Dtc B2342 Switch Failure


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK FOR DTC

READ VALUE USING INTELLIGENT TESTER (SLIDING ROOF)

INSPECT MAP LIGHT ASSEMBLY

CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU - SLIDING ROOF SWITCH, BATTERY AND BODY GROUND)

DTC 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.
  1. Sliding roof drive gear sub-assembly (Sliding roof ECU)
  2. Map light assembly (Sliding roof switch)
  3. Harness or connector

WIRING DIAGRAM


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Sliding Roof Convertible.Sliding Roof System.
Dtc
  B2342  Switch Failure


INSPECTION PROCEDURE

NOTICE:
When the sliding roof drive gear sub-assembly is removed and reinstalled or replaced, the sliding roof drive gear sub-assembly must be initialized (LandCruiser RM000001VJR08IX.html).
1.CHECK FOR DTC
  1. Clear the DTCs (LandCruiser RM000001YIS044X.html).

  1. Check for DTCs (LandCruiser RM000001YIS044X.html).

    Result
    Result
    Proceed to
    DTC B2342 is output
    A
    DTC B2342 is not output
    B


B
USE SIMULATION METHOD TO CHECK (LandCruiser RM000003YMI00MX.html)
A


2.READ VALUE USING INTELLIGENT TESTER (SLIDING ROOF)
  1. Using the intelligent tester, read the Data List (LandCruiser RM000000UZR094X.html).

    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 intelligent tester screen.


NG
Go to step 3
OK

REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (LandCruiser RM000002LPC02UX.html)

3.INSPECT MAP LIGHT ASSEMBLY
Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Sliding Roof Convertible.Sliding Roof System.
Dtc
  B2342  Switch Failure
  1. Remove the map light assembly (LandCruiser RM000003YO9019X.html).

  1. 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
    Text in Illustration
    *a
    Component without harness connected
    (Map Light Assembly)


NG
REPLACE MAP LIGHT ASSEMBLY (LandCruiser RM000003YO9019X.html)
OK


4.CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU - SLIDING ROOF SWITCH, BATTERY AND BODY GROUND)
  1. Disconnect the W2 ECU connector.

  1. Disconnect the W7 switch connector.

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

    Standard Resistance:
    Tester Connection
    Condition
    Specified Condition
    W2-10 (UP) - W7-24 (UP)
    Always
    Below 1 Ω
    W2-8 (DWN) - W7-25 (DOWN)
    Always
    Below 1 Ω
    W2-7 (OPN) - W7-27 (OPN)
    Always
    Below 1 Ω
    W2-9 (CLS) - W7-28 (CLS)
    Always
    Below 1 Ω
    W7-5 (GND3) - Body ground
    Always
    Below 1 Ω
    W2-2 (E) - Body ground
    Always
    Below 1 Ω
    W2-5 (IG) - W7-23 (IG3)
    Always
    Below 1 Ω
    W2-10 (UP) or W7-24 (UP) - Body ground
    Always
    10 kΩ or higher
    W2-8 (DWN) or W7-25 (DOWN) - Body ground
    Always
    10 kΩ or higher
    W2-7 (OPN) or W7-27 (OPN) - Body ground
    Always
    10 kΩ or higher
    W2-9 (CLS) or W7-28 (CLS) - Body ground
    Always
    10 kΩ or higher
    W2-5 (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


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (LandCruiser RM000002LPC02UX.html)