Conversions & Swaps LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

LS3 Swap Electrical Controls question: BCM

Thread Tools
 
Search this Thread
 
Old Oct 29, 2010 | 10:31 PM
  #1  
tijoe's Avatar
Thread Starter
Teching In
 
Joined: Apr 2010
Posts: 33
Likes: 1
From: Austin, Texas
Default LS3 Swap Electrical Controls question: BCM

I seem to keep posting questions that no-one has answers for. Perhaps there is someone on the forum who can answer these questions.

I am in the middle of swapping a 2010 Camaro SS LS3/TR6060 into a 2000 Jaguar, and I am at the point that I need to figure out which direction to take concerning the electrical sub systems. (external to the ECM). My 2010 Camaro uses an E38 controller. I would like to figure out a way to get the BCM, to work in the car with a few key control modules: EBCM/TCS, Fuel Module, Cruise Control, HVAC, IPC. I understand that this generation of car implemented the new "Global A architecture"

My questions are;

- Does anyone know if I can defeat the security code and VIN verification that that BCM requires in order to alow the car to run?
- Does anyone know If I can operate the car without some of the Global A Security modules installed?
- Will the ECBM and fuel pump modules work without the BCM gateway and talk directly to the ECM?

Thanks.

Joe
Reply
Old Oct 30, 2010 | 05:25 AM
  #2  
rsz288's Avatar
TECH Resident
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2008
Posts: 834
Likes: 12
From: Right here, right now!
Default

Originally Posted by tijoe
I seem to keep posting questions that no-one has answers for. Perhaps there is someone on the forum who can answer these questions.

I am in the middle of swapping a 2010 Camaro SS LS3/TR6060 into a 2000 Jaguar, and I am at the point that I need to figure out which direction to take concerning the electrical sub systems. (external to the ECM). My 2010 Camaro uses an E38 controller. I would like to figure out a way to get the BCM, to work in the car with a few key control modules: EBCM/TCS, Fuel Module, Cruise Control, HVAC, IPC. I understand that this generation of car implemented the new "Global A architecture"

My questions are;

- Does anyone know if I can defeat the security code and VIN verification that that BCM requires in order to alow the car to run?
- Does anyone know If I can operate the car without some of the Global A Security modules installed?
- Will the ECBM and fuel pump modules work without the BCM gateway and talk directly to the ECM?

Thanks.

Joe
You've got two choices on this:

Either use the entire 2010 Camaro set of essential modules and related wiring in the Jag: ECM/BCM/EBCM & Yaw rate sensor + wheel speed sensors/Anti Theft Unit/IP/Key-Remote Access Unit/SRS etc.

or

Use the ECM by itself with the security patched out of the operating system.

Cheers
Reply
Old Oct 30, 2010 | 07:46 PM
  #3  
tijoe's Avatar
Thread Starter
Teching In
 
Joined: Apr 2010
Posts: 33
Likes: 1
From: Austin, Texas
Default

I believe your answer, but that is not what I want to hear. Post 2008 GM electrical controls architecture suck!

I am trying to dig into some rumors I heard, that some hackers are trying to figure out a way to spoof the BCM into thinking that all the modules are there. They are working on figuring out how to capture and then transmit the needed pass codes and Vin messages that the BCM looks for before telling the ECM it is OK to start the car.

If I can't have ABS/TCS without all the GM modules, are there any ABS control modules out there that operate independently of the BCM? Are there any older or after-market ABS sytems that work well that I could put on the car? I can live without ABS and make the car stop, but ABS has enough added benefits that I would be a nice option to keep.


Thanks for the response.

Last edited by tijoe; Oct 30, 2010 at 08:51 PM. Reason: Adding additional question
Reply
Old Oct 30, 2010 | 09:43 PM
  #4  
69 Ghost's Avatar
TECH Enthusiast
15 Year Member
 
Joined: Feb 2008
Posts: 503
Likes: 1
From: Ventura, Ca
Default

I don't know the new system but I ended up using the BCM and all the 4th gen wiring on my car. I know this is not what you are looking for but I was able to remove all the non-essential stuff for my application. This included the abs and air bag system. It would seem that you could tune out the error codes like the older systems while still being able to use what you want.
Reply
Old Oct 30, 2010 | 11:35 PM
  #5  
tijoe's Avatar
Thread Starter
Teching In
 
Joined: Apr 2010
Posts: 33
Likes: 1
From: Austin, Texas
Default

I believe that GM CAN systems have evolved another level since the 4th gen Camaros. Greater integration of all the sub systems occurred starting around 2008. GM is using the Global-A Serial Data Electrical Architecture -- a high-and low-speed data network that connects system modules. On 2010 Camaro, LaCrosse, SRX, Equinox and Terrains. The main change is that they added "Global A Security" where a group of modules that communicate with the BCM have security codes and VIN for each vehicle programmed into the modules. They all have to be programmed with the same codes or else the BCM starts a timer that will shut down the system. All of the modules have to be programmed at the same time when the BCM is programmed or updated. The immobilizer has to receive all the correct information from each module before it will allow the ECM to start the car. If the correct codes are not received, and engine pre-release code will expire and the engine will start and then stall. My understanding is that all the modules have to be programmed through GM's Service Programming System via TIS downloads. I believe that the radio control module pass code cannot be reprogrammed at all.

So far, this as all I know about this new software.

Joe
Reply
Old Nov 4, 2010 | 11:20 PM
  #6  
rsz288's Avatar
TECH Resident
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2008
Posts: 834
Likes: 12
From: Right here, right now!
Default

Originally Posted by tijoe
I believe that GM CAN systems have evolved another level since the 4th gen Camaros. Greater integration of all the sub systems occurred starting around 2008. GM is using the Global-A Serial Data Electrical Architecture -- a high-and low-speed data network that connects system modules. On 2010 Camaro, LaCrosse, SRX, Equinox and Terrains. The main change is that they added "Global A Security" where a group of modules that communicate with the BCM have security codes and VIN for each vehicle programmed into the modules. They all have to be programmed with the same codes or else the BCM starts a timer that will shut down the system. All of the modules have to be programmed at the same time when the BCM is programmed or updated. The immobilizer has to receive all the correct information from each module before it will allow the ECM to start the car. If the correct codes are not received, and engine pre-release code will expire and the engine will start and then stall. My understanding is that all the modules have to be programmed through GM's Service Programming System via TIS downloads. I believe that the radio control module pass code cannot be reprogrammed at all.

So far, this as all I know about this new software.

Joe
mmmmm.......interesting. Plenty of traps there!

Originally Posted by tijoe
I am trying to dig into some rumors I heard, that some hackers are trying to figure out a way to spoof the BCM into thinking that all the modules are there. They are working on figuring out how to capture and then transmit the needed pass codes and Vin messages that the BCM looks for before telling the ECM it is OK to start the car.
Be interested to hear if the "hackers" have a blog or website. Anything is possible......just a matter of time.
Reply
Old Feb 26, 2026 | 10:38 AM
  #7  
chimaera's Avatar
Teching In
15 Year Member
 
Joined: Aug 2009
Posts: 31
Likes: 0
From: Toronto, Ontario
Default

Sorry for bringing this back from the past.
I'm in similar situation as tijoe was where I have l99 out of 2010 Camaro and putting it into a custom build. OK maybe not same as I want manual transaxle instead of automatic that comes with l99, but thats another story.
Anyway, looking at trying to keep fuel pump module along with A/C and ABS systems in the car. As I'm looking at the schematics and with GM Global A platform a lot of that integration is linked into the the BCM and acts as a gateway between the systems. I know one thing for sure is that I need to remove VATS from the ECM in order to get the engine running and by passing the crank/starter from the ECU. However I'm trying to keep some of the control still within the ECM and send CAN bus signals for crank request and AC as there are couple of benefits in doing that. I can live with out the ABS but still would be nice to have.
I can build the electronics to simulate the BCM and code it as required for either normal key or push button but where I'm failing is finding CAN codes to send crank and AC request signals. It would be fairly easy if I had the complete setup to look for those codes but as I only have the ECU that is not the case.

Anyway its been few years since this message had been posted and I'm hoping that there had been some progress made and someone maybe able to help me out with the CAN codes or direct me somewhere else.
Reply




All times are GMT -5. The time now is 06:37 PM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE