers
Second Lieutenant
blingers's Avatar
15
Rep
210
Posts

Drives: Pre-LCI 130i
Join Date: Jun 2010
Location: sydney

iTrader: (0)

curious to know what caused the DME to fail. was it from a battery disconnect?
Appreciate 0
      04-19-2021, 06:57 AM   #4
Welcro
New Member
2
Rep
20
Posts

Drives: E90
Join Date: Sep 2018
Location: BKK, Thailand

iTrader: (0)

No clues and also want to know to prevent this from happening again. I unscrewed and open the old DME up to check for any water damage or any sign of burnt parts on the green board, found nothing, everything is in mint condition.
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -5. The time now is 06:27 PM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST