Commander 4WD V8-4.7L VIN N (2006)
Heated Glass Element Switch: Description and Operation
SWITCH-REAR WINDOW DEFOGGER
DESCRIPTION
The switch for the rear window defogger (EBL) system (1) is integrated into the A/C-heater control (2), which is located in the center of the instrument
panel. When the rear window defogger switch is activated, the timing circuit integral to the A/C-heater control operates the rear window defogger (EBL)
relay. An amber indicator (3) in the rear window defogger switch will illuminate to indicate when the EBL system is turned on.
When the EBL relay is activated, current is directed to the rear window defogger grid lines and to the heated outside rear view mirrors. The grid lines
heat the window and mirror glass to help clear the surfaces of fog or frost.
OPERATION
An LED indicator will illuminate when the rear window defogger switch is activated. When the switch is activated, the A/C-heater control operates the
rear window defogger (EBL) relay. The EBL relay controls the current flow to the heating grid of the rear window and to the heated outside rear view
mirrors.
NOTE: The EBL system turns off automatically after 10 minutes of initial operation. Each following activation cycle of the EBL system will last 5
minutes.
The EBL system will automatically turn off after a programmed time interval of about 10 minutes as long as the ignition switch is the Run position.
After the initial time interval has expired, if the rear window defogger switch is turned on again during the same ignition cycle, the EBL system will
automatically turn off after about 5 minutes. The EBL system will also turn off if the ignition switch is turned to any position other than Run or by
manually pressing the rear window defogger switch a second time.
NOTE: ATC A/C-heater controls are NOT interchangeable between other model years or other vehicle lines. If replacement of the A/C-heater control is
required, only use the control designed for the vehicle being serviced.
The rear window defogger switch and the rear window defogger LED indicator cannot be repaired and, if faulty or damaged, the A/C-heater control must
be replaced.
