ABS Light. Dealer says DSC hydraulic unit and DSC ECU - BMW M5 Forum and M6 Forums

Go Back   BMW M5 Forum and M6 Forums > BMW M5, M5 Touring, M6 and Z8 Forums > E60 M5 and E61 M5 Touring Discussion

E60 M5 and E61 M5 Touring Discussion 2005- Advertiser's Forum

Like Tree2Likes

Reply
 
LinkBack Thread Tools Rate Thread Display Modes
Old 23rd January 2013, 13:27   #1
bya8
Member, Sport: On DSC: On (>100 posts)
 
Join Date: Aug 2012
Location: MDS

Garage: m5

Sales Feedback: (1)

Thanks: 1
Thanked 7 Times in 5 Posts
ABS Light. Dealer says DSC hydraulic unit and DSC ECU

I have read and googled much on this topic. Some have been fixed with throttle actuator or wheel sensor.
What I want to know is how many out there had the DSC hydraulic unit and DSC ECU changed and it did not clear the ABS light permanently?
I've read on a few instances this was the occurence. After the DSC and ECU change, a wheel sensor took care of the light.
The dealer troubleshooting flowchart printout clearly points to DSC.
But I'm not trying to feed them 4G to find out it was a wheel sensor.
Thanks for responses.
04/07 manufacture date M5

Last edited by bya8; 23rd January 2013 at 13:31.
bya8 is offline   Reply With Quote
Old 24th January 2013, 00:37   #2
bya8
Member, Sport: On DSC: On (>100 posts)
 
Join Date: Aug 2012
Location: MDS

Garage: m5

Sales Feedback: (1)

Thanks: 1
Thanked 7 Times in 5 Posts
Re: ABS Light. Dealer says DSC hydraulic unit and DSC ECU

Cmon guys. Nobody has any suggestions?
bya8 is offline   Reply With Quote
Old 24th January 2013, 14:13   #3
jcolley
Moderator
 
jcolley's Avatar
 
Join Date: Apr 2006
Location: Maine

Garage: Silverstone/Silverstone '06 M5

Sales Feedback: (3)

Thanks: 39
Thanked 570 Times in 357 Posts
Did they give you any actual fault codes? If you work with an independent BMW repair shop, they may be more willing to actually "diagnose" it than BMW AG's Easter-Egg troubleshooting flowchart.

It's all new to me, but the INPA software has the ability to monitor any sensor on the car. I would imagine you could use it to pull up the DSC module and read any analog values associated with DSC such as wheel speed, lateral acceleration, etc.

It does not make sense to me that both the ECU and the DSC hydraulic unit could fail though.
jcolley is offline   Reply With Quote
Old 24th January 2013, 14:24   #4
Ferris
Member, Sport: On DSC: Off
 
Join Date: Dec 2012
Location: New Jersey

Garage: 2010 E60 M5 White, 2001 S54 M Roadster Red

Sales Feedback: (0)

Thanks: 2
Thanked 16 Times in 15 Posts
Quote:
Originally Posted by jcolley View Post
Did they give you any actual fault codes? If you work with an independent BMW repair shop, they may be more willing to actually "diagnose" it than BMW AG's Easter-Egg troubleshooting flowchart.

It's all new to me, but the INPA software has the ability to monitor any sensor on the car. I would imagine you could use it to pull up the DSC module and read any analog values associated with DSC such as wheel speed, lateral acceleration, etc.

It does not make sense to me that both the ECU and the DSC hydraulic unit could fail though.
^This! You need the fault codes to know what exactly failed.
Ferris is offline   Reply With Quote
Old 24th January 2013, 17:05   #5
bya8
Member, Sport: On DSC: On (>100 posts)
 
Join Date: Aug 2012
Location: MDS

Garage: m5

Sales Feedback: (1)

Thanks: 1
Thanked 7 Times in 5 Posts
Re: ABS Light. Dealer says DSC hydraulic unit and DSC ECU

Best price DSC unit is $2500. Ouch!!!
bya8 is offline   Reply With Quote
Old 24th January 2013, 23:11   #6
bya8
Member, Sport: On DSC: On (>100 posts)
 
Join Date: Aug 2012
Location: MDS

Garage: m5

Sales Feedback: (1)

Thanks: 1
Thanked 7 Times in 5 Posts
Re: ABS Light. Dealer says DSC hydraulic unit and DSC ECU

Code: 5df1 dsc connector
5df0 dsc pump motor

What you guys think?
bya8 is offline   Reply With Quote
Old 25th January 2013, 01:20   #7
jcolley
Moderator
 
jcolley's Avatar
 
Join Date: Apr 2006
Location: Maine

Garage: Silverstone/Silverstone '06 M5

Sales Feedback: (3)

Thanks: 39
Thanked 570 Times in 357 Posts
According to ISTA:

5DF1- Hydraulic unit pump motor connector faulty
5DF0- Hydraulic unit pump motor.

Based on that, I would not suspect anything beyond the connector to the motor. If it were me (and the reason I won't go to a dealer), I would disconnect it and perform continuity checks across it. If those prove ok, then motor winding resistance (it has to be DC and likely isn't brushless), even test the motor with a 12V power supply and verify it works properly.

By the dealership method I think the flowchart is:

have problem--->replace stuff randomly
jcolley is offline   Reply With Quote
Old 25th January 2013, 03:47   #8
bya8
Member, Sport: On DSC: On (>100 posts)
 
Join Date: Aug 2012
Location: MDS

Garage: m5

Sales Feedback: (1)

Thanks: 1
Thanked 7 Times in 5 Posts
Re: ABS Light. Dealer says DSC hydraulic unit and DSC ECU

Will try when east coast gets out of the 20s
bya8 is offline   Reply With Quote
Old 27th February 2013, 14:02   #9
ET E63
Junior Member, warming up (<31 posts)
 
Join Date: Feb 2013
Location: UK

Garage: E61 M5

Sales Feedback: (0)

Thanks: 0
Thanked 0 Times in 0 Posts
I have the same error codes and have been adviced to change the DSC. Before I start spending big money, I would appreciate if you could tell me your final verdict. Was it the connector or did you end up changing the whole DSC control unit and hydraulic unit?
ET E63 is offline   Reply With Quote
Old 27th February 2013, 14:26   #10
bya8
Member, Sport: On DSC: On (>100 posts)
 
Join Date: Aug 2012
Location: MDS

Garage: m5

Sales Feedback: (1)

Thanks: 1
Thanked 7 Times in 5 Posts
Gonna try pluging in

Today I will try plugging in a used dsc unit i bought to see if it clears. Still can't figure out how to get L cabin filter housing off.
bya8 is offline   Reply With Quote
Reply

Bookmarks



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
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
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Mushy brakes after ABS/DSC unit replacement MPowrd E39 M5 and E52 Z8 Discussion 21 7th May 2013 05:04
Rebuilt ABS module - fixed ABS and BRAKE lights - but DSC light still on. Codes inside absolutegtr E39 M5 and E52 Z8 Discussion 18 19th January 2013 19:12
ABS & DSC light Clayton Usher E39 M5 and E52 Z8 Discussion 9 7th May 2012 13:23
DSC, ABS, and Brake light on please help H-townM5beast E39 M5 and E52 Z8 Discussion 0 1st November 2010 15:38
Resetting ECU to clear ABS/DSC lights? Stealth E39 M5 and E52 Z8 Discussion 7 28th October 2006 09:11

Loading...

All times are GMT +2. The time now is 15:17.



Everything Copyright 2000-2008. Do not use ANYTHING from this site without written permission. All images, graphics, sound files, video files and text appearing on this web site are the exclusive property of m5board.com and are protected under international copyright laws. All images, graphics, sound files, video files and text on this site are for on-screen and on-site viewing and listening only. No part of this web site may be reproduced, copied, saved, stored, manipulated, or used in any form for personal or commercial purposes without the prior written permission of m5board.com. Use of any image or graphic as the basis for another photographic concept or illustration is a violation of the copyright. Any copyright infringement will be prosecuted to the full extent of federal and international copyright laws. M5board.com is an enthusiast board and we don't condone any dangerous activity. Our airfield events are completely safe based on years of experience, we conduct them during clear visibility with mature participants that have several years of experience with high-performance automobiles, large unobstructed run-off zones on sealed off private former military airbases and we clearly mark the braking zones. If inexperienced with high speed driving we do not recommend organizing your own event but attending a high-performance driving school. The use of the term "BMW" on this site is for reference only, and does not imply any connection between m5board.com and BMW AG or BMW North America.