Skip the auto shop - Our mechanics make house calls

Q: Turn signal isnt working but hazards do

asked by on

When I flip the turn signal switch it does not work on either side but when I turn the hazard lights on they do. I have checked the fuse and there is nothing wrong with that and I have replaced the switch itself and it is still having the same problem.

My car has 90000 miles.
My car has an automatic transmission.

A: Hello. Your hazards are sent a constant sou...

Hello. Your hazards are sent a constant source of power from the battery for emergency situations, while the turn signals are designed to be sent through the ignition switch. They will only turn on if the vehicle is on, and the switch is engaged. When you say you changed the switch, are you referring to the turn signal flasher or the switch on the steering column? There is a small relay under the dash board that creates the pulsating of the light. If you do not hear the usual clicking of the turn signal when the switch is turned on, then the flasher relay needs to be replaced. Other electrical issues can be tracked down with a voltmeter. You will want to trace the electrical supply from the fuse and fuse box to the switch, to the relay flasher, and on to the bulbs. When you turn the signals on, the voltage should be available constantly up to the flasher. Then after that a pulsating voltage should be available from the relay to the bulb. Find where the voltage becomes unavailable, and that will be the cause of your issues. If you have not inspected the flasher relay, start there before you perform available voltage tests on the system.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Oil change intervals

I checked your vehicle maintenance schedule and it has a normal and a severe schedule. The normal schedule says to change the oil and filter every 7500 miles and the severe schedule says to change the oil and filter every...

Q: Hazard lights don't work, but the turn signals flash normally

The hazard and turn signals are controlled by the body control module on this vehicle. You will need to have the body control module circuits monitored by using a scanner that can access the body control module data stream to...

Q: Electric problem

Hello there, many faults will cause your 1998 Chevrolet Lumina to lose power and die after 30 minutes. The most common would be the fuel pump, engine control module, alternator, battery, wiring harness fault, coil, distributor, or a shorted wire....

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...