Heated Glass - Operation

OPERATION

When equipped, the rear window defogger system (also know as the Electric Back Light (EBL) system) is actuated by a momentary switch located in the accessory switch pod, in the instrument panel. When the rear window defogger switch is pressed to on, a request signal is sent to the Body Control Module (BCM) to energize the EBL relay located in the Power Distribution Center (PDC). When the EBL relay is energized, fused battery current is directed to the rear window defogger grid lines. The grid lines heat the glass to help clear the rear window of fog or frost.

An indicator lamp in the instrument cluster illuminates when the EBL system is on. The BCM contains the EBL system control circuitry, including the timer logic.

NOTE: The EBL system turns off automatically after ten minutes of initial operation. Each following activation cycle of the EBL system will last five minutes.

The EBL system automatically turns off after an initial programmed time interval of about ten minutes, as long as the ignition is left in the Run position. If the rear window defogger switch is pressed to on again after the initial time interval has expired, the EBL system will automatically turn off after about five minutes. The EBL system will also turn off if the ignition is set to any position other than Run, or by manually pressing the rear window defogger switch a second time.

Repair of the rear window defogger grid lines, bus bars, terminals or pigtail wires can be accomplished using the Mopar(R) Rear Window Defogger Repair Kit (Part Number 04549275) or equivalent Service and Repair.