Q: Electrical shorts turning the engine off.

asked by on

when I use the power windows, the stereo will cut off. other times, with the AC, radio and engine running pushing the window buttons will dim the electrical system but nothing else. weirdest issue is with AC, radio and engine running, when I turn on the headlights, it kills the engine. checked alternator symptoms but they don't match the problems I'm having. headlights are bright and all lighting appears normal.

My car has 215500 miles.
My car has an automatic transmission.

Hello. It sounds like there is a serious connection issue going on. Most of the time this is caused by a bad alternator. It can also be caused by a bad negative battery terminal connection or a failing positive battery cable. I usually test the battery cables first to see if they have high internal resistance and to make sure that they have good connections. If they are fine then I load test the alternator. If that is not the issue either then a voltage meter will need to be used to try and find where the voltage issue lies. If you need to have this electrical issue fixed, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose the electrical system.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  1. Home
  2. Questions
  3. Electrical shorts turning the engine off.

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: belts could not be changed because they couldn't not be removed by mechanic

Nissan and Infiniti vehicles usually require you to adjust two different bolts to remove the belt. The two bolts are the lock bolt and the adjustment bolt. These bolts are usually located on the power steering pump or the alternator....

Q: my car idle too high whining when accelerating and car hesitates going in reverse

If the fluid level in the transmission is too high or too low that can cause the transmission to malfunction. The fluid level should be corrected and then the transmission re-evaluated. With regard to the high idle, In the majority...

Q: I have a 2001 infiniti i30 I replaced the battery the starter and that alternator it still want crank up

Hi There, A number of things may cause the motor no to start. Depending on whether or not the vehicle will turn over will determine what the next step should be. If the engine does not turn over, I would...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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...