B175C

Description

Power supply (roof) voltage for soft top control unit is monitored. Soft top system operation is inhibited when voltage outside the specified value is detected.


DTC Logic


DTC DETECTION LOGIC

NOTE:
If two or more DTCs are detected, Related Tests, Information And Procedures, and determine trouble diagnosis order.






DTC CONFIRMATION PROCEDURE


1. PERFORM DTC CONFIRMATION PROCEDURE

1.Start engine.
2.Operate soft top to fully open and close.
3.Select "Self Diagnostic Result" mode of "CONVERTIBLE ROOF" using CONSULT.
4.Check DTC.
Is DTC detected?
YES- Go to B1758.
NO- INSPECTION END


Diagnosis Procedure


1. CHECK CHARGING SYSTEM

Check charging system. Work Flow.
Is the inspection result normal?
YES- GO TO 2.
NO- Repair or replace malfunction parts.

2. CHECK POWER SUPPLY AND GROUND CIRCUIT

Check power supply and ground circuit for soft top control unit. Power Supply And Ground Circuit.
Is the inspection result normal?
YES- Check intermittent incident. Intermittent Incident Regular Grade.
NO- Repair or replace malfunction parts.