ROOF SUNSHADE SYSTEM, Diagnostic DTC:B2342

DTC Code DTC Name
B2342 Switch Failure

DESCRIPTION

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

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

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

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

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (ROOF SUNSHADE 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 (Roof Sunshade ECU (Sliding Roof Drive Gear Sub-assembly))
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Open Switch Failure (Current) Open switch failure signal (Current)/ON or OFF

      ON: Roof sunshade open signal failure (Current)

      OFF: Roof sunshade open signal not fail (Current)

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

      ON: Roof sunshade close signal failure (Current)

      OFF: Roof sunshade close signal not fail (Current)

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

      ON: Roof sunshade open signal failure (Past)

      OFF: Roof sunshade open signal not fail (Past)

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

      ON: Roof sunshade close signal failure (Past)

      OFF: Roof sunshade close signal not fail (Past)

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

    NG

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

    OK

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

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


    1. A01NHRDE09
      Text in Illustration
      *1

      Front view of wire harness connector

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

      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
      T2-9 (CLS) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (ROOF SUNSHADE SWITCH (MAP LIGHT ASSEMBLY))


    1. A01NHRDE09
      Text in Illustration
      *1

      Front view of wire harness connector

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

      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 OPEN switch off 10 kΩ or higher
      T2-9 (CLS) - Body ground CLOSE switch off 10 kΩ or higher

    NG

    REPLACE ROOF SUNSHADE SWITCH (MAP LIGHT ASSEMBLY) Click here

    OK

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