Camera, Rear: Operation

The Rear View Camera (RVC) is powered by an ignition RUN feed circuit from the Power Distribution Center (PDC). A signal received through the backup lamp switch output circuit from the Body Control Module (BCM) enables the RVC so that it is only active when the transmission is shifted into the (R)  Reverse position or, with the camera delay feature ON, the image will remain on while in the (N)  Neutral and (D)  Drive position for 10 seconds, up to 13 km/h (8 mph) or until the user defeats the image by pressing the radio screen. In addition, the radio monitors messages on the Controller Area Network (CAN) data bus to determine the selected gear and overrides any other display to show the RVC video output whenever it detects that the transmission is in (R)  Reverse. A momentary blank radio screen immediately following the gearshift transition into the (R)  Reverse position is considered normal operation. The camera electronics receive a path to ground at all times.

The output of the camera is a video signal compatible to the National Television System Committee (NTSC) standard composite video M format, or NTSC-M. The video signal is delivered to the radio video display by camera signal and the camera return circuits that are arranged as a twisted pair, with an additional grounded foil jacket to protect the video signal from corruption due to stray radiated signals through the entire length of the vehicle but within the vehicle environment. The ground shield is terminated only at the video display (radio) end, not at the camera. Portions of these video signal wires are contained within the body wire harness and a jumper harness located between the radio and the body harness connector below the instrument panel at the right cowl side inner panel.

The active guidelines are internal to the camera. The Local Interface Network (LIN) bus is used to turn the RVC guideline feature ON/OFF using the BCM. The BCM bases the active guidelines ON/OFF bus message based on the Customer Programmable Feature located in radio settings.