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  Why Does My Car Have Two Fuse Panels?

 

  by Khalid R. Mustaffa

 

 

Depending on the year you started checking your car fuses,  you may have never noticed a car with one fuse box.

Cars in Houston will start this article with a brief historical introduction then get down to the business of cars with one fuse box versus two fuse boxes.

  • Most cars manufactured in the US, or are of an American car brand at one point only had one fuse box.

  • Until late 1980s the aforementioned cars had only one fuse box inside the car.

  • Japanese cars and European cars, the rivals had started to use 2 fuse panels almost a decade earlier.

  • They added a fuse box under the car hood for car engine related circuits. While  the American car manufactures were protecting the high amperage circuits by using special pieces of wires called fusible links.

Now days almost every car is designed and manufactured with 2 fuse boxes or panels, one inside the car, and another under the car hood. The general rule is that the car interior panel includes fuses for

  • Headlights, heater, radio, windows, seats, defroster, sun roof etc

  • The box under the car hood normally facilitates engine related fuses, such as the car ignition, injectors, fuel pump, braking system etc.

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