I need to wire a relay to get one of the two DC motors to turn 10 s and then stop for 2 seconds, my board is the Arduino / Genuine One. I have not done Arduino quite a bit and I need someone to help me, thanks in advance. 
Attached photo of my car:
Your car pic looks nice, but it's nearly impossible to see how things are connected with criss-crossing wires, obstructions and shadows, we don't have holograms yet so we can't pick the picture off the screen to tilt it and see what's hidden behind an obstruction or shine light into a shadow. Can you post a wiring diagram? A simple hand drawn diagram photographed or scanned will do.
BTW, "turn the motor 10 seconds, stop for 2" then? Please post your code, if any.
HowToPostCode