B2344

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


DESCRIPTION

When the sliding roof drive gear (sliding roof ECU) detects the motor's malfunction, and the sliding roof operation is stopped, DTC B2341 is output. When the sliding roof drive gear (sliding roof ECU) detects the gear's malfunction, 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 SLIDE OPEN and TILT UP switch On-Vehicle Inspection.

OK:

Auto operation operates normally with SLIDE OPEN and TILT UP switch.

NG -- INITIALIZE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU)
OK -- Continue to next step.

2. DELETE DTC

(a) Delete the DTC Reading and Clearing Diagnostic Trouble Codes.

NEXT -- END

3. INITIALIZE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU)

(a) Check that the sliding roof drive gear can be initialized Programming and Relearning.

OK:

Sliding roof drive gear can be initialized.

NG -- CHECK WIRE HARNESS (SLIDING ROOF DRIVE GEAR - OVERHEAD JUNCTION BLOCK)
OK -- Continue to next step.

4. CHECK SLIDING ROOF FUNCTION

(a) Check the auto operation with the SLIDE OPEN and TILT UP switch On-Vehicle Inspection.

OK:

Auto operation operates normally with SLIDE OPEN and TILT UP switch.

NG -- REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU)
OK -- Continue to next step.

5. DELETE DTC

(a) Delete the DTC Reading and Clearing Diagnostic Trouble Codes.

NEXT -- END

6. CHECK WIRE HARNESS (SLIDING ROOF DRIVE GEAR - OVERHEAD JUNCTION BLOCK)

(a) Disconnect the P6 ECU connector.





(b) Disconnect the P5 junction block connector.

(c) Measure the resistance of the wire harness side connectors.

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.

7. INSPECT OVERHEAD JUNCTION BLOCK (SLIDING ROOF CONTROL SWITCH)

(a) Remove the overhead junction block.





(b) Measure the resistance of the switch.

Standard resistance:





NG -- REPLACE OVERHEAD JUNCTION BLOCK (SLIDING ROOF CONTROL SWITCH)

OK -- REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU)