E90Post
 


ECS BMW
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > 4x4 / DSC / AWD lights, plus 2D5A and 2D06



Reply
 
Thread Tools Search this Thread
      10-02-2016, 07:08 PM   #1
tetsuo111
Captain
United_States
202
Rep
713
Posts

Drives: 2011 E91 Sports Wagon
Join Date: Dec 2014
Location: PNW

iTrader: (0)

Garage List
4x4 / DSC / AWD lights, plus 2D5A and 2D06

1) looking for BMW documentation to self-diagnose the above error codes
2) failing 1 (above), any experienced-based feedback is welcomed.

Yesterday the car did it's infrequent but annoying limp mode on the highway. 4x4 / DSC / AWD lights all on. Had to pull off to the side, shut the ignition off, re-start and reboot.

I cleared all codes then re-ran diagnostics. Only 2D5A (actuator TQ limit) and 2D06 (air mass system) are logged.

Search results show these lights indicating a variety of problems, from the transfer case motor, low battery V, etc.

Before I buy a new t-case motor, I'm seeking a more disciplined trouble shooting procedure.
Attached Images
  
__________________
BMW CCA #505794 STOP: ST60/40+RT700 GRIP: TCKline coils+CPs+400#/600# springs, MRF RSBs, SyncroDesign bushings, M3 links+brace+rods, MR toe, UUC sway, ARC8+MSI GO: AA tune+M3 CAI+RM intake+3IM+AA headers+ceramic+Dundon 321 20 gauge+Inconel exhaust, PG 3.91 LSD, TMS Delrin diff MISC: BMW Aero, Recaro Profi, M3 steering wheel+paddles+cowl+CF/Kevlar bumper, TMS pedals, UUC E-brake, CF trim, Rear seat delete, Safecraft, LUX, Xpel+FormulaOne
Appreciate 0
      10-02-2016, 08:46 PM   #2
tetsuo111
Captain
United_States
202
Rep
713
Posts

Drives: 2011 E91 Sports Wagon
Join Date: Dec 2014
Location: PNW

iTrader: (0)

Garage List
For others in the same boat-

http://www.e90post.com/forums/showthread.php?t=710244

Similar codes, different motor (N54). Owner solved the problem by replacing the transfer case actuator motor (BMW 27107546671). Owner also did a post-mortum and after opening the old transfer case found the internal worm gear i made of plastic and worn down.

W37V
http://www.e90post.com/forums/showthread.php?t=1216763

Owner had 2D5A. No resolution in thread.

http://www.m3forum.net/m3forum/showt...ult+195&page=2

See post 19. OP research indicates this code means, "I solved the problem !!!!!
That code means driven Rpm not matching engine Rpm and when Ecu see that booom code pop up.
The problem in my car clutch slips sometimes and when that happen my engine Rpm goes higher then driven ..."


Last example seems to indicate that a faulty TC worm gear could cause a mis-match between expected and actual TQ values.

Will do more research but I'm expecting to buy a TC servo motor at $450.

I don't remember my old 911s being so delicate...
__________________
BMW CCA #505794 STOP: ST60/40+RT700 GRIP: TCKline coils+CPs+400#/600# springs, MRF RSBs, SyncroDesign bushings, M3 links+brace+rods, MR toe, UUC sway, ARC8+MSI GO: AA tune+M3 CAI+RM intake+3IM+AA headers+ceramic+Dundon 321 20 gauge+Inconel exhaust, PG 3.91 LSD, TMS Delrin diff MISC: BMW Aero, Recaro Profi, M3 steering wheel+paddles+cowl+CF/Kevlar bumper, TMS pedals, UUC E-brake, CF trim, Rear seat delete, Safecraft, LUX, Xpel+FormulaOne
Appreciate 0
      10-02-2016, 09:13 PM   #3
Ruddigger
Major
Ruddigger's Avatar
387
Rep
1,234
Posts

Drives: 2012 E91
Join Date: Aug 2015
Location: SoCal

iTrader: (0)

I have no input, but this problem sounds like a real pain. Hope you get her fixed up quickly and cheaply.
__________________
My build thread.
It's a wagon with stuff on it.
Appreciate 0
      10-02-2016, 09:58 PM   #4
tetsuo111
Captain
United_States
202
Rep
713
Posts

Drives: 2011 E91 Sports Wagon
Join Date: Dec 2014
Location: PNW

iTrader: (0)

Garage List
Thanks, Ryan!
__________________
BMW CCA #505794 STOP: ST60/40+RT700 GRIP: TCKline coils+CPs+400#/600# springs, MRF RSBs, SyncroDesign bushings, M3 links+brace+rods, MR toe, UUC sway, ARC8+MSI GO: AA tune+M3 CAI+RM intake+3IM+AA headers+ceramic+Dundon 321 20 gauge+Inconel exhaust, PG 3.91 LSD, TMS Delrin diff MISC: BMW Aero, Recaro Profi, M3 steering wheel+paddles+cowl+CF/Kevlar bumper, TMS pedals, UUC E-brake, CF trim, Rear seat delete, Safecraft, LUX, Xpel+FormulaOne
Appreciate 0
      10-02-2016, 10:28 PM   #5
W37V
Major
No_Country
127
Rep
1,031
Posts

Drives: Car
Join Date: Aug 2014
Location: Location

iTrader: (0)

I scanned my car 2 weeks ago and the error was not present. It sure when it went away as I didn't do anything new to the car since it had the error. I'll scan the car tomorrow and see if it came back.

My car is not xi, so it doesn't have TC. It seems like you are implying that slipping clutch could cause the issue?
Appreciate 0
      10-03-2016, 01:43 AM   #6
TheAxiom
Major General
TheAxiom's Avatar
Japan
1378
Rep
6,830
Posts

Drives: E92 6 Speed
Join Date: Nov 2013
Location: Florida

iTrader: (5)

You've been battling that MAF issue for a while, did you clean or replace it?
Appreciate 0
      10-03-2016, 02:49 AM   #7
PhaseP
Captain
99
Rep
866
Posts

Drives: 325XI
Join Date: May 2010
Location: Earth

iTrader: (0)

Two codes are not related if you ask me.

I have a very good idea on 2D06 but I ran out of my 2 cents
Appreciate 0
      10-03-2016, 03:23 AM   #8
PhaseP
Captain
99
Rep
866
Posts

Drives: 325XI
Join Date: May 2010
Location: Earth

iTrader: (0)

Quote:
Two codes are not related if you ask me.
Scratch that. I initially taught not reading the links you provided to other threads but only reading your posts 2D5A was a known t-case code.
Reading those link it doesn't appear, at least not necessarily.

On that m3 thread later on they talk about gas pedal not matching throttle.

So the two codes actually may be related.
Appreciate 1
      10-03-2016, 08:06 AM   #9
TheAxiom
Major General
TheAxiom's Avatar
Japan
1378
Rep
6,830
Posts

Drives: E92 6 Speed
Join Date: Nov 2013
Location: Florida

iTrader: (5)

Quote:
Originally Posted by PhaseP View Post
Scratch that. I initially taught not reading the links you provided to other threads but only reading your posts 2D5A was a known t-case code.
Reading those link it doesn't appear, at least not necessarily.

On that m3 thread later on they talk about gas pedal not matching throttle.

So the two codes actually may be related.
I heard about this before, any links to the threads?
Appreciate 0
      10-03-2016, 06:21 PM   #10
tetsuo111
Captain
United_States
202
Rep
713
Posts

Drives: 2011 E91 Sports Wagon
Join Date: Dec 2014
Location: PNW

iTrader: (0)

Garage List
Quote:
Originally Posted by W37V View Post
I scanned my car 2 weeks ago and the error was not present. It sure when it went away as I didn't do anything new to the car since it had the error. I'll scan the car tomorrow and see if it came back.

My car is not xi, so it doesn't have TC. It seems like you are implying that slipping clutch could cause the issue?
Hmm, I cleared codes, drove again, then re-scanned. The two in the OP (TQ and mass-air) are the sole codes on the car now. No trace of the original 4x4 / DSC / AWD lights.

To your question - it seems like the guy in the second link solved his problem by fixing his clutch. I think that English is his second language, but he describes it as an RPM not matching issue / code. So I suppose slippage could happen anywhere in the drivetrain. In those first two links, one fix was at teh clutch, the other fix (xDrive) was in the TC motor.

Further searching reveals BMW has a SBI for adjusting wires that are systemically installed too taught(?!). I have code 55C3, VGSG wheel notlaufregelung activated, no DXC desired TQ setting:

file:///Users/scottkushino/Downloads...aspx_sie_p.pdf

Sadly, the only way to confirm is opening my TC and getting a visual on the plastic worm gear.
__________________
BMW CCA #505794 STOP: ST60/40+RT700 GRIP: TCKline coils+CPs+400#/600# springs, MRF RSBs, SyncroDesign bushings, M3 links+brace+rods, MR toe, UUC sway, ARC8+MSI GO: AA tune+M3 CAI+RM intake+3IM+AA headers+ceramic+Dundon 321 20 gauge+Inconel exhaust, PG 3.91 LSD, TMS Delrin diff MISC: BMW Aero, Recaro Profi, M3 steering wheel+paddles+cowl+CF/Kevlar bumper, TMS pedals, UUC E-brake, CF trim, Rear seat delete, Safecraft, LUX, Xpel+FormulaOne
Appreciate 0
      10-03-2016, 09:54 PM   #11
PhaseP
Captain
99
Rep
866
Posts

Drives: 325XI
Join Date: May 2010
Location: Earth

iTrader: (0)

You are going on wrong direction with the t-case, at least with the 2D06 (value Hot Film Meter (HFM, a.k.a MAF sensor) too high, Mass or Volume air too high) code.

In my experience 2D06 indicates either totally messed up MAF sensor like hot wire broken or the electronics inside broken, or a problem with electrical connection to the MAF sensor, and problem occurs at the MAF sensor connector. (My experience with it: http://www.e90post.com/forums/showthread.php?t=1304563)

In that first link you posted, the guy had 2D25 (manipulation cover, maximum air mass) and a bunch of DSC/AWD related codes. Two are unrelated. 2D25 description on the link says "Short circuit or signal interruption". That is electrical, most likely again connection problem, and likely intermittent. He may have fixed his problem with the DSC/AWD codes by the t-case fix, but this 2D25 most probably would come back. And likely he disconnected and reconnected the connector that was the culprit during the job on the car and so reseated the connector which got it fixed but temporarily.

And on that 3rd link about the 2D5A code, the guy initially "assumes" the code is because of engine rev not matching cars due to clutch slipping, but later on page 4 posts this:

"second that quote answer the problem and i was wrong its not clutch or flywheel its
( driver's accelerator pedal input NOT MATCHING electronic throttle control )


and when that happen YOU WILL HAVE CODE 195"
(post #36 in the link)

So even with the other code chasing the t-case doesn't seem right.

You may have t-case failing, but then you will have specific codes related to DSC/AWD/T-case.

Most in those links with 2D5A are using custom tune.
Appreciate 1
      10-03-2016, 09:56 PM   #12
PhaseP
Captain
99
Rep
866
Posts

Drives: 325XI
Join Date: May 2010
Location: Earth

iTrader: (0)

Quote:
Originally Posted by TheAxiom View Post
I heard about this before, any links to the threads?
See my previous post above, it is from one of the link OP provided.
Appreciate 1
      10-03-2016, 10:19 PM   #13
tetsuo111
Captain
United_States
202
Rep
713
Posts

Drives: 2011 E91 Sports Wagon
Join Date: Dec 2014
Location: PNW

iTrader: (0)

Garage List
PhaseP Thanks for that - I need to re-read and digest. A faulty electrical connection seems logical. Not mentioned in this post, but I also get infrequent CIC display reboot. The screen just shuts down to black, then reboots moments later. This only happens on the highway, just like the 4x4 / AWD / DSC only happens on the highway. They don't happen simultaneously. The BMW SIB indicates code 195 can in some cases be solved by loosening wires that were systemically installed with too much tension.

TheAxiom MAF- replaced once early this summer. Not experiencing rough idle.
__________________
BMW CCA #505794 STOP: ST60/40+RT700 GRIP: TCKline coils+CPs+400#/600# springs, MRF RSBs, SyncroDesign bushings, M3 links+brace+rods, MR toe, UUC sway, ARC8+MSI GO: AA tune+M3 CAI+RM intake+3IM+AA headers+ceramic+Dundon 321 20 gauge+Inconel exhaust, PG 3.91 LSD, TMS Delrin diff MISC: BMW Aero, Recaro Profi, M3 steering wheel+paddles+cowl+CF/Kevlar bumper, TMS pedals, UUC E-brake, CF trim, Rear seat delete, Safecraft, LUX, Xpel+FormulaOne
Appreciate 0
      10-05-2016, 01:06 AM   #14
tlow98
Captain
106
Rep
871
Posts

Drives: 2009 E91
Join Date: Aug 2011
Location: United States

iTrader: (1)

Hmmmm, taking out the shaft that connects the transfer case to the front axle would help, right? :-)

Looked at that servo motor thread - what a pricey little motor that is!
Appreciate 0
      12-05-2016, 04:26 PM   #15
tetsuo111
Captain
United_States
202
Rep
713
Posts

Drives: 2011 E91 Sports Wagon
Join Date: Dec 2014
Location: PNW

iTrader: (0)

Garage List
Update.

Reliability continues to trend in the wrong direction.

Last week the car bricked three times in three consecutive days. By "brick", I mean the car would unlock using the key fob, then after inserting the fob into the ignition, there is no power in the car. No accessory lighting, no starter turnover, no nothing. The car is cold and dark.

I found that physical movement in the car caused by opening or closing the driver-side door would help to re-establish continuity. I suspected a network BUS continuity fault, specifically malfunctioning module(s) or wire harness connection. I took the car to BMW Seattle last Wednesday because the car is no longer reliable enough to drive.

A prerequisite for diagnostics was replacing my 4 month new battery, measuring 14.8V at idle, with an OEM battery. The firmware was updated to the most recent sw revision. The FRM module malfunctioned and is being replaced at no charge because this is a known issue. The CIC completely bricked with the new sw load. The dealership is trying to have the CIC replaced with a new module at no cost, too.

The car isn't expected to be ready earlier than Wednesday this week. The part about replacing batteries seems unusual, but at this point I'm happy if this results in a complete solution.

I'll update as I receive more information. I just wanted to share for the benefit of others who might be coping with similar reliability issues.
__________________
BMW CCA #505794 STOP: ST60/40+RT700 GRIP: TCKline coils+CPs+400#/600# springs, MRF RSBs, SyncroDesign bushings, M3 links+brace+rods, MR toe, UUC sway, ARC8+MSI GO: AA tune+M3 CAI+RM intake+3IM+AA headers+ceramic+Dundon 321 20 gauge+Inconel exhaust, PG 3.91 LSD, TMS Delrin diff MISC: BMW Aero, Recaro Profi, M3 steering wheel+paddles+cowl+CF/Kevlar bumper, TMS pedals, UUC E-brake, CF trim, Rear seat delete, Safecraft, LUX, Xpel+FormulaOne
Appreciate 1
      12-08-2016, 02:47 AM   #16
tlow98
Captain
106
Rep
871
Posts

Drives: 2009 E91
Join Date: Aug 2011
Location: United States

iTrader: (1)

Ugh, sorry to hear. Hopefully they'll get it back into service for you.
Appreciate 0
      12-08-2016, 09:27 AM   #17
TheAxiom
Major General
TheAxiom's Avatar
Japan
1378
Rep
6,830
Posts

Drives: E92 6 Speed
Join Date: Nov 2013
Location: Florida

iTrader: (5)

tetsuo111 , any update on this?
__________________
E92 Msport - FBO, BPC tune + stickers.
Appreciate 0
      12-08-2016, 12:24 PM   #18
tetsuo111
Captain
United_States
202
Rep
713
Posts

Drives: 2011 E91 Sports Wagon
Join Date: Dec 2014
Location: PNW

iTrader: (0)

Garage List
Quote:
Originally Posted by TheAxiom View Post
tetsuo111 , any update on this?
Negative, not yet.

Was expecting an update yesterday. Will update this post as new information becomes available. I'm still in the courtesy vehicle.
__________________
BMW CCA #505794 STOP: ST60/40+RT700 GRIP: TCKline coils+CPs+400#/600# springs, MRF RSBs, SyncroDesign bushings, M3 links+brace+rods, MR toe, UUC sway, ARC8+MSI GO: AA tune+M3 CAI+RM intake+3IM+AA headers+ceramic+Dundon 321 20 gauge+Inconel exhaust, PG 3.91 LSD, TMS Delrin diff MISC: BMW Aero, Recaro Profi, M3 steering wheel+paddles+cowl+CF/Kevlar bumper, TMS pedals, UUC E-brake, CF trim, Rear seat delete, Safecraft, LUX, Xpel+FormulaOne
Appreciate 1
      12-09-2016, 03:00 AM   #19
Ruddigger
Major
Ruddigger's Avatar
387
Rep
1,234
Posts

Drives: 2012 E91
Join Date: Aug 2015
Location: SoCal

iTrader: (0)

How's the loaner?
__________________
My build thread.
It's a wagon with stuff on it.
Appreciate 0
      12-09-2016, 02:04 PM   #20
tetsuo111
Captain
United_States
202
Rep
713
Posts

Drives: 2011 E91 Sports Wagon
Join Date: Dec 2014
Location: PNW

iTrader: (0)

Garage List
Quote:
Originally Posted by Ruddigger View Post
How's the loaner?
I'll keep it brief and say the X-1 isn't my cup of tea. Auto motor turn-off at stop lights, too quiet, too soft. It feels like a soccer mom ride. Very quiet, smooth and comfy.

On the plus side, the sport mode electronically addresses many of these shortcomings, yet feels "synthetic" to me. I guess that I'm an old school, analog guy.
__________________
BMW CCA #505794 STOP: ST60/40+RT700 GRIP: TCKline coils+CPs+400#/600# springs, MRF RSBs, SyncroDesign bushings, M3 links+brace+rods, MR toe, UUC sway, ARC8+MSI GO: AA tune+M3 CAI+RM intake+3IM+AA headers+ceramic+Dundon 321 20 gauge+Inconel exhaust, PG 3.91 LSD, TMS Delrin diff MISC: BMW Aero, Recaro Profi, M3 steering wheel+paddles+cowl+CF/Kevlar bumper, TMS pedals, UUC E-brake, CF trim, Rear seat delete, Safecraft, LUX, Xpel+FormulaOne
Appreciate 0
      12-09-2016, 02:17 PM   #21
tetsuo111
Captain
United_States
202
Rep
713
Posts

Drives: 2011 E91 Sports Wagon
Join Date: Dec 2014
Location: PNW

iTrader: (0)

Garage List
Update and final resolution.

Picked up the car yesterday. Scope of work:
  1. The dealership replaced my 4 month new battery with the largest 90Ah OEM battery. The new battery is larger than the 80Ah battery included on the car when new.
  2. Software was updated with the most recent revision. This replaced the AA tune.
  3. FRM module was diagnosed to be malfunctioning. The module was replaced by BMW at no cost.
  4. The CIC display completely bricked with the new sw load. Several attempts were made to revive the module but without success. The CIC was replaced by BMW at no cost.

I was only able to do a short 15 - 20 minute drive yesterday. The car seems to be functioning properly, although the stock tune feels slow compared with the AA tune. The AT also seems to shift more slowly, but smoothly. All of the personalization and coding are gone, so I need to update and re-code.

Bottom line: This problem was vexing, at least for me. The symptoms began appearing a year ago, and became incrementally worse over time. Self-diagnosing was difficult because the codes seemed to be unrelated and all over the board.
__________________
BMW CCA #505794 STOP: ST60/40+RT700 GRIP: TCKline coils+CPs+400#/600# springs, MRF RSBs, SyncroDesign bushings, M3 links+brace+rods, MR toe, UUC sway, ARC8+MSI GO: AA tune+M3 CAI+RM intake+3IM+AA headers+ceramic+Dundon 321 20 gauge+Inconel exhaust, PG 3.91 LSD, TMS Delrin diff MISC: BMW Aero, Recaro Profi, M3 steering wheel+paddles+cowl+CF/Kevlar bumper, TMS pedals, UUC E-brake, CF trim, Rear seat delete, Safecraft, LUX, Xpel+FormulaOne
Appreciate 1
      12-10-2016, 03:33 AM   #22
tlow98
Captain
106
Rep
871
Posts

Drives: 2009 E91
Join Date: Aug 2011
Location: United States

iTrader: (1)

Well hopefully it's sorted. Interesting this would throw those awd related codes.
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
Forum Jump


All times are GMT -4. The time now is 04:49 PM.




e90post
e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
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