Lexus ES manuals

Lexus ES: System Description

SYSTEM DESCRIPTION

GENERAL

(a) This system has front, passenger side, driver side and rear television camera assemblies mounted around the vehicle to display around the vehicle on the multi-display assembly. The display panel also shows a composite view consisting of the area behind the vehicle and parking guidelines to assist the driver in parking the vehicle by monitoring the area around the vehicle.

(b) This system consists of the following components:

(1) Parking assist ECU

(2) Panoramic view monitor switch (No. 2 combination switch assembly)

(3) Rear television camera assembly

(4) Front television camera assembly

(5) Side television camera assembly LH

(6) Side television camera assembly RH

(7) Multi-display assembly

(8) Network gateway ECU

(9) Steering Sensor

(10) Skid control ECU

(11) Main body ECU (multiplex network body ECU)

(12) Clearance warning ECU assembly

(13) Hybrid vehicle control ECU

(14) Blind spot monitor sensor

(15) Radio receiver assembly

(c) This system is equipped with a self-diagnosis system, which is operated from a designated window that appears on the multi-display assembly, just as in the audio and visual system*1 or navigation system*2.

  • *1: w/o Navigation System
  • *2: w/ Navigation System

FUNCTION OF COMPONENTS

(a) The parking assist ECU controls the system by using information from the following components.

Item

Function

Rear Television Camera Assembly

  • Generates a video feed showing the rear side of the vehicle and transmits the video to the parking assist ECU
  • Transmits a camera detection buzzer request signal to the blind spot monitor sensor via CAN communication.

Front Television Camera Assembly

Generates a video feed showing the front side of the vehicle and transmits the video to the parking assist ECU

Side Television Camera Assembly LH

Generates a video feed showing the left side of the vehicle and transmits the video to the parking assist ECU

Side Television Camera Assembly RH

Generates a video feed showing the right side of the vehicle and transmits the video to the parking assist ECU

Parking Assist ECU

  • Turns the panoramic view monitor system ON and OFF according to the display conditions, based on the received panoramic view monitor switch (No. 2 combination switch assembly) signals, shift position signals, and vehicle speed signals
  • Sends the display request signals for the panoramic view and wide front view screen, panoramic view and side clearance view screen, panoramic view and rear view screen, panoramic view and wide rear view screen, see through view screen, or moving view screen to the radio receiver assembly according to the display conditions, based on the received panoramic view monitor main switch signals, shift position signals, and vehicle speed signals
  • Sends the display switching request signals for the panoramic view and wide front view screen, panoramic view and side clearance view screen, panoramic view and rear view screen, panoramic view and wide rear view screen, see through view screen, or moving view screen to the radio receiver assembly according to the display conditions, based on the received outer mirror retraction signals
  • Displays the composite image of the surrounding area images taken by each camera and the image calculated from vehicle status information such as the steering angle signals on the multi-display assembly screen
  • Renders each configuration page in the diagnosis window and outputs the screen to the multi-display assembly
  • Stops displaying the buttons and guidelines on the panoramic view and rear view monitor screen, or panoramic view and wide back view monitor screen when the screen is being displayed and a luggage compartment door open status signal is received
  • Stores each configuration setting from the diagnosis window

Panoramic View Monitor Switch (NO. 2 Combination Switch Assembly)

Transmits switch operation signals to the parking assist ECU

Multi-display Assembly

Displays image information received from the parking assist ECU.

Radio Receiver Assembly

  • Displays the video signal from the parking assist ECU on the multi-display.
  • Sends the screen status to the parking assist ECU, such as when the screen display mode switches and the automatic display mode turns on and off.

Steering Sensor

Transmits the steering angle signals and sensor status signals to the parking assist ECU via the CAN communication

Skid Control ECU

Transmits the vehicle speed signals, drive type signals, and system status signals to the parking assist ECU via the CAN communication

Hybrid Vehicle Control ECU

Sends the shift position signal to the BKUP LP relay.

Shift Lever Position Sensor

Sends the shift position signal to the hybrid vehicle control ECU.

Main Body ECU (Multiplex Network Body ECU)

  • Sends the luggage compartment door courtesy light switch signal to the parking assist ECU via the CAN communication system.
  • Sends the mirror retract request signal to the parking assist ECU via the CAN communication system

Clearance Warning ECU Assembly

Transmits information from each sonar via the CAN communication

Blind Spot Monitor Sensor

Transmits the RCTA information signal via CAN communication

PANORAMIC VIEW SCREEN DISPLAY

(a) See-through view screen

(1) The entire area surrounding the vehicle is displayed.

*a

Vehicle interior view

*b

Upper view

(b) Moving view screen

(1) The entire area surrounding the vehicle is displayed.

*a

Slant upper view

*b

Upper view

(c) Panoramic view and Cornering view screen (Models with 12.3 Inch Multi-display)

*a

When turning left

*b

When turning right

Panoramic view and Cornering view screen Description

Signal

Name

Color

(1)

Front distance guide line

Blue

(2)

Front wheel ground contact line

Gray

(3)

Vehicle width parallel line

Gray

(4)

Forward estimated course line

Yellow

(d) Panoramic view and wide front view screen

*a

Estimated course line display mode

*b

Distance guide line display mode

Panoramic View and Wide Front View Screen Description

Signal

Name

Color

Panoramic View and Wide Front View Screen

Estimated course line display mode

Distance guide line display mode

(1)

Front distance guide line

Blue

Displayed

Displayed

(2)

Front forward estimated course line

Yellow

Displayed

Not displayed

(e) Panoramic View and Side Clearance View Screen (Models with 12.3 Inch Multi-display)

*a

When the outer rear view mirror assembly is deployed.

-

-

Two-side View Screen Description

Signal

Name

Color

(1)

Front distance guide line

Blue

(2)

Front wheel ground contact line

Gray

(3)

Vehicle width parallel line

Gray

(f) Panoramic view and rear view screen

*a

Estimated course line display mode

*b

Parking guide line display mode

*c

Distance guide line display mode

*d

Display mode switching button

HINT:

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

Panoramic View and Rear View Screen Description

Signal

Name

Color

Panoramic View and Rear View Screen

Estimated course line display mode

Parking guide line display mode

Distance guide line display mode

(1)

Front distance guide line

Blue

Displayed

Displayed

Displayed

(2)

Rear distance guide line

Red

Displayed

Displayed

Displayed

(3)

Rear vehicle width extension line

Blue

Displayed

Displayed

Not displayed

(4)

Parking guide line

Blue

Not displayed

Displayed

Not displayed

(5)

Rear distance guide line

Blue

Displayed

Not displayed

Not displayed

(6)

Side estimated course line

Yellow

Displayed

Not displayed

Not displayed

(7)

Rear estimated course line

Yellow

Displayed

Not displayed

Not displayed

(8)

Vehicle center line

Blue

Displayed

Displayed

Not displayed

(g) Panoramic view and rear view screen

*a

Estimated course line display mode

*b

Parking guide line display mode

*c

Distance guide line display mode

*d

Display mode switching button

HINT:

In the rear view screen, the screen display mode can be switched by pressing the guide line display mode switching button or rear view screen on the screen.

Panoramic View and Rear View Screen Description

Signal

Name

Color

Panoramic View and Rear View Screen

Estimated course line display mode

Parking guide line display mode

Distance guide line display mode

(1)

Front distance guide line

Blue

Displayed

Displayed

Displayed

(2)

Rear distance guide line

Red

Displayed

Displayed

Displayed

(3)

Rear vehicle width extension line

Blue

Displayed

Displayed

Not displayed

(4)

Parking guide line

Blue

Not displayed

Displayed

Not displayed

(5)

Rear distance guide line

Blue

Displayed

Not displayed

Not displayed

(6)

Side estimated course line

Yellow

Displayed

Not displayed

Not displayed

(7)

Rear estimated course line

Yellow

Displayed

Not displayed

Not displayed

(8)

Vehicle center line

Blue

Displayed

Displayed

Not displayed

(h) Side view screen (Models with 12.3 Inch Multi-display)

*a

Side view and wide front view screen

*b

Side view and rear view screen

*c

Side view and wide rear view screen

-

-

HINT:

Refer to the content of panoramic view and rear view screen and panoramic view and wide front view screen for information about the rear view and wide front view screens.

(i) Rear camera detection function screen

*a

Panoramic view and rear view screen

*b

Panoramic view and wide rear view screen

*c

Rear camera detection icon

-

-

(j) Side View and Wide Front View Screen (Models with 8 Inch Multi-display)

*a

When the outer rear view mirrors are retracted

-

-

Item

Description

(1)

Wide Front View

An image captured by the front television camera assembly of the area in front of the vehicle.

(2)

Side View (Right Side)

An image of the area to the right of the vehicle captured by the side television camera assembly RH.

(3)

Intuitive Parking Assist Information

If a stationary object is detected when the intuitive parking assist is activated, the approximate distance between the vehicle and the stationary object is displayed.

(4)

Vehicle Width Parallel Line (Blue)

A vehicle width guide line including the outer rear view mirror assembly.

(5)

Front Tire Contact Line (Blue)

A guide line showing the front right tire contact position.

(6)

Rear Tire Contact Line (Blue)

A guide line showing the rear right tire contact position.

(k) Side View and Rear View Screen (Models with 8 Inch Multi-display)

*a

When the outer rear view mirrors are retracted

-

-

Item

Description

(1)

Rear View

An image captured by the rear television camera assembly of the area to the rear of the vehicle.

(2)

Side View (Right Side)

An image of the area to the right of the vehicle captured by the side television camera assembly RH.

(3)

Intuitive Parking Assist Information

If a stationary object is detected when the intuitive parking assist is activated, the approximate distance between the vehicle and the stationary object is displayed.

(4)

Vehicle Width Parallel Line (Blue)

A vehicle width guide line including the outer rear view mirror assembly.

(5)

Front Tire Contact Line (Blue)

A guide line showing the front right tire contact position.

(6)

Rear Tire Contact Line (Blue)

A guide line showing the rear right tire contact position.

(l) Two-side View Screen (Models with 8 Inch Multi-display)

*a

When the outer rear view mirror assembly is deployed.

-

-

Item

Description

(1)

Side View (Front Left Side)

An image captured by the side television camera assembly LH of the area to the front left side of the vehicle.

(2)

Side View (Front Right Side)

An image captured by the side television camera assembly RH of the area to the front right side of the vehicle.

(3)

Front Distance Guide Line (Red)

These lines are distance guide lines showing the distance forward from the edge of the front bumper. (Approximately 0.5 m (1.6 ft.))

(4)

Vehicle Width Parallel Line (Blue)

A vehicle width guide line including the outer rear view mirror assembly.

(5)

Auto Mode Button

Can be used to turn the automatic display mode on and off. When the automatic display mode is on, an indicator inside the button illuminates.

(6)

Front Tire Contact Line (Blue)

A guide line showing the front tire contact position.

(7)

Camera Direction Display Vehicle Icon

Indicates that the "side simultaneous view" is displayed.

(8)

Warning Message

Warns the driver according to the message on the display.

(9)

Intuitive Parking Assist Information

  • If a stationary object is detected when the intuitive parking assist is activated, the approximate distance between the vehicle and the stationary object is displayed.
  • When the intuitive parking assist system detects an obstacle, the distance and direction to the obstacle is superimposed on the screen.

PANORAMIC VIEW SCREEN DESCRIPTION

(a) Manual display mode

(1) When the panoramic view monitor switch is pressed with the power switch on (IG) or the engine started, the panoramic view monitor system switches to a screen shown below according to the shift lever position

Screen Transition Chart (Manual Display Mode with 12.3 Inch Multi-display)

*a

Shift position in any position other than P or R.

*b

Shift position in P and intelligent clearance sonar system on

*c

Shift position in R

*d

Panoramic view and wide front view screen

*e

Panoramic view and side clearance view screen

*f

Navigation screen, etc.

*g

See-through view screen

*h

Moving view screen

*i

Panoramic view and rear view screen

*j

Panoramic view and wide rear view screen

Screen Transition Conditions (Manual Display Mode with 12.3 Inch Multi-display)

No.

Screen Transition Conditions

(1)

Panoramic view monitor main switch is pressed

(2)

Shift position is moved to R

(3)

Shift position is moved to other than P or R

(4)

Shift position is moved to other than P or R and operation (1) is performed

(5)

"MAP/VOICE" switches, etc. on the multi-display assembly are pressed

(6)

Operation (1) is performed with the shift position in P

(7)

Shift position is moved to P

(8)

Display mode switching button or wide rear view screen is selected

(9)

Display mode switching button or rear view screen is selected

(10)

Moving view switch button is selected

(11)

See through view switch button is selected

Screen Transition Chart (Manual Display Mode with 8 Inch Multi-display)

*a

Shift lever not in P or R

*b

Shift lever in P and intelligent clearance sonar system system on

*c

Shift lever in R

*d

Panoramic view and wide front view screen

*e

Two-side view screen

*f

Audio screen, etc.

*g

See-through view screen

*h

Moving view screen

*i

Panoramic view and rear view screen

*j

Wide rear view screen

*k

Narrow rear view screen

-

-

Screen Transition Conditions (Manual Display Mode with 8 Inch Multi-display)

No.

Screen Transition Conditions

(1)

Panoramic view monitor switch is pressed

(2)

Shift lever is moved to R

(3)

Shift lever is moved to other than P or R

(4)

Shift lever is moved to other than P or R and operation (1) is performed

(5)

"HOME" switches, etc. on the multi-display assembly are pressed

(6)

Operation (1) is performed with the shift lever in P

(7)

Shift lever is moved to P

(8)

Display mode switching button or rear view screen is selected

(9)

Display mode switching button or wide rear view screen is selected

(10)

Display mode switching button or narrow rear view screen is selected

(11)

Moving view switch button is selected

(12)

See through view switch button is selected

HINT:

If the panoramic view monitor main switch is pressed at a vehicle speed of approximately 12 km/h (7 mph) or lower, the panoramic view monitor system screen is displayed. If the vehicle speed exceeds approximately 12 km/h (7 mph), the display switches to the navigation screen or information settings screen.

(b) Screen transition chart (automatic display mode)

(1) When the shift position is not in P or R, in addition to switching screens by pressing the panoramic view monitor main switch, the automatic display mode can be selected by pressing the automatic display mode switching button.

*a

Panoramic view and wide front view screen

*b

Panoramic view and side clearance view screen

*c

Automatic display mode switching button

-

-

Automatic Display Mode Switching Button

(Indicator in Button)

Screen Switching Mode

ON

(Illuminated)

Automatic display mode

OFF

(Not illuminated)

Manual display mode

HINT:

  • In the automatic display mode, press the panoramic view monitor switch or panel switch to switch screens in the same way as the manual display mode.
  • When switching to the audio screen, etc. in the automatic display mode, the display switches to the screen that was displayed last. However, the display switches to the panoramic view and wide front view screen if the shift lever is not in P or R after the power switch is turned from off to on (IG).

(2) The automatic display mode automatically switches the display according to the vehicle status.

Screen Transition Chart (Automatic Display Mode)

*a

Shift position in any position other than P or R.

*b

Panoramic view and wide front view screen

*c

Panoramic view and side clearance view screen

*d

Navigation screen, etc.

Screen Transition Conditions (Automatic Display Mode)

No.

Screen Transition Conditions

*: The panoramic view and wide front view screen is the first screen displayed after the power switch was turned off.

(1)

Panoramic view monitor switch is pressed

(2)

Current location switches, etc. on the multi-display assembly are pressed

(3)

Vehicle speed changes from above approximately 10 km/h (6 mph) to approximately 10 km/h (6 mph) or lower. The screen that was last displayed is displayed on the multi-display assembly.*

(4)

Vehicle speed changes from approximately 12 km/h (7 mph) or lower to above approximately 12 km/h (7 mph)

(c) Panoramic View Zoom Function (Models with 12.3 Inch Multi-display)

(1) When detail within the image on the panoramic view screen is too small and difficult to see, the user can magnify the image by selecting one of the 2 areas on the panoramic view screen.

Screen Transition

*a

Panoramic view and wide front view screen displayed while shift lever is not in P or R

*b

Panoramic view and rear view screen displayed

*c

Panoramic view and wide front view screen

*d

Panoramic view and wide front view screen (Front view magnified)

*e

Panoramic view screen

*f

Panoramic view and rear view screen

*g

Panoramic view and rear view screen (Front view magnified)

-

-

Screen Transition Conditions

No.

Screen Transition Conditions

(1)

Any of the 2 areas on the panoramic view screen is selected while the vehicle speed is approximately 12 km/h (7 mph) or less and the intelligent clearance sonar system is turned on.

(2)

The panoramic view zoom screen is selected, or either of the following conditions is met:

  • The vehicle speed changes from approximately 12 km/h (7 mph) or less to over approximately 12 km/h (7 mph).
  • The intelligent clearance sonar system is turned off.

(d) Panoramic View Zoom Function (Models with 8 Inch Multi-display)

(1) When detail within the image on the panoramic view screen is too small and difficult to see, the user can magnify the image by selecting one of the 4 areas on the panoramic view screen.

Screen Transition

*a

Panoramic view and wide front view screen displayed while shift lever is not in P or R

*b

Panoramic view and rear view screen displayed

*c

Panoramic view and wide front view screen

*d

Panoramic view and wide front view screen (Front right view magnified)

*e

Panoramic view screen

*f

Panoramic view and rear view screen

*g

Panoramic view and rear view screen (Front right view magnified)

-

-

Screen Transition Conditions

No.

Screen Transition Conditions

(1)

Any of the 4 areas on the panoramic view screen is selected while the vehicle speed is approximately 12 km/h (7 mph) or less and the intelligent clearance sonar system is turned on.

(2)

The panoramic view zoom screen is selected, or either of the following conditions is met:

  • The vehicle speed changes from approximately 12 km/h (7 mph) or less to over approximately 12 km/h (7 mph).
  • The intelligent clearance sonar system is turned off.

(e) When the outer rear view mirror assembly is retracted

(1) When the outer rear view mirrors are retracted, the screen changes according to the current screen display, as follows.

*a

See through view screen

*b

Moving view screen

*c

Panoramic view and wide front view screen

*d

Panoramic view and side clearance view screen

*e

Panoramic view and rear view screen

*f

Panoramic view and wide rear view screen

*g

Two side view and wide front view screen

*h

Two side view and rear view screen

*i

Two side view and wide rear view screen

-

-

Screen Transition Conditions

No.

Screen Transition Conditions

(1)

When outer rear view mirror assembly is retracted

COMMUNICATION SYSTEM OUTLINE

(a) CAN communication system

(1) The panoramic view monitor system uses CAN communication for data communications between the parking assist ECU and each ECU.

(2) If a problem occurs in the CAN communication line, the parking assist ECU outputs a CAN communication malfunction DTC. (To check, use the Techstream.)

Click here

(3) If a problem occurs in the CAN communication line, the parking assist ECU outputs a CAN communication malfunction DTC. (To check, use the multi-display assembly diagnosis screen.)

Click here

(4) If a CAN communication line malfunction DTC is output, repair the malfunction in the communication line and troubleshoot the panoramic view monitor system when data communication is normal.

(5) Since the CAN communication line has its own length and route, it cannot be repaired temporarily with a bypass wire, etc.

VIDEO SIGNALS

(a) Video signal circuit

(1) Video signals from the front television camera assembly are input into the parking assist ECU via analog communication lines (vehicle wire harness).

(2) Video signals from the side television camera assembly LH are input into the parking assist ECU via analog communication lines (vehicle wire harness).

(3) Video signals from the side television camera assembly RH are input into the parking assist ECU via analog communication lines (vehicle wire harness).

(4) Video signals from the rear television camera assembly are input into the parking assist ECU via analog communication lines (vehicle wire harness).

(5) Video signals from the parking assist ECU are input into the multi-display assembly via GVIF cable.

(b) Screen display

(1) Video signals input from each camera are processed in the parking assist ECU and displayed on the multi-display assembly as the panoramic view monitor system screen.

DIAGNOSTIC FUNCTION OUTLINE

(a) This panoramic view monitor system has a diagnostic function displayed in the multi-display assembly. This function enables the calibration (adjustment and verification) of the panoramic view monitor system.

Click here

(b) The panoramic view monitor system can check the following items by using the Techstream.

Item

Proceed to

DTC

Data List / Active Test

CALIBRATION

(a) Use the panoramic view monitor system diagnosis screen for calibration and checking of the panoramic view monitor system.

Click here

NOTICE:

Part replacement and work performed during servicing may require calibration of the panoramic view monitor system and other systems.

Click here

READ NEXT:

 System Diagram

SYSTEM DIAGRAM

 Terminals Of Ecu

TERMINALS OF ECU PARKING ASSIST ECU (a) Disconnect the N44 parking assist ECU connector. (b) Measure the voltage and resistance according to the value(s) in the table below. Terminal No. (Symbol)

 Lost Communication with Panoramic View Monitor Control Module (U023B)

DESCRIPTION These DTCs are stored if there is a malfunction in the CAN communication system connected to the rear television camera assembly. HINT: If CAN communication system DTCs are stored, they ma

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 Installation

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