B2344

SLIDING ROOF / CONVERTIBLE: SLIDING ROOF SYSTEM: B2341, B2344: Sensor (Motor) Failure
B2341 - Sensor (Motor) Failure
B2344 - Position Failure

DESCRIPTION

When the sliding roof ECU (sliding roof drive gear assembly) detects a motor malfunction and the sliding roof operation is stopped, DTC B2341 is output.

When the sliding roof ECU (sliding roof drive gear assembly) detects a gear position malfunction and the sliding roof operation is stopped, DTC B2344 is output.





WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
* When the sliding roof ECU (sliding roof drive gear assembly) is removed and reinstalled or replaced, it requires initialization Programming and Relearning.
* The sliding roof system uses the CAN and LIN communication systems. First, confirm that there are no malfunctions in the CAN and LIN communication systems. Refer to the How to Proceed with Troubleshooting procedure How To Proceed With Troubleshooting.

PROCEDURE

1. CHECK SLIDING ROOF OPERATION

(a) Check the sliding roof auto operation Operation Check.

OK:

Auto operation operates normally.

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

2. CHECK DTC OUTPUT

(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

(b) Recheck for DTCs.

OK:

DTC B2341 or B2344 is not output.

NG -- REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) Removal

OK -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting

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

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

OK:

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

NG -- CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU - SLIDING ROOF SWITCH AND BODY GROUND)
OK -- Continue to next step.

4. CHECK DTC OUTPUT

(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

(b) Recheck for DTCs.

OK:

DTC B2341 or B2344 is not output.

NG -- REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) Removal

OK -- END (PROBLEM DUE TO INITIALIZATION FAILURE)

5. CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU - SLIDING ROOF SWITCH AND BODY GROUND)

(a) Disconnect the T6 sliding roof switch (map light assembly) connector.

(b) Disconnect the T10 sliding roof ECU (sliding roof drive gear assembly) connector.

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

Standard Resistance:





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

6. INSPECT SLIDING ROOF SWITCH (MAP LIGHT ASSEMBLY)

(a) Remove the sliding roof switch (map light assembly) Removal.





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

Standard Resistance:





Text in Illustration





NG -- REPLACE SLIDING ROOF SWITCH (MAP LIGHT ASSEMBLY) Removal

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