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!
  1. Home
  2. Questions
  3. 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: When staring the car cold and hot the cars engine squeaks for 1-2mins then stops. I do have a new belt on and still squeaks

If the belts are on correct and are tight enough then the only thing it could be is the crankshaft damper is slipping and would need to be checked for slippage. I suspect the belts are not tight enough and...

Q: What motor / transmission do I have?

Hi and thanks for your question. Your 2009 Chevrolet Silverado 1500 could have the the LMG series 5.3L vortec engine or the LMF series 5.3L vortec engine with Active Fuel Management (AFM). The difference is that the LMF series increases...

Q: Car lights come on brakes are stiff not sure electrical on military base but it won't start.

If the lights were on and burning up fuses even up to 30 amps, then there is a major short in the vehicle's wiring system. Check to see what the lights were tied into when the aftermarket lights were installed....

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 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...
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...