Durango 2WD V8-5.7L Hybrid (2009)
Rear Vision Camera: Description and Operation
Rear Camera - Operation
OPERATION
The Rear View Camera (RVC) is powered by a battery feed received through the backup lamp switch output circuit from the Totally Integrated Power
Module (TIPM) so that is only active when the transaxle is shifted into the REVERSE position. In addition, the radio receiver monitors messages on the
Controller Area Network (CAN) data bus to determine the selected transaxle gear and overrides any other display to show the RVC video output,
whenever it detects that the transaxle is in REVERSE. A momentary blank video display screen immediately following the gearshift transition into the
REVERSE position is considered normal operation. The camera electronics receive a path to ground at all times through a takeout and eyelet terminal of
the liftgate wire harness that is secured by a ground screw to the right side of the liftgate inner panel.
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 unit through the entire length of the vehicle 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
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 liftgate light bar wire harness, the liftgate wire harness, 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.
