DTC B2343: Position Initialization Incomplete: Procedure

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

   OK

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

NG → See step   4 

OK: Go to next step 

1. Check the AUTO operation with the OPEN and UP switches. Refer to ON-VEHICLE INSPECTION .

   OK

   AUTO operation operates normally with the OPEN and UP switches.

NG → See step   6 

OK: Go to next step 

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

   HINT: 

   If DTCs are detected frequently, replace the ECU.

   OK

   DTC is not output.

NG → See step   6 

OK → END 

1. Remove the roof console box assembly.
   Fig 1: Checking Roof Console Box Assembly (Sliding Roof Switch 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 Position	Specified Condition
   Q1-3 (CLS) - Q1-2 (GND)	CLOSE	Below 100 Ω
   Q1-4 (OPN) - Q1-2 (GND)	OPEN	Below 100 Ω
   Q1-5 (DOWN) - Q1-2 (GND)	DOWN	Below 100 Ω
   Q1-6 (UP) - Q1-2 (GND)	UP	Below 100 Ω
   Q1-3 (CLS) - Q1-2 (GND)	OPEN	1 kΩ or higher
   Q1-4 (OPN) - Q1-2 (GND)	CLOSE	1 kΩ or higher
   Q1-5 (DOWN) - Q1-2 (GND)	UP	1 kΩ or higher
   Q1-6 (UP) - Q1-2 (GND)	DOWN	1 kΩ or higher

NG → See step   7 

OK: Go to next step 

1. Disconnect the Q12 and Q1 connectors.
   Fig 2: Checking Wire Harness (Sliding Roof Control ECU - 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	Condition	Specified Condition
   Q12-2 (E) - Q1-2 (GND)	Always	Below 1 Ω
   Q12-7 (OPN) - Q1-4 (OPN)	Always	Below 1 Ω
   Q12-8 (DWN) - Q1-5 (DOWN)	Always	Below 1 Ω
   Q12-9 (CLS) - Q1-3 (CLS)	Always	Below 1 Ω
   Q12-10 (UP) - Q1-6 (UP)	Always	Below 1 Ω
   Q1-3 (CLS) - Body ground	Always	10 kΩ or higher
   Q1-4 (OPN) - Body ground	Always	10 kΩ or higher
   Q1-2 (GND) - Body ground	Always	Below 1 Ω
   Q1-5 (DOWN) - Body ground	Always	10 kΩ or higher
   Q1-6 (UP) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   6