Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM1000000014UQI
Model Year Start: 2018 Model: Camry Prod Date Range: [06/2017 -           ]
Title: SLIDING ROOF / CONVERTIBLE: PANORAMIC MOON ROOF SYSTEM: B2343; Position Initialization Incomplete; 2018 - 2024 MY Camry [06/2017 -        ]

DTC

B2343

Position Initialization Incomplete

DESCRIPTION

This DTC is stored when the sliding roof ECU (sliding roof drive gear assembly) or roof sunshade ECU (sliding roof drive gear assembly) has not been initialized.

Sliding Roof

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B2343

Position Initialization Incomplete

Sliding roof ECU (sliding roof drive gear assembly) has not been initialized.

Sliding roof ECU (Sliding roof drive gear assembly)

Sliding Sunshade

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B2343

Position Initialization Incomplete

Roof sunshade ECU (sliding roof drive gear assembly) has not been initialized.

Roof sunshade ECU (Sliding roof drive gear assembly)

WIRING DIAGRAM

Refer to DTC B2341.

Click here 2018 - 2024 MY Camry [06/2017 -        ]; SLIDING ROOF / CONVERTIBLE: PANORAMIC MOON ROOF SYSTEM: B2341,B2344; Sensor (Motor) Failure+

CAUTION / NOTICE / HINT

NOTICE:

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

    Click here 2018 - 2024 MY Camry [06/2017 -        ]; SLIDING ROOF / CONVERTIBLE: PANORAMIC MOON ROOF SYSTEM: INITIALIZATION

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

    Click here 2018 - 2024 MY Camry [06/2017 -        ]; SLIDING ROOF / CONVERTIBLE: PANORAMIC MOON ROOF SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

  • DTC B2343 is stored in the sliding roof ECU (sliding roof drive gear assembly) and roof sunshade ECU (sliding roof drive gear assembly).

HINT:

If DTC B2342 and B2343 are output simultaneously, perform troubleshooting for DTC B2342 first.

PROCEDURE

1.

CHECK FOR DTC

(a) Clear the DTCs.

Click here 2018 - 2024 MY Camry [06/2017 -        ]; SLIDING ROOF / CONVERTIBLE: PANORAMIC MOON ROOF SYSTEM: DTC CHECK / CLEAR

Body Electrical > Sliding Roof > Clear DTCs

Body Electrical > Sliding Sunshade > Clear DTCs

(b) Check for DTCs.

Click here 2018 - 2024 MY Camry [06/2017 -        ]; SLIDING ROOF / CONVERTIBLE: PANORAMIC MOON ROOF SYSTEM: DTC CHECK / CLEAR

Body Electrical > Sliding Roof > Trouble Codes

Body Electrical > Sliding Sunshade > Trouble Codes

OK:

DTC B2343 is not output.

OK

USE SIMULATION METHOD TO CHECK 2018 MY Camry [06/2017 - 08/2018]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2019 MY Camry [08/2018 - 09/2019]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2020 MY Camry [09/2019 - 03/2020]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2020 MY Camry [03/2020 - 10/2020]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2021 MY Camry [10/2020 - 08/2021]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2022 - 2024 MY Camry [08/2021 -        ]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING

NG

2.

CHECK DTC OUTPUT

(a) Check the parts from which this DTC has been output.

Result

Proceed to

DTC output from sliding roof ECU (sliding roof drive gear assembly)

A

DTC output from roof sunshade ECU (sliding roof drive gear assembly)

B

B

GO TO STEP 6

A

3.

INITIALIZE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

(a) Check that the sliding roof ECU (sliding roof drive gear assembly) can be initialized.

Click here 2018 - 2024 MY Camry [06/2017 -        ]; SLIDING ROOF / CONVERTIBLE: PANORAMIC MOON ROOF SYSTEM: INITIALIZATION

OK:

Sliding roof ECU (sliding roof drive gear assembly) can be initialized.

NG

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) 2018 - 2020 MY Camry [06/2017 - 10/2020]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF HOUSING (for Panoramic Moon Roof): REMOVAL 2021 - 2024 MY Camry [10/2020 -        ]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF HOUSING (for Panoramic Moon Roof): REMOVAL

OK

4.

CHECK SLIDING ROOF OPERATION

(a) Check the sliding roof auto operation function.

Click here 2018 - 2024 MY Camry [06/2017 -        ]; SLIDING ROOF / CONVERTIBLE: PANORAMIC MOON ROOF SYSTEM: OPERATION CHECK

OK:

Auto operation function operates normally.

NG

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) 2018 - 2020 MY Camry [06/2017 - 10/2020]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF HOUSING (for Panoramic Moon Roof): REMOVAL 2021 - 2024 MY Camry [10/2020 -        ]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF HOUSING (for Panoramic Moon Roof): REMOVAL

OK

5.

CHECK DTC OUTPUT

(a) Clear the DTCs.

Click here 2018 - 2024 MY Camry [06/2017 -        ]; SLIDING ROOF / CONVERTIBLE: PANORAMIC MOON ROOF SYSTEM: DTC CHECK / CLEAR

Body Electrical > Sliding Roof > Clear DTCs

(b) Check for DTCs.

Body Electrical > Sliding Roof > Trouble Codes

OK:

DTC B2343 is not output.

OK

END (MALFUNCTION DUE TO INITIALIZATION FAILURE)

NG

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) 2018 - 2020 MY Camry [06/2017 - 10/2020]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF HOUSING (for Panoramic Moon Roof): REMOVAL 2021 - 2024 MY Camry [10/2020 -        ]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF HOUSING (for Panoramic Moon Roof): REMOVAL

6.

INITIALIZE ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

(a) Check that the roof sunshade ECU (sliding roof drive gear assembly) can be initialized.

Click here 2018 - 2024 MY Camry [06/2017 -        ]; SLIDING ROOF / CONVERTIBLE: PANORAMIC MOON ROOF SYSTEM: INITIALIZATION

OK:

Roof sunshade ECU (sliding roof drive gear assembly) can be initialized.

NG

REPLACE ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) 2018 - 2020 MY Camry [06/2017 - 10/2020]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF HOUSING (for Panoramic Moon Roof): REMOVAL 2021 - 2024 MY Camry [10/2020 -        ]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF HOUSING (for Panoramic Moon Roof): REMOVAL

OK

7.

CHECK ROOF SUNSHADE OPERATION

(a) Check the roof sunshade auto operation function.

Click here 2018 - 2024 MY Camry [06/2017 -        ]; SLIDING ROOF / CONVERTIBLE: PANORAMIC MOON ROOF SYSTEM: OPERATION CHECK

OK:

Auto operation function operates normally.

NG

REPLACE ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) 2018 - 2020 MY Camry [06/2017 - 10/2020]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF HOUSING (for Panoramic Moon Roof): REMOVAL 2021 - 2024 MY Camry [10/2020 -        ]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF HOUSING (for Panoramic Moon Roof): REMOVAL

OK

8.

CHECK DTC OUTPUT

(a) Clear the DTCs.

Click here 2018 - 2024 MY Camry [06/2017 -        ]; SLIDING ROOF / CONVERTIBLE: PANORAMIC MOON ROOF SYSTEM: DTC CHECK / CLEAR

Body Electrical > Sliding Sunshade > Clear DTCs

(b) Check for DTCs.

Body Electrical > Sliding Sunshade > Trouble Codes

OK:

DTC B2343 is not output.

OK

END (MALFUNCTION DUE TO INITIALIZATION FAILURE)

NG

REPLACE ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) 2018 - 2020 MY Camry [06/2017 - 10/2020]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF HOUSING (for Panoramic Moon Roof): REMOVAL 2021 - 2024 MY Camry [10/2020 -        ]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF HOUSING (for Panoramic Moon Roof): REMOVAL