DTC    B2342    Switch Failure

for Preparation Click here


DESCRIPTION

This DTC is output when the sliding roof ECU (sliding roof drive gear assembly) detects that the sliding roof switch is stuck for 30 seconds or more.

DTC No.
DTC Detection Condition
Trouble Area
B2342
Sliding roof ECU (sliding roof drive gear assembly) detects sliding roof switch is stuck for 30 seconds or more.
  1. Sliding roof ECU (Sliding roof drive gear assembly)
  2. Sliding roof switch (Map light assembly)
  3. Wire harness or connector

WIRING DIAGRAM

Refer to DTC B2341 (Click here).

INSPECTION PROCEDURE

NOTICE:
  1. Inspect the fuses for circuits related to this system before performing the following inspection procedure.
  2. When the sliding roof ECU (sliding roof drive gear assembly) is removed and reinstalled or replaced, it requires initialization (Click here).

1.READ VALUE USING INTELLIGENT TESTER (SLIDING ROOF SWITCH)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power switch on (IG).

  1. Turn the intelligent tester on.

  1. Enter the following menus: Body / Sliding Roof / Data List.

  1. Read the Data List according to the display on the intelligent tester.

    Sliding Roof (Sliding Roof ECU (Sliding Roof Drive Gear Assembly)) 
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Open Switch Failure(Past)
    		Open switch failure signal (Past)/ON or OFF
    		ON: Sliding roof open switch failure signal (Past)
    OFF: No sliding roof open switch failure signal (Past)
    		-
    Close Switch Failure(Past)
    		Close switch failure signal (Past)/ON or OFF
    		ON: Sliding roof close switch failure signal (Past)
    OFF: No sliding roof close switch failure signal (Past)
    		-
    Up Switch Failure(Past)
    		Up switch failure signal (Past)/ON or OFF
    		ON: Sliding roof tilt up switch failure signal (Past)
    OFF: No sliding roof tilt up switch failure signal (Past)
    		-
    Down Switch Failure(Past)
    		Down switch failure signal (Past)/ON or OFF
    		ON: Sliding roof tilt down switch failure signal (Past)
    OFF: No sliding roof tilt down switch failure signal (Past)
    		-
    Open Switch Failure(Current)
    		Open switch failure signal (Current)/ON or OFF
    		ON: Sliding roof open switch failure signal (Current)
    OFF: No sliding roof open switch failure signal (Current)
    		-
    Close Switch Failure(Current)
    		Close switch failure signal (Current)/ON or OFF
    		ON: Sliding roof close switch failure signal (Current)
    OFF: No sliding roof close switch failure signal (Current)
    		-
    Up Switch Failure(Current)
    		Up switch failure signal (Current)/ON or OFF
    		ON: Sliding roof tilt up switch failure signal (Current)
    OFF: No sliding roof tilt up switch failure signal (Current)
    		-
    Down Switch Failure(Current)
    		Down switch failure signal (Current)/ON or OFF
    		ON: Sliding roof tilt down switch failure signal (Current)
    OFF: No sliding roof tilt down switch failure signal (Current)
    		-

    OK:
    "OFF" appears on the intelligent tester screen.



NG
Go to step 2
OK

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

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

  1. Disconnect the T10 sliding roof ECU (sliding roof drive gear assembly) connector.

  1. Disconnect the T6 sliding roof switch (map light assembly) connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    T10-7 (OPN) - Body ground
    		Always
    		10 kΩ or higher
    T10-8 (DOWN) - Body ground
    		Always
    		10 kΩ or higher
    T10-9 (CLS) - Body ground
    		Always
    		10 kΩ or higher
    T10-10 (UP) - Body ground
    		Always
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.INSPECT SLIDING ROOF SWITCH (MAP LIGHT ASSEMBLY)


    B260665E01

  1. Remove the sliding roof switch (map light assembly) (Click here).

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    25 (DOWN) - 3 (GND3)
    		TILT DOWN switch is pressed
    		Below 1 Ω
    25 (DOWN) - 3 (GND3)
    		TILT DOWN switch is not pressed
    		10 kΩ or higher
    24 (UP) - 3 (GND3)
    		TILT UP switch is pressed
    		Below 1 Ω
    24 (UP) - 3 (GND3)
    		TILT UP switch is not pressed
    		10 kΩ or higher
    28 (CLS) - 3 (GND3)
    		SLIDE CLOSE switch is pressed
    		Below 1 Ω
    28 (CLS) - 3 (GND3)
    		SLIDE CLOSE switch is not pressed
    		10 kΩ or higher
    27 (OPN) - 3 (GND3)
    		SLIDE OPEN switch is pressed
    		Below 1 Ω
    27 (OPN) - 3 (GND3)
    		SLIDE OPEN switch is not pressed
    		10 kΩ or higher

    Text in Illustration 
    *a
    		Component without harness connected
    (Sliding Roof Switch (Map Light Assembly))



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

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