Jumpers / jumpers J1 and J2, mounted on the relay unit board, are responsible for the timer modes of the camera. Jumper J1, located closer to the center of the board, is responsible for turning on the camera for 10 seconds when the ACC signal (ie for turning on the ignition). Jumper J2, located closer to the edge of the relay unit board, is responsible for activating the timer delay of the camcorder after turning off the rear gear (image from the rear view camera will be available on the monitor for 10 seconds after turning off the rear gear).