Patriot 2WD L4-2.0L VIN 0 (2007)
Heated Glass Element Switch: Description and Operation
Description
DESCRIPTION
The switch for the rear window defogger (EBL) system (1) is located in the A/C-heater control (2) in the instrument panel center bezel (3). When the
rear window defogger switch is pressed to the On position a request signal is sent to the cabin compartment node (CCN), which sends a message to the
totally integrated power module (TIPM) to operate the EBL system.
When the high side driver in the TIPM is energized, current is directed to the rear defogger grid lines and to the heated side view mirrors (when
equipped). The grid lines heat the glass to help clear the surface of fog or frost.