Dtc B2342 Switch Failure

Vehicle Exterior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Sliding Roof Convertible. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK FOR DTC

READ VALUE USING INTELLIGENT TESTER (SWITCH STATUS)

INSPECT MAP LIGHT ASSEMBLY (SLIDING ROOF SWITCH)

CHECK HARNESS AND CONNECTOR (SLIDING ROOF DRIVE GEAR - MAP LIGHT)

DTC B2342 Switch Failure


DESCRIPTION

This DTC is stored when the sliding roof drive gear (sliding roof ECU) detects that the SLIDE OPEN or TILT UP switch in the map light is stuck for 30 seconds or more.

DTC Code
DTC Detection Condition
Trouble Area
B2342
Sliding roof drive gear (sliding roof ECU) detects sliding roof switch in map light 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. Urj200, 202 Grj200 Vdj200.Sliding Roof Convertible.Sliding Roof System. Dtc B2342 Switch Failure


INSPECTION PROCEDURE

1.CHECK FOR DTC

  1. Clear the DTCs (Click here).

  1. Check the DTCs (Click here).

    Result
    Result
    		Proceed to
    DTC B2342 is output
    		A
    No DTC is output
    		B


B
USE SIMULATION METHOD TO CHECK (Click here)
A


2.READ VALUE USING INTELLIGENT TESTER (SWITCH STATUS)

  1. Use the Data List to check if the sliding roof switch is functioning properly (Click here).

    Sliding Roof
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Down Switch Failure(Current)
    		Down switch failure signal (Current)/Fail or Not Fail
    		Fail: Sliding roof tilt down signal failure (Current)
    Not Fail: Sliding roof tilt down signal not fail (Current)
    		-
    Up Switch Failure(Current)
    		Up switch failure signal (Current)/Fail or Not Fail
    		Fail: Sliding roof tilt up signal failure (Current)
    Not Fail: Sliding roof tilt up signal not fail (Current)
    		-
    Close Switch Failure(Current)
    		Close switch failure signal (Current)/Fail or Not Fail
    		Fail: Sliding roof close signal failure (Current)
    Not Fail: Sliding roof close signal not fail (Current)
    		-
    Open Switch Failure(Current)
    		Open switch failure signal (Current)/Fail or Not Fail
    		Fail: Sliding roof open signal failure (Current)
    Not Fail: Sliding roof open signal not fail (Current)
    		-
    Down Switch Failure(Past)
    		Down switch failure signal (Past)/Fail or Not Fail
    		Fail: Sliding roof tilt down signal failure (Past)
    Not Fail: Sliding roof tilt down signal not fail (Past)
    		-
    Up Switch Failure(Past)
    		Up switch failure signal (Past)/Fail or Not Fail
    		Fail: Sliding roof tilt up signal failure (Past)
    Not Fail: Sliding roof tilt up signal not fail (Past)
    		-
    Close Switch Failure(Past)
    		Close switch failure signal (Past)/Fail or Not Fail
    		Fail: Sliding roof close signal failure (Past)
    Not Fail: Sliding roof close signal not fail (Past)
    		-
    Open Switch Failure(Past)
    		Open switch failure signal (Past)/Fail or Not Fail
    		Fail: Sliding roof open signal failure (Past)
    Not Fail: Sliding roof open signal not fail (Past)
    		-
OK:
"Not Fail" appears on screen.


NG
Go to step 3
OK

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

3.INSPECT MAP LIGHT ASSEMBLY (SLIDING ROOF SWITCH)
Land Cruiser. Urj200, 202 Grj200 Vdj200.Sliding Roof Convertible.Sliding Roof System. Dtc B2342 Switch Failure

  1. Remove the map light (Click here).

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    19 (UP) - 17 (GND9)
    		UP switch is pressed
    		Below 1 Ω
    19 (UP) - 17 (GND9)
    		UP switch is not pressed
    		10 kΩ or higher
    18 (DOWN) - 17 (GND9)
    		DOWN switch is pressed
    		Below 1 Ω
    18 (DOWN) - 17 (GND9)
    		DOWN switch is not pressed
    		10 kΩ or higher
    8 (OPN) - 17 (GND9)
    		OPEN switch is pressed
    		Below 1 Ω
    8 (OPN) - 17 (GND9)
    		OPEN switch is not pressed
    		10 kΩ or higher
    7 (CLS) - 17 (GND9)
    		CLOSE switch is pressed
    		Below 1 Ω
    7 (CLS) - 17 (GND9)
    		CLOSE switch is not pressed
    		10 kΩ or higher


NG
REPLACE MAP LIGHT ASSEMBLY (SLIDING ROOF SWITCH) (Click here)
OK


4.CHECK HARNESS AND CONNECTOR (SLIDING ROOF DRIVE GEAR - MAP LIGHT)
Land Cruiser. Urj200, 202 Grj200 Vdj200.Sliding Roof Convertible.Sliding Roof System. Dtc B2342 Switch Failure

  1. Disconnect the R5 drive gear connector.

  1. Disconnect the R7 map light connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    R5-10 (UP) - R7-19 (UP)
    		Always
    		Below 1 Ω
    R5-8 (DWN) - R7-18 (DOWN)
    		Always
    		Below 1 Ω
    R5-7 (OPN) - R7-8 (OPN)
    		Always
    		Below 1 Ω
    R5-9 (CLS) - R7-7 (CLS)
    		Always
    		Below 1 Ω
    R7-17 (GND9) - Body ground
    		Always
    		Below 1 Ω
    R5-2 (E) - Body ground
    		Always
    		Below 1 Ω
    R5-10 (UP) or R7-19 (UP) - Body ground
    		Always
    		10 kΩ or higher
    R5-8 (DWN) or R7-18 (DOWN) - Body ground
    		Always
    		10 kΩ or higher
    R5-7 (OPN) or R7-8 (OPN) - Body ground
    		Always
    		10 kΩ or higher
    R5-9 (CLS) or R7-7 (CLS) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

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