SLIDING ROOF SYSTEM, Diagnostic DTC:B2342

DTC Code DTC Name
B2342 Switch Failure

DESCRIPTION

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

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B2342

Switch Failure

Sliding roof drive gear sub-assembly (sliding roof ECU) detects sliding roof control switch is stuck for 30 seconds or more.

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

  • Map light assembly (Sliding roof control switch)

  • Harness or connector

WIRING DIAGRAM

Refer to DTC B2341.

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CAUTION / NOTICE / HINT

Note:

When the sliding roof drive gear sub-assembly (sliding roof ECU) 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 power switch on (IG).

    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: Sliding roof open switch failure signal (Past)

      OFF: No sliding roof open switch failure signal (Past)

      -

      Close Switch Failure(Past)

      Close switch failure signal (Past)

      ON or OFF

      ON: Sliding roof close switch failure signal (Past)

      OFF: No sliding roof close switch failure signal (Past)

      -

      Up Switch Failure(Past)

      Up switch failure signal (Past)

      ON or OFF

      ON: Sliding roof up switch failure signal (Past)

      OFF: No sliding roof up switch failure signal (Past)

      -

      Down Switch Failure(Past)

      Down switch failure signal (Past)

      ON or OFF

      ON: Sliding roof down switch failure signal (Past)

      OFF: No sliding roof down switch failure signal (Past)

      -

      Open Switch Failure(Current)

      Open switch failure signal (Current)

      ON or OFF

      ON: Sliding roof open switch failure signal (Current)

      OFF: No sliding roof open switch failure signal (Current)

      -

      Close Switch Failure(Current)

      Close switch failure signal (Current)

      ON or OFF

      ON: Sliding roof close switch failure signal (Current)

      OFF: No sliding roof close switch failure signal (Current)

      -

      Up Switch Failure(Current)

      Up switch failure signal (Current)

      ON or OFF

      ON: Sliding roof up switch failure signal (Current)

      OFF: No sliding roof up switch failure signal (Current)

      -

      Down Switch Failure(Current)

      Down switch failure signal (Current)

      ON or OFF

      ON: Sliding roof down switch failure signal (Current)

      OFF: No sliding roof down switch failure signal (Current)

      -

      Body Electrical > Sliding Roof > Data List

      Tester Display

      Open Switch Failure(Past)

      Close Switch Failure(Past)

      Up Switch Failure(Past)

      Down Switch Failure(Past)

      Open Switch Failure(Current)

      Close Switch Failure(Current)

      Up Switch Failure(Current)

      Down Switch Failure(Current)

    Result

    Proceed to

    All items are displayed "OFF"

    In part or in whole item displayed "ON"
    All items are displayed "OFF"

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

    Click here

    In part or in whole item displayed "ON"

  2. CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU - SLIDING ROOF CONTROL SWITCH AND BODY GROUND)

    1. Disconnect the Q8 sliding roof drive gear sub-assembly (sliding roof ECU) connector.

    2. Disconnect the Q16 map light assembly (sliding roof control switch) connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      Q8-5 (CLS) - Q16-8 (CLS)

      Always

      Below 1 Ω

      Q8-5 (CLS) - Body ground

      Always

      10 kΩ or higher

      Q8-7 (OPN) - Q16-7 (OPN)

      Always

      Below 1 Ω

      Q8-7 (OPN) - Body ground

      Always

      10 kΩ or higher

      Q8-6 (DWN) - Q16-17 (DOWN)

      Always

      Below 1 Ω

      Q8-6 (DWN) - Body ground

      Always

      10 kΩ or higher

      Q8-4 (UP) - Q16-16 (UP)

      Always

      Below 1 Ω

      Q8-4 (UP) - Body ground

      Always

      10 kΩ or higher

      Q16-20 (GND) - Body ground

      Always

      Below 1 Ω

      Q8-12 (E) - Body ground

      Always

      Below 1 Ω

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT MAP LIGHT ASSEMBLY (SLIDING ROOF CONTROL SWITCH)

    1. E330413N01

      Remove the map light assembly (sliding roof control switch).

      Click here

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

      Standard Resistance

      Tester Connection

      Switch Condition

      Specified Condition

      16 (UP) - 20 (GND)

      UP switch is pressed

      Below 1 Ω

      16 (UP) - 20 (GND)

      UP switch is not pressed

      10 kΩ or higher

      17 (DOWN) - 20 (GND)

      DOWN switch is pressed

      Below 1 Ω

      17 (DOWN) - 20 (GND)

      DOWN switch is not pressed

      10 kΩ or higher

      7 (OPN) - 20 (GND)

      OPEN switch is pressed

      Below 1 Ω

      7 (OPN) - 20 (GND)

      OPEN switch is not pressed

      10 kΩ or higher

      8 (CLS) - 20 (GND)

      CLOSE switch is pressed

      Below 1 Ω

      8 (CLS) - 20 (GND)

      CLOSE switch is not pressed

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    OK

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

    Click here

    NG

    REPLACE MAP LIGHT ASSEMBLY (SLIDING ROOF CONTROL SWITCH)

    Click here