I am using a Freematics One+ B for my project and to avoid developing and testing in a car, i would like to simulate ODB messages. I already have a Vector CAN emulator (VN1610) which creates proper CAN messages.
The problem i am facing is, the CAN emulator i have just provides a GND,CAN_ HIGH and CAN_LOW. On the other hand, the ODB scanner (Freematics One+ B) has more pins that connect with the actual Car ODB port, namely:
4,5 : signal ground and chassis ground (i will hook them together for now)
6,14 : CAN_H, CAN_L (goes to corresponding can pins)
- 7,15, ... : Other vendor specific pins such as IS0 9141 (not related)
- 16 : Battery Voltage 12V
My question is, do i also need to hook up an external 12V battery to Pin 16 for this to work, or is there something i am missing and its not even possible to do this.