Operation

OPERATION

An LED indicator will illuminate when the rear window defogger switch is activated. When the switch is activated, the A/C-heater control requests the integrated power module (IPM) to operate the rear window defogger (EBL) relay. The EBL relay controls the current flow to the grids of the rear window defogger.

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 automatically turn off after a 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 turned on 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.

The rear window defogger switch and the rear window defogger LED indicator cannot be repaired and the A/C-heater control must be replaced if found inoperative or damaged A/C Heater Control - Removal.