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 detects that the sliding roof switch in the map light assembly is stuck for 30 seconds or more.

DTC Code DTC Detection Condition Trouble Area
B2342 The sliding roof drive gear sub-assembly detects that the sliding roof switch in the map light assembly is stuck for 30 seconds or more.

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

  • Map light assembly (Sliding roof switch)

  • Harness or connector

WIRING DIAGRAM

B001HW1E08

CAUTION / NOTICE / HINT

Note

When the sliding roof drive gear sub-assembly is removed and reinstalled or replaced, the sliding roof drive gear sub-assembly must be initialized Click here.

PROCEDURE


  1. READ VALUE USING GTS (SLIDING ROOF)


    1. Using the GTS, read the Data List Click here.

      Sliding Roof
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Open Switch Failure (Past) Slide open switch failure signal (Past) / ON or OFF

      ON: Slide open switch signal failure (Past)

      OFF: No slide open switch signal failure (Past)

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

      ON: Slide close switch signal failure (Past)

      OFF: No slide close switch signal failure (Past)

      		 -
      Up Switch Failure (Past) Tilt up switch failure signal (Past) / ON or OFF

      ON: Tilt up switch signal failure (Past)

      OFF: No tilt up switch signal failure (Past)

      		 -
      Down Switch Failure (Past) Tilt down switch failure signal (Past) / ON or OFF

      ON: Tilt down switch signal failure (Past)

      OFF: No tilt down switch signal failure (Past)

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

      ON: Slide open switch signal failure (Current)

      OFF: No slide open switch signal failure (Current)

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

      ON: Slide close switch signal failure (Current)

      OFF: No slide close switch signal failure (Current)

      		 -
      Up Switch Failure (Current) Tilt up switch failure signal (Current) / ON or OFF

      ON: Tilt up switch signal failure (Current)

      OFF: No tilt up switch signal failure (Current)

      		 -
      Down Switch Failure (Current) Tilt down switch failure signal (Current) / ON or OFF

      ON: Tilt down switch signal failure (Current)

      OFF: No tilt down switch signal failure (Current)

      		 -
      OK
      "OFF" appears on the GTS screen.
      Result
      Result Proceed to
      In part or in whole item displayed "ON" A
      All items are displayed "OFF" B

    B

    REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY Click here

    A

  2. INSPECT MAP LIGHT ASSEMBLY

    B001CUHE11
    Text in Illustration
    *a

    Component without harness connected

    (Map Light Assembly)

    1. Remove the 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 (IG) - 23 (IG3) Always Below 1 Ω
      24 (UP) - 5 (GND3) Tilt up switch pressed Below 1 Ω
      24 (UP) - 5 (GND3) Tilt up switch not pressed 10 kΩ or higher
      25 (DOWN) - 5 (GND3) Tilt down switch pressed Below 1 Ω
      25 (DOWN) - 5 (GND3) Tilt down switch not pressed 10 kΩ or higher
      27 (OPN) - 5 (GND3) Slide open switch pressed Below 1 Ω
      27 (OPN) - 5 (GND3) Slide open switch not pressed 10 kΩ or higher
      28 (CLS) - 5 (GND3) Slide close switch pressed Below 1 Ω
      28 (CLS) - 5 (GND3) Slide close switch not pressed 10 kΩ or higher

    NG

    REPLACE MAP LIGHT ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU - MAP LIGHT ASSEMBLY AND BODY GROUND)


    1. Disconnect the W20 ECU connector.

    2. Disconnect the W7 switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      W20-4 (UP) - W7-24 (UP) Always Below 1 Ω
      W20-6 (DWN) - W7-25 (DOWN) Always Below 1 Ω
      W20-7 (OPN) - W7-27 (OPN) Always Below 1 Ω
      W20-5(CLS) - W7-28 (CLS) Always Below 1 Ω
      W7-5 (GND3) - Body ground Always Below 1 Ω
      W20-12 (E) - Body ground Always Below 1 Ω
      W20-1 (IG) - W7-23 (IG3) Always Below 1 Ω
      W20-4 (UP) or W7-24 (UP) - Body ground Always 10 kΩ or higher
      W20-6 (DWN) or W7-25 (DOWN) - Body ground Always 10 kΩ or higher
      W20-7 (OPN) or W7-27 (OPN) - Body ground Always 10 kΩ or higher
      W20-5 (CLS) or W7-28 (CLS) - Body ground Always 10 kΩ or higher
      W20-1 (IG) or W7-23 (IG3) - Body ground Always 10 kΩ or higher
      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      W7-8 (IG) - Body ground Ignition switch off Below 1 V
      W7-8 (IG) - Body ground Ignition switch ON 11 to 14 V

    OK

    REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR