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

When the sliding roof ECU (sliding roof drive gear sub-assembly) 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 (The sliding roof ECU (sliding roof drive gear sub-assembly) enters fail-safe mode due to a problem with the motor)

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

  • Sliding roof switch (Roof console box sub-assembly)

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

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

  • Sliding roof switch (Roof console box sub-assembly)

  • Wire harness or connector
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WIRING DIAGRAM

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CAUTION / NOTICE / HINT

Note:

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

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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.


      1. Body Electrical > Sliding Roof > Clear DTCs


    2. Check for DTCs.


      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 ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)Click here

  3. Click here

    INITIALIZE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)


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

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

  4. Click here

    CHECK DTC OUTPUT


    1. Clear the DTCs.


      1. Body Electrical > Sliding Roof > Clear DTCs


    2. Check for DTCs.


      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 ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)Click here

  5. Click here

    CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) - SLIDING ROOF SWITCH (ROOF CONSOLE BOX SUB-ASSEMBLY) AND BODY GROUND)


    1. Disconnect the V14 sliding roof switch (roof console box sub-assembly) connector.

    2. Disconnect the V19 sliding roof ECU (sliding roof drive gear sub-assembly) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      V19-8 (CLS) - V14-4 (CLS) Always Below 1 Ω
      V19-8 (CLS) or V14-4 (CLS) - Body ground Always 10 kΩ or higher
      V19-10 (OPN) - V14-5 (OPN) Always Below 1 Ω
      V19-10 (OPN) or V14-5 (OPN) - Body ground Always 10 kΩ or higher
      V19-9 (CLS) - V14-18 (DOWN) Always Below 1 Ω
      V19-9 (CLS) or V14-18 (DOWN) - Body ground Always 10 kΩ or higher
      V19-5 (OPN) - V14-3 (UP) Always Below 1 Ω
      V19-5 (OPN) or V14-3 (UP) - Body ground Always 10 kΩ or higher
      V14-15 (GND) - Body ground Always Below 1 Ω
      V19-2 (E) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  6. Click here

    INSPECT SLIDING ROOF SWITCH (ROOF CONSOLE BOX SUB-ASSEMBLY)


    1. Remove the sliding roof switch (roof console box sub-assembly).

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    2. Inspect the sliding roof switch (roof console box sub-assembly).

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      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)Click here

    • NG

      REPLACE SLIDING ROOF SWITCH (ROOF CONSOLE BOX SUB-ASSEMBLY)Click here