B175D

Description

Power supply (roof) voltage for retractable hard top control unit is monitored. Retractable hard 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, 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 Result" of "RETRACTABLE HARD TOP" using CONSULT.
Is DTC detected?
YES- Go to "Diagnosis Procedure" B1758.
NO- INSPECTION END


Diagnosis Procedure


1. CHECK CHARGING SYSTEM

Check charging system. Refer to "Work Flow (With EXP-800 NI or GR8-1200 NI)" With EXP-800 NI or GR8-1200 NI
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 retractable hard top control unit. Refer to "Diagnosis Procedure" Diagnosis Procedure.
Is the inspection result normal?
YES- Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident.
NO- Repair or replace malfunction parts.