ECU
Hi Guys,
Can anyone tell me where I can find what brand ECU is located in my tibby?
It's a Gen 1.
I've been looking to get a reflash, but they need to know which ECU my car is running on the moment.
Can anyone tell me where I can find what brand ECU is located in my tibby?
It's a Gen 1.
I've been looking to get a reflash, but they need to know which ECU my car is running on the moment.
You might be using the siemens ecu that was rumored to be reflashable. It's been a while since I looked at my ECU but wouldn't it be printed on one of the sides where the part number is?
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Joined: Feb 2009
Posts: 11,732
Likes: 5
From: Leesville, Louisiana
Vehicle: 2001 Hyundai Tiburon
The RD1/RD2 ECUs have a reflash line and the line extends to the OBD port. The line is there and has voltage on it. I have not spent enough time to figure out how to H4x0R it. I can tell you that it is possible though. I also believe there is a way to modify values while the computer is running as well. I am working on that with my current project OBD2ner.
All hyundai ECU interfaces specs are for Siemens and Delphi.
Other systems which are accessable are the TCU and the Airbag system. They are both accessable from the OBD port. However it would appear that they do not communicate using obd standards but again, I am working on hacking them for communications. As far as I can tell, the Manual TCU is used only for cruise control systems. Airbag would be useful for resetting the airbag light.
The tiburon ECUs reflash lines are not OBD compliant. They are Industrial Logic Serial Communications of some sort and a 12>5v interpereter would be required to read and write.
Hyundai never released a flash for these ECUs so there is no example to work with. It will require special hardware of some sort and maybe contacting the engineers in Germany (specified on the Hyundai mode $06 documentation).
Being that there was never a reflash, and no example to work with, there is no way to verify sane values to be fed into the ECU. This means that reflashing will be done blindly. I'm hoping that there is a way to get the flash off of the ECU chip to start with. If that is possible, then having a sane flash to work with as a reference will enable modification of that flash for tuning purposes and handling of add-ons. As of right now, the ECU is locked up because
1. we don't have a sane flash to work with.
2. we don't know the software communication standards of the reflash line.
3. we don't know the hardware communication standards of the reflash line.
In our favor:
1. we know there IS a reflash line
2. it IS connected to the ECU.
3. the ECU DOES support reflashing.
All hyundai ECU interfaces specs are for Siemens and Delphi.
Other systems which are accessable are the TCU and the Airbag system. They are both accessable from the OBD port. However it would appear that they do not communicate using obd standards but again, I am working on hacking them for communications. As far as I can tell, the Manual TCU is used only for cruise control systems. Airbag would be useful for resetting the airbag light.
The tiburon ECUs reflash lines are not OBD compliant. They are Industrial Logic Serial Communications of some sort and a 12>5v interpereter would be required to read and write.
Hyundai never released a flash for these ECUs so there is no example to work with. It will require special hardware of some sort and maybe contacting the engineers in Germany (specified on the Hyundai mode $06 documentation).
Being that there was never a reflash, and no example to work with, there is no way to verify sane values to be fed into the ECU. This means that reflashing will be done blindly. I'm hoping that there is a way to get the flash off of the ECU chip to start with. If that is possible, then having a sane flash to work with as a reference will enable modification of that flash for tuning purposes and handling of add-ons. As of right now, the ECU is locked up because
1. we don't have a sane flash to work with.
2. we don't know the software communication standards of the reflash line.
3. we don't know the hardware communication standards of the reflash line.
In our favor:
1. we know there IS a reflash line
2. it IS connected to the ECU.
3. the ECU DOES support reflashing.



