Operation

OPERATION

The sunroof can be operated with the ignition switch in position I or II. The sunroof can also be operated for up to 45 seconds after the ignition is switched off provided the driver's door is not opened. When the driver's door is opened, a further 45 second period commences. During the 45 second period the one touch function is inoperative.

If a failure of the sunroof motor occurs for whatever reason, the sunroof can be closed manually. Removal of the interior courtesy lamp allows the fitment of a special key into a slot in the motor drive. The sunroof can then be manually driven to the closed position.

The motor contains a microswitch and a Hall effect sensor. Two gears, driven by the motor at one end of the pinion drive spindle, trip the microswitch every thirteen revolutions of the spindle. When the microswitch is tripped, an open circuit signal is sensed by the Body electrical Control Module (BeCM). The signal from the microswitch, combined with signals received from the Hall effect sensor, are used by the BeCM to calculate the exact position of the sunroof. The Hall effect sensor is also responsible for the operation of the anti-trap function.

Tilt Operation

With the sunroof panel closed, pushing the lower part of the rocker switch operates the sunroof motor to 'tilt' the rear of the sunroof upwards. The motor operates for as long as the switch is operated until the glass is tilted to its full extent. If the switch is released before the full tilt position is reached, the sunroof panel stops at the chosen position.

When the tilt function is requested, the cables pull the guide forward, forcing the peg on each lever to move in the slot which raises the sunroof panel to the tilt position.

With the sunroof panel in the tilted position, pushing the upper part of the rocker switch, operates the sunroof motor to lower the sunroof panel. The motor operates to lower the panel for as long as the switch is operated until the panel is fully lowered. If the switch is released before the fully lowered position is reached, the sunroof panel stops at the chosen position.

Open (slide) Operation

With the sunroof panel closed, pushing the upper part of the rocker switch operates the sunroof motor to lower the sunroof panel and retract it backwards. If the switch is held, the motor operates until the switch is released or the panel reaches its fully open position. If the switch is pushed momentarily (less than 0.5 seconds), the panel will retract automatically to a half open position. A second short push on the switch will automatically retract the panel fully. When the panel retracts, a wind deflector automatically raises at the front of the sunroof aperture which serves to reduce wind noise.

When the open function is requested, the cables pull the guide in a rearward direction, forcing the peg on the lever to move in the slot which lowers the rear of the sunroof panel below the roof. As the panel begins to move, the forward panel attachments slide down a ramp in the guide, lowering the forward end of the panel below the roof.

With the sunroof panel half or fully open, pushing the lower part of the switch operates the motor to close the sunroof panel. If the switch is held, the panel closes until the switch is released or the panel reaches its fully closed position. If the switch is pushed momentarily (less than 0.5 seconds), the panel will close automatically until it reaches the half open position. A second short push on the switch will automatically close the panel fully.

The sunroof has an 'anti-trap' function which prevents the sunroof panel from closing if an obstruction is sensed. When an obstruction is sensed, the motor will automatically retract the panel to the half or fully open position. A message 'SUNROOF BLOCKED' is displayed on the message centre in the instrument pack. When the obstruction is removed, the panel can be closed by the normal method.

Battery Disconnection

If the battery has been disconnected, the one touch and anti-trap function will become inoperative. These functions can be reset by fully opening and closing, then fully tilting and closing the sunroof panel in one continuous operation. An audible warning will sound and 'SUNROOF NOT SET' will be displayed on the message centre in the instrument pack when the sunroof is being operated.

When the above procedure has been successfully completed, an audible warning will sound and 'SUNROOF SET' will be displayed on the message centre.