Q: Q: Car has no electrical power at all

asked by on

Car cigarette lighter stopped working randomly. Then, Car battery light kept coming on when my car was powered off, this lasted for weeks. Then it completely died and lost all electrical power when I was driving on the highway one day, and it hasnt cranked or started up since. What could be wrong with my car?

My car has 178000 miles.
My car has an automatic transmission.

A number of components or situations can be causing this. If the alternator is not charging and providing the electrical needs of the vehicle, the battery will be drained. Once it is dead, nothing in the car will work. Other components like a main relay can be preventing electrical power from getting to the fuse box, starter and ignition circuits, etc. A broken fusible link between the battery and starter can also be causing this situation. Broken wires, loose or corroded connectors can be just a few of the causes. Any number of electrical issues can cause issues. A certified technician will be able to inspect the vehicle to determine the cause of the no start and no power.

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. Q: Car has no electrical power at all

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

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...
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...