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SLIDING ROOF SYSTEM, Diagnostic DTC:B2341, B2344

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DTC Code DTC Name
B2341 Sensor (Motor) Failure
B2344 Position Failure
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DESCRIPTION

When the sliding roof drive gear sub-assembly (sliding roof ECU) detects a motor malfunction and the sliding roof operation is stopped, DTC B2341 is stored.

When the sliding roof drive gear sub-assembly (sliding roof ECU) detects a gear position malfunction and the sliding roof operation is stopped, DTC B2344 is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
B2341 Sensor (Motor) Failure Sensor (motor) failure (When the sliding roof drive gear sub-assembly (sliding roof ECU) enters fail-safe mode due to a problem with the motor)

  • Sliding roof drive gear sub-assembly (sliding roof ECU)

  • Map light sub-assembly (slide roof switch)

  • Harness or connector
B2344 Position Failure Position failure (When the sliding roof drive gear sub-assembly (sliding roof ECU) enters fail-safe mode due to a problem with the gear position)

  • Sliding roof drive gear sub-assembly (sliding roof ECU)

  • Map light sub-assembly (slide roof switch)

  • Harness or connector
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WIRING DIAGRAM

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CAUTION / NOTICE / HINT

Note:

  • If the sliding roof drive gear sub-assembly (sliding roof ECU) is replaced, the sliding roof drive gear sub-assembly (sliding roof ECU) must be initialized.

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  • The sliding 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.

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PROCEDURE


  1. Click here

    CHECK SLIDING ROOF OPERATION


    1. Check the sliding roof auto operation.

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      OK
      Auto operation operates normally.
      Result
      Proceed to
      OK
      NG

  2. Click here

    CHECK DTC OUTPUT


    1. Clear the DTCs.

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      1. Body Electrical > Sliding Roof > Clear DTCs


    2. Check for DTCs.

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      1. Body Electrical > Sliding Roof > Trouble Codes


      OK
      DTCs B2341 and B2344 are not output.
      Result
      Proceed to
      OK
      NG

    • OK

      USE SIMULATION METHOD TO CHECKClick here

    • NG

      REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLYClick here

  3. Click here

    INITIALIZE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY


    1. Check that the sliding roof drive gear sub-assembly (sliding roof ECU) can be initialized.

      Click here

      OK
      Sliding roof drive gear sub-assembly (sliding roof ECU) can be initialized.
      Result
      Proceed to
      OK
      NG

  4. Click here

    CHECK DTC OUTPUT


    1. Clear the DTCs.

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      1. Body Electrical > Sliding Roof > Clear DTCs


    2. Check for DTCs.

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      1. Body Electrical > Sliding Roof > Trouble Codes


      OK
      DTCs B2341 and B2344 are not output.
      Result
      Proceed to
      OK
      NG

    • OK

      END (MALFUNCTION DUE TO INITIALIZATION FAILURE)

    • NG

      REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLYClick here

  5. Click here

    PERFORM ACTIVE TEST USING GTS (Slide Roof)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Sliding Roof / Active Test.

    5. Perform the Active Test according to the display on the GTS.


      1. Body Electrical > Sliding Roof > Active Test
        Tester Display Measurement Item Control Range Diagnostic Note
        Slide Roof Operate sliding roof motor OFF / Opn/Dwn / Clos/Up -



      1. Body Electrical > Sliding Roof > Active Test
        Tester Display
        Slide Roof




      OK
      Slide roof is operated using GTS.
      Result
      Proceed to
      OK
      NG

  6. Click here

    READ VALUE USING GTS (Open Switch, Close Switch, Up Switch, Down Switch)


    1. Read the Data List according to the display on the GTS.

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      1. Body Electrical > Sliding Roof > Data List
        Tester Display Measurement Item Range Normal Condition Diagnostic Note
        Open Switch OPEN switch signal OFF or ON

        OFF: OPEN switch not pressed

        ON: OPEN switch pressed

        		 -
        Close Switch CLOSE switch signal OFF or ON

        OFF: CLOSE switch not pressed

        ON: CLOSE switch pressed

        		 -
        Up Switch UP switch signal OFF or ON

        OFF: UP switch not pressed

        ON: UP switch pressed

        		 -
        Down Switch DOWN switch signal OFF or ON

        OFF: DOWN switch not pressed

        ON: DOWN switch pressed

        		 -






      1. Body Electrical > Sliding Roof > Data List
        Tester Display
        Open Switch
        Close Switch
        Up Switch
        Down Switch







      OK
      The GTS display changes according to switch operation as shown in the table.
      Result
      Proceed to
      OK
      NG

  7. Click here

    INSPECT MAP LIGHT SUB-ASSEMBLY


    1. Remove the map light sub-assembly (slide roof switch).

      Click here

    2. Inspect the map light sub-assembly (slide roof switch).

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      Result
      Proceed to
      OK
      NG

  8. Click here

    CHECK HARNESS AND CONNECTOR (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY - MAP LIGHT SUB-ASSEMBLY AND BODY GROUND)


    1. Disconnect the N4 sliding roof drive gear sub-assembly connector.

    2. Disconnect the N7 and N9 map light sub-assembly connectors.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      N4-10 (OPN) - N9-12 (OPN) Always Below 1 Ω
      N4-8 (CLS) - N9-14 (CLS) Always Below 1 Ω
      N4-9 (DWN) - N9-16 (DOWN) Always Below 1 Ω
      N4-5 (UP) - N9-15 (UP) Always Below 1 Ω
      N4-2 (E) - Body ground Always Below 1 Ω
      N7-22 (GND) - Body ground Always Below 1 Ω
      N4-10 (OPN) or N9-12 (OPN) - Body ground Always 10 kΩ or higher
      N4-8 (CLS) or N9-14 (CLS) - Body ground Always 10 kΩ or higher
      N4-9 (DWN) or N9-16 (DOWN) - Body ground Always 10 kΩ or higher
      N4-5 (UP) or N9-15 (UP) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLYClick here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR