DTC B2341: Sensor (Motor) Failure; DTC B2344: Position Failure [10/2015 - ]: Procedure

1. Check the sliding roof auto operation.

   Refer to OPERATION CHECK [12/2012 - ]

Result: 

Auto operation does not operate normally 

See step  3

Result: 

Auto operation operates normally 

See step  2

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [12/2012 - ]

   Body Electrical > Sliding Roof > Clear DTCs 

2. Check for DTCs.

   Refer to DTC CHECK / CLEAR [12/2012 - ]

   Body Electrical > Sliding Roof > Trouble Codes 

Result: 

DTC B2341 or B2344 is not output 

USE SIMULATION METHOD TO CHECK:  HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - 08/2016]  ,  HOW TO PROCEED WITH TROUBLESHOOTING [08/2016 - 08/2017]  ,  HOW TO PROCEED WITH TROUBLESHOOTING [08/2017 - ] 

Result: 

DTC B2341 or B2344 is output 

REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU):  DISASSEMBLY [12/2012 - ] 

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

   Refer to INITIALIZATION [12/2012 - ]

   OK

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

Result: 

NG 

See step  5

Result: 

OK 

See step  4

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [12/2012 - ]

   Body Electrical > Sliding Roof > Clear DTCs 

2. Check for DTCs.

   Refer to DTC CHECK / CLEAR [12/2012 - ]

   Body Electrical > Sliding Roof > Trouble Codes 

Result: 

DTC B2341 or B2344 is not output 

END (PROBLEM DUE TO INITIALIZATION FAILURE) 

Result: 

DTC B2341 or B2344 is output 

REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU):  DISASSEMBLY [12/2012 - ] 

1. Disconnect the Q16 map light assembly (sliding roof control switch) connector.
2. Disconnect the Q8 sliding roof drive gear sub-assembly (sliding roof ECU) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   Q8-5 (CLS) - Q16-8 (CLS)	Always	Below 1 Ω
   Q8-5 (CLS) - Body ground	Always	10 kΩ or higher
   Q8-7 (OPN) - Q16-7 (OPN)	Always	Below 1 Ω
   Q8-7 (OPN) - Body ground	Always	10 kΩ or higher
   Q8-6 (DWN) - Q16-17 (DOWN)	Always	Below 1 Ω
   Q8-6 (DWN) - Body ground	Always	10 kΩ or higher
   Q8-4 (UP) - Q16-16 (UP)	Always	Below 1 Ω
   Q8-4 (UP) - Body ground	Always	10 kΩ or higher
   Q16-20 (GND) - Body ground	Always	Below 1 Ω
   Q8-12 (E) - Body ground	Always	Below 1 Ω

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  6

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Refer to REMOVAL [10/2015 - ]

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

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   16 (UP) - 20 (GND)	UP switch is pressed	Below 1 Ω
   16 (UP) - 20 (GND)	UP switch is not pressed	10 kΩ or higher
   17 (DOWN) - 20 (GND)	DOWN switch is pressed	Below 1 Ω
   17 (DOWN) - 20 (GND)	DOWN switch is not pressed	10 kΩ or higher
   7 (OPN) - 20 (GND)	OPEN switch is pressed	Below 1 Ω
   7 (OPN) - 20 (GND)	OPEN switch is not pressed	10 kΩ or higher
   8 (CLS) - 20 (GND)	CLOSE switch is pressed	Below 1 Ω
   8 (CLS) - 20 (GND)	CLOSE switch is not pressed	10 kΩ or higher

Result: 

OK 

REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU):  DISASSEMBLY [12/2012 - ] 

Result: 

NG 

REPLACE MAP LIGHT ASSEMBLY (SLIDING ROOF CONTROL SWITCH):  REMOVAL [10/2015 - ]