SLIDING ROOF SYSTEM, Diagnostic DTC:B2342

DTC Code DTC Name
B2342 Switch Failure

DESCRIPTION

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

DTC Code DTC Detection Condition Trouble Area
B2342 The sliding roof drive gear (sliding roof ECU) detects that the sliding roof switch in the 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

A01WW19E06

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check the DTCs Click here.

      Result
      Result Proceed to
      DTC B2342 is output A
      No DTC is output B

    B

    USE SIMULATION METHOD TO CHECK Click here

    A

  2. READ VALUE USING INTELLIGENT TESTER (SWITCH STATUS)


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

      Sliding Roof
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Open Switch Failure(Past) OPEN switch failure signal (Past)/ON or OFF

      ON: OPEN switch failure signal (Past)

      OFF: No OPEN switch failure signal (Past)

      		 -
      Close Switch Failure(Past) CLOSE switch failure signal (Past)/ON or OFF

      ON: CLOSE switch failure signal (Past)

      OFF: No CLOSE switch failure signal (Past)

      		 -
      Up Switch Failure(Past) UP switch failure signal (Past)/ON or OFF

      ON: UP switch failure signal (Past)

      OFF: No UP switch failure signal (Past)

      		 -
      Down Switch Failure(Past) DOWN switch failure signal (Past)/ON or OFF

      ON: DOWN switch failure signal (Past)

      OFF: No DOWN switch failure signal (Past)

      		 -
      Open Switch Failure(Current) OPEN switch failure signal (Current)/ON or OFF

      ON: OPEN switch failure signal (Current)

      OFF: No OPEN switch failure signal (Current)

      		 -
      Close Switch Failure(Current) CLOSE switch failure signal (Current)/ON or OFF

      ON: CLOSE switch failure signal (Current)

      OFF: No CLOSE switch failure signal (Current)

      		 -
      Up Switch Failure(Current) UP switch failure signal (Current)/ON or OFF

      ON: UP switch failure signal (Current)

      OFF: No UP switch failure signal (Current)

      		 -
      Down Switch Failure(Current) DOWN switch failure signal (Current)/ON or OFF

      ON: DOWN switch failure signal (Current)

      OFF: No DOWN switch failure signal (Current)

      		 -
      OK
      "OFF" appears on screen.

    OK

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

    NG

  3. INSPECT MAP LIGHT ASSEMBLY (SLIDING ROOF SWITCH)


    1. Remove the map light assembly Click here.

      A01WUIHE01

    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) UP switch is pressed Below 1 Ω
      A-24 (UP) - A-16 (GND9) UP switch is not pressed 10 kΩ or higher
      A-23 (DOWN) - A-16 (GND9) DOWN switch is pressed Below 1 Ω
      A-23 (DOWN) - A-16 (GND9) DOWN switch is not pressed 10 kΩ or higher
      B-3 (OPN) - A-16 (GND9) OPEN switch is pressed Below 1 Ω
      B-3 (OPN) - A-16 (GND9) OPEN switch is not pressed 10 kΩ or higher
      B-12 (CLS) - A-16 (GND9) CLOSE switch is pressed Below 1 Ω
      B-12 (CLS) - A-16 (GND9) CLOSE switch is not pressed 10 kΩ or higher

    NG

    REPLACE MAP LIGHT ASSEMBLY (SLIDING ROOF SWITCH) Click here

    OK

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


    1. Disconnect the R17 sliding roof drive gear sub-assembly (sliding roof ECU) connector.

    2. Disconnect the R7 and R12 map light assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      R17-4 (UP) - R7-24 (UP) Always Below 1 Ω
      R17-6 (DWN) - R7-23 (DOWN) Always Below 1 Ω
      R17-7 (OPN) - R12-3 (OPN) Always Below 1 Ω
      R17-5 (CLS) - R12-12 (CLS) Always Below 1 Ω
      R7-16 (GND9) - Body ground Always Below 1 Ω
      R17-12 (E) - Body ground Always Below 1 Ω
      R17-4 (UP) or R7-24 (UP) - Body ground Always 10 kΩ or higher
      R17-6 (DWN) or R7-23 (DOWN) - Body ground Always 10 kΩ or higher
      R17-7 (OPN) or R12-3 (OPN) - Body ground Always 10 kΩ or higher
      R17-9 (CLS) or R12-12 (CLS) - Body ground Always 10 kΩ or higher

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR