DTC B2341: Sensor (Motor) Failure; DTC B2344: Position Failure: Procedure

1. Check the sliding roof auto operation. Refer to OPERATION CHECK .

   OK

   Auto operation operates normally.

NG → See step   3 

OK: Go to next step 

1. Clear the DTCs. Refer to DTC CHECK / CLEAR .
2. Recheck for DTCs.

   OK

   DTC B2341 or B2344 is not output.

NG → See step   7 

OK → See step   9 

1. Check that the sliding roof ECU (sliding roof drive gear sub-assembly) can be initialized. Refer to INITIALIZATION .

   OK

   Sliding roof ECU (sliding roof drive gear sub-assembly) can be initialized.

NG → See step   5 

OK: Go to next step 

1. Clear the DTCs. Refer to DTC CHECK / CLEAR .
2. Recheck for DTCs.

   OK

   DTC B2341 or B2344 is not output.

NG → See step   7 

OK → END (PROBLEM DUE TO INITIALIZATION FAILURE) 

1. Disconnect the S12 sliding roof switch (roof console box assembly) connector.
2. Disconnect the S4 sliding roof ECU (sliding roof drive gear sub-assembly) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   S4-5 (CLS) - S12-2 (CLS)	Always	Below 1 Ω
   S4-5 (CLS) - Body ground	Always	10 kΩ or higher
   S4-7 (OPN) - S12-3 (OPN)	Always	Below 1 Ω
   S4-7 (OPN) - Body ground	Always	10 kΩ or higher
   S4-6 (DWN) - S12-4 (DOWN)	Always	Below 1 Ω
   S4-6 (DWN) - Body ground	Always	10 kΩ or higher
   S4-4 (UP) - S12-5 (UP)	Always	Below 1 Ω
   S4-4 (UP) - Body ground	Always	10 kΩ or higher
   S12-1 (GND) - Body ground	Always	Below 1 Ω
   S4-12 (E) - Body ground	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Remove the sliding roof switch (roof console box assembly). Refer to REMOVAL .
   Fig 1: Inspecting Sliding Roof Switch (Roof Console Box Assembly)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   5 (UP) - 1 (GND)	UP switch is pressed	Below 1 Ω
   5 (UP) - 1 (GND)	UP switch is not pressed	10 kΩ or higher
   4 (DOWN) - 1 (GND)	DOWN switch is pressed	Below 1 Ω
   4 (DOWN) - 1 (GND)	DOWN switch is not pressed	10 kΩ or higher
   3 (OPN) - 1 (GND)	OPEN switch is pressed	Below 1 Ω
   3 (OPN) - 1 (GND)	OPEN switch is not pressed	10 kΩ or higher
   2 (CLS) - 1 (GND)	CLOSE switch is pressed	Below 1 Ω
   2 (CLS) - 1 (GND)	CLOSE switch is not pressed	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Sliding Roof Switch (Roof Console Box Assembly))

NG → See step   8 

OK → See step   7