SLIDING ROOF SYSTEM, Diagnostic DTC:B2342

DTC Code DTC Name
B2342 Switch Failure

DESCRIPTION

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

DTC No. DTC Detection Condition Trouble Area
B2342 Sliding roof ECU (sliding roof drive gear sub-assembly) detects sliding roof switch (map light assembly) 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

WIRING DIAGRAM

Refer to DTC B2341 Click here.

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 removed and reinstalled or replaced, it requires initialization Click here.

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (SLIDING ROOF SWITCH)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power 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.

      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)/ON or OFF

      ON: Sliding roof open signal failure (Past)

      OFF: No sliding roof open signal failure (Past)

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

      ON: Sliding roof close signal failure (Past)

      OFF: No sliding roof close signal failure (Past)

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

      ON: Sliding roof open signal failure (Current)

      OFF: No sliding roof open signal failure (Current)

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

      ON: Sliding roof close signal failure (Current)

      OFF: No sliding roof close signal failure (Current)

      		 -
      OK
      "OFF" appears on the intelligent tester screen.

    NG

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

    OK

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

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


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

    2. Disconnect the sliding roof 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
      O9-7 (DWN) - Body ground Always 10 kΩ or higher
      O9-8 (UP) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT SLIDING ROOF SWITCH (MAP LIGHT ASSEMBLY)


    1. A003RKYE01
      Text in Illustration
      *a

      Component without harness connected

      (Sliding Roof Switch (Map Light Assembly))
      *1 Sliding Roof Switch

      Remove the sliding roof switch (map light assembly) Click here.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      8 (UP) - 7 (GND) TILT UP switch is pressed Below 1 Ω
      8 (UP) - 7 (GND) TILT UP switch is not pressed 10 kΩ or higher
      9 (DOWN) - 7 (GND) SLIDE OPEN switch is pressed Below 1 Ω
      9 (DOWN) - 7 (GND) SLIDE OPEN switch is not pressed 10 kΩ or higher

    NG

    REPLACE SLIDING ROOF SWITCH (MAP LIGHT ASSEMBLY) Click here

    OK

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