Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E53) Forum
Arnott
User Name
Password
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 12-15-2014, 10:36 PM
Member
 
Join Date: Feb 2013
Location: Denver, CO
Posts: 14
Roadieschuler is on a distinguished road
Exclamation Another Trans Failsafe Program Fail... Help!!!

A few weeks ago I got the dreaded Trans Failsafe message on my '03 4.4. My battery was starting to get grumpy after the X sat for a couple weeks, so I replaced it with one from autozone. The Trans Failsafe program still shows up, but only when the X reaches full operating temp. It shifts perfectly fine up until the program kicks on. It then shifts into 4th and stays there. The Trans fluid and filter were changed by the dealer when I bought the X 10k miles ago. The check engine light also came on, but no other dash lights. The codes I got were:
P0751-poor electrical connection-failed shift solenoid.
P0741-poor electrical connection-low transmission fluid level-failed TCC solenoid.
From what I've read on the outpost, I need to check if the alternator is good first. Does anyone know the procedure for getting alternator voltage on the dash?
I'm also going to try to test it with a DMM tomorrow. Does anyone have any other suggestions I should look into?
Thanx,
Nick
Reply With Quote

Sponsored Links

  #2  
Old 12-15-2014, 11:10 PM
rogerkiu's Avatar
Member
 
Join Date: Oct 2005
Location: Hong Kong
Posts: 1,062
rogerkiu is on a distinguished road
Does the red battery light light up? If no, the alternator should be working ok.
__________________
--2004 E53 X5 4.8is - ECE version; right hand drive; Located in Hong Kong; ext. black sapphire metallic; int. leather black; adaptive dynamic bi-xenon headlights; 16:9 onboard monitor w/o navigation; 20" genuine BMW Y-spoke 214 wheels with Bridgestone Dueler H/P Sport tires; Int. rear view mirror w/ compass.
Reply With Quote
  #3  
Old 12-15-2014, 11:16 PM
Member
 
Join Date: Feb 2013
Location: Denver, CO
Posts: 14
Roadieschuler is on a distinguished road
Quote:
Originally Posted by rogerkiu View Post
Does the red battery light light up? If no, the alternator should be working ok.
No battery light...
Reply With Quote
  #4  
Old 12-15-2014, 11:22 PM
rogerkiu's Avatar
Member
 
Join Date: Oct 2005
Location: Hong Kong
Posts: 1,062
rogerkiu is on a distinguished road
Then I guess you may have to check the transmission fluid and the control module connection. I suggest that you may use DIS to diagnose the fault code and then clear all fault code to see if it solve the problem. If not, you may have problem with the transission control module. I don't think your transmission is going bad.
__________________
--2004 E53 X5 4.8is - ECE version; right hand drive; Located in Hong Kong; ext. black sapphire metallic; int. leather black; adaptive dynamic bi-xenon headlights; 16:9 onboard monitor w/o navigation; 20" genuine BMW Y-spoke 214 wheels with Bridgestone Dueler H/P Sport tires; Int. rear view mirror w/ compass.
Reply With Quote
  #5  
Old 12-15-2014, 11:36 PM
Member
 
Join Date: Feb 2013
Location: Denver, CO
Posts: 14
Roadieschuler is on a distinguished road
Quote:
Originally Posted by rogerkiu View Post
Then I guess you may have to check the transmission fluid and the control module connection. I suggest that you may use DIS to diagnose the fault code and then clear all fault code to see if it solve the problem. If not, you may have problem with the transission control module. I don't think your transmission is going bad.
That makes me feel a bit better already!! Thanx!!
Is there an easy way to check the fluid without making a mess by undoing the fill plug? Can I do it while it runs like the fluid change DIY says must be done to fill it all the way?
Reply With Quote
  #6  
Old 12-15-2014, 11:43 PM
rogerkiu's Avatar
Member
 
Join Date: Oct 2005
Location: Hong Kong
Posts: 1,062
rogerkiu is on a distinguished road
Quote:
Originally Posted by Roadieschuler View Post
That makes me feel a bit better already!! Thanx!!
Is there an easy way to check the fluid without making a mess by undoing the fill plug? Can I do it while it runs like the fluid change DIY says must be done to fill it all the way?
First check the leakage of transmission fluid, if it is leaking then you need to refill the fluid. If no leakage, you still need to remove the fill plug to refill the fluid until it spills out. After complete refilling the fluid, you must clear all the fault codes before start the car.
__________________
--2004 E53 X5 4.8is - ECE version; right hand drive; Located in Hong Kong; ext. black sapphire metallic; int. leather black; adaptive dynamic bi-xenon headlights; 16:9 onboard monitor w/o navigation; 20" genuine BMW Y-spoke 214 wheels with Bridgestone Dueler H/P Sport tires; Int. rear view mirror w/ compass.
Reply With Quote
  #7  
Old 12-15-2014, 11:47 PM
rogerkiu's Avatar
Member
 
Join Date: Oct 2005
Location: Hong Kong
Posts: 1,062
rogerkiu is on a distinguished road
Further more, I used to own a 2001 4.4i E53 x5, and I encountered a problem that the transmission stayed at S mode, finally I figured out that it was the control module went bad and I bought a used one from eBay at around USD150 and install it and had it encoded, problem solved. I guess that you maybe encount the similar problem, alghough the sympton is different and I did not have warning in cluster.
__________________
--2004 E53 X5 4.8is - ECE version; right hand drive; Located in Hong Kong; ext. black sapphire metallic; int. leather black; adaptive dynamic bi-xenon headlights; 16:9 onboard monitor w/o navigation; 20" genuine BMW Y-spoke 214 wheels with Bridgestone Dueler H/P Sport tires; Int. rear view mirror w/ compass.
Reply With Quote
  #8  
Old 12-17-2014, 12:27 PM
Member
 
Join Date: Feb 2013
Location: Denver, CO
Posts: 14
Roadieschuler is on a distinguished road
So I looked under the car and didn't find any evidence of a fluid leak. I checked all the connections i could find and they seem to be in good shape. I tested the voltage at the courtesy ports under the hood and got 11 volts with the car off, 13 volts with it running. Did I end up with a bad new battery? Is it worth it to try to exchange it to see if its the problem?
Reply With Quote
  #9  
Old 12-17-2014, 05:28 PM
bcredliner's Avatar
Premier Member
 
Join Date: Jun 2008
Location: Little Elm,Texas. (40 minutes North of Dallas)
Posts: 8,105
bcredliner is on a distinguished road
You don't have to pull the battery to have it checked. Go to a local auto parts chain store and they will usually do a load test for free.
__________________
X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas
Reply With Quote
  #10  
Old 12-24-2014, 10:48 PM
Member
 
Join Date: Feb 2013
Location: Denver, CO
Posts: 14
Roadieschuler is on a distinguished road
I went to the Autozone where I purchaded my battery today. They tested the battery in the car from the connections under the hood and it said bad battery. They then exchanged it. Once the new was installed I asked for them to test it again. Same bad result. The old battery out of the car tested fine. We tested for a good alternator at the battery once it was installed and it came back with good battery, low charge. It seems like there is a strange electrical gremlin in the X. Could it be a voltage regulator? Is the voltage regulator separate from the alternator? Could it be a bad battery cable?
Reply With Quote
Reply

Bookmarks

Tags
failsafe, program, trans, trans failsafe program

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





All times are GMT -4. The time now is 07:10 AM.
vBulletin, Copyright 2024, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
© 2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.