Windows: Description and Operation

FEATURES AND OPERATION
The generic electronic module (GEM) controls the opening of the LH driver side power window (window down motion) by activating the one touch down window relay.
- The driver side window has two downward motions, manual mode and auto mode. The down window mode is selected by pressing the LH window regulator control switch (master control). When the GEM detects the master control switch has been depressed for a time greater than 0.4 seconds, it enters the manual mode. If the GEM detects that the master control switch was depressed between 0.04 and 0.4 seconds, it enters the auto mode.

The power window system will operate only if:
- The ignition switch is in the RUN or ACC position (or)
- The delayed accessory feature is in the active mode.

Modes Of Operation
There are two modes of operation for the power window system:

Manual Mode:
When the LH window regulator control switch is pressed to the down position, the window will move down until one of the conditions are met:
- The LH window regulator control switch is depressed longer than 0.4 seconds.

Feature Input:

NOTE: Delayed accessory feature must he active. LH window regulator control switch, first down position.

Feature Output:
- One touch down relay coil output (grounded when activated, open circuit when deactivated).

Auto Mode:
Auto mode provides the One Touch Down feature (OTD feature). The OTD feature is activated when the LH window regulator control switch, for the LH window, is pressed between 0.04 and 0.4 seconds, and then released.

Auto mode will be terminated when any of the follow conditions are met:
- The LH window regulator control switch is pushed to the up position.
- Seven seconds have elapsed since auto mode was initiated.
- A window regulator electric drive stall condition is detected on the one touch down sense line inputs.







Feature Inputs:
- LH window regulator control switch inputs; refer to the LH Front Window Regulator Control Switch Inputs Table.
- One touch down sense lines, high and low (voltage difference corresponds to window current).
- Door open warning lamp switches (grounded when door is ajar, open circuit when door is closed).

NOTE: Delayed accessory feature must be active.

Feature Output:
- Down window relay coil output (grounded when activated, open circuit when deactivated).

DELAYED ACCESSORY RELAY

Features and Operation:
The delayed accessory feature of the GEM provides power for the power window system. These components are under the control of the delayed accessory relay:
- LH window regulator electric drives.
- RH window regulator electric drives.

The delayed accessory feature is active when:
- The ignition is in the RUN position or ACC position, (or)
- The ignition switch makes a transition from RUN or ACC to OFF, and all doors are closed.

NOTE: Delayed accessory is suspended (off) while the ignition is in the START position. The delayed accessory feature is re-activated when the ignition makes the transition from START to RUN. The delayed accessory feature becomes deactivated if:

- Any passenger door becomes ajar when the ignition switch is in the OFF or KEY OUT positions.
- Ten minutes have elapsed since the ignition made a transition from RUN or ACC to OFF.

Feature Inputs:
- Ignition switch RUN position: 12V on both RUN and RUN/ACC inputs.
- Ignition switch ACC position: 12V on RUN/ACC input only.
- Door open warning lamp switches (grounded when door is ajar, open when door is closed).

Feature Outputs:
Delayed accessory relay coil output (grounded when active, open circuit when inactive).

Delayed Accessory Relay
The GEM controls the delayed accessory feature and the power supply to the power windows through the delayed accessory relay.

The relay is activated by applying ground directly to one side of the delayed accessory relay coil, and is deactivated by removing the ground signal.

BATTERY SAVER
These components are under the control of the battery saver relay:
- Delayed accessory relay
- Overhead interior lamp with map lamps.
- Underhood lamp switch
- Glove box lamp switch
- Overhead interior lamp switch
- Interior lamp relay coil.

The battery saver relay becomes active (relay coil is energized) when the GEM is in the awake mode, and is deactivated (relay coil is de-energized) when the GEM is in the sleep mode.

The battery saver will remain active until the ignition state is not ACC or RUN and 45 minutes have passed since the last active input. At that time, the relay will be deactivated and power to the circuits will terminate.

Five minutes after the battery saver relay has become deactivated, the GEM will go into a lower power state known as sleep mode. In the sleep modem the GEM will deactivate all outputs and will monitor only select inputs.

Logical characteristics of the GEM battery saver mode are as follows:

Feature Input:
- Sleep/awake mode status.

Feature Output
- Battery saver relay control (open circuit in sleep mode, grounded when awake).