Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001ATQH
Model Year Start: 2019 Model: Avalon Prod Date Range: [04/2018 -           ]
Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Gasoline Model): B15F6; Main Body ECU Vehicle Information Reading/Writing Process Malfunction; 2019 - 2022 MY Avalon [04/2018 -        ]

DTC

B15F6

Main Body ECU Vehicle Information Reading/Writing Process Malfunction

DESCRIPTION

This DTC is stored when items controlled by the main body ECU (multiplex network body ECU) cannot be customized via the audio and visual system vehicle customization screen.

HINT:

The main body ECU (multiplex network body ECU) controls the items for the following systems that are customizable via the audio and visual system vehicle customization screen:

  • Power door lock control system
  • Wireless door lock control system
  • Lighting system (for Interior)
  • Lighting system (for Exterior)

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B15F6

Main Body ECU Vehicle Information Reading/Writing Process Malfunction

Main body ECU (multiplex network body ECU) vehicle setting processing malfunction
  • CAN communication system
  • Power door lock control system
  • Wireless door lock control system
  • Lighting system (for Interior)
  • Lighting system (for Exterior)
  • Main body ECU (multiplex network body ECU)
  • Radio and display receiver assembly

CAUTION / NOTICE / HINT

NOTICE:

  • Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Audio and Visual System.

    Click here 2019 - 2021 MY Avalon [04/2018 - 08/2021]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Gasoline Model): PRECAUTION 2022 MY Avalon [08/2021 -        ]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Gasoline Model): PRECAUTION

  • When replacing the radio and display receiver assembly, always replace it with a new one. If a radio and display receiver assembly which was installed to another vehicle is used, the following may occur:
    • A communication malfunction DTC may be stored.
    • The radio and display receiver assembly may not operate normally.
  • Before replacing the main body ECU (multiplex network body ECU), refer to Registration.

    Click here 2019 - 2020 MY Avalon [04/2018 - 08/2020]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION 2021 - 2022 MY Avalon [08/2020 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION

PROCEDURE

1.

CHECK CAN COMMUNICATION SYSTEM

(a) Use the Techstream to check if the CAN communication system is functioning normally.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

OK:

CAN communication DTCs are not output.

NG

GO TO CAN COMMUNICATION SYSTEM

OK

2.

CHECK POWER DOOR LOCK CONTROL SYSTEM

(a) Check if the power door lock control system is malfunctioning.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

HINT:

Customization may not be possible depending on the malfunction in the power door lock control system.

OK:

No malfunctions are present in the power door lock control system.

NG

GO TO POWER DOOR LOCK CONTROL SYSTEM

OK

3.

CHECK WIRELESS DOOR LOCK CONTROL SYSTEM

(a) Check if the wireless door lock control system is malfunctioning.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

HINT:

Customization may not be possible depending on the malfunction in the wireless door lock control system.

OK:

No malfunctions are present in the wireless door lock control system.

NG

GO TO WIRELESS DOOR LOCK CONTROL SYSTEM

OK

4.

CHECK LIGHTING SYSTEM (for Interior)

(a) Check if the lighting system (for Interior) is malfunctioning.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; LIGHTING (INT): LIGHTING SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

HINT:

Customization may not be possible depending on the malfunction in the lighting system (for Interior).

OK:

No malfunctions are present in the lighting system (for Interior).

NG

GO TO LIGHTING SYSTEM (for Interior)

OK

5.

CHECK LIGHTING SYSTEM (for Exterior)

(a) Check if the lighting system (for Exterior) is malfunctioning.

Click here 2019 - 2021 MY Avalon [04/2018 - 08/2021]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without Cornering Light): HOW TO PROCEED WITH TROUBLESHOOTING 2022 MY Avalon [08/2021 -        ]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without Cornering Light): HOW TO PROCEED WITH TROUBLESHOOTING

HINT:

Customization may not be possible depending on the malfunction in the lighting system (for Exterior).

OK:

No malfunctions are present in the lighting system (for Exterior).

NG

GO TO LIGHTING SYSTEM (for Exterior) 2019 - 2021 MY Avalon [04/2018 - 08/2021]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without Cornering Light): HOW TO PROCEED WITH TROUBLESHOOTING 2022 MY Avalon [08/2021 -        ]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without Cornering Light): HOW TO PROCEED WITH TROUBLESHOOTING

OK

6.

CHECK CUSTOMIZE ITEMS

(a) Make a note of the customizable items for each main body ECU (multiplex network body ECU) related system.

HINT:

The items shown as customizable via the audio and visual system vehicle customization screen can also be changed using the Techstream. In the following steps, the Techstream will be used.

(1) To match-up the items on the audio and visual system vehicle customization screen with the items on the Techstream, check the customize parameters list for the power door lock control system related items that can be customized via the audio and visual system vehicle customization screen.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM (for Gasoline Model): CUSTOMIZE PARAMETERS

(2) To match-up the items on the audio and visual system vehicle customization screen with the items on the Techstream, check the customize parameters list for the wireless door lock control system related items that can be customized via the audio and visual system vehicle customization screen.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM (for Gasoline Model): CUSTOMIZE PARAMETERS

(3) To match-up the items on the audio and visual system vehicle customization screen with the items on the Techstream, check the customize parameters list for the lighting system (for Interior) related items that can be customized via the audio and visual system vehicle customization screen.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; LIGHTING (INT): LIGHTING SYSTEM (for Gasoline Model): CUSTOMIZE PARAMETERS

(4) To match-up the items on the audio and visual system vehicle customization screen with the items on the Techstream, check the customize parameters list for the lighting system (for Exterior) related items that can be customized via the audio and visual system vehicle customization screen.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model without Cornering Light): CUSTOMIZE PARAMETERS

(b) Using the Techstream, check that it is possible to change the settings of the customize parameters that are available for customization via the audio and visual system vehicle customization screen.

OK:

The items available for customization via the audio and visual system vehicle customization screen can be customized successfully using the Techstream.

OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

NG

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 2019 - 2021 MY Avalon Avalon HV [04/2018 - 08/2021]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL 2022 MY Avalon Avalon HV [08/2021 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL