Skip the auto shop - Our mechanics make house calls

Q: Fog lights staying on after jumpstart.

asked by on

My battery died and I got a jumpstart. Now, my fog lights will not go off.

The fog lights are turned on and off at the switch and the body control module controls when they come on or go off. This is not common but you may have a short in the system that is keeping the lights on from the jump starting. The body control module may have shorted or the fog light relay or fog light switch is shorted. You could remove the fog light fuse in the engine compartment till you get it looked at by a certified mechanic that could trace and see if the switch, relay or body module is the cause of the short. Jump starting can spike your computers in your car or the other car. I always recommend to jump a vehicle by not running the good vehicle and only using that vehicles battery and not their charging 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: Won't start

Hi there: In many cases when you turn the ignition and you hear a single click, it's due to the battery not having enough cranking amps to activate the starter motor. The power required to activate the starter is much...

Q: AT light turns on

There are many things that can cause a condition like the one you are describing. Unfortunately, with the limited information provided and all the variables, a diagnosis is difficult. Low line pressure, faulty SERVO, bad shift solenoid, faulty pressure control...

Q: Car won't start with a new battery, but it starts when I hook it up with jumper cables.

This problem may be due to a faulty starter relay or a bad ground connection. As you may know, the starter relay directs power from the battery to the starter. When the starter relay does not function correctly, in...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
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...