Skip the auto shop - Our mechanics make house calls

Q: Fuse box modification.

asked by on

My 10A fuse does not fit in the slot. Under the hood. I'm trying to add a 10A for my steering wheel heater. I noticed it was empty. I made sure I looked at the fuse diagram and that is the same slot. When I plug in 10a fuse into slot, it is loose, like it doesn't lock in like the other fuses. I tried other 10a slots and the same 10a fuse does fit and lock into place. What should I do?
My car has an automatic transmission.

A: Hi there - from your description, it sounds...

Hi there - from your description, it sounds like there is no electrical socket in the fuse block in this position. Manufacturers used to include wiring for all possible options when the vehicle was built - using a single wiring harness for all vehicles. This is (mostly) no longer the case, they can create different wiring harnesses at lower cost. Using a flashlight and voltmeter, make sure there is a fuse socket in the location you have targeted, and that one side or the other of the socket has 12 volts to it. Then you can add wiring for the accessory you wish to power up. Make sure the wire you use has a higher current capacity than the fuse rating so you do not overheat the wiring and risk fire damage. Good luck!

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

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: car has bad smell when I run it coming from under the hood

For this diagnosis it would've been helpful if the smell was described in more detail to help you with the problem. For example, the smell of a dead animal versus the smell of burnt oil. If you cannot describe it...

Q: 2000 escalade will not lock with the key in the ignition, it only chimes and doesn't engage lock.

Hi there. If the driver door is not locking with the door ajar and the key in the ignition, that is normal. If all of the doors are not engaging the locks with the key in the ignition and the...

Q: my truck cut off while I was at a light and wont start back up

Anytime a vehicle dies, or simply won't start, we need to first find what the motor is missing out of the following: Fuel Spark Injector pulse Sensor signal Camshaft timing It needs every one of these to...

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...