That's freaking cool.
99 EBCM Conversion to 01-04 EBCM -- Success!
Race Director
Joined: Mar 2004
Posts: 12,466
Likes: 886
From: Fort Wayne IN
2025 C5 of the Year Finalist - Modified
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Drifting
Joined: Jan 2009
Posts: 1,780
Likes: 42
From: Lake Norrell Arkansas
Great write up. Thanks for your time and effort in sorting out this problem.
On a C5 without AH would the swap be the same except for not having to deal with the steering wheel position sensor?
Thanks
On a C5 without AH would the swap be the same except for not having to deal with the steering wheel position sensor?
Thanks
Thread Starter
Instructor
Joined: Nov 2010
Posts: 100
Likes: 81
From: Katy TX
I haven't studied the schematic for a C5 without Active Handling. However, I don't think the late model C5 EBCM will function correctly without inputs from all the sensors associated with AH (SWPS, all yaw sensors, etc.). I think the conversion from non-AH to AH could be accomplished - but all the appropriate sensors and wiring would need to be part of the work.
Race Director
Joined: Apr 2007
Posts: 11,152
Likes: 890
From: South Western Ontario
I haven't studied the schematic for a C5 without Active Handling. However, I don't think the late model C5 EBCM will function correctly without inputs from all the sensors associated with AH (SWPS, all yaw sensors, etc.). I think the conversion from non-AH to AH could be accomplished - but all the appropriate sensors and wiring would need to be part of the work.
The early C5's without AH still have a SWPS.
Thread Starter
Instructor
Joined: Nov 2010
Posts: 100
Likes: 81
From: Katy TX
I confirmed this morning that Competition Mode now activates while moving at over 5 MPH (I tried it at 30 just to be sure).
Race Director
Joined: Mar 2004
Posts: 12,466
Likes: 886
From: Fort Wayne IN
2025 C5 of the Year Finalist - Modified
C5 of Year Finalist (performance mods) 2019
2017 C5 of the Year Finalist
2016 C5 of the Year Finalist
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Burning Brakes
Joined: Oct 2013
Posts: 1,030
Likes: 72
From: Seminole, FL
I just did a copy and paste of your entire procedure to a local file on my pc. I hope you don't mind. I've already started a conversation with one of my best parts sources. I've explained to him what I'm 'up to'... LOL He wished me luck.
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Racer
Joined: Sep 2012
Posts: 325
Likes: 1
From: Near Road Atl Ga
The rear-mount ABS is the best part of 97-98 cars. Why move it to the front? Much cleaner engine bay and better weight dist. Would have to retro the bracket a bit but I'm sure you could make it work of you're capable of the other parts of the task.
Intermediate
Joined: Jul 2014
Posts: 26
Likes: 2
From: Cameron Park California
99ebcm conversion
Hi: I am one of the fortunate ones that have a 99 c5 coupe with a distroyed ebcm, code "V". You mentioned that due to your work on your buggie, you would have 2 used ebcm's that you would consider selling to defray the cost of parts for your conversion. If so, I would be interested in buying on if it is not too expensive. Your reply would be appreciated. Not being cheap, but the same reason I have not bought one from a recycler is I would have no idea how long one used would last. Somehow have more faith in one that is being changed and not from a wreck. Thanx, Vince
Last edited by Vette Dreemz; May 24, 2016 at 06:04 PM.
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From: In a parallel universe. Currently own 2014 Stingray Coupe.
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Very good write-up. Thanks for posting this.
Supporting Vendor
Joined: May 2010
Posts: 6,819
Likes: 235
From: Bell Buckle, TN
St. Jude Donor '11
Great Job!
I see you did not use the YAW sensor nor the ladderal sensor. I did not read the entire thread and this may have been asked: Your not getting any ABS codes for those sensors?
We will start offering these kits to the public as we have it all in stock.
Thanks,
Marc
I see you did not use the YAW sensor nor the ladderal sensor. I did not read the entire thread and this may have been asked: Your not getting any ABS codes for those sensors?
We will start offering these kits to the public as we have it all in stock.
Thanks,
Marc
Thread Starter
Instructor
Joined: Nov 2010
Posts: 100
Likes: 81
From: Katy TX
Great Job! I see you did not use the YAW sensor nor the ladderal sensor. I did not read the entire thread and this may have been asked: Your not getting any ABS codes for those sensors? We will start offering these kits to the public as we have it all in stock. Thanks, Marc
Retrofitting the late model ebcm into an early C5 without active handling would require the addition of those sensors. I'm sure it could be done but definitely more work would be involved.
Supporting Vendor
Joined: May 2010
Posts: 6,819
Likes: 235
From: Bell Buckle, TN
St. Jude Donor '11
Thats right. Im very interested in doing this conversion in house for customers.
Burning Brakes
Joined: Jul 2006
Posts: 833
Likes: 4
From: Mexico NY
The though of not having a fix is daunting if it does go, I'm kinda screwed. having the AH sensors "faked" could be an option? I have a fairly decent knowledge of serial communications and I'm a system administrator so perhaps we could just figure out what feedback the ebcm wants?
Thanks for investing the time into this man!
Thread Starter
Instructor
Joined: Nov 2010
Posts: 100
Likes: 81
From: Katy TX
Racer
Joined: Oct 2009
Posts: 290
Likes: 5
From: St. Petersburg Florida
I'm the happy owner of a functional 98 (non AH) with a "properly functioning" ebcm.
The though of not having a fix is daunting if it does go, I'm kinda screwed. having the AH sensors "faked" could be an option? I have a fairly decent knowledge of serial communications and I'm a system administrator so perhaps we could just figure out what feedback the ebcm wants?
Thanks for investing the time into this man!
The though of not having a fix is daunting if it does go, I'm kinda screwed. having the AH sensors "faked" could be an option? I have a fairly decent knowledge of serial communications and I'm a system administrator so perhaps we could just figure out what feedback the ebcm wants?
Thanks for investing the time into this man!
Le Mans Master
Joined: Jun 2002
Posts: 8,352
Likes: 103
From: In the pit, trying to love someone.
I wonder how hard it would be to get someone like www.eficonnection.com to make the wiring harness adapters so no cutting or splicing of the factory harness was necessary?