B1738

B1738 HYDRAULIC STATE 8





Description
There are 22 states in hydraulic system. Hydraulic system is controlled using combination of these 22 states and, at the same time, open and close operations of retractable hard top system are performed interlocking with other retractable hard top system components. For the detail, refer to System Diagram System Description, "HYDRAULIC SYSTEM CONTROL FUNCTION : System Description".




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 fully close.
3. Check "Self Diagnostic Result" with CONSULT-III.
Is DTC detected?
YES - Go to B1738.
NO - INSPECTION END




Diagnosis Procedure
1.CHECK RETRACTABLE HARD TOP SYSTEM COMPONENT PARTS
Check retractable hard top component parts as bellow deformation, looseness, rattle, interference with other parts, and pinched foreign materials .
- Hydraulic system: Refer to Exploded View.
- Roof: Refer to Exploded View.
- Roof latch: Refer to Exploded View.
Is the inspection result normal?
YES - GO TO 2.
NO - Repair or replace malfunctioning part.
2.CHECK ROOF LATCH MOTOR
Check roof latch motor. Refer to Roof Latch Motor.
Is the inspection result normal?
YES - GO TO 3.
NO - Repair or replace malfunctioning part.
3.CHECK HYDRAULIC PUMP POWER SUPPLY RELAY
Check hydraulic pump power supply relay. Refer to Hydraulic Pump Motor Power Supply Relay.
Is the inspection result normal?
YES - Check intermittent incident. Refer to Intermittent Incident.
NO - Replace hydraulic unit. Refer to Removal and Installation.