B2344

SLIDING ROOF: SLIDING ROOF SYSTEM: B2341,B2344: Sensor (Motor) Failure

DTC B2341 - Sensor (Motor) Failure

DTC B2344 - Position Failure

DESCRIPTION

When the sliding roof drive gear sub-assembly (sliding roof control ECU) detects malfunctions in the motor, and the sliding roof operation is stopped, DTC B2341 is output. When the sliding roof drive gear sub-assembly (sliding roof control ECU) detects malfunctions in the gear, and the sliding roof operation is stopped, DTC B2344 is output.






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK SLIDING ROOF FUNCTION
(a) Check the auto operation with the OPEN and UP switches Component Tests and General Diagnostics.
OK:
Auto operation operates normally with OPEN and UP switches.
NG -- INITIALIZE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF CONTROL ECU)
OK -- Continue to next step.
2. RECHECK FOR DTC
(a) Delete the DTCs Reading and Clearing Diagnostic Trouble Codes.
(b) Recheck for DTCs Reading and Clearing Diagnostic Trouble Codes.
HINT: If DTCs are detected frequently, replace the ECU.

OK:
DTC is not output.
NG -- REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF CONTROL ECU)
OK -- END
3. INITIALIZE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF CONTROL ECU)
(a) Check that the sliding roof drive gear sub-assembly (sliding roof control ECU) can be initialized Programming and Relearning.
OK:
Sliding roof drive gear sub-assembly (sliding roof control ECU) can be initialized.
NG -- INSPECT ROOF CONSOLE BOX ASSEMBLY (SLIDING ROOF SWITCH ASSEMBLY)
OK -- Continue to next step.
4. CHECK SLIDING ROOF FUNCTION
(a) Check the auto operation with the OPEN and UP switches Component Tests and General Diagnostics.
OK:
Auto operation operates normally with OPEN and UP switches.
NG -- REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF CONTROL ECU)
OK -- Continue to next step.
5. RECHECK FOR DTC
(a) Delete the DTCs Reading and Clearing Diagnostic Trouble Codes.
(b) Recheck for DTCs Reading and Clearing Diagnostic Trouble Codes.
HINT: If DTCs are detected frequently, replace the ECU.

OK:
DTC is not output.
NG -- REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF CONTROL ECU)
OK -- END
6. INSPECT ROOF CONSOLE BOX ASSEMBLY (SLIDING ROOF SWITCH ASSEMBLY)




(a) Remove the roof console box assembly.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPLACE ROOF CONSOLE BOX ASSEMBLY (SLIDING ROOF SWITCH ASSEMBLY)
OK -- Continue to next step.
7. CHECK WIRE HARNESS (SLIDING ROOF CONTROL ECU - ROOF CONSOLE BOX ASSEMBLY)




(a) Disconnect the Q12 and Q1 connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF CONTROL ECU)