B2344

SLIDING ROOF: SLIDING ROOF SYSTEM: B2341,B2344: Sensor (Motor) Failure
B2341 - Sensor (Motor) Failure
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, DOWN, CLOSE and UP switches On-Vehicle Inspection.

OK:

Auto operation operates normally with OPEN, DOWN, CLOSE and UP switches.

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

2. DELETE DTC

(a) Delete the DTCs.

NEXT -- END

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

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

OK:

Sliding roof drive gear sub-assembly can be initialized.

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

4. CHECK SLIDING ROOF FUNCTION

(a) Check the auto operation with the OPEN, DOWN, CLOSE and UP switches On-Vehicle Inspection.

OK:

Auto operation operates normally with OPEN, DOWN, CLOSE and UP switches.

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

5. DELETE DTC

(a) Delete the DTCs.

NEXT -- END

6. CHECK WIRE HARNESS (SLIDING ROOF CONTROL ECU - ROOF CONSOLE BOX ASSEMBLY)

(a) Disconnect the Q7 and Q2 connectors.





(b) 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.

7. INSPECT ROOF CONSOLE BOX ASSEMBLY (SLIDING ROOF CONTROL SWITCH)

(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 CONTROL SWITCH)

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