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SLIDING ROOF SYSTEM, Diagnostic DTC:B2342

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DTC Code DTC Name
B2342 Switch Failure
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DESCRIPTION

This DTC is stored 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
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WIRING DIAGRAM

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INSPECTION PROCEDURE

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PROCEDURE


  1. Click here

    CHECK FOR DTC


    1. Clear the DTCs (Click here).

    2. Check the DTCs (Click here).

      Table 1. Result
      Result Proceed to
      DTC B2342 is output A
      No DTC is output B

  2. Click here

    READ VALUE USING INTELLIGENT TESTER (SWITCH STATUS)


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

      Table 2. 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)

      		 -
      OK
      "Not Fail" appears on screen.

  3. Click here

    INSPECT MAP LIGHT ASSEMBLY (SLIDING ROOF SWITCH)


    1. Remove the map light (Click here).

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      19 (UP) - 17 (GND9) UP switch is pressed Below 1 Ω
      19 (UP) - 17 (GND9) UP switch is not pressed 10 kΩ or higher
      18 (DOWN) - 17 (GND9) DOWN switch is pressed Below 1 Ω
      18 (DOWN) - 17 (GND9) DOWN switch is not pressed 10 kΩ or higher
      8 (OPN) - 17 (GND9) OPEN switch is pressed Below 1 Ω
      8 (OPN) - 17 (GND9) OPEN switch is not pressed 10 kΩ or higher
      7 (CLS) - 17 (GND9) CLOSE switch is pressed Below 1 Ω
      7 (CLS) - 17 (GND9) CLOSE switch is not pressed 10 kΩ or higher

  4. Click here

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


    1. Disconnect the R5 drive gear connector.

    2. Disconnect the R7 map light connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      R5-10 (UP) - R7-19 (UP) Always Below 1 Ω
      R5-8 (DWN) - R7-18 (DOWN) Always Below 1 Ω
      R5-7 (OPN) - R7-8 (OPN) Always Below 1 Ω
      R5-9 (CLS) - R7-7 (CLS) Always Below 1 Ω
      R7-17 (GND9) - Body ground Always Below 1 Ω
      R5-2 (E) - Body ground Always Below 1 Ω
      R5-10 (UP) or R7-19 (UP) - Body ground Always 10 kΩ or higher
      R5-8 (DWN) or R7-18 (DOWN) - Body ground Always 10 kΩ or higher
      R5-7 (OPN) or R7-8 (OPN) - Body ground Always 10 kΩ or higher
      R5-9 (CLS) or R7-7 (CLS) - Body ground Always 10 kΩ or higher

  5. Click here

    USE SIMULATION METHOD TO CHECKClick here

  6. Click here

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

  7. Click here

    REPLACE MAP LIGHT ASSEMBLY (SLIDING ROOF SWITCH)Click here

  8. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR