Windows and Glass: Description and Operation

Glass, Frames and Mechanisms

NOTE: The Smart Junction Box (SJB) may also be identified as the Generic Electronic Module (GEM).

The glass, frames and mechanisms consist of the following components:

- Accessory delay relay
- Front Controls Interface Module (FCIM)
- Front door glass top run
- Front and rear door window glass
- Door window regulators and motors
- HVAC module
- Rear door fixed glass and top run
- Rear door glass run retainer
- Rear door window glass
- Rear quarter glass
- Rear window glass, which houses the rear defrost grid
- Rear window defrost relay
- Roof glass panel (if equipped)
- SJB
- Window control switches
- Windshield glass
- Standard power windows, which include one-touch up, one-touch down and lock-out feature (left front only)

Power windows

The window regulator control switch:

- can lock out passenger front and rear window control switches when the lock-out switch on the left front window control switch is turned on.
- can automatically lower the door window when the window control switch is momentarily pressed into the second detent position and released.
- can automatically raise the door window when the window control switch is momentarily pulled to the second detent position and released.

Delayed accessory feature

The accessory delay relay, located in the SJB, provides power for the operation of the power windows and the roof opening panel (if equipped). The accessory delay feature is active when the ignition switch is in the RUN or the ACC position, or when the ignition switch is changed from RUN or ACC to the OFF/LOCK position and the LF and RF doors are closed.

Rear window defrost

The HVAC module controls the state of the rear window defrost relay. When the engine is running and the rear window defrost switch (integral to the FCIM) is pressed, the HVAC module will activate the rear window defrost relay. When the rear window defrost relay is active, the rear window defrost grid will be energized.