ELECTRIC BACKLIGHT (EBL) SYSTEM
NOTE: Illumination of the defogger switch indicator lamp does not necessarily mean that electrical current is reaching the rear glass heating grid lines.
NOTE: For circuit descriptions and diagrams of the rear window defogger system, refer to 8W - WIRING DIAGRAM INFORMATION.
Operation of the electric backlight (EBL) system can be confirmed by the following:
(refer to 24 - HEATING & AIR CONDITIONING - DIAGNOSIS AND TESTING - HVAC SELF DIAGNOSTICS)STEP 2STEP 2
- Confirm the ignition switch is in RUN.
- Confirm the rear window defogger switch is ON.
- Confirm the EBL feed wire (3) is connected to the heating grid positive terminal and that there is continuity between the EBL relay and the heating grid.
- Confirm the EBL ground wire (6) is connected to the heating grid negative terminal and that there is continuity to ground.
- Check the EBL relay and fuse located in the junction block (JB) inside the vehicle and the fuse located in power distribution center (PDC) located in the engine compartment. The relay and both fuses must be tight in their receptacles and all electrical connections must be secure.
(refer to 8 - ELECTRICAL/HEATED GLASS/GRID-REAR WINDOW DEFOGGER - STANDARD PROCEDURE)
(refer to 24 - HEATING & AIR CONDITIONING/CONTROLS - FRONT/CONTROL-A/C HEATER - REMOVAL)
(refer to 24 - HEATING & AIR CONDITIONING/CONTROLS - FRONT/CONTROL-A/C HEATER - REMOVAL)