Heated Glass - Operation

OPERATION






NOTE: ATC control shown. MTC control similar.

The electric backlight (EBL) system is controlled by a momentary push-button switch inside the mode control knob (4) on the A/C-heater control (1) located in the instrument panel center bezel. When the rear window defogger switch is pressed to the On position with the ignition switch in RUN, the switch sends a request signal over the CAN-IHS bus to the totally integrated power module (TIPM), which provides a ground path to energize the coil in the EBL relay. When energized, the EBL relay provides battery current through a fuse to the rear window defogger grid lines and to the heated side view mirrors, when equipped. The grid lines heat the glass to help clear the rear window and side mirror surfaces of fog or frost.

An amber indicator in the mode control knob will illuminate to indicate when the EBL system is operating.

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 be automatically turned off after an initial programmed time interval of about 10 minutes as long as the ignition switch is in RUN. After the initial time interval has expired, if the rear window defogger switch is pressed to to the On position 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.

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.

Circuit protection for the EBL system is provided by fuse 13 located in the TIPM.