Operation Check [09/2022 - ]

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus ES 350, 2024 Lexus ES 300h, 2024 Lexus ES 250, 2023 Lexus ES 350, and 2023 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

CHECK SPEAKER

HINT:

For information on how to start diagnosis and transition to each screen, refer to Refer to DIAGNOSIS SYSTEM [09/2022 - ]
This function can check the wire harness between the stereo component amplifier assembly and each speaker for malfunctions.

Turn radio receiver assembly on and play any audio source.
HINT:
- This audio source will be used for the speaker check.
- The "SPCheck ON" button is grayed out and cannot be pressed when the audio source is off.
Enter diagnostic mode.
1. Start diagnosis and display the "Service Menu" screen.
2. Select "Failure Diagnosis" on the "Service Menu" screen to display the failure diagnosis screen.
3. Select "System Check" of the failure diagnosis screen to display the system check mode screen.

Speaker check

Select "SPCheck ON" from the "System Check Mode" screen.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Sound can be heard from the speakers around the vehicle in order beginning from the speaker on the front side.
HINT:
- "SPCheck OFF" is displayed during the speaker check.
- Sound can be heard from the speakers around the vehicle in order beginning from the speaker on the front side.
- The sounding order during speaker check cannot be adjusted.
- More than one speaker may sound simultaneously depending on the speaker wiring.
- If sound is not output from a speaker, check the wire harness between the stereo component amplifier assembly and each speaker for a malfunction.
Sound stops when any of the following conditions are met:
- "SPCheck OFF" is selected.
- Audio mode is turned off.
- The screen is changed to another screen.
- Diagnostic mode is turned off.
- The ignition switch is turned off.

CHECK PANEL & STEERING SWITCH

HINT:

For enter diagnostic mode and screen transition, refer to Refer to DIAGNOSIS SYSTEM [09/2022 - ]

Enter diagnostic mode.
1. Enter diagnostic mode.
2. Select "Failure Diagnosis" from the "Service Menu" screen.
3. Select "Panel&Steering Switch" on the "Function Check/Setting I" screen to display the "Panel&Steering Switch Check Mode" screen.

Panel & Steering Switch Check Mode

Operate each switch and check that the switch conditions are correctly displayed.

SCREEN DESCRIPTION

Display	Content
*a: Switch condition	"Pushed" is displayed when any switch is pushed.
*b: Number of switches pushed	Number of switches pushed at once is displayed. If 3 switches are pushed at once, "3" is displayed. If 4 or more switches are pushed at once, "More than 3" is displayed.
*c: Rotary switch direction	Direction of rotary switch is displayed.
*d: Communication method	The steering pad switch assembly method of communication is displayed.

Fig 1: Panel & Steering Switch Check Mode

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

Do not push any switch for 3 seconds or more as doing so may cancel diagnostic mode.
If the result of a switch check for the radio receiver assembly is abnormal, it can be suspected that the radio receiver assembly is malfunctioning.
If the result of a switch check for the steering pad switch assembly is abnormal, it is necessary to perform an inspection of the steering pad switch assembly and spiral cable sub-assembly.
Steering Pad Switch Assembly: Refer to INSPECTION [06/2018 - ]

Spiral Cable Sub-assembly: Refer to INSPECTION [06/2018 - ]

CHECK TOUCH SWITCH
HINT:

For enter diagnostic mode and screen transition, refer to Refer to DIAGNOSIS SYSTEM [09/2022 - ]
1. Enter diagnostic mode.
  1. Enter diagnostic mode.
  2. Select "Function Check/Setting" from the "Service Menu" screen.
  3. Select "Touch Switch Check" on the "Function Check/Setting I" screen to display the "Touch Switch Check" screen.
2. Touch Switch Check
  
  Fig 2: Touch Switch Check
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  *a "+" mark
  1. Touch the display anywhere in the open area to perform the check when the "Touch Switch Check" screen is displayed.
    Standard
    
    A "+" mark is displayed where the display is touched.
    
    HINT:
    - The "+" mark remains on the display even after your finger is removed.
    - If the result of the touch switch check is abnormal, it can be suspected that the radio receiver assembly is malfunctioning.

CHECK MICROPHONE

HINT:

For enter diagnostic mode and screen transition, refer to Refer to DIAGNOSIS SYSTEM [09/2022 - ]

Enter diagnostic mode.
1. Enter diagnostic mode.
2. Select "Function Check/Setting" from the "Service Menu" screen.
3. Select "Microphone Check" on the "Function Check/Setting I" screen to display the microphone check screen.

Microphone Check

Fig 3: Microphone Check

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

SCREEN DESCRIPTION

Display	Content
*a: Microphone 1 input level meter	Displays the input level in 8 steps for microphone 1
*b: Microphone 2 input level meter	Displays the input level in 8 steps for microphone 2

Speak to the microphone and check that the microphone input level meter changes according to the input level.
HINT:

The microphone input level is updated every 0.1 seconds.

Standard

The microphone input level changes

CHECK SYSTEM SENSORS (w/ Cloud Navigation Function)

HINT:

For enter diagnostic mode and screen transition, refer to Refer to DIAGNOSIS SYSTEM [09/2022 - ]

Enter diagnostic mode.
1. Enter diagnostic mode.
2. Select "Function Check/Setting" from the "Service Menu" screen.
3. Select "System Sensors Check" on the "Function Check/Setting I" screen to display the "System Sensors Check" screen.

System Sensors Check

Fig 4: System Sensors Check

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*A: GNSS

Display	Content
Reception number	Displays reception condition of the satellites used to determine vehicle position	Blue: P (In use)	System is using GNSS signal for location.
		Yellow: T (Receiving)	System is tracking GNSS signal for location.
		No color: Not in use	When "Data collected, unused measurement" notification is received via the GNSS receiver When "searching" notification is received from the GNSS receiver
Status	Displays reception status of the satellites used to determine vehicle position	OK (3D)	3-dimensional location method is being used.
		OK (2D)	2-dimensional location method is being used.
		NG	Location data cannot be used.
		error	Reception error has occurred.
		-	Any other state.
Measurement ratio	Displays the ratio of satellites performing measurements	3D	The ratio of satellites performing 3D positioning is displayed.
		2D	The ratio of satellites performing 2D positioning is displayed.
		NG	The ratio of satellites not performing measurement is displayed.
Date	Date/time information obtained from GNSS signals is displayed in Greenwich Mean Time (GMT).
Position	Latitude and longitude information on current position is displayed.

*B: SPD

Display	Content	Signal Input Terminal
Pulse Count	Displays the accumulated number of input pulses beginning when this screen is displayed	Terminal SPD of the radio receiver assembly
Speed	Displays vehicle speed	Terminal SPD of the radio receiver assembly

*C: SENSOR SIGNAL

Display	Content	Note
Gyro Voltage	Displays the output voltage of the gyro sensor	-
0 point Voltage	Displays the zero-point voltage of the gyro sensor	-
Relative bearing	Displays the output angle of the gyro sensor	The amount of change in bearing angle (degrees) after the system sensor check screen is displayed (clockwise: "+", counterclockwise: "-").

*D: RESET

Display	Content
Reset	When this switch is pressed and held for 3 seconds or more, the values for the display items of SPD signal and gyro sensor signal are reset and display "0".

*E: GYRO/DISTANCE CORRECTION STUDY SITUATION

Display	Content
Gyro/Distance correction study situation	Displays learning status of Gyro/Distance correction

HINT:

This screen is updated once per second.
When the vehicle speed calculated from the GNSS signal differs from the SPD signal, DTC B2282-31 is stored.
Refer to DTC B2282-31: Vehicle Speed Signal Circuit Open [09/2022 - ]
When the output voltage of the gyro sensor is abnormal, DTC B15AD-96 is stored.
Refer to DTC B1551-96: HD-RADIO Tuner Component Internal Failure; DTC B158D-87: Video Signal Stoppage Missing Message; DTC B15A0-96: LAN Master Component Internal Failure; DTC B15AD-96: Navigation Processor Component Internal Failure; DTC B15B3-96: Radio Tuner Component Internal Failure; DTC B15B7-96: Bluetooth Module Component Internal Failure; DTC B15BA-96: XM Tuner Component Internal Failure [09/2022 - ]

GNSS TIME SETTING
HINT:

For enter diagnostic mode and screen transition, refer to Refer to DIAGNOSIS SYSTEM [09/2022 - ]
1. Enter diagnostic mode.
  1. Enter diagnostic mode.
  2. Select "Function Check/Setting" from the "Service Menu" screen.
  3. Select "System Sensors Check" from the "Function Check/Setting I" screen.
  4. Select "Time Setting" on the "System Sensors Check" screen to display the GNSS Time Setting screen.
2. GNSS Time Setting
  
  Fig 5: GNSS Time Setting
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  When GNSS radio waves can be received, GNSS time is prioritized.

CHECK VEHICLE SIGNAL

HINT:

For enter diagnostic mode and screen transition, refer to Refer to DIAGNOSIS SYSTEM [09/2022 - ]

Enter diagnostic mode.
1. Enter diagnostic mode.
2. Select "Function Check/Setting" from the "Service Menu" screen.
3. Select "Vehicle Signal" on the "Function Check/Setting I" screen to display the Vehicle Signal Check Mode screen.

Vehicle Signal Check Mode

Check the vehicle signal status stored in the radio receiver assembly.

Fig 6: Vehicle Signal Check Mode

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

SCREEN DESCRIPTION

Display	Content	Signal Input Terminal
Battery	Auxiliary battery voltage is displayed.	Terminal +B1 of the radio receiver assembly
IG	Ignition switch ON/OFF state is displayed.	Terminal IG of the radio receiver assembly
PKB	Parking brake ON/OFF state is displayed.	Input via CAN communication
REV	Reverse signal ON/OFF state is displayed.	Input via CAN communication
SPEED	Vehicle speed is displayed in km/h.	Terminal SPD of the radio receiver assembly
TAIL	Tail signal (light control switch) ON/OFF state is displayed.	Terminal ILL+ of the radio receiver assembly
ADIM/TCAN	Brightness state DIM (with) / BRIGHT (without) is displayed.	Input via CAN communication
USB	Displays the USB current (mA)	Terminal USV1 of the radio receiver assembly

HINT:

This screen is updated once per second.
If vehicle signals other than REV, PKB and ADIM/TCAN are abnormal, inspect each terminal and wire harness.
If vehicle signal REV, PKB or ADIM/TCAN is abnormal, it can be judged that the CAN communication system is malfunctioning.
for Gasoline Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ]

for HEV Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ]

CHECK HANDS-FREE VOICE QUALITY AND VOLUME SETTING

HINT:

For enter diagnostic mode and screen transition, refer to Refer to DIAGNOSIS SYSTEM [09/2022 - ]

Enter diagnostic mode.
1. Enter diagnostic mode.
2. Select "Function Check/Setting" from the "Service Menu" screen.
3. Select "HF Voice Quality Setting" on the "Function Check/Setting I" screen to display the "Hands-Free Voice Quality Setting" screen.

Hands-Free Voice Quality Setting

Hands-Free Voice Quality Setting Screen Display Contents:

Fig 7: Hands-Free Voice Quality Setting

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Item	Display contents	Operation Procedure
Voice Quality Type	Adjusts the audio on the vehicle side as heard by the other party	After setting the voice quality type using the numeric keypad, press the "Set" switch.

NOTE:

The input voice quality type number is valid if it is listed in the settings parameter tables. As there may be adverse effects after setting the voice quality type, make sure to confirm that there is no problem in the voice quality after changing the setting.

If necessary, refer to the table below to adjust the voice quality type with the numeric keypad.

SETTINGS

Parameter	Target Phenomenon	Voice Quality Type	Positive Effect of Changing Voice Quality	Negative Effect of Changing Voice Quality
B (Noise)	The other party hears background noise when listening to your voice.	2000	The amount of background noise the other party hearswhen listening to your voice is reduced.	Sound quality of the otherparty deteriorates.
D (Echo)	The other party hears strong echoes.	0200	The amount of echo is reduced.	The volume of voice the other party hears when listening to your voice may temporarily drop.
F (Sound Quality)	Sound quality of driver's voice, which the other party hears, is poor.	0020	Sound quality of driver's voice is improved.	The amount of background noise covering over the driver's voice is increased.

SETTINGS (WHEN MULTIPLE PHENOMENON OCCURRED)

Parameter	Target Phenomenon	Voice Quality Type	Positive Effect of Changing Voice Quality	Negative Effect of Changing Voice Quality
B+D	The other party hears a lot of background noise and strong echoes when listening to your voice.	2200	The amount of background noise theother party hears when listening to your voice is reduced. The amount of echo isreduced.	Sound quality of the other party deteriorates. The volume of voice the other party hears when listening to your voice may temporarily drop.
D+F	The other party hears strong echoes and sound quality of driver's voice is poor.	0220	The amount of echo is reduced. Sound quality of driver'svoice is improved.	The volume of voice the other party hears when listening to your voice may temporarily drop. The amount of background noise covering over the driver's voice is increased.

HINT:

The default value is "0000".
Settings will be applied when the setting button is selected.
If voice quality type values that are not in the table are input, the setting will not be applied and a positive effect may not be gained.
If the quality of phone calls decreases due to the changed settings, return the settings to "0000" by selecting "INIT".

UPDATE VUI INFORMATION (w/ VUI Information Function)

HINT:

For enter diagnostic mode and screen transition, refer to Refer to DIAGNOSIS SYSTEM [09/2022 - ]

Enter diagnostic mode.
1. Enter diagnostic mode.
2. Select "Service Information" from the "Service Menu" screen.
3. Select "VUI information" on the "Service Information" screen to display the "VUI information" screen.

VUI Information

VUI INFORMATION SCREEN DISPLAY CONTENTS

Display	Content	Remarks
*a: ECU	Displays the ECU ID name	Displays the respective ECU ID Displays a maximum of 7 items
*b: Table ID	Displays the vehicle-specific number for the voice recognition commands.	Displays the VUI table ID Displays a maximum of 7 items
*c: Table sub ID	Displays the latest version of voice recognition command IDs	Displays the VUI table sub ID Displays a maximum of 7 items
*d: Update	Update the VUI information	-

Fig 8: VUI Information

HINT:

ECU ID DISPLAY CONTENT

ECU ID	ECU name
306	Main Body ECU (Multiplex Network Body ECU)
364	Combination Meter Assembly
28a	Forward recognition camera

*: Perform the following procedure only for the above ECUs that are installed to the vehicle

If the table ID is "000", confirm that the CAN communication system is operating correctly and perform an inspection of the respective ECUs.
for Gasoline Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ]

for HEV Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ]
If the table sub ID is "000", select "Update" on the VUI information screen and update VUI information.

CHECK "Bluetooth" COMMUNICATION TRACE OUTPUT

HINT:

For enter diagnostic mode and screen transition, refer to Refer to DIAGNOSIS SYSTEM [09/2022 - ]

Connect the USB memory device to the No. 1 stereo jack adapter assembly.

Enter diagnostic mode.

Start diagnosis and display the "Service Menu" screen.

Fig 9: Diagnosis Recorder

*a	Green Indicator

Select "Failure Diagnosis" on the "Service Menu" screen to display the "Failure Diagnosis" screen.
Select "Diagnosis Recorder" on the "Failure Diagnosis" screen to display the "Diagnosis Recorder" screen.
Select "Recording ON/OFF" on the "Diagnosis Recorder" screen to turn off the indicator (green).
Press and hold (for 3 seconds) "BT cmc Trace output" on the "Diagnosis Recorder" screen.
HINT:

When the indicator (green) of "Recording ON/OFF" is illuminated, "BT cmc Trace output" is grayed out and cannot be selected.

BT cmc Trace Output
1. In accordance with the display, save the "Bluetooth" Connection History recorded data.
2. Select "Recording ON/OFF" on the "Diagnosis Recorder" screen to turn on the indicator (green).
  HINT:
  - When performing the above procedure, make sure to set the indicator (green) of "Recording ON/OFF" back to the illuminated state.
  - The Bluetooth Connection History is stored in the ECU internal memory, and consists of timestamped operation data. By checking "Bluetooth" Connection History, the date, cause, etc. of a "Bluetooth" device failing to register or connect can be analyzed.
    Refer to UTILITY [09/2022 - ]

CHECK "Wi-Fi" COMMUNICATION TRACE OUTPUT

HINT:

For enter diagnostic mode and screen transition, refer to Refer to DIAGNOSIS SYSTEM [09/2022 - ]

Connect the USB memory device to the No. 1 stereo jack adapter assembly.

Enter diagnostic mode.

Fig 10: Diagnosis Recorder

*a	Green Indicator

Select "Failure Diagnosis" from the "Service Menu" screen.
Select "Diagnosis Recorder" from the "Failure Diagnosis" screen.
Select "Recording ON/OFF" on the "Diagnosis Recorder" screen and turn off the "Recording ON/OFF" green indicator.
Select "Wi-Fi cmc Trace output" for 3 seconds.
HINT:

When the green "Recording ON/OFF" indicator is illuminated, the "Wi-Fi" cmc Trace output" is grayed out and cannot be selected.

"Wi-Fi" cmc Trace Output
1. According to the instructions on the screen, save the "Wi-Fi" Connection History data to a USB memory device.
2. Select "Recording ON/OFF" on the Diagnosis Recorder screen to illuminate the green "Recording ON/OFF" indicator.
  HINT:
  - Make sure that the green "Recording ON/OFF" indicator returns to illuminated state, after performing the above procedure.
  - This function is used to check the connection history when the connection between the radio receiver assembly and a "Wi-Fi" device is unstable.
    Refer to UTILITY [09/2022 - ]

CHECK VOICE GUIDANCE SETTING (VOICE GUIDANCE NOT SOUNDING)
1. Check settings
  1. Set the volume to maximum in the volume setting in the settings screen and inspect the vocalization.
    Standard
    
    Voice guidance can be heard.
    
    HINT:
    
    In the following situations, voice guidance is not performed even if the system is operating normally.
    - When a destination has not been set.
    - When the vehicle is not being driven on the specified route
    - When voice guidance is muted.
CHECK GYRO INTIALIZATION (Vehicle position mark is rotating)
1. Perform operation again
  1. Turn the ignition switch from off to on (IG), and check if the system returns to normal.
    Standard
    
    The system returns to normal.
    
    HINT:
    - If the ignition switch is turned to ACC or ON (IG) while the vehicle is being rotated (on a turntable, etc.), the system will display the vehicle position mark as rotating even when there is no malfunction as the radio receiver assembly will store the angular velocity as the reference value.
    - In the above situation, turn the ignition switch from off to ACC with the vehicle stopped to return the vehicle to normal.