SLIDING ROOF SYSTEM, Diagnostic DTC:B2342

DTC Code DTC Name
B2342 Switch Failure

DESCRIPTION

This DTC is output when the sliding roof drive gear sub-assembly (sliding roof control ECU) detects that the OPEN, CLOSE, UP or DOWN switch in the roof console box assembly (sliding roof switch assembly) is stuck for 30 seconds or more.

DTC No. DTC Detection Condition Trouble Area
B2342 Sliding roof drive gear sub-assembly (sliding roof control ECU) detects OPEN, CLOSE, UP or DOWN switch in roof console box assembly (sliding roof switch assembly) is stuck for 30 seconds or more

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

  • Roof console box assembly (sliding roof switch assembly)

  • Wire harness

WIRING DIAGRAM

Refer to DTC B2341 Click here.

INSPECTION PROCEDURE

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (SLIDE OPEN AND TILT UP SWITCH)


    1. Use the DATA LIST to check if the sliding roof switch assembly is functioning properly.

      Sliding roof ECU
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note

      OPEN SW

      (Open Switch)

      		 Slide switch open signal/ON or OFF

      ON: OPEN switch is pressed.

      OFF: OPEN switch is not pressed.

      		 -

      CLOSE SW

      (Close Switch)

      		 Slide switch close signal/ON or OFF

      ON: CLOSE switch is pressed.

      OFF: CLOSE switch is not pressed.

      		 -

      UP SW

      (Up Switch)

      		 Tilt switch up signal/ON or OFF

      ON: UP switch is pressed.

      OFF: UP switch is not pressed.

      		 -

      DOWN SW

      (Down Switch)

      		 Tilt switch down signal/ON or OFF

      ON: DOWN switch is pressed.

      OFF: DOWN switch is not pressed.

      		 -
      OK
      The intelligent tester displays as shown in the table according to the operation of each switch.

    NG

    INSPECT ROOF CONSOLE BOX ASSEMBLY (SLIDING ROOF SWITCH ASSEMBLY) Click here

    OK

  2. CHECK SLIDING ROOF FUNCTION


    1. Check the auto operation with the OPEN, CLOSE, UP and DOWN switches Click here.

      OK
      Auto operation operates normally with OPEN, CLOSE, UP and DOWN switches.

    NG

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

    OK

  3. RECHECK FOR DTC


    1. Delete the DTCs Click here.

    2. Recheck for DTCs Click here.

      Tech Tips

      If DTCs are detected frequently, replace the ECU.

      OK
      DTC is not output.

    NG

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

    OK

    END

  4. INSPECT ROOF CONSOLE BOX ASSEMBLY (SLIDING ROOF SWITCH ASSEMBLY)


    1. A017ER5E02

      Remove the roof console box assembly.

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

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      Q1-3 (CLS) - Q1-2 (GND) CLOSE Below 100 Ω
      Q1-4 (OPN) - Q6-2 (GND) OPEN Below 100 Ω
      Q1-5 (DOWN) - Q1-2 (GND) DOWN Below 100 Ω
      Q1-6 (UP) - Q1-2 (GND) UP Below 100 Ω
      Q1-3 (CLS) - Q1-2 (GND) OPEN 1 kΩ or higher
      Q1-4 (OPN) - Q1-2 (GND) CLOSE 1 kΩ or higher
      Q1-5 (DOWN) - Q1-2 (GND) UP 1 kΩ or higher
      Q1-6 (UP) - Q1-2 (GND) DOWN 1 kΩ or higher

    NG

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

    OK

  5. CHECK WIRE HARNESS (SLIDING ROOF CONTROL ECU - ROOF CONSOLE BOX ASSEMBLY)


    1. A017BC9E02

      Disconnect the Q12 and Q1 connectors.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      Q12-2 (E) - Q1-2 (GND) Always Below 1 Ω
      Q12-7 (OPN) - Q1-4 (OPN) Always Below 1 Ω
      Q12-8 (DWN) - Q1-5 (DOWN) Always Below 1 Ω
      Q12-9 (CLS) - Q1-3 (CLS) Always Below 1 Ω
      Q12-10 (UP) - Q1-6 (UP) Always Below 1 Ω
      Q1-3 (CLS) - Body ground Always 10 kΩ or higher
      Q1-4 (OPN) - Body ground Always 10 kΩ or higher
      Q1-2 (GND) - Body ground Always Below 1 Ω
      Q1-5 (DOWN) - Body ground Always 10 kΩ or higher
      Q1-6 (UP) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

  6. REPLACE ROOF CONSOLE BOX ASSEMBLY (SLIDING ROOF SWITCH ASSEMBLY)


    1. Temporarily replace the roof console box assembly (sliding roof switch assembly) with a new one or normally functioning one Click here.

    2. Perform the initialization Click here


    NEXT

  7. RECHECK FOR DTC


    1. Delete the DTCs Click here.

    2. Recheck for DTCs Click here.

      Tech Tips

      If DTCs are detected frequently, replace the ECU.

      OK
      DTC is not output.

    NG

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

    OK

    END

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


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

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

    NG

    CHECK WIRE HARNESS (SLIDING ROOF CONTROL ECU - ROOF CONSOLE BOX ASSEMBLY) Click here

    OK

  9. CHECK SLIDING ROOF FUNCTION


    1. Check the auto operation with the OPEN, CLOSE, UP and DOWN switches Click here.

      OK
      Auto operation operates normally with OPEN, CLOSE, UP and DOWN switches.

    NG

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

    OK

  10. RECHECK FOR DTC


    1. Delete the DTCs Click here.

    2. Recheck for DTCs Click here.

      Tech Tips

      If DTCs are detected frequently, replace the ECU.

      OK
      DTC is not output.

    NG

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

    OK

    END

  11. CHECK WIRE HARNESS (SLIDING ROOF CONTROL ECU - ROOF CONSOLE BOX ASSEMBLY)


    1. A017BC9E02

      Disconnect the Q12 and Q1 connectors.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      Q12-2 (E) - Q1-2 (GND) Always Below 1 Ω
      Q12-7 (OPN) - Q1-4 (OPN) Always Below 1 Ω
      Q12-8 (DWN) - Q1-5 (DOWN) Always Below 1 Ω
      Q12-9 (CLS) - Q1-3 (CLS) Always Below 1 Ω
      Q12-10 (UP) - Q1-6 (UP) Always Below 1 Ω
      Q1-3 (CLS) - Body ground Always 10 kΩ or higher
      Q1-4 (OPN) - Body ground Always 10 kΩ or higher
      Q1-2 (GND) - Body ground Always Below 1 Ω
      Q1-5 (DOWN) - Body ground Always 10 kΩ or higher
      Q1-6 (UP) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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