Skip the auto shop - Our mechanics make house calls

Q: Fog lights

asked by on

I recently installed my fog lights and instead of installing a fog light switch i wanted to connect the same wiring for my headlights to my fog lights. So when i turn on my head lights i want the fog lights to turn on as well. so is it possible that the headlight switch can also be the switch for the fog lights instead of installing a different switch for the fog light?

My car has 99999 miles.
My car has an automatic transmission.

A: It is possible, but you will need to wire i...

It is possible, but you will need to wire in a relay and another fuse. The headlight switch and circuit is not designed to carry all that current. By using a relay, a small amount of current will engage the relay and allow a large amount of current to flow through the other contacts on the relay to the fog lights. I suggest doing a bit of research into how to wire a relay to prevent any possible electrical failure. If you still need help with this, a certified technician from YourMechanic can come to your car's location to diagnose the relevant electrical wiring.

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: What needs replaced if my key only turns back to ACC when I turn my car off?

Hi there. The Toyota Camry is one of my favorites! If you can only turn the ignition cylinder to the ACC position, then yes, this will drain the battery. Leaving the switch in the ACC position provides constant power to...

Q: What is the trailer sway control system?

While not all models have the trailer sway control system (TSC), if yours does, it provides important controls and safeguards when towing a trailer behind your SUV. Here’s what you need to know about this system: The TSC system...

Q: Cigarette lighter and console lights not working

The circuit for the light in the cigarette lighter is powered by the same power as the instrument cluster lights. If those lights work then you may just have a bulb that is bad and needs replaced. If you would...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...