[Ovmsdev] Collecting information on the Fiat 500e

Jason Perkins perkins.jason at gmail.com
Wed Jan 10 02:31:24 HKT 2018


Guenther,

What I meant by my post is that the 500e is not OBDII compliant at a
software level - a "generic" scan tool won't talk to it. The underhood
emissions sticker confirms this. The Leaf is similar. Teslas have a
"fake" J1962 plug that will report the car's VIN, but not much else.

Regarding scan tools for the 500e, that's why I have AlfaOBD.

I've ordered some Arduino parts, so we should have some captures from the
telematics system soon!

-J

On Mon, Jan 8, 2018 at 5:51 PM, Mark Webb-Johnson <mark at webb-johnson.net>
wrote:

> What was the wrong information?
>
> It would be helpful if you could be specific and provide clarification.
>
> Regards, Mark
>
> On 8 Jan 2018, at 11:56 PM, Guenther Huck <privat at guentherhuck.at> wrote:
>
> Hello OMVS team, hello Jason
>
> I got your message about the 500e too  and I must tell you, please do not
> post wrong information about the Fiat 500e.
> The 500e of course have CAN Bus messages on OBDII. You have CAN BUS C (500
> K) and CAN Bus B (50 K). The only problem is , like on all vehicles CAN Bus
> Systems , that there is no public dbc.file.
> I am working on it and as soon as possible i will roll out on
> http://fiat500e.eu
>
> Guenther
>
>
> <image[1].png>
>
>
>
> *From:* Jason Perkins <perkins.jason at gmail.com>
> *Sent:* Monday, January 08, 2018 4:07 PM
> *To:* OVMS Developers <ovmsdev at lists.teslaclub.hk>
> *Subject:* [Ovmsdev] Collecting information on the Fiat 500e
>
> OVMS team,
>
> As an owner of a Fiat 500e I was very interested when I stumbled across
> this project on the TMC forums. The Fiat factory telematics system
> deactivates 3 years from the original vehicle sale and is non renewable. I
> think FCA wants to kill the whole system at this point (it's been replaced
> with the corporate UConnect system) so another solution would be ideal.
>
> I have a 2013 500e with deactivated telematics, and our roommate has a
> 2014 with working telematics. If any data could be captured from the car
> with working telematics (branded as Fiat Access) to assist integrating
> OVMS I'd love to help.
>
> The Fiat Access telematics provides vehicle location, battery level, tire
> pressure, setting the charge schedules, locking / unlocking the car, and
> starting the climate control. I believe the actual control unit was adapted
> from some kind of remote-disablement system used in europe (the Fiat
> literature calls this the Vehicle Tracking Module).
>
> The Fiat has a normal J1962 plug, but does not have OBDII protocol
> support. Like the Kia Soul the powertrain CAN on pin 6 / 14 and the body
> CAN on 1 / 9.
>
> There's no telling how long the telematics will keep working on our
> roommates '14, so doing a capture sooner than later would be good. I'm open
> to any suggestions on how best to do this. The car related diag tools I
> have on hand are: ELM327 Bluetooth, Ross-Tech VCDS (For VW / Audi
> Products), and AlfaOBD (which can talk to most of the modules in the 500e -
> but not the VTM :( ), and an adapter to swap the CAN wires so a standard
> interface can get to the Body CAN.
>
> Thanks!
>
> -J
>
>
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-- 
Jason Perkins
313 355 0085
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