Midgate Components
The midgate consists of the following components:
| • | Midgate control module--Integrated with the window motor is a non class 2 device that controls the operation of the midgate window, latches and defogger. |
| • | Body control module--Receives midgate ajar signal from the midgate control module and signals the driver information center (DIC) with the ajar status. |
| • | Driver door module (DDM)--Receives a switched 12-volt signal from the global up and down window switches and signals the midgate control module with their status. |
| • | Global window switches--Part of the memory switch and sends a 12-volt signal to the DDM for global window operation. |
| • | Midgate window switch--On the instrument panel and provides a switched 12-volt signal to the midgate control module for window operation. |
| • | Midgate latch release switches--On the left and right side of the midgate and provides a switched ground signal to the midgate control module for control of the midgate latches. |
| • | Midgate window regulator--Controls the window operation of the midgate. |
| • | Left and right midgate latches--Receive a constant ground source and a switched 12 volts from the midgate control module to release the midgate. |
| • | Left and right midgate ajar switches--Receive a constant ground source, are wired in series, and signal the midgate control module with midgate ajar status. |
| • | Midgate 30-amp circuit breaker--Constant 12-volt battery source |
| • | Accy 10-amp fuse--Switched ignition 12-volt source |
Midgate Latch Control
Before the midgate latches can be enabled, the midgate window must be in the full down position. The midgate latches are controlled by activating either the left or right midgate latch release switches.
Midgate Window Control
The midgate window is controlled by the following:
| • | Midgate window switch up or down activation--The window will travel up or down in express mode. |
| • | Global window switch up or down activation--The window will travel up or down in express mode. |
Midgate Latch Operation
When the midgate window is in the full down position and the midgate latch release switch is activated, ground is supplied to the midgate control module. The midgate control module will then provide 12 volts to the midgate latches and release the
midgate.
Midgate Window Operation
The midgate control module monitors 2 hall sensors located within the motor assembly to determine the window position and motor speed. The control module uses the window position data to set the soft stop locations and when controlling the operation of
the latch release actuators and rear window defogger. Window motor speed is used during express operation and is a necessary input for the anti-pinch feature.
When the midgate window switch is activated to Up, a switched battery voltage is supplied to the midgate control module. If the midgate is not ajar, the midgate control module will supply power and ground to the window motor and the window is driven in
the Up direction.
When the midgate window switch is activated to Down, a switched battery voltage is supplied to the midgate control module. If the midgate is not ajar, the midgate control module will supply power and ground to the window motor and the window is driven
in the down direction.
