Bad hazard switch.
Hazard Light versus Dead BatteryNO, IF the battery is truly dead, then the hazard lights will not work.However, if there is some power left in the battery, even though the voltage may be extremely low, then the hazard lights maycontinue to work.
94 mercury grand marque dashboard, hazard, and tail lights do not work?
Hazard lights should only be used when your car is stopped or coming to a stop. Using them while you are actually still driving can be dangerous. Other drivers will be unable to tell if you are going to change lanes or get off the road because your turn signals or 'blinkers' will not work when your hazard lights are on.
try replacing all sets of fuses for the hazard and the tail lights.
Front seating area, driver side, under dash, mounted on passenger side of steering column.
it dont have lights
Check the bulbs Check the flasher
If your 1999 Ford Expedition has turn signals that do not work but hazard lights that do work, it is likely that you have a fuse that is blown. You might also have a wiring issue including exposed wiring.
Your car has two flasher relays. One for the turn signal lights and one for the hazard lights. Replace the one for the hazard lights. Any auto parts store can tell you the location and sell you a new one.
Check the fuses first.
you must have a blowed fuse.