Smart Glass

When a door is opened, the respective module will receive a signal from the door ajar switch or the window drop switch. The window drop switch is directly controlled by both the interior and the exterior door handle switches. The drop switch is part of the door latch. This switch is faster than the door ajar switch to signal an open door operation. At that point the module will drop the front door glass 10mm. However, if the window drop switch should fail, the door ajar sense would also drop the window 10mm and the module would set a trouble code. If the module receives a door ajar switch open (door closed) it would raise the window 10mm. The module knows the position of the window by counting the motor rotation through the hall effect sensor in the module. If a door window is raised while that door is open, the module will raise the glass up, but when the door is closed it will raise the glass 10mm further up.

When the convertible top down switch is pressed to the first detent, the input is received by the window regulator modules which will lower the door windows approximately 40mm, lower the rear window glass for approximately 0.52 seconds (approx. 55mm), and after a 200ms delay, energize the power top down relay to lower the convertible top.

The window regulator module monitors ambient temperature from the engine control module. At cold temperatures the stall time for the rear window motors is increased because of the possibility of ice or frost.