How to disable the EDR? 2006 Solstice

ciurana · 11-02-2009, 03:07 AM

Greetings.

Can someone please provide instructions about how to disable the EDR while at the same time leaving the air bags operational on the 2006 Solstice? Thanks in advance.

N.B. I'm not asking for opinions on whether this will be a good/bad idea. Please keep the discussion to technical topics on how to do it; thanks again!

Cheers!

JewJenk · 11-02-2009, 05:09 AM

Not every one understands what letters may always mean. And thus may be able to answer the question if they knew what you meant. It's probably very simple and once it is know, I may say,,,,,,,,sheeeeese how stupid of me, that's what he meant..............

In other words, please spell it out, thanks....................

Small Dealer · 11-02-2009, 07:43 AM

The Event Data Recorder function is part of the Air Bag System Control Module functions.

I do not remember ever seeing any discussion, here or elsewhere, with successful instructions on disabling that function within the overall system.

normsf · 11-02-2009, 08:29 AM

Hello I cant think of any way of disableing EDR as the two work hand in hand, should the bags go off the ECM has a record of the telementry of why they went off.

stevebad · 11-02-2009, 10:04 PM

Not possible.... It's all or nothing.

I have removed both airbags, as well as the EDR box, but there is no way to de-select any of the functions individually.

JewJenk · 11-03-2009, 08:19 PM

The insurance companies, auto manufactures, law enforcement have just about made this impossible to disconnect, after all they want to know why you have crashed, and what you were doing before the crash......

This is a hacker question, suggest you contact 2600. Check the local book store, this will give you a start. That is if the one's in your area have not banned it from their shelves.

normsf · 11-03-2009, 09:19 PM

Hello, reminds me of what I have heard " the only way to erase a harddrive is with a Hammer"

ciurana · 11-04-2009, 01:06 AM

Greetings again.

Thanks for your replies. I'll do some research on the computer itself. I'm thinking that as long as the air bag microcontroller thinks there is an EDR, they should work. Or maybe removing the air bags altogether might be an alternative. I'll have to check what local laws have to say.

As for 2600... that's not a bad idea, in principle. If you have any information about the which microcontroller/microprocessor the EDR uses that could be the first step toward hacking it. I'll start looking for that elsewhere.

(Did I read somewhere that automotive industry is much into the Z-80 microcontrollers?)

Cheers!

ciurana · 11-04-2009, 01:14 AM

Here is an interesting overview of the EDR and EDRU setup, with some history and applications. It also lists the events being recorded. Searching now for Vetronix information. Cheers!

JRinKY · 11-04-2009, 08:18 AM

Makes me wonder why someone would want to do this.

Years ago I worked for a company that made a machine that assembled a component of an airbag control system. It put me in contact with a group of GM's development engineers. One of the topics that came up was the reliability of the system, and how anyone would know if it failed to work correctly. This was in 1984, and the whole concept was still pretty new. One of the stories:

A GM car was in a crash, and the airbag didn't deploy. The unbelted driver was serverely injured, and sued GM for damages. The controller was analyzed, and it reported that the ignition had been cycled 7 million times with the airbag fault indicator illuminated. Additional investigation revealed that the fault indicator had been on for "a while" and ignored by the driver. After the crash an associate of the driver had rigged an automatic device to repeatedly cycle power to the controller in an attempt to overload its ability to show what had happened.

KappaNumber · 11-04-2009, 10:39 AM

I get so tired of seeing the Mercedes commercial where they claim to have the first passenger car airbags. GM had them first in 1974 and doesn't get the credit it deserves. If GM had the foresight to make airbags optional (or standard) on many of their car lines back in the '70's, they would have a safety reputation at least as good as Mercedes. Too bad they missed the opportunity to capitalize on this important safety feature.