Hazard Warning Lamps

WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.

With the hazard switch in the On position, the hazard warning system is activated causing the hazard switch button, the right and left turn signal indicators, and the right and left turn signal lamps begin to flash on and off. When the hazard warning system is activated, the circuitry within the hazard switch and electronic combination flasher unit will repeatedly energize and de-energize two internal relays that switch battery voltage from a fused B(+) fuse in the Junction Block (JB) to the turn signal indicators, and the turn signal lamps through the right and left turn signal circuits.

The flashing of the hazard switch button illumination lamp is performed internally by the hazard switch and combination flasher unit circuit board. The hazard warning lamps can also be energized by the Body Control Module (BCM) through a hazard lamp control circuit input to the hazard switch and combination flasher unit.