Skip the auto shop - Our mechanics make house calls

Q: After replacing battery, fuse box, & starter, the battery is still drained

asked by on

I have replaced the battery, fuse box, and also the starter, but the battery is still being drained. I just can't figure out what is causing it. What else should I replace to solve this?

Hello. If the battery is draining, then you typically have a failing body control module to the ignition switch. These commonly cause this on your vehicle. I usually start by testing the ignition switch first to see if there are any circuits staying on. If there is, then the switch needs to be replaced. If not, then the body control module needs to be reprogrammed and then replaced if the programming does not work. If you need to have this done, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose your battery issue and let you know what needs to be done.

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!
  • Home
  • Questions
  • After replacing battery, fuse box, & starter, the battery is still drained

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: Leak in metal brake line

This is a common issue with your particular vehicle. The problem is the brake lines were not coated when the truck was built, and the lines rust could be causing the leak. A brake line replacement will most likely be...

Q: My car has crank and no start issues.

There is one thing I don't think you have listed or have checked. That would be injector pulse. You can have fuel pressure but without injector pulse from the ECU, the injectors will not open and the cylinders will not...

Q: Electrical issues, power steering shuts off & car stalls.

It is most likely a coincidence that these problems began happening after the turbo was replaced. However, it is possible something that occurred during the diagnosis or repair of the turbo may have created all these problems. Regardless, with the...

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...
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...
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...