B2342

SLIDING ROOF: SLIDING ROOF SYSTEM: B2342: Switch Failure
B2342 - Switch Failure

DESCRIPTION

This DTC is output when the sliding roof drive gear (sliding roof ECU) detects that the SLIDE OPEN or TILT UP switch in the overhead junction block is stuck for 30 seconds or more.





WIRING DIAGRAM

Refer to DTC B2341 B2341.

INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM (SLIDE OPEN AND TILT UP SWITCH)

(a) Use the Data List to check if the sliding roof control switch is functioning properly.

Slide Roof





OK:

"Not Fail" appears on tester screen.

NG -- INSPECT OVERHEAD JUNCTION BLOCK (SLIDING ROOF CONTROL SWITCH)
OK -- Continue to next step.

2. 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.

3. DELETE DTC

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

NEXT -- END

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

(a) Remove the overhead junction block.





(b) Measure the resistance of the switch.

Standard resistance:





Result





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

5. REPLACE OVERHEAD JUNCTION BLOCK (SLIDING ROOF CONTROL SWITCH)

(a) Temporarily replace the overhead junction block (sliding roof control switch) with a new or normally functioning one On-Vehicle Inspection.

NEXT -- Continue to next step.

6. DELETE DTC

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

NEXT -- END

7. 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.

8. CHECK SLIDING ROOF FUNCTION

(a) Check the auto operation with the SLIDE OPEN and TILT OPEN 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.

9. DELETE DTC

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

NEXT -- END

10. 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 connector.

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR

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