Comments on: Reverse Engineering the Mazda CAN Bus – Part 1

By: Faz Jaxton

Faz Jaxton — Tue, 28 Sep 2010 02:45:33 +0000

[...] few months ago, I found a blog entry of a similar hobbyist who also had a Mazda3. This time, I wasn’t taking no for an answer. [...]

By: Brian in USA

Brian in USA — Fri, 03 Sep 2010 02:37:42 +0000

Doing some deep Internet searching on a project I need a guru on. Think it might be related to can-bus but not 100% sure. My motorcycle is a Kawasaki 1400gtr (concours 14 they call it here in the USA). It has an onboard computer which displays it info on a small LCD between the speedo and tach. I want to use a gps mounted in the bike somewhere and have the basic navigation data show up on the LCD. Was hoping to find a way to patch it in or even put an inline switch to the LCD feed where I can toggle between the two sources. And input or interest.

By: Steven Ferguson

Steven Ferguson — Sun, 27 Jun 2010 19:32:45 +0000

Hi Madox

Do you have .dbc files for any of the work you have done?

In particular, I am interested in looking at HS and MS CAN IDs for Ford products in general, ideally for Ford medium-duty trucks (e.g. F450)

Right now, EEC messages and fuel economy are most important. PLease write back or call to see if we can work together

Steve

By: Issues with Polaris 3035 GPS/LCD/DVD unit

Issues with Polaris 3035 GPS/LCD/DVD unit — Mon, 10 May 2010 13:00:50 +0000

[...] be setting the Mazda clock, not the Polaris clock. CAN bus looks like fun for some hacking… Madox.NET Still hunting to find a wiring diagram to get the right colour wires. Might have to trace from the [...]

By: Issues with Polaris 3035 GPS/LCD/DVD unit

Issues with Polaris 3035 GPS/LCD/DVD unit — Mon, 10 May 2010 12:52:36 +0000

[...] be setting the Mazda clock, not the Polaris clock. CAN bus looks like fun for some hacking… Madox.NET Reverse Engineering the Mazda CAN Bus – Part 1 Still hunting to find a wiring diagram to get the right colour wires. Might have to trace from the [...]

By: Madox

Madox — Tue, 29 Dec 2009 03:28:54 +0000

Pins 3 and 11 are the MS-CAN. 6 and 14 are the HS-CAN.

(Check the comments above)

By: rick retter

rick retter — Tue, 29 Dec 2009 00:45:42 +0000

normally CAN at the J1962 connector “uses” pins 6 (CAN H) and 14 (CAN L).
my USA market 2005 mazda 3 also has pins at 3 and 11. Are these also CAN? (i understand volvo uses pins 3 and 11 for CAN.)

By: Necros

Necros — Fri, 04 Dec 2009 11:28:13 +0000

I could only see the options listed via the global site, not the australian one and I think it is a special SKU option. I’m sure I could find one online somewhere.

Im not too worried about the power draw at this stage as I wont be running all of the electronics from the RX8 so there should be some power left over. If I do have issues I can always use an uprated alternator.

Bugger about the steering wheel buttons. I was hoping to use them to control the LCD dash via the CAN network, I guess I could still do it with them wired to the laptops keyboard

The reason I ask about the ABS is I wont be running the RX8 hubs which have the sensors. I am hoping the ABS computer will still send a speed signal if it gets pulses from a reed switch instead of the hub sensors.

By: Necros

Necros — Fri, 04 Dec 2009 11:20:15 +0000

How come?

By: Madox

Madox — Fri, 04 Dec 2009 09:36:53 +0000

Does the Australian version come with 3G / GPS or do you have to get it as a special SKU option? Have you considered the power draw and all? Oh you’re tempting me….

1)Yes, the buttons I believe wire directly to the CD player on my car. I get the button presses very indirectly via the headunit LCD displays… (Says “VOL x” for example on volume changes)

2)I’m not sure. There is a separate message where the 4 ABS messages transmitted, so you should at least get that I suppose…