DTC B2342: Switch Failure [12/2019 - ]: Procedure

1. Read the Data List according to the display on the GTS.

   Body Electrical > Sliding Roof > Data List 

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

   Body Electrical > Sliding Roof > Data List 

   Tester Display
   Open Switch Failure (Past)
   Close Switch Failure (Past)
   Up Switch Failure (Past)
   Down Switch Failure (Past)
   Open Switch Failure (Current)
   Close Switch Failure (Current)
   Up Switch Failure (Current)
   Down Switch Failure (Current)

   OK

   OFF is displayed for each Data List item.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY). Refer to  REMOVAL [12/2019 - 10/2022]  , or refer to  REMOVAL [10/2022 - 11/2023]  , or refer to  REMOVAL [11/2023 - ] 

Result: 

NG 

See step  2

1. Disconnect the R2 sliding roof ECU (sliding roof drive gear assembly) connector.
2. Disconnect the R11 sliding roof switch (map light assembly) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   R2-10 (OPN) or R11-20 (OPN) - Body ground	Always	10 kΩ or higher
   R2-8 (CLS) or R11-19 (CLS) - Body ground	Always	10 kΩ or higher
   R2-5 (OPN) or R11-17 (UP) - Body ground	Always	10 kΩ or higher
   R2-9 (CLS) or R11-18 (DOWN) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  3

Refer to INSPECTION [12/2019 - ]

Result

Result: 

OK 

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY). Refer to  REMOVAL [12/2019 - 10/2022]  , or refer to  REMOVAL [10/2022 - 11/2023]  , or refer to  REMOVAL [11/2023 - ] 

Result: 

NG 

REPLACE SLIDING ROOF SWITCH (MAP LIGHT ASSEMBLY). Refer to  REMOVAL [12/2019 - ]