"G-INTIOR2IOU"
Circled in Yellow is where the harness is plugged into the new IOU module.
First you want to remove the locking clip by prying back the locks on each side to release the lock.
Second pull up on the retaining clip on Pins 11 & 12, one at a time then pull the pin out but pulling the wire.
Third reverse the white and gray wires, push the pins back in till you hear a click.
Forth push the lock back down till you hear two clicks.
Finally reinstall cable.