SLIDING ROOF SYSTEM, Diagnostic DTC:B2343

DTC Code DTC Name
B2343 Position Initialization Incomplete

DESCRIPTION

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

DTC No. Detection Item DTC Detection Condition Trouble Area
B2343 Position Initialization Incomplete Sliding roof drive gear sub-assembly (sliding roof ECU) has not been initialized. Sliding roof drive gear sub-assembly (sliding roof ECU)

WIRING DIAGRAM

B004YBWE05

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.

    Click here

  • 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.

    Click here

Tech Tips

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

PROCEDURE


  1. 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

    NG

    PERFORM ACTIVE TEST USING GTS (Slide Roof) Click here

    OK

  2. CHECK SLIDING ROOF OPERATION


    1. Check the sliding roof auto operation.

      Click here

      OK
      Auto operation operates normally.
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY Click here

    OK

  3. 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 B2343 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    END (MALFUNCTION DUE TO INITIALIZATION FAILURE)

    NG

    REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY Click here

  4. PERFORM ACTIVE TEST USING GTS (Slide Roof)


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

      Click here


      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 -

      Body Electrical > Sliding Roof > Active Test
      Tester Display
      Slide Roof
      OK
      Slide roof is operated using GTS.
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY Click here

    OK

  5. READ VALUE USING GTS (Open Switch, Close Switch)


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

      Click here


      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

      		 -

      Body Electrical > Sliding Roof > Data List
      Tester Display
      Open Switch
      Close Switch
      OK
      The GTS display changes according to switch operation as shown in the table.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY Click here

    NG

  6. 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).

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE MAP LIGHT SUB-ASSEMBLY Click here

    OK

  7. 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-ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR