more than likely its going to be a hazards light relay they give trouble on most cars especially all vw Audi etc. on most cars its built into the hazard light switch but u should check the fuse first
hazards and turn signals have separate flashers. replace flasher for turn signals
Turn signal flasher?
turn signals won't work. changed all the bulbs. Hazard lights work. 1999 Chrysler Sebring hardtop
Check the fuse
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.
There are two flashers, one for the hazards and one for the signals.
Flasher is faulty.
If the turn signals are inoperative check the hazard switch, if the hazards don't work replace the hazard switch, the signals will start working. if the hazards are ok ,the turn signal switch may be bad.
If your hazard lights don't work but your turn signals do work it could be that your Hazard Lamp Flasher needs to be replaced. Your car has both a "hazard lamp flasher" and a "turn signal lamp flasher". Your "turn signal lamp flasher" is working but your "Hazard Lamp Flasher" may not be working. Buy a new "hazard lamp flasher" and install it. The hazard lamp flasher is located behind the instrument panel to the left of the steering column.
The common reason why is a fuse blew.
They use separate flasher relays. Replace the turn signal flasher relay.
Hazard and turn signals usually use separate flashers, switch the flashers to see if turn signals work and hazards don't, if so replace the flasher you need to replace the blinker flasher unit it is different from the hazard unit they cost about 4 bucks the flasher unit is the big round thing in the fuse panel in the dashboard