ROOF SUNSHADE SYSTEM, Diagnostic DTC:B2342

DTC Code DTC Name
B2342 Switch Failure

DESCRIPTION

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

DTC No. Detection Item DTC Detection Condition Trouble Area
B2342 Switch Failure Roof sunshade ECU (sliding roof drive gear assembly) detects roof sunshade switch (map light assembly) is stuck for 30 seconds or more.
  • Roof sunshade ECU (Sliding roof drive gear assembly)

  • Roof sunshade switch (Map light assembly)

  • Wire harness or connector

WIRING DIAGRAM

Refer to DTC B2341.

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CAUTION / NOTICE / HINT

Note

When the roof sunshade ECU (sliding roof drive gear assembly) is removed and reinstalled or replaced, it requires initialization.

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PROCEDURE


  1. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

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

    5. Read the Data List according to the display on the GTS.


      Body Electrical > Sliding Roof > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Open Switch Failure(Past) Open switch failure signal (Past) ON or OFF

      ON: Roof sunshade open signal failure (Past)

      OFF: No roof sunshade open signal failure (Past)

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

      ON: Roof sunshade close signal failure (Past)

      OFF: No roof sunshade close signal failure (Past)

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

      ON: Roof sunshade open signal failure (Current)

      OFF: No roof sunshade open signal failure (Current)

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

      ON: Roof sunshade close signal failure (Current)

      OFF: No roof sunshade close signal failure (Current)

      -

      Body Electrical > Sliding Roof > Data List
      Tester Display
      Open Switch Failure(Past)
      Close Switch Failure(Past)
      Open Switch Failure(Current)
      Close Switch Failure(Current)
      OK
      OFF appears on the GTS screen.
      Result
      Proceed to
      OK
      NG

    OK
    NG
  2. CHECK HARNESS AND CONNECTOR (ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) - BODY GROUND)


    1. Disconnect the a1 roof sunshade ECU (sliding roof drive gear assembly) connector.

    2. Disconnect the O8 roof sunshade switch (map light assembly) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      a1-7 (OPEN) - Body ground Always 10 kΩ or higher
      a1-5 (CLOSE) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG
    OK
  3. INSPECT ROOF SUNSHADE SWITCH (MAP LIGHT ASSEMBLY)


    1. A00Y9CXC01
      *a

      Component without harness connected

      (Roof Sunshade Switch (Map Light Assembly))

      Remove the roof sunshade switch (map light assembly).

      Click here

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      12 (OPN) - 11 (GND) Open switch is pressed Below 1 Ω
      12 (OPN) - 11 (GND) Open switch is not pressed 10 kΩ or higher
      13 (CLS) - 11 (GND) Close switch is pressed Below 1 Ω
      13 (CLS) - 11 (GND) Close switch is not pressed 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK
    NG