Optimus

 
S_CAN_GND
 
System CAN bus ground
EZ139X1:C17 - EZX42:3/6 - EZX43:3/6 - EZX44:9 - (-EZX44:9 - EZX44:1 - to GND via function programming plug 4512 130 54441 Optimus RAD only)
part of: system CAN