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 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 assembly) detects roof sunshade switch 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 Click here.

CAUTION / NOTICE / HINT

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

PROCEDURE


  1. READ VALUE USING GTS (ROOF SUNSHADE SWITCH)


    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.

      Sliding Roof
      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: 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)

      		 -
      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)

      		 -
      OK
      "OFF" appears on the GTS screen.

    OK

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

    NG

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


    1. Disconnect the z21 roof sunshade ECU (sliding roof drive gear assembly) connector.

    2. Disconnect the U3 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
      z21-7 (OPN) - Body ground Always 10 kΩ or higher
      z21-9 (CLS) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT ROOF SUNSHADE SWITCH (MAP LIGHT ASSEMBLY)


    1. A005D5PE04
      Text in Illustration
      *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
      8 (CLS) - 15 (GND1) CLOSE switch is pressed Below 1 Ω
      8 (CLS) - 15 (GND1) CLOSE switch is not pressed 10 kΩ or higher
      9 (OPN) - 15 (GND1) OPEN switch is pressed Below 1 Ω
      9 (OPN) - 15 (GND1) OPEN switch is not pressed 10 kΩ or higher

    OK

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

    NG

    REPLACE ROOF SUNSHADE SWITCH (MAP LIGHT ASSEMBLY) Click here