I registered for 72 hours on KiaTechInfo, interesting stuff in there for the price. I found some details about CAN:
- I confirm what I've seen, there is 2 CAN links on the OBD-II connector (connectors are reverse pinout on the schematics, this is confusing, I'll use the same pinout as on https://en.wikipedia.org/wiki/On-board_diagnostics ).
- Primary CAN is called C-CAN (Communication?), located on standard pins 6 (high) and 14 (low). From the other schematics, a lot of stuff is connected to C-CAN, including the main battery.
- A secondary CAN is called M-CAN (Multimedia?), located on pins 1 (high) and 9 (low). From the schematics, at least the A/V navigation unit and the instrument cluser is connected to this bus.
- Pin 12 is K-Line
- Pin 3 is Vehicle Speed Signal
There are also other CAN networks, like H-CAN and B-CAN, but they are not available from the OBD-II port. So this is different from the Leaf, which has a dedicated EV-CAN. Here, the EV information will be splitted between the C-CAN and the M-CAN.
There is no information on CAN messages on the site (I would not expect this anyway) but all DTC codes are documented. The CAN bus speeds are also documented at the same place:
- Speed : 1Mbit/s for high speed CAN (probably H-CAN), up to 125 kbit/s on low speed CAN
- Using ISO 11898 standard
jcallan: Do you have an actual service manual for the 2015/2016 as a PDF document or something?