Skip the auto shop - Our mechanics make house calls

Q: Battery jump reverse connectors

asked by on

I went out to my car today and tried to start it and realized I had a dead battery. I got a jump from a friend, but he made the mistake of putting the connectors on in the reverse direction, so now my radio won’t work. I thought if I swapped out my fuses it would help but they blew. It doesn’t look like any of my wires burned under my hood and my cigarette lighter is working OK. Do you know how I can get my radio to work again? I hope it isn't fried.

Hey there, thanks for writing in about your 2013 Kia Fote Koup. Fuses are in place to protect wiring and components from failure. By connecting the cables in reverse direction you created a surge in amperage, and the flow of electrical current in the opposite direction could have harmed wiring to the radio as well as the battery. Consider yourself lucky that nothing else has been damaged. When a fuse opens, the circuit, or in this case, the radio is shorted. This may require replacement of the radio. If you would like to have this looked at, a certified technician from YourMechanic diagnose your electrical problem and advise you on 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
  1. Home
  2. Questions
  3. Battery jump reverse connectors

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: Turn signal non stop blinking and has a fast noise.

Hi there. Check the lights and see if there is a bulb that is burned out. A flasher will start to flash quickly when a bulb has burned out causing the power to be transferred to one light only and...

Q: Horn stopped working

Hi there. There are multiple reasons for an inoperative horn. Diagnosis will need to be performed to identify the cause of failure. It may just be a blown fuse, a faulty horn relay, a faulty horn contact switch, or a...

Q: losing power

Hi there: In most cases acceleration issues are caused by restriction of fuel or air into the fuel injection system to be burned inside the combustion chamber. This could be the result of damaged mass air flow sensors, EGR valve,...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...