Audio System Image Display
The rear parking aid camera image is displayed by the audio system display when reverse is selected. To determine the transmission gear position and enable the camera display, the PCM sends the gear position message to the GWM on the HS-CAN1. The GWM then sends the message to the APIM via the HS-CAN3.
The camera is on any time it receives voltage (when the ignition is on), but a video signal is only generated under certain conditions. When reverse is selected, the camera continuously generates a video signal. When any gear except reverse is selected, the camera turns the video signal off when the vehicle speed reaches 16 km/h (10 mph), and turns the video signal on when vehicle speed falls below 8 km/h (5 mph). If the camera is not configured properly, some features may be inoperative. The camera sends the video signal on shielded twisted pair to the APIM, which displays the image on the audio system display.
The following parking aid camera system features are driver selectable:
- Visual park aid alert -- allows the driver to see the object causing the parking aid system to sound.
- Manual zoom -- allows the driver to manually zoom the image.
- Video delay -- allows the driver to see the image behind the vehicle after the vehicle is shifted out of reverse into any gear other than park.
The following camera system features are not driver selectable:
- Fixed guidelines -- assists the driver with aligning the vehicle with an object.
- Active guidelines -- displays the intended path of the vehicle based upon steering wheel input.
The audio system display settings menu is used to turn the visual park aid alert and video delay on and off. The visual park aid alert and video delay features are generated within the APIM.
To turn the manual zoom feature on and off, the driver uses an on-screen button located on the audio system display while in reverse. The driver generated commands originate at the audio system display, which is hardwired to the APIM. The APIM sends the driver generated commands over the HS-CAN3 to the GWM. The GWM then sends the commands to the BCM on the HS-CAN1. The BCM sends the zoom command to the rear parking aid camera via the LIN circuit. The zoom is generated by the rear parking aid camera.
The fixed and active guidelines are generated by the rear parking aid camera and are not selectable by the driver.