Technical 500X: Horn Wire & CAN Connections

Currently reading:
Technical 500X: Horn Wire & CAN Connections

JDW1

New member
Joined
Mar 25, 2016
Messages
2
Points
1
In the past, the Horn wire for the Fiat 500/595/Abarth and Panda, as well as Alfa Romeo Mito and Giulietta, was colored GREEN/WHITE and located inside the steering column. Applying a (-) Ground to that GRN/WHT wire would honk the horn. That same wire color and location has been consistent in those cars from about 2008 to present. But does anyone know if the 2016 Fiat 500X also uses GRN/WHT with Negative (-) control polarity?

Also, all the cars I just listed have been using the following CAN-BUS connections inside the OBD plug:

Pin-1 = CAN-H
Pin-9 = CAN-L

Does anyone know if the new 500X still uses the same pins in the OBD, or if the OBD can even be used at all now for CAN connections? (The purpose would be to connect a car alarm, radar sensor, info display, etc.)


Thank you.
 
I had the chance to check a right-side drive, 2016 Fiat 500X this week (no factory alarm, no remote start, no PANIC button, but with Enter-N-Go smart-key), so I'll answer my own question...

Pin-6 = CAN-H
Pin-14 = CAN-L
Horn = GRN/WHT, (-)GND control, located in the steering column

Furthermore, the CAN speed has changed. From about 2008 until now, the Fiat 500 & Panda, Alfa Romeo MITO and Giulietta have all used slow speed CAN, but the 500X uses 500kbps high speed CAN.

Hope this info helps those who have the same question I did.
 
Back
Top