Rear Window Defogger Switch: Description

WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.

The switch for the rear window defogger (EBL) system is integrated into the A/C-heater control, which is located in the center of the instrument panel. When the rear window defogger switch is activated, the A/C-heater control requests the body control module (BCM) to operate the rear window defogger (EBL) relay. See Fig 1.

When the EBL relay is activated, current is directed to the rear defogger grid lines and the heated side view mirrors (if equipped). The grid lines heat the glass to help clear the surface of fog or frost.

Fig 1: Locating A/C-Heater Controls & Defogger Switch

Courtesy of DAIMLERCHRYSLER CORP.

1 - REAR WINDOW DEFOGGER SWITCH

2 - BLOWER SPEED CONTROL

3 - MODE SELECT CONTROL

4 - TEMPERATURE SELECT CONTROL