B175C

B175C POWER SOURCE (ROOF)





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, Retractable Hard Top Control Unit, 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 close.
3. Check "Self-Diagnostic Result" of "RETRACTABLE HARD TOP" using CONSULT-III.
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 retractable hard top control unit. Power Supply And Ground Circuit.
Is the inspection result normal?
YES - Check intermittent incident. Intermittent Incident.
NO - Repair or replace malfunction parts.