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What is the function of an automotive power distribution box?

1 Answers

SimonFitz

07/25/25 3:40am

The function of an automotive power distribution box is to facilitate assembly and troubleshooting during repairs. The automotive power distribution box is essentially the car's fuse box, which is located in different positions depending on the vehicle. Different electrical loads such as ignition circuits, headlights, parking lights, horns, and air conditioning use fuses of different colors and specifications for distinction. The reasons for blown fuses in the automotive power distribution box include: 1. Installation of higher-wattage car bulbs; 2. Addition of a multi-way adapter to the car's cigarette lighter socket, leading to simultaneous use of multiple auxiliary devices; 3. Excessive installation of electrical equipment, with poorly insulated wiring causing oxidation at the connections; 4. Direct rinsing of the engine compartment with tap water causing short circuits; 5. Aging wire insulation and exposed metal wires leading to short circuits; 6. Incorrectly connecting a high-power dual-cylinder electric air pump to the cigarette lighter socket for use.

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