openinverter forum

I just picked up a CCS charge port from a Chevy BOLT and I started looking into getting the PLC module running outside of the car to facilitate CCS combo charging in our own EV projects.

Information that I know so far:

• The PLC is called the K190 module and is found under the driver's seat (see diagram below).
  It uses 2 MX150 locking connectors.
  comms are using a protocol called "GMLAN serial" never heard of it before nor do I know what it is but something I need to research more on.
  Full pinouts for the module.
  The HV sense board is located in the HVJB (see pictures of the HVJB I cracked open).
  Looks like a resistor divider and TI isolator IC similar layout to the KLE on the i3.

EDIT: GMLAN serial looks like CAN: https://www.dieselplace.com/threads/low ... ata.79735/

Nice find! Where is the actual PLC/CCS controller?

johu wrote: ↑Wed Jan 05, 2022 12:51 pm Nice find! Where is the actual PLC/CCS controller?

It's module #9 in on the photo I linked.

It's really terrible color choice on my part to circle it with so here is a better one below.

Also thinking about it a little more leads me to believe that the voltage sense and other telemetry is taken care of by some ECU somewhere else in the car. This is because the pinouts do not mention any analog signals going into the board. Bottom this might suck for our purposes since there is more stuff to emulate.