DTC    B2342    Switch Failure

for Preparation Click here


DESCRIPTION

This DTC is output when the sliding roof drive gear sub-assembly (sliding roof control ECU) detects that the OPEN, CLOSE, UP, or DOWN switch in the roof console box assembly (sliding roof control switch) is stuck for 30 seconds or more.

DTC No.
DTC Detection Condition
Trouble Area
B2342
Sliding roof drive gear sub-assembly (sliding roof control ECU) detects OPEN, CLOSE, UP, or DOWN switch in overhead junction block is stuck for 30 seconds or more
  1. Sliding roof drive gear sub-assembly (sliding roof control ECU)
  2. Roof console box assembly (sliding roof control switch)
  3. Wire harness

WIRING DIAGRAM

Refer to DTC B2341 (Click here).

INSPECTION PROCEDURE

1.READ VALUE ON INTELLIGENT TESTER (SLIDE OPEN AND TILT UP SWITCH)
  1. Use the DATA LIST to check if the sliding roof switch is functioning properly.

    SLIDE ROOF:

    Tester Display
    Measurement Item/Range
    Normal Condition
    Diagnostic Note
    Open SW
    (Open Switch)
    Slide switch open signal/ON or OFF
    ON: OPEN switch is pressed.
    OFF: OPEN switch is not pressed.
    -
    Close SW
    (Close Switch)
    Slide switch close signal/ON or OFF
    ON: CLOSE switch is pressed.
    OFF: CLOSE switch is not pressed.
    -
    Up SW
    (Up Switch)
    Tilt switch up signal/ON or OFF
    ON: UP switch is pressed.
    OFF: UP switch is not pressed.
    -
    Down SW
    (Down Switch)
    Tilt switch down signal/ON or OFF
    ON: DOWN switch is pressed.
    OFF: DOWN switch is not pressed.
    -
    OK:
    The intelligent tester displays as shown in the table according to the operation of each switch.


NG
Go to step 4
OK


2.CHECK SLIDING ROOF FUNCTION
  1. Check the auto operation with the OPEN, CLOSE, UP, and DOWN switches (Click here).

    OK:
    Auto operation operates normally with OPEN, CLOSE, UP, and DOWN switches.


NG
Go to step 7
OK


3.DELETE DTC
  1. Delete the DTCs (Click here).


NEXT

END 

4.INSPECT ROOF CONSOLE BOX ASSEMBLY (SLIDING ROOF CONTROL SWITCH)


    B131165E02
  1. Remove the roof console box assembly.

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

    Standard resistance:
    Tester Connection
    Switch Position
    Specified Condition
    Q6-1 (CLS) - Q6-3 (GND)
    CLOSE
    Below 100 Ω
    Q6-2 (OPN) - Q6-3 (GND)
    OPEN
    Below 100 Ω
    Q6-4 (DOWN) - Q6-3 (GND)
    DOWN
    Below 100 Ω
    Q6-5 (UP) - Q6-3 (GND)
    UP
    Below 100 Ω
    Q6-1 (CLS) - Q6-3 (GND)
    OPEN
    1 kΩ or higher
    Q6-2 (OPN) - Q6-3 (GND)
    CLOSE
    1 kΩ or higher
    Q6-4 (DOWN) - Q6-3 (GND)
    UP
    1 kΩ or higher
    Q6-5 (UP) - Q6-3 (GND)
    DOWN
    1 kΩ or higher


OK
Go to step 10
NG


5.REPLACE ROOF CONSOLE BOX ASSEMBLY (SLIDING ROOF CONTROL SWITCH)
  1. Temporarily replace the roof console box assembly (sliding roof control switch) with a new one or normally functioning one (Click here).


NEXT


6.DELETE DTC
  1. Delete the DTCs (Click here).


NEXT

END 

7.INITIALIZE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF CONTROL ECU)
  1. Check that the sliding roof drive gear sub-assembly can be initialized (Click here).

    OK:
    Sliding roof drive gear sub-assembly can be initialized.


NG
Go to step 10
OK


8.CHECK SLIDING ROOF FUNCTION
  1. Check the auto operation with the OPEN, CLOSE, UP, and DOWN switches (Click here).

    OK:
    Auto operation operates normally with OPEN, CLOSE, UP, and DOWN switches.


NG
REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF CONTROL ECU)
OK


9.DELETE DTC
  1. Delete the DTCs (Click here).


NEXT

END 

10.CHECK WIRE HARNESS (SLIDING ROOF CONTROL ECU - ROOF CONSOLE BOX ASSEMBLY)


    B131169E03
  1. Disconnect the Q12 and Q6 connectors.

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

    Standard resistance:
    Tester Connection
    Condition
    Specified Condition
    Q12-2 (E) - Q6-3 (GND)
    Always
    Below 1 Ω
    Q12-7 (OPN) - Q6-2 (OPN)
    Always
    Below 1 Ω
    Q12-8 (DWN) - Q6-4 (DOWN)
    Always
    Below 1 Ω
    Q12-9 (CLS) - Q6-1 (CLS)
    Always
    Below 1 Ω
    Q12-10 (UP) - Q6-5 (UP)
    Always
    Below 1 Ω
    Q6-1 (CLS) - Body ground
    Always
    10 kΩ or higher
    Q6-2 (OPN) - Body ground
    Always
    10 kΩ or higher
    Q6-3 (GND) - Body ground
    Always
    Below 1 Ω
    Q6-4 (DOWN) - Body ground
    Always
    10 kΩ or higher
    Q6-5 (UP) - Body ground
    Always
    10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF CONTROL ECU)