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: Will the failure of the fuel/air ratio sensor affect the starting of my wife's Toyota?

Hi there: The mass air flow sensor measures the amount of air that comes in and relays that information to the computer. This allows the air/fuel mixture to maintain the correct ratio for optimal performance. Usually the sensor is prone...

Q: Transmission slipping

Hi there! I would not want to fault your transmission so early. When stopped at a light, the transmission is not in use because the transmission is only in use when the car is moving. The transmission will only slip...

Q: 2002 Pontiac Grand Am GT security light on constantly and the car will only start after battery is run down and jumped.

Hello, thank you for writing in. You should start by scanning the vehicle for diagnostic codes to see what the security light is trying to tell you. Do this after you can get it to start and can take it...

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...
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...