Skip the auto shop - Our mechanics make house calls

Q: Horn not working in car

asked by on

Car horn not working.

A: Horns are a simple circuit to check. Check ...

Horns are a simple circuit to check. Check for power and ground at the horn while an assistant holds the button. If you have both, the horn itself is bad. Newer cars are usually ground side switched. If there is no power, check the fuse. If there is no ground, it could be a few things: the switch itself, the relay, the clock spring in the steering column, or a wiring issue. I recommend having a certified technician, such as one from YourMechanic, come out to your car's location to run a diagnostic inspection of your inoperative horn, and suggest the best path to repair.

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・Save up to 30%

Get a quote

What others are asking

Q: Oil Change

Your BMW X3 would be best served using the BMW recommended LL01 oil in the 5W30 weight. There are two possibilities in terms of the oil capacity in your car. The 2.0 Liter motor should hold 6 quarts of oil,...

Q: The headlights wont shut off and the horn keep honking when I turn them on.

It sounds like you have a rubbed through wiring harness or two. All the components you mentioned are switched on the ground side. That means if there is a short to ground on the switch side before the relay, then...

Q: Upgrade stereo size dimensions - 2013 Infiniti FX37

Hello. The exact speaker sizes depend on whether or not your vehicle is equipped with a Bose system. If it not, then your vehicle uses 2 x 3.5" tweeters in the dash, 2 x 6.5" speakers in the doors, and...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.