Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001B3XQ
Model Year Start: 2019 Model: Avalon Prod Date Range: [04/2018 -           ]
Title: SLIDING ROOF / CONVERTIBLE: SLIDING ROOF SYSTEM (for Gasoline Model): Key-off Operation Function Operates even if Operating Conditions are not Satisfied; 2019 - 2022 MY Avalon [04/2018 -        ]

Key-off Operation Function Operates even if Operating Conditions are not Satisfied

DESCRIPTION

The sliding roof ECU (sliding roof drive gear assembly) operates its built-in motor according to the sliding roof switch (roof console box sub-assembly) operation. Using the sliding roof switch (roof console box sub-assembly), if the sliding roof can be operated normally when 45 seconds or more have elapsed since the engine switch was turned off, the key-off operation function may be abnormal.

CAUTION / NOTICE / HINT

NOTICE:

  • If the sliding roof ECU (sliding roof drive gear assembly) is removed and reinstalled or replaced, the sliding roof ECU (sliding roof drive gear assembly) must be initialized.

    Click here 2019 - 2022 MY Avalon [04/2018 -        ]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF SYSTEM (for Gasoline Model): INITIALIZATION

  • The sliding roof system uses the CAN and LIN communication systems. First, confirm that there are no malfunctions in the CAN and LIN communication systems. Refer to How to Proceed with Troubleshooting.

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

  • 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 POWER WINDOW CONTROL SYSTEM

(a) Check if the key-off operation function of the power window control system operates normally.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM (for Gasoline Model): OPERATION CHECK

OK:

The key-off operation function of the power window control system operates normally.

OK

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) 2019 - 2021 MY Avalon Avalon HV [04/2018 - 08/2021]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF HOUSING: REMOVAL 2022 MY Avalon Avalon HV [08/2021 -        ]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF HOUSING: REMOVAL

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