Object Detection Description and Operation Front Vision Camera
The object detection system can help a driver determine how close an object is to the front bumper within a predefined forward field of view. In Japan, a front vision camera system is necessary for vehicles with a high ground clearance. The system is composed
of a video camera located on the top of the roof above the a-pillar on the passenger side, an electrical harness, an on/off switch for the camera, and a 3.5 inch LCD display integral to the inside rearview mirror (ISRVM). All mirror features will default
to ON with each ignition cycle. The LCD can be disabled by pressing the forward vision ON/OFF button when the ignition switch is in the ACCESSORY or RUN position. When the object detection power button is pressed the indicator to the right of the power button
will turn off verifying that the LCD is OFF. However, the roof top camera system is disabled by pressing the camera button located on the instrument panel. An indicator next to the camera button will turn off verifying that the camera system is OFF
The mirror and the camera receive an active high (12 volt) signal through the camera switch to enable the forward vision system. The same control signal will also disable the auto dimming feature of the ISRVM. The LCD display will deploy in less
than 3 seconds and remain deployed until the system is turned off. Once the camera switch is turned off the display will retract in 2-3 seconds. Anything preventing the display from fully extending will cause the display to retract.
The mirror can be placed into a service mode to facilitate screen cleaning. With the ignition in the ACCY position, press and hold the rear vision power button for 5-8 seconds or until the display is deployed. The display will remain deployed
for 30 seconds. Do not attempt to pull out the display as that may cause internal damage.
The object detection system has the following diagnostic capabilities:
• | The front vision ON/OFF indicator will flash with the absence of a proper video signal |
• | The front vision ON/OFF indicator will flash when interference of the display deployment has been detected |
To begin diagnostics refer to
Diagnostic Starting Point - Object Detection.
Object Detection Description and Operation Rear Vision Camera
Rear Vision Camera System Operation - H3
The components used in the rear vision camera system are the camera located at the rear of the vehicle, the rearview image display module, and the inside rearview mirror, which houses the LCD display.
When the vehicle is placed in REVERSE, the body control module (BCM) sends a 12 volt signal to the rearview image display module. This signal indicates that rear vision camera operation is required. Upon receipt of this signal, the rearview image display
module will supply ignition voltage to the rear view camera. The rear vision camera transmits the video signal to the navigation radio through discrete + and - signal circuits. A metallic foil encases the video signal circuits and is tied to a shield ground
circuit. This shield is designed to reduce electronic interference which may degrade the video signal and cause a distorted or otherwise degraded image.
If desired, the rear vision camera may be manually disabled. Refer to the navigation system owners manual for instructions on manually disabling and enabling the rear vision camera system. The following conditions may cause a degraded rear vision camera
image:
• | Ice, snow, or mud has built up on the rear vision camera |
• | Extreme light conditions, such as glare from the sun or the headlights of another vehicle |
• | Damage to the rear of the vehicle |
• | Extreme high or low temperatures or extreme temperature changes |
Rear Vision Camera System Operation - H3T
The components used in the rear vision camera system are the camera located at the rear of the vehicle and the inside rearview mirror, which houses the LCD display.
When the vehicle is placed in REVERSE, the body control module (BCM) sends a 12 volt signal to the inside rearview mirror and the rearview camera. This signal indicates that rear vision camera operation is required. Upon receipt of this signal, the mirror
will begin the power up cycle for the LCD display and the camera will also power up. The rear vision camera transmits the video signal to the inside rearview mirror through discrete + and - signal circuits. A metallic foil encases the video signal circuits and
is tied to a shield ground circuit. This shield is designed to reduce electronic interference which may degrade the video signal and cause a distorted or otherwise degraded image.
If desired, the rear vision camera may be manually disabled. Refer to the navigation system owners manual for instructions on manually disabling and enabling the rear vision camera system. The following conditions may cause a degraded rear vision camera
image:
• | Ice, snow, or mud has built up on the rear vision camera |
• | Extreme light conditions, such as glare from the sun or the headlights of another vehicle |
• | Damage to the rear of the vehicle |
• | Extreme high or low temperatures or extreme temperature changes |