For a 2016 CX-5 bench setup with a GoDiag V200, finding exact pinouts is tough as manufacturers don't typically release them for public tuning. You'll need to locate constant 12V, ground, and the CAN-H/CAN-L data lines on the ECU connector. These are usually identified by voltage and twisted pairs for CAN. Specialized tuning tools often come with these diagrams. Without a specific diagram, carefully probing with a multimeter and oscilloscope is your best bet, but proceed with extreme caution to avoid ECU damage.
Try checking this video and see if it helps: