PARKING ASSIST MONITOR SYSTEM SYSTEM DESCRIPTION

GENERAL

1. This system has a rear television camera assembly mounted on the back door to display an image of the area behind the vehicle on the display. The display panel also shows a composite view consisting of the area behind the vehicle and parking guide lines to assist the driver in parking the vehicle by monitoring the area behind the vehicle.

2. This system consists of the following components:

   
   

   1. Rear television camera assembly

   2. Radio receiver assembly

   3. Multi-display assembly

   4. Spiral with sensor cable sub-assembly

   5. ECM

   6. Main body ECU (multiplex network body ECU)

   7. Blind spot monitor sensor LH*1

   8. Clearance warning ECU assembly*2

      
      

      • *1: w/ Blind Spot Monitor System

      • *2: w/ LEXUS Parking Assist-sensor System

3. This system is equipped with a self-diagnosis system, which is operated from a designated window that appears on the multi-display assembly.

FUNCTION OF COMPONENTS

1. The radio receiver assembly controls the system by using information from the following components.

   Item	Function
   Rear Television Camera Assembly	Mounted on the back door to transmit a composite image of the area behind the vehicle and guide lines calculated based on signals received from each ECU, to the multi-display. Has a color video camera that uses a Complementary Metal Oxide Semiconductor (CMOS) and a wide-angle lens. Stops displaying the guide lines when an open signal is received for the back door. Performs overall control of the system by receiving signals from the sensor and ECUs.
   Multi-display assembly	Receives video signals which contain a composite image of the area behind the vehicle taken with the television camera assembly and guide lines calculated based on signals received from each ECU. Performs control of the system by receiving the reverse signal from the BK UP LP relay. Receives diagnostic mode video signals from the rear television camera assembly. Displays "You can not calibrate the camera when the door is open. Please close the door." on the back camera position setting screen when the back door is open.
   Radio Receiver Assembly	Transmits the setting information signal to the rear television camera assembly via CAN communication.
   Spiral with Sensor Cable Sub-assembly	Detects the angle of the steering wheel and transmits the resulting signals to the rear television camera assembly via CAN communication.
   ECM	Transmits the vehicle information signal to the rear television camera assembly via CAN communication.
   Main Body ECU (Multiplex Network Body ECU)	Transmits a back door courtesy switch signal to the rear television camera assembly through CAN communication.
   Blind Spot Monitor Sensor*1	Transmits the RCTA information signal to the rear television camera assembly via CAN communication.
   Clearance Warning ECU Assembly*2	Transmits the sonar information signal to the rear television camera assembly via CAN communication.

   
   

   • *1: w/ Blind Spot Monitor System

   • *2: w/ LEXUS Parking Assist-sensor System

OPERATION EXPLANATION

1. The multi-display receives the reverse signal when the engine switch on (IG) and the shift lever is moved to R. After receiving the reverse signal, the multi-display assembly switches to the parking assist monitor system.

DISPLAY MODE SETTING

DIAGNOSTIC FUNCTION OUTLINE

1. This parking assist monitor system has a diagnostic function displayed on the multi-display assembly. This function enables calibration (adjustment and verification) of the parking assist monitor system.

   Click here

2. The following items for the parking assist monitor system can be checked using the GTS.

   Item	Proceed to
   DTC	Click here
   Data List / Active Test	Click here