Whats the difference between the fuse box under the hood and Fuse Box inside car? (2014, van)
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The one in the engine compartment holds the fuses for devices like the cooling fans, the anti-lock brake pump and the engine control unit -- all of which are located in the engine compartment. Another fuse panel, usually located in the dashboard near the driver's knees, holds fuses for the devices and switches located in the passenger compartment.
You mean besides the fact that one is under the hood and one is inside?
The one under the hood usually holds the fuses for the control-related fuses (ignition, fuel pump, etc.), the one inside usually houses the fuses for accessories (radio, heater, etc.).
As far as why one is under the hood and one is inside, I don't know; but I would guess that it's so that the mechanic trying to diagnose a problem with how the car runs and may be covered with dirt or grease from crawling underneath or poking around under the hood won't have to get inside your car to check the fuses.
The majority of direct-to-battery fuses and relays are under the hood, usually it's only smaller ignition-switched devices that are fused under the dashboard.
If the big relays were inside the car, they'd get complaints about the clicking noise.
It varies. Some only have one under the hood, some only under the dash. We have a van where most of the internal items' fuses are in the back inside a side panel. IF I remember correctly my old camaro had key systems in the inside panel (like the ABS ad turn signals) while some less critical fuses were under the hood (like the lighter socket).
When there are two fuse boxes Usually the big systems circuits and larger (30 amp) fuses are under the hood and the internals are under the dash, but it is not consistent. Sometimes most of the circuits are that way, but a few surprise circuits are not where you would expect them to be. I suspect it has more to do with who designed a given system and when the circuit was designed in than anything else. Thus, if the sound system wiring was the last thing they designed, and the inside fuse box was filled up , it might go under the hood.
A few cars I had random single or 2-4 fuse mini panels tucked into some oddball location that you would never find unless you had a book.
All I know is I miss the days when all fuses were in one location, mostly under hood. 1990s and earlier.
Oh, yeah, love me those rascally, immobile, breakable, mounted to the underside of the dash, glass tube fuses. NOT.
My only complaint was recent discovery that the fuses have been downsized and I need another box of spares for the 2014 car.
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Relay noise?
