SLIDING ROOF SYSTEM, Diagnostic DTC:B2342

DTC Code DTC Name
B2342 Switch Failure

DESCRIPTION

This DTC is output when the sliding roof drive gear (sliding roof ECU) detects that the SLIDE OPEN or TILT UP switch in the map light is stuck for 30 seconds or more.

DTC Code DTC Detection Condition Trouble Area
B2342 Sliding roof drive gear (sliding roof ECU) detects sliding roof switch in map light is stuck for 30 seconds or more

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

  • Map light assembly (sliding roof switch)

  • Harness or connector

WIRING DIAGRAM

Refer to DTC B2341 Click here.

INSPECTION PROCEDURE

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (SLIDING ROOF SWITCH)


    1. Use the Data List to check if the sliding roof switch is functioning properly.

      Sliding Roof
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Down Switch Failure(Current) Down switch failure signal (Current)/Fail or Not Fail

      Fail: Sliding roof tilt down signal failure (Current)

      Not Fail: Sliding roof tilt down signal not fail (Current)

      		 -
      Up Switch Failure(Current) Up switch failure signal (Current)/Fail or Not Fail

      Fail: Sliding roof tilt up signal failure (Current)

      Not Fail: Sliding roof tilt up signal not fail (Current)

      		 -
      Close Switch Failure(Current) Close switch failure signal (Current)/Fail or Not Fail

      Fail: Sliding roof close signal failure (Current)

      Not Fail: Sliding roof close signal not fail (Current)

      		 -
      Open Switch Failure(Current) Open switch failure signal (Current)/Fail or Not Fail

      Fail: Sliding roof open signal failure (Current)

      Not Fail: Sliding roof open signal not fail (Current)

      		 -
      Down Switch Failure(Past) Down switch failure signal (Past)/Fail or Not Fail

      Fail: Sliding roof tilt down signal failure (Past)

      Not Fail: Sliding roof tilt down signal not fail (Past)

      		 -
      Up Switch Failure(Past) Up switch failure signal (Past)/Fail or Not Fail

      Fail: Sliding roof tilt up signal failure (Past)

      Not Fail: Sliding roof tilt up signal not fail (Past)

      		 -
      Close Switch Failure(Past) Close switch failure signal (Past)/Fail or Not Fail

      Fail: Sliding roof close signal failure (Past)

      Not Fail: Sliding roof close signal not fail (Past)

      		 -
      Open Switch Failure(Past) Open switch failure signal (Past)/Fail or Not Fail

      Fail: Sliding roof open signal failure (Past)

      Not Fail: Sliding roof open signal not fail (Past)

      		 -

    NG

    INSPECT MAP LIGHT ASSEMBLY (SLIDING ROOF SWITCH) Click here

    OK

  2. CHECK SLIDING ROOF FUNCTION


    1. Check the AUTO operation with the switch Click here.

      OK
      AUTO operation operates normally.

    NG

    PERFORM INITIALIZATION (SLIDING ROOF DRIVE GEAR) Click here

    OK

  3. CLEAR DTC


    1. Clear the DTC Click here.


    NEXT

    END

  4. INSPECT MAP LIGHT ASSEMBLY (SLIDING ROOF SWITCH)

    A01H189E01

    1. Remove the map light for standard body Click here or long body Click here.

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

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      A-24 (UP) - A-16 (GND9) TILT UP Below 1 Ω
      A-24 (UP) - A-16 (GND9) Off 10 kΩ or higher
      A-23 (DOWN) - A-16 (GND9) TILT DOWN Below 1 Ω
      A-23 (DOWN) - A-16 (GND9) Off 10 kΩ or higher
      B-3 (OPN) - A-16 (GND9) SLIDE OPEN Below 1 Ω
      B-3 (OPN) - A-16 (GND9) Off 10 kΩ or higher
      B-12 (CLS) - A-16 (GND9) SLIDE CLOSE Below 1 Ω
      B-12 (CLS) - A-16 (GND9) Off 10 kΩ or higher

    NG

    REPLACE MAP LIGHT ASSEMBLY (SLIDING ROOF SWITCH) Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (SLIDING ROOF DRIVE GEAR - MAP LIGHT)

    A01GX0FE01

    1. Disconnect the X5 drive gear connector.

    2. Disconnect the X4 and X6 map light connectors.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      X5-10 (UP) - X4-24 (UP) Always Below 1 Ω
      X5-8 (DWN) - X4-23 (DOWN) Always Below 1 Ω
      X5-7 (OPN) - X6-3 (OPN) Always Below 1 Ω
      X5-9 (CLS) - X6-12 (CLS) Always Below 1 Ω
      X4-16 (GND9) - Body ground Always Below 1 Ω
      X5-2 (E) - Body ground Always Below 1 Ω
      X5-10 (UP) or X4-24 (UP) - Body ground Always 10 kΩ or higher
      X5-8 (DWN) or X4-23 (DOWN) - Body ground Always 10 kΩ or higher
      X5-7 (OPN) or X6-3 (OPN) - Body ground Always 10 kΩ or higher
      X5-9 (CLS) or X6-12 (CLS) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

  6. REPLACE MAP LIGHT ASSEMBLY (SLIDING ROOF SWITCH)


    1. Replace the map light assembly (sliding roof switch) with a new one for standard body Click here or long body Click here.


    NEXT

  7. CLEAR DTC


    1. Clear the DTC Click here.


    NEXT

    END

  8. PERFORM INITIALIZATION (SLIDING ROOF DRIVE GEAR)


    1. Check that the sliding roof drive gear can be initialized Click here.

      OK
      Sliding roof drive gear can be initialized.

    NG

    CHECK HARNESS AND CONNECTOR (SLIDING ROOF DRIVE GEAR - MAP LIGHT) Click here

    OK

  9. CHECK SLIDING ROOF FUNCTION


    1. Check the AUTO operation with the switch Click here.

      OK
      AUTO operation operates normally.

    NG

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

    OK

  10. CLEAR DTC


    1. Clear the DTC Click here.


    NEXT

    END

  11. CHECK HARNESS AND CONNECTOR (SLIDING ROOF DRIVE GEAR - MAP LIGHT)

    A01GX0FE01

    1. Disconnect the X5 drive gear connector.

    2. Disconnect the X4 and X6 map light connectors.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      X5-10 (UP) - X4-24 (UP) Always Below 1 Ω
      X5-8 (DWN) - X4-23 (DOWN) Always Below 1 Ω
      X5-7 (OPN) - X6-3 (OPN) Always Below 1 Ω
      X5-9 (CLS) - X6-12 (CLS) Always Below 1 Ω
      X4-16 (GND9) - Body ground Always Below 1 Ω
      X5-2 (E) - Body ground Always Below 1 Ω
      X5-10 (UP) or X4-24 (UP) - Body ground Always 10 kΩ or higher
      X5-8 (DWN) or X4-23 (DOWN) - Body ground Always 10 kΩ or higher
      X5-7 (OPN) or X6-3 (OPN) - Body ground Always 10 kΩ or higher
      X5-9 (CLS) or X6-12 (CLS) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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