Nitro 2WD V6-4.0L (2007)
Heated Glass Element Switch: Description and Operation
Operation
OPERATION
The amber indicator located in the blower speed control of the A/C-heater control will illuminate when the EBL system is operating. When the rear
window defogger switch is pressed to the On position with the ignition switch in RUN, the switch sends a request signal to the totally integrated power
module (TIPM), which then provides a ground path to energize the coil in the EBL relay. When energized, the EBL relay provides fused battery current
to the rear window defogger grid lines and to the heated side view mirrors, when equipped.
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 the On position again during the same ignition cycle, the EBL
system will automatically turn off after about 5 minutes. The EBL system will automatically shut off if the ignition switch is turned to any position
other than RUN, or it can be turned off manually by pressing the rear window defogger switch a second time.
The rear window defogger switch is diagnosed using a scan tool.
The rear window defogger switch and indicator cannot be adjusted or repaired and the A/C-heater control must be replaced if inoperative or damaged.
