The ECU has 3 connectors A-B-C

I'm trying to connect the DLC pins (Data Link Connector (OBDII)) to the ECU.
There is a pin #14 at the DLC (I think its gray), can someone tell me where this pin goes to the ECM ?
I think the DLC pin #14 is for CAN (could be a reserved pin by the manufacturer
for future use).
CAN =Controller Area Network

I have a service manual but I don't have the complete electrical troubleshooting book.

Thanks a million

 

Anyone?

Anyone with the wiring book and look for #14 wire at the DLC and where it is going?

Thanks

 

www.helminc.com