Principles Of Operation

Roof Opening Panel

Principles of Operation

NOTE: The roof opening panel control switch operates both the power shade and the sliding glass panel. The sliding glass panel opens after the shade panels are open. The shade panels close only after the sliding glass panel is closed.

NOTE: All frame sliding roof panel components are seviceable.

Roof Opening Panel Shade

The roof opening panel assembly uses an integrated motor and module to operate the roof opening panel shades and sliding glass panel. The roof opening panel control switch supplies ground signal(s) to the roof opening sliding glass panel motor to request the selected mode of operation. The roof opening sliding glass panel motor acts as a master controller for the shade motor. For additional information about power shade operation, refer to Roof Opening Panel Roof Opening Panel.

Initialize the roof opening panel motors when one of the following occurs:

- The drive system has been replaced or removed

- Excessive false stalls are encountered

- The shade(s) are removed or replaced

- The shade motor becomes de-initialized (will stutter step open)

- The sliding glass panel is removed

- The sliding glass motor becomes de-initialized (will stutter step open and have no express operation)

NOTE: Any sliding glass opening operation first fully opens the shade panels. Before closing the shade panels, the sliding glass panel must be fully closed.

Roof Opening Sliding Glass Panel

The roof opening panel assembly uses an integrated motor and module to operate the roof opening panel sliding glass. The roof opening sliding glass panel can be opened or closed by activating the roof opening panel control switch. The roof opening sliding glass panel can be vented by activating the TILT control switch. The roof opening panel control switch and TILT switch each provide ground signals to the glass panel motor to request the desired mode of operation. For additional information about the roof opening sliding glass panel operation, refer to Roof Opening Panel Roof Opening Panel.

The shade motor and sliding glass panel motor have 3 thermal operating modes:

- Full function: In their fully functioning state, the motors allow all normal operations of the shades and glass.

- Reduced function: If either motor begins to overheat, it enters a reduced function mode. No express operation is possible and it will allow open or close motion in steps of 50.8 mm (2 in).

- No function: Excessive heating causes no function mode. The motor does not operate in the close direction, but opens in increments of 50.8 mm (2 in). Once the open position is reached, the motor shuts itself down until it is sufficiently cooled.

Global Open - MKX Only

NOTE: The global open feature may be enabled/disabled via scan tool or in some cases modified by the customer following a procedure listed in the Owner's Literature. For a complete list of available programmable parameters, refer to the Module Configuration and Parameter Chart in Information Bus. Module Configuration

The Body Control Module (BCM) sends a signal on the global open circuit to open the power windows and roof opening sliding glass panel based on a signal received from the Remote Keyless Entry (RKE) transmitter. When the roof opening sliding glass panel motor receives the global open request, the shade panels automatically move to the fully OPEN position (if shades are not already fully open), followed by the sliding glass panel moving to the VENT position. The global open feature is inoperative if the accessory delay relay is active.