Principles of Operation

Roof Opening Panel

Principles of Operation

Roof Opening Panel

The roof opening panel assembly uses an integrated motor and module to operate the roof opening panel. The roof opening panel motor and module are installed new as an assembly. The roof opening panel is an electronically operated glass panel that can be opened or closed by the roof opening panel switch. Actuating the switch in either a forward or rearward motion supplies a ground to the roof opening panel motor/module. The roof opening panel has 4 modes of operation, manual mode, one-touch open, one-touch close and one-touch vent. These functions are controlled by the roof opening panel motor/module. The one-touch open/close features are activated when the roof opening panel control switch is pressed to the second detent. The roof opening panel will only function when the accessory delay relay is active. For information about the accessory delay relay, refer to Windows and Glass.

The roof opening panel motor receives a ground signal from the transmission floor shifter assembly whenever the gear selector is in the PARK position. When the transmission is not in PARK, closing force is incrementally increased to close the glass panel to prevent false reversals while driving at road speed.

A new roof opening panel motor will only open and must be initialized. The roof opening panel motor initialization procedure must be done when repairs are carried out on any part of the roof opening panel system, including: any time the roof opening panel motor has been removed from the roof opening panel assembly, a new roof opening panel motor has been installed or when a new roof opening panel assembly has been installed.