U0140

Description

Retractable hard top control unit performs local communication with BCM, power window main switch and power window sub-switch using communication line.


DTC Logic


DTC DETECTION LOGIC

NOTE:
If two or more DTCs are detected, refer to "DTC Inspection Priority Chart" Related Tests, Information and Procedures, and determine trouble diagnosis order.






DTC CONFIRMATION PROCEDURE


1. PERFORM DTC CONFIRMATION PROCEDURE

1.Start engine.
2.Operate retractable hard top to fully open and fully close.
3.Check "Self Diagnostic Results" mode of "RETRACTABLE HARD TOP" using CONSULT.
Is the DTC detected?
YES- Perform diagnosis procedure. Refer to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK COMMUNICATION LINE

1.Turn ignition switch OFF.
2.Disconnect retractable hard top control unit and BCM connector.
3.Check continuity between retractable hard top control unit harness connector and BCM harness connector.





4.Check continuity between retractable hard top control unit harness connector and ground.





Is the inspection result normal?
YES- Replace BCM. Refer to "Removal and Installation" Removal and Installation.
NO- Repair or replace harness.