[Ovmsdev] Collecting information on the Fiat 500e

Guenther Huck privat at guentherhuck.at
Mon Jan 8 23:56:49 HKT 2018

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


From: Jason Perkins 
Sent: Monday, January 08, 2018 4:07 PM
To: OVMS Developers 
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. 



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