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I did find a book but didn't find anything that showed me wiring diagrams. I can probably screw around with it until it starts working but knowing beforehand would be cool.
Ford Focus RS CAN Message Decoding Project
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Very cool. Yeah, the "free" manual I got didn't have any of this stuff.
On another note has anyone figured out how to tell when your blinkers are on? Is that running through the CANBUS?
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Ok, was able to finally get everything up and connected. I'm trying to read the RPMs (Engine Speed). Sparkfun's code says the RPMs are on 0x0C so I tried that first because it was already written up. Strangely got RPMs every once in awhile but then got other data. So, came back to this thread and went to the spreadsheet. Spreadsheet says 0x090, cool cool, so I'll plop that in. Message Start bit is 36. Wait, what? I'm counting 8 bits of data (8 pairs with 2 digit) even in the example messages. Then length 12? Lol I see 8. Obviously there's some disconnect here. I really wish the example message had the result of what it is. If I ever figure it out I'd love to fill that in on the spreadsheet but maybe this is easy? I'm stumped though. Anyone able to help me out?
the 0x90 message is 8 bytes
the signal for engine speed is 12 bits
Here's the layout
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@Alpho ok, so here's what I came up with: with have a message like this come back 0000C1FF61A40000. Each of these numbers represents a 1 byte or 4 bits. You get this because the digit is a hexadecimal number so there's 0-F or 16 values that need 4 binary values or bits to represent 0000 = 0 to 1111 = 15. So if the offset and length are divisible by 4 then you can use the hex number, just divide 36/4 = 9 count over 9 digits, now we have 0000C1F. Length is 12/4 or 3. The result there is C1F, convert that to decimal and multiply by 2 and you have your RPMs.
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Do you know the CAN bus Speed is it 500 kbps?
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Hi guys,
I stumbled on this thread after scouring Google for info in CAN bus signals. Was hoping to pick your brains on this ambitious project I'm trying to start. I've got a 2012 Mustang with Sync 1 and am trying to retrofit a Sync 3 unit into it. I can't do it the usual way because my car only has 2 buses: MS-CAN and HS-CAN. I am missing the HS3-CAN/MM-CAN required for Sync 3. Otherwise, I think my car has all the other required Sync connections. I was thinking that an Arduino could be programmed as a gateway to provide missing signals between Sync and my car. Problem is I can't get the Sync 3 unit to boot up because it is waiting for the right ignition status signal to power up. A few questions to that end: 1) do you all think this is a feasible endeavor? 2) what is the ignition status signal to transmit? I see it noted on the excel sheet on this thread, but I must be deciphering it incorrectly since it is not working for me. Any advice would be greatly appreciated. Thank you!!!
I stumbled on this thread after scouring Google for info in CAN bus signals. Was hoping to pick your brains on this ambitious project I'm trying to start. I've got a 2012 Mustang with Sync 1 and am trying to retrofit a Sync 3 unit into it. I can't do it the usual way because my car only has 2 buses: MS-CAN and HS-CAN. I am missing the HS3-CAN/MM-CAN required for Sync 3. Otherwise, I think my car has all the other required Sync connections. I was thinking that an Arduino could be programmed as a gateway to provide missing signals between Sync and my car. Problem is I can't get the Sync 3 unit to boot up because it is waiting for the right ignition status signal to power up. A few questions to that end: 1) do you all think this is a feasible endeavor? 2) what is the ignition status signal to transmit? I see it noted on the excel sheet on this thread, but I must be deciphering it incorrectly since it is not working for me. Any advice would be greatly appreciated. Thank you!!!
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HS-CAN - 500kpbs (pins 14[-] and 6[+])
I-CAN - 500kbps (pins 8[-] and 1[+])
MS-CAN 125kpbs (pins 11[-] and 3[+])
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Hello
what the MY of your Mustang?
I think this may be possible, even if not connected to the HS3. As for MM / Ican, it can also exist and be isolated, away from the DLC (as this is how a screen communicates with sync (apim), acm and ipc.
Take a look on this image, the APIM (sync module) not have connections with HS3.
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Hello my friends!!
I have a doubt, I was analyzing the spreadsheet, openxc information and also data collected from my car, but I have not been able to decipher how to obtain this data.
Has anyone managed to obtain GPS coordinates, complete latitude and longitude? How did you do it, could you share please?
Thank you very much
I have a doubt, I was analyzing the spreadsheet, openxc information and also data collected from my car, but I have not been able to decipher how to obtain this data.
Has anyone managed to obtain GPS coordinates, complete latitude and longitude? How did you do it, could you share please?
Thank you very much
Thanks for that. Do we know what the I-CAN bus is for?
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Infortainament systems...
Connects FCDIM, APIM, ACM and IPC
Some cars do not have I-CAN on the DLC (pins 8 and 1), only on the harness of the modules
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Hi!
Man, this file until exists??
I have interest in this DBC / Spreadsheet!!
Could you share agains please?
Thanks
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