Toyota Avalon Service & Repair Manual: System Description

SYSTEM DESCRIPTION

GENERAL

(a) This system has a television camera assembly mounted on the luggage compartment door to display an image of the area behind the vehicle on the multi-display. The multi-display 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.

When the rear camera detection function of the television camera assembly detects a pedestrian within the detection area when reversing, a buzzer sounds and an icon is displayed on the multi-display to warn the driver.

(b) This system consists of the following components:

(1) Television camera assembly

(2) Radio and display receiver assembly

(3) Steering sensor

(4) ECM

(5) Main body ECU (multiplex network body ECU)

(6) Blind spot monitor sensor

(7) BKUP LP relay

(c) This system is equipped with a self-diagnosis system, which is operated on a designated window that appears on the multi-display.

FUNCTION OF COMPONENTS

(a) The television camera assembly controls the system by using information from the following components.

Item

Function

Television Camera Assembly

  • Mounted on the luggage compartment 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 radio and display receiver assembly.
  • Has a color video camera that uses a Complementary Metal Oxide Semiconductor (CMOS) and wide-angle lens.
  • Stops displaying the guide lines when an open signal is received for the luggage compartment door.
  • Performs overall control of the system by receiving signals from the sensor and ECUs.

Radio and Display Receiver 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 BKUP LP relay.
  • Transmits a setting information signal to the television camera assembly via CAN communication.
  • Receives diagnostic mode video signals from the 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 luggage compartment door is open.

Steering Sensor

Detects the angle of the steering wheel and transmits the resulting signals to the television camera assembly via CAN communication.

ECM

  • Transmits the vehicle information signal to the television camera assembly via CAN communication.
  • Transmits the reverse signal to the television camera assembly via CAN communication.

Main Body ECU (Multiplex Network Body ECU)

Transmits the luggage compartment door courtesy switch signal and vehicle information signal to the television camera assembly via CAN communication.

Blind Spot Monitor Sensor

Transmits the RCTA information signal to the television camera assembly via CAN communication.

BKUP LP Relay

Transmits the reverse signal to the radio and display receiver assembly.

DISPLAY MODE

(a) Rear view screen

*a

Guide Line Display Mode Switching Button

*b

Estimated Course Line Display Mode

*c

Parking Assist Guide Line Display Mode

*d

Distance Guide Line Display Mode

*e

Display Mode Switching Button

*f

Guide Line Display Mode Switching Button Pressed

HINT:

The screen changes to the wide rear view screen when the display mode switching button is selected.

(1) While the parking assist monitor is displayed on the multi-display, pressing the guide line display mode switching button switches the parking assist monitor display mode.

Parking Assist Monitor Display Mode

Parking Assist Monitor Display Mode

Distance Guide Lines

(Red)

Estimated Course Lines

(Yellow)

Distance Guide Line

(Yellow)

Vehicle Width Extension Guide Line

(Blue)

Distance Guide Line

(Blue)

Parking Assist Guide Lines

(Blue)

Vehicle Center Line

(Blue)

Estimated course line display mode

Displayed

Displayed

Displayed

Displayed

Displayed

Not displayed

Displayed

Parking assist guide line display mode

Displayed

Not displayed

Not displayed

Displayed

Not displayed

Displayed

Displayed

Distance guide line display mode

Displayed

Not displayed

Not displayed

Not displayed

Not displayed

Not displayed

Not displayed

(b) Wide rear view screen

*a

Guide Line Display Mode Switching Button

*b

Estimated Course Line Display Mode

*c

Parking Assist Guide Line Display Mode

*d

Distance Guide Line Display Mode

*e

Display Mode Switching Button

*f

Guide Line Display Mode Switching Button Pressed

HINT:

The screen changes to the rear view screen when the display mode switching button is selected.

(1) While the parking assist monitor is displayed on the multi-display, pressing the guide line display mode switching button switches the parking assist monitor display mode.

Parking Assist Monitor Display Mode

Parking Assist Monitor Display Mode

Distance Guide Lines

(Red)

Estimated Course Lines

(Yellow)

Distance Guide Line

(Yellow)

Vehicle Width Extension Guide Line

(Blue)

Distance Guide Line

(Blue)

Parking Assist Guide Lines

(Blue)

Vehicle Center Line

(Blue)

Estimated course line display mode

Displayed

Displayed

Displayed

Displayed

Displayed

Not displayed

Displayed

Parking assist guide line display mode

Displayed

Not displayed

Not displayed

Displayed

Not displayed

Displayed

Displayed

Distance guide line display mode

Displayed

Not displayed

Not displayed

Not displayed

Not displayed

Not displayed

Not displayed

DIAGNOSTIC FUNCTION OUTLINE

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

Click here

(b) The following items for the parking assist monitor system can be checked using the Techstream.

Item

Proceed to

DTC

Data List / Active Test

    Problem Symptoms Table

    System Diagram

    See More:

    Toyota Avalon Service & Repair Manual > Park / Neutral Position Switch: On-vehicle Inspection
    ON-VEHICLE INSPECTION PROCEDURE 1. SECURE VEHICLE (a) Fully apply the parking brake and chock a wheel. CAUTION: Make sure to apply the parking brake and chock a wheel before performing this procedure. If the vehicle is not secure and the shift lever is moved to N, the vehicle may suddenly move, poss ...

    Toyota Avalon Owners Manual

    Toyota Avalon Service & Repair Manual

    © 2020 Copyright www.tavalon.net
    0.028