System Description

SYSTEM

RETRACTABLE HARD TOP SYSTEM : System Description


DESCRIPTION

Retractable hard top system is a system that opens or closes roof using hydraulic pressure generated by each electric system part and oil pump when operating roof open/close switch.
Retractable hard top control unit relates to the following functions.






PRECONDITIONS FOR RETRACTABLE HARD TOP

Retractable hard top system opens or closes the roof when roof open/close switch is operated to OPEN or
CLOSE, or door request switch (LH/RH) is pressed and held, while all of the following conditions are satisfied.
(Operation by door request switch allows opening only.)






OPERATION WITH DOOR REQUEST SWITCH

In addition to roof open/close switch, door request switch (LH/RH) can perform an open operation. When BCM
detects that door request switch is operated, BCM requests an open operation of retractable hard top to retractable hard top control unit via local communication. After this, the operation is the same as that of an open operation by roof open/close switch.

POWER WINDOW INTERLOCK OPERATION

If power window is not fully open during when open and close operations of retractable hard top are performed, retractable hard top control unit opens front power window and rear power window. Front power window is operated via local communication between power window main switch/sub-switch.
NOTE:
For power window system operation by power window main/sub-switch, refer to "System Description" System Description.

SYSTEM PROTECT FUNCTION

Retractable hard top control unit restricts or inhibits the operation due to safety and system protection reasons, when detecting an operation and activation that are not normal.





Thermo Protect Function
Retractable hard top system calculates hydraulic pump temperature according to system operating time, prevents hydraulic system temperature from increasing excessively, and protects the system.
Retractable hard top control unit controls of the following items.











SEQUENCE OF RETRACTABLE HARD TOP SYSTEM

There are 42 states in retractable hard top, regardless of open and close operations. Retractable hard top system performs open and close operations using a combination of these 42 states.
NOTE:
For changing order of roof state, refer to ORDER OF ROOF STATE CHANGING.
Parts state (CONSULT display) according to each roof state of retractable hard top system is shown in the following table.
NOTE:
For the operation details of hydraulic system, roof latch, parcel shelf, and flipper door, refer to the following table.





Open Operation
When roof open/close switch is operated to OPEN, retractable hard top system checks that operation conditions are satisfied and performs an open operation. Parts state (CONSULT display) is shown in the following table.
-: It is not related to the operation










Close Operation
When roof open/close switch is operated to CLOSE, retractable hard top system checks that operation conditions are satisfied and performs a close operation, as shown in the following table. Parts state (CONSULT display) is shown in the following table.
-: It is not related to the operation











ORDER OF ROOF STATE CHANGING

Roof state change in normal operation is performed according to the patterns as shown in the following table.
Open Operation





Close Operation