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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 output when the sliding roof ECU (sliding roof drive gear sub-assembly) detects that the sliding roof switch is stuck for 30 seconds or more.

DTC Code DTC Detection Condition Trouble Area
B2342 Sliding roof ECU (sliding roof drive gear sub-assembly) detects sliding roof switch is stuck for 30 seconds or more.

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

  • Sliding roof switch (Map light assembly)

  • Wire harness or connector
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WIRING DIAGRAM

Refer to DTC B2341 (Click here).

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INSPECTION PROCEDURE

Note:

  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.

  • When the sliding roof ECU (sliding roof drive gear sub-assembly) is replaced or removed and reinstalled, it requires initialization (Click here).

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PROCEDURE


  1. Click here

    READ VALUE USING INTELLIGENT TESTER (SLIDING ROOF SWITCH)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the intelligent tester on.

    4. Enter the following menus: Body / Sliding Roof / Data List.

    5. Read the Data List according to the display on the intelligent tester.

      Table 1. Sliding Roof (Sliding Roof ECU (Sliding Roof Drive Gear Sub-assembly))
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      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)

      		 -
      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)

      		 -
      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)

      		 -
      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)

      		 -
      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)

      		 -
      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)

      		 -
      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)

      		 -
      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)

      		 -
      OK
      "Not Fail" appears on the intelligent tester screen.

  2. Click here

    CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU - BODY GROUND)


    1. A019KQUE07

      Disconnect the T2 ECU connector.

    2. Disconnect the T10 switch connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      T2-7 (OPN) - Body ground Always 10 kΩ or higher
      T2-8 (DWN) - Body ground Always 10 kΩ or higher
      T2-9 (CLS) - Body ground Always 10 kΩ or higher
      T2-10 (UP) - Body ground Always 10 kΩ or higher
      Table 2. Text in Illustration
      *1

      Front view of wire harness connector

      (to Sliding Roof ECU (Sliding Roof Drive Gear Sub-assembly))

  3. Click here

    CHECK HARNESS AND CONNECTOR (SLIDING ROOF SWITCH (MAP LIGHT ASSEMBLY))


    1. A019KQUE07

      Reconnect the T10 switch connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      T2-7 (OPN) - Body ground SLIDE OPEN switch off 10 kΩ or higher
      T2-8 (DWN) - Body ground TILT DOWN switch off 10 kΩ or higher
      T2-9 (CLS) - Body ground SLIDE CLOSE switch off 10 kΩ or higher
      T2-10 (UP) - Body ground TILT UP switch off 10 kΩ or higher
      Table 3. Text in Illustration
      *1

      Front view of wire harness connector

      (to Sliding Roof ECU (Sliding Roof Drive Gear Sub-assembly))

  4. Click here

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

  5. Click here

    REPLACE SLIDING ROOF SWITCH (MAP LIGHT ASSEMBLY)Click here

  6. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR