OBDII Emulator Question

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vwtech552

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	OBDII Emulator Question « on: March 10, 2013, 11:45:48 AM »

I am wanting to build an emulator to turn on and off a can-bus controlled radio from the ignition switch. Does anyone know how to do this or where I can find the info on doing this. I know this is not the place for this, but I have been searching and searching with no luck so I figured I would give all of you guys a try.


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terok

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	Re: OBDII Emulator Question « Reply #1 on: March 10, 2013, 04:03:37 PM »

I'm not absolutely sure, but i think you need to send CAN-data as an ID 0x572.
Byte 1 constructs as follows:
bit0 = Kl.S
bit1 = Kl.15
bit2 = Kl.X
bit3 = Kl.50
bit4 = Kl.P
bit5 = Kl.50b
bit6 = Kl.15SV
bit7 = Kl.L

So radio might want Kl.S and/or Kl.15 and/or Kl.X to be 1.


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VoltsNCodes

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	Re: OBDII Emulator Question « Reply #2 on: March 27, 2014, 10:39:05 AM »

How did you know the ID and Data that should be sent? Is that a standard?


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terok

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	Re: OBDII Emulator Question « Reply #3 on: March 31, 2014, 03:37:45 AM »

I think this is some kind of standard for VW CAN protocol specification.
Does not apply to newest models.


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