SLIDING ROOF SYSTEM, Diagnostic DTC:B2341, B2344

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

DESCRIPTION

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

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

DTC Code DTC Detection Condition Trouble Area
B2341 Sensor (motor) failure (When the ECU enters fail-safe mode due to a problem with the motor)

  • Sliding roof ECU (Sliding roof drive gear assembly)

  • Sliding roof switch (Power slide door control switch) (for front side)

  • Sliding roof switch (Integration control and panel assembly) (for rear side)

  • Wire harness or connector
B2344 Position failure (When the ECU enters fail-safe mode due to a problem with the gear position)

  • Sliding roof ECU (Sliding roof drive gear assembly)

  • Sliding roof switch (Power slide door control switch) (for front side)

  • Sliding roof switch (Integration control and panel assembly) (for rear side)

  • Wire harness or connector

WIRING DIAGRAM

A01CBZIE04

INSPECTION PROCEDURE

Note

When the sliding roof ECU (sliding roof drive gear assembly) is replaced or removed and reinstalled, it requires initialization Click here.

PROCEDURE


  1. CHECK SLIDING ROOF OPERATION


    1. Check the sliding roof auto operation Click here.

      OK
      Auto operation operates normally.

    NG

    INITIALIZE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) Click here

    OK

  2. CHECK DTC OUTPUT


    1. Clear the DTC Click here.

    2. Recheck for DTCs.

      OK
      DTC B2341 or B2344 is not output.

    NG

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

    OK

    USE SIMULATION METHOD TO CHECK Click here

  3. INITIALIZE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)


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

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

    NG

    CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU - SLIDING ROOF SWITCH) Click here

    OK

  4. CHECK DTC OUTPUT


    1. Clear the DTC Click here.

    2. Recheck for DTCs.

      OK
      DTC B2341 or B2344 is not output.

    NG

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

    OK

    END

  5. CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU - SLIDING ROOF SWITCH)


    1. A01CBJSE05

      Disconnect the R14 switch connector.

    2. Disconnect the M2 ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      M2-6 (OPN) - R14-3 (OPN) Always Below 1 Ω
      M2-7 (CLS) - R14-8 (CLS) Always Below 1 Ω
      R14-7 (E) - Body ground Always Below 1 Ω
      R14-3 (OPN) - Body ground Always 10 kΩ or higher
      R14-8 (CLS) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT SLIDING ROOF SWITCH (POWER SLIDE DOOR CONTROL SWITCH) (for Front Side)


    1. A01CD6TE02

      Remove the sliding roof switch (power slide door control switch) (for front side) Click here.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      3 (OPN) - 7 (E) Front sliding roof switch OPEN Below 1 Ω

      3 (OPN) - 7 (E)

      8 (CLS) - 7 (E)

      		 Front sliding roof switch off 10 kΩ or higher
      8 (CLS) - 7 (E) Front sliding roof switch CLOSE Below 1 Ω

    NG

    REPLACE SLIDING ROOF SWITCH (POWER SLIDE DOOR CONTROL SWITCH) (for Front Side) Click here

    OK

  7. CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU - SLIDING ROOF SWITCH)


    1. A01CG3QE03

      Disconnect the R9 switch connector.

    2. Disconnect the M2 ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      M2-6 (OPN) - R9-3 (HPR+) Always Below 1 Ω
      M2-7 (CLS) - R9-2 (HPR-) Always Below 1 Ω
      R9-12 (E) - Body ground Always Below 1 Ω
      R9-2 (HPR-) - Body ground Always 10 kΩ or higher
      R9-3 (HPR+) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. INSPECT SLIDING ROOF SWITCH (INTEGRATION CONTROL AND PANEL ASSEMBLY) (for Rear Side)


    1. A01CENCE02

      Remove the sliding roof switch (integration control and panel assembly) (for rear side) Click here.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      2 (HPR-) - 12 (E) Rear sliding roof switch CLOSE Below 1 Ω

      2 (HPR-) - 12 (E)

      3 (HPR+) - 12 (E)

      		 Rear sliding roof switch off 10 kΩ or higher
      3 (HPR+) - 12 (E) Rear sliding roof switch OPEN Below 1 Ω

    NG

    REPLACE SLIDING ROOF SWITCH (INTEGRATION CONTROL AND PANEL ASSEMBLY) (for Rear Side) Click here

    OK

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