SLIDING ROOF SYSTEM, Diagnostic DTC:B2341, B2344

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

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 ECU enters fail-safe mode due to a problem with the motor)

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

  • Map light assembly (Sliding roof control switch)

  • Harness or connector
B2344 Position Failure Position failure (When the 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 assembly (Sliding roof control switch)

  • Harness or connector

WIRING DIAGRAM

A01V6UEE16

CAUTION / NOTICE / HINT

Note


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

    Click here

  • 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 the How to Proceed with Troubleshooting procedure.

    Click here

PROCEDURE


  1. CHECK SLIDING ROOF OPERATION


    1. Check the sliding roof auto operation.

      Click here

      OK
      Auto operation operates normally.
      Result
      Proceed to
      OK
      NG

    NG

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

    OK

  2. CHECK DTC OUTPUT


    1. Clear the DTCs.

      Click here


      Body Electrical > Sliding Roof > Clear DTCs

    2. Check for DTCs.

      Click here


      Body Electrical > Sliding Roof > Trouble Codes
      OK
      DTC B2341 or B2344 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

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

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


    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

    NG

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

    OK

  4. CHECK DTC OUTPUT


    1. Clear the DTCs.

      Click here


      Body Electrical > Sliding Roof > Clear DTCs

    2. Check for DTCs.

      Click here


      Body Electrical > Sliding Roof > Trouble Codes
      OK
      DTC B2341 or B2344 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    END (PROBLEM DUE TO INITIALIZATION FAILURE)

    NG

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

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


    1. Disconnect the Q16 map light assembly (sliding roof control switch) connector.

    2. Disconnect the Q8 sliding roof drive gear sub-assembly (sliding roof ECU) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q8-5 (CLS) - Q16-8 (CLS) Always Below 1 Ω
      Q8-5 (CLS) - Body ground Always 10 kΩ or higher
      Q8-7 (OPN) - Q16-7 (OPN) Always Below 1 Ω
      Q8-7 (OPN) - Body ground Always 10 kΩ or higher
      Q8-6 (DWN) - Q16-17 (DOWN) Always Below 1 Ω
      Q8-6 (DWN) - Body ground Always 10 kΩ or higher
      Q8-4 (UP) - Q16-16 (UP) Always Below 1 Ω
      Q8-4 (UP) - Body ground Always 10 kΩ or higher
      Q16-20 (GND) - Body ground Always Below 1 Ω
      Q8-12 (E) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT MAP LIGHT ASSEMBLY (SLIDING ROOF CONTROL SWITCH)


    1. Remove the map light assembly (sliding roof control switch).

      Click here

    2. Inspect the map light assembly (sliding roof control switch).

      Click here

      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPLACE MAP LIGHT ASSEMBLY (SLIDING ROOF CONTROL SWITCH) Click here