Q: Courtesy light fuse drains battery 2000 Chevrolet Silverado

asked by on

Tracked my parasitic battery drain using multimeter to the courtesy light fuse under the hood. Verified results by unplugging fuse and battery does not drain down overnight. With fuse replaced battery does drain down overnight. Would like to address problem, need advice and instructions.

My car has 305000 miles.
My car has an automatic transmission.

Hi there - great diagnostic work! At this point, having identified which circuit is causing the drain, you will need a wiring diagram that identifies what other devices are on this circuit (clock, underhood light maybe?), and could be drawing current. For assistance, I recommend a wiring inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, and give you an accurate assessment of damage and cost estimate for repairs.

Was this answer helpful?
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. Courtesy light fuse drains battery 2000 Chevrolet Silverado

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: Oil pressure dropped to zero

The engine would need to be diagnosed to find the reason for it to seize up. The oil pressure dropping to zero is an indication that the oil pump may have failed, and starved the engine bearings of oil. If...

Q: Truck would not start this morning. 2011 Chevy Silverado. would not crank and service traction control came on. Help!

Hello, thank you for writing in. If the starter is not attempting to engage and turn over the engine, then you are likely not getting enough power to the starter due to a dead battery. You should try jump-starting the...

Q: Grinding in front right wheel

Hello, and thank you for writing in. When dealing with these issues there needs to be a general inspection done of the drive shaft, transfer case, differentials, and axles. Look for any obvious signs of damage, fluid leaking, or parts...

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 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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.