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, refer to 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" with CONSULT-III.
Is DTC detected?
YES - Go to B1758.
NO - INSPECTION END




Diagnosis Procedure
1.CHECK CHARGING SYSTEM
Check charging system. Refer to 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. Refer to Roof Trunk Closure SUB Control Unit, "RETRACTABLE HARD TOP CONTROL UNIT : Diagnosis Procedure".
Is the inspection result normal?
YES - Check intermittent incident. Refer to Intermittent Incident.
NO - Repair or replace malfunction parts.