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. Check 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 assembly) can be initialized. Refer to INITIALIZATION .

   OK

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

NG → See step   5 

OK: Go to next step 

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

   OK

   DTC B2341 or B2344 is not output.

NG → See step   7 

OK → END (PROBLEM DUE TO INITIALIZATION FAILURE) 

1. Disconnect the N6 sliding roof switch (roof console box assembly) connector.
2. Disconnect the N4 sliding roof ECU (sliding roof drive gear assembly) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   N4-5 (CLS) - N6-2 (CLS)	Always	Below 1 Ω
   N4-5 (CLS) - Body ground	Always	10 kΩ or higher
   N4-7 (OPN) - N6-3 (OPN)	Always	Below 1 Ω
   N4-7 (OPN) - Body ground	Always	10 kΩ or higher
   N4-6 (DWN) - N6-4 (DOWN)	Always	Below 1 Ω
   N4-6 (DWN) - Body ground	Always	10 kΩ or higher
   N4-4 (UP) - N6-5 (UP)	Always	Below 1 Ω
   N4-4 (UP) - Body ground	Always	10 kΩ or higher
   N6-1 (GND) - Body ground	Always	Below 1 Ω
   N4-12 (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: Measuring Resistance Of Sliding Roof Switch (Roof Console Box Assembly) Connector

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

   Standard Resistance

   Tester Connection	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