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 05-27-2021, 02:49 AM
Member
 
Join Date: Jan 2020
Location: Calgary
Posts: 307
Bmwe5320023.0 is on a distinguished road
Rear right ride height sensor/LRA error, Headlight adjustment

Does anyone remember what these wires are on the left and right side, other than wires for the speed sensors?


I removed all the wiring for stock radio, amp and sub and I might've cut a couple of extra wires by mistake.

I just wanted to know if 3 blue/white wires on the left and 3 wires on the right are needed for anything, before I finish triple layer soundproofing and rebuilding the trunk from 0.

I can look up the wiring diagrams, I just forgot what is behind the rear inner fenders where these wires are coming from.

Last edited by Bmwe5320023.0; 06-01-2021 at 11:07 AM.
Reply With Quote

Sponsored Links

  #2  
Old 05-27-2021, 06:00 AM
wpoll's Avatar
Member
 
Join Date: Sep 2015
Location: South Island, New Zealand
Posts: 3,738
wpoll will become famous soon enough
Height sensors? Even without air suspension, there are height or level sensors for the headlights....

*edit* confirmed the ride sensor wiring colours match the colours in the picture - WS/GR, WS/BL, WS/SW + GE/GR, GE/BR, GE/SW
__________________
Wayne
2005 BMW X5 3.0d (b 02/05)
2001 BMW F650GS Dakar (b 06/01)

Last edited by wpoll; 05-27-2021 at 06:06 AM.
Reply With Quote
  #3  
Old 05-27-2021, 12:17 PM
Member
 
Join Date: Jan 2020
Location: Calgary
Posts: 307
Bmwe5320023.0 is on a distinguished road
Ahhh totally forgot about them!
My car doesn't have air suspension. Are these still doing anything in my car with a regular suspension?
Reply With Quote
  #4  
Old 05-27-2021, 12:33 PM
Member
 
Join Date: Jan 2020
Location: Calgary
Posts: 307
Bmwe5320023.0 is on a distinguished road
Looking at the diagram the ride sensor only go to the air suspension control unit, which I don't have.
So I can remove those extra wires now and see if there's any leftover to clean up��
Reply With Quote
  #5  
Old 05-27-2021, 02:34 PM
Member
 
Join Date: Jan 2020
Location: Calgary
Posts: 307
Bmwe5320023.0 is on a distinguished road
You nailed it, those were the ones.



I didn't even have the connector connected to anything.
Are you saying these sensors in the back are needed for headlights? I didn't even have the air suspension module in my car. And this is where those height sensors would connect to.
Reply With Quote
  #6  
Old 05-27-2021, 04:56 PM
wpoll's Avatar
Member
 
Join Date: Sep 2015
Location: South Island, New Zealand
Posts: 3,738
wpoll will become famous soon enough
Quote:
Originally Posted by Bmwe5320023.0 View Post
Are you saying these sensors in the back are needed for headlights? I didn't even have the air suspension module in my car. And this is where those height sensors would connect to.
I don't have air suspension either BUT the wires are used, at least, the ones on the right side are. LCI cars with self-leveling Xenon headlight use the ride height sensors for the headlight leveling system. Not sure if this is true of the pre-facelift cars (like yours) but if you don't have a level sensor on your right rear suspension, then I guess not and you don't need the wiring.
__________________
Wayne
2005 BMW X5 3.0d (b 02/05)
2001 BMW F650GS Dakar (b 06/01)
Reply With Quote
  #7  
Old 05-28-2021, 12:51 AM
Member
 
Join Date: Jan 2020
Location: Calgary
Posts: 307
Bmwe5320023.0 is on a distinguished road
Hmmm you're right again, maybe I was too quick to cut the connector off.
You see, I bought the car second hand, and there was a huge mess in the trunk.
So I cut off all the wires which had an empty connector dangling by itself. I thought that if the connector is not connected to anything, it must not be important.
I've retraced all the wires, removed all the extra wires going to the fusebox and relays for the components that I don't have, such as stock audio, air compressor etc.
This helped me organize the wiring and fix a bunch of electrical issues.
But maybe I was too quick with this connector.
When I bought the car, it didn't have the air suspension module. So I cut it off lol, the connector.

Now if the connector wasn't connected to the module, I guess there would be no signal going from the ride height sensor on the rear right side to the headlights.

My headlights do have a bunch of errors in bmwscanner which I planned to address once I finished with the other issues.
I'm gonna double check the error and maybe add the air suspension module and re-create the wiring from ride height sensors to the module.

Now if I'm going to take off the inner fender again and break those dumb plastic rivets, I gotta buy extra wide flares for the arches!
Just gotta find the ones that fit with the running boards.
Reply With Quote
  #8  
Old 05-28-2021, 03:26 AM
wpoll's Avatar
Member
 
Join Date: Sep 2015
Location: South Island, New Zealand
Posts: 3,738
wpoll will become famous soon enough
Quote:
Originally Posted by Bmwe5320023.0 View Post
... My headlights do have a bunch of errors in bmwscanner which I planned to address once I finished with the other issues.
I'm gonna double check the error and maybe add the air suspension module and re-create the wiring from ride height sensors to the module. ...
I don't think the EHC module is required for the headlight levelling to work - I certainly don't have an EHC module. But the wiring is rather different between the pre-facelift and facelift (LCI) cars. I'll check the wiring diagrams to see where the non-EHC cars connect the ride height sensors to the headlight levelling systems (LCM?).

*edit* it's the LWR module, not LCM.
__________________
Wayne
2005 BMW X5 3.0d (b 02/05)
2001 BMW F650GS Dakar (b 06/01)

Last edited by wpoll; 05-28-2021 at 03:32 AM.
Reply With Quote
  #9  
Old 05-28-2021, 03:37 AM
wpoll's Avatar
Member
 
Join Date: Sep 2015
Location: South Island, New Zealand
Posts: 3,738
wpoll will become famous soon enough
OK - in the second and third images in your first post (right side of car), the GREY wires are the headlight level sensor wires. It looks like the cars with EHC and LWR use a rear ride height sensor with TWO outputs - one for the ride height and one for the head lights. Yellow wires are ride height, grey are headlights.
__________________
Wayne
2005 BMW X5 3.0d (b 02/05)
2001 BMW F650GS Dakar (b 06/01)
Reply With Quote
  #10  
Old 05-28-2021, 04:55 AM
Member
 
Join Date: Jan 2020
Location: Calgary
Posts: 307
Bmwe5320023.0 is on a distinguished road
Definitely somethings not right



The 3 wires that are cut, I think they are yellow brown, yellow white and yellow grey.
Based on the diagram all 3 go to suspension control module, which I don't have, so it must be fine.
The other 3 are not cut, go to LRW module.
I'll have to check for continuity and voltage to see if the sensor and wiring is good on the right side.
If it's good and I'm still getting an error, maybe there must be a sensor on the left rear side that someone removed before me.
Reply With Quote
Reply

Bookmarks

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 09:14 AM.
vBulletin, Copyright 2021, 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.