Power Top - Description

DESCRIPTION





The power top system allows the convertible top to be raised and lowered electrically by actuating a switch on the left side of the instrument panel. The power top system receives battery feed through a fuse in the Totally Integrated Power Module (TIPM).

The operation of the power top is controlled by the Power Top Control Module (PTCM). The PTCM also controls the "top down/4 window down feature when the power top switch is pressed to the second detent position.

The main components of the power top system are:

- The power top framework and bows (1)
- The tonneau cover, screw drive assemblies and control motor/cable assemblies (2)
- The decklid reversing deckbar assembly (3)
- The motor/hydraulic pump assembly (4)
- The reversing deckbar hydraulic cylinder assembly (5)
- The decklid forward latch assemblies (6)
- The power top pivot bracket
- The header latching system and micro switches (7)
- The front door modules
- The rear window regulator modules

The power top motor is part of the motor/hydraulic pump assembly and cannot be serviced separately. If the motor is inoperative the complete assembly must be replaced, Hydraulic Motor And Pump Assembly - Removal.





There are a number of micro switches hardwired to the PTCM. The PTCM uses the information provided to verify that operations are complete before allowing the next stage of the raising or folding operation. The PTCM allows raising or lowering only when the car is stationary, the trunk lid is closed and latched, and the luggage protector is in place, as indicated by the micro-switch sensors. If the PTCM does not receive the appropriate input from any of these switches the power top will not operate properly. There are a total of nine micro switches for the convertible soft top and eleven for the retractable hard top.

The following micro switches are available on this vehicle:

- The header latched limit switch (1)
- The header unlatched limit switch (2)
- The roof sense switch (3)
- The panel latched switch (4) (retractable hard top only)
- The panel unlatched switch (5) (retractable hard top only)
- The tonneau retracted limit switch (6)
- The tonneau extended limit switch (7)
- The deck bar cylinder position switch (8)
- The decklid latch limit switch (9)
- The folding top stack cylinder position switch (10)
- The luggage protector position switch (located on the right trunk trim panel)





The power top system utilizes a power extending/retracting tonneau cover assembly located on the underside of the decklid. The tonneau cover extends or retracts when the decklid is in the raised position during a power top open/close event. The trunk lid pivots at the rear of the vehicle near the rear bumper and swings open at the front when raising or lowering the top, but still opens from the rear in the conventional fashion for stowing luggage. A hydraulically operated reversing deck bar mechanism allows the trunk lid to pivot at the rear for reversing motion and still allow for conventional operation of the trunk lid.

A hard tonneau cover, attached to the trunk lid, extends forward when the top is stowed, and retracts when the top is raised. The tonneau moves with the deck lid. When stowing the top, the trunk lid rotates back and an electric motor extends the tonneau. The trunk lid returns to its normal position with the tonneau cover extended in front of it, neatly covering the top stowage area so that nothing of the mechanism shows when stowing is complete. Spring-loaded flipper doors close off notches in the quarter trim panels, which provide clearance for the linkage when the top is up. When the top is raised, the tonneau retracts under the trunk lid before the lid closes.

The following are the components of the tonneau cover assembly:

- The tonneau control motor (1)
- The left and right cable assemblies and routing clips (2)
- The left and right screw drive assemblies (3)
- The tonneau cover (4)
- The mounting hardware (5 AND 6)