Power Roof System
The power roof system consists of the following components:
| • | Folding top switch |
| • | Folding top pump |
| • | Power roof system circuit breaker -- WINDOWS CKT BRKR 30 A |
| • | Ground G201 |
| • | Ground G110 with ETA |
| • | Folding top relay with ETA |
| • | Park neutral position switch with automatic transmission |
Power Roof System Controls
The power roof system is controlled by the folding top switch.
Power Roof Operation
Important:
• Voltage is applied to the folding top through the WINDOWS CKT BRKR
30 A. The WINDOWS CKT BRKR 30 A is controlled by the Body Control
Module (BCM). • For a complete understanding of the Retained Accessory Power operation,
refer to
Retained Accessory Power (RAP) Description and Operation
in Retained Accessory Power. • Do not attempt to operate the power folding top unless the vehicle
is stationary. • Release all of the latches before lowering the power folding top. • Lower the side windows before operating the power folding top. • Re-engage all of the latches after raising the power folding top.
Battery voltage is applied from WINDOWS CKT BRKR 30 A through the ignition 3 voltage circuit to the folding top switch and the folding top relay, vehicles with ETA only, when the ignition switch is in the RUN position, the ACCY position or when the vehicle is in the Retained Accessory Power (RAP) mode.
The folding top pump is driven by a reversible permanent-magnet motor. The motor is controlled by the folding top switch. Opening the power folding top requires the folding top switch to be pressed and held in the open position. Ignition 3 voltage is provided to the folding top pump through the convertible top motor down circuit and the convertible top motor up circuit will remain at ground potential. This action will drive the power folding top to open. When the folding top switch is released, the switch contacts will return to ground potential.
Closing the power folding roof requires the folding top switch to be pressed and held in the close position, ignition 3 voltage is provided to the folding top pump through the convertible top motor up circuit and the convertible top motor down circuit remains at ground potential. This action will drive the power folding top to close.
With ETA
A vehicle equipped with ETA will have a folding top relay, that will allow the folding top to operate only when the vehicle is in PARK or NEUTRAL. The folding top relay coil supply voltage is hot with the vehicle in ACCY, RUN or during RAP through the ignition 3 voltage circuit. A ground signal is provided to the folding top relay switch input. A path from ground G110 is provided to the park neutral position switch. When the vehicle is in PARK or NEUTRAL a ground path is completed from G110, through the park neutral position switch through the neutral safety switch circuit, through the A/T shift lock solenoid supply voltage circuit to the folding top relay control circuit, energizing the folding top relay. The folding top relay switch will close and apply the ground circuit to the folding top switch to supply both the convertible top motor up and down circuits.
