B2341

SLIDING ROOF: SLIDING ROOF SYSTEM: B2341: 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.
NOTE: When the sliding roof drive gear sub-assembly is reinstalled or replaced, the sliding roof drive gear sub-assembly must be initialized.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK SLIDING ROOF FUNCTION
(a) Check the AUTO operation with the OPEN and UP switches.
OK:
AUTO operation operates normally with the 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.
(b) Recheck for DTCs.
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.
OK:
AUTO operation operates normally with the 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.
(b) Recheck for DTCs.
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)