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Number 12 fuse keeps blowing outso your radio and dome light shut off when you replace it blow again in my 1998 dodge ram pickup.?
Wiki User
∙ 15y ago
Whether in an automotive electrical system or in a building electrical system, the repeated blowing of fuses or tripping of circuit breakers is caused by the same thing, a short circuit or an extreme overload condition. Fuses and circuit breakers are designed and installed in electrical systems to protect the system from overheating from increased electrical loads. A short circuit is a situation in which a "hot" wire, or any hot component has come in contact with a "grounded" wire or component [any matallic component which at some point is connected to the battery negative (ground) terminal, like metallic body or frame parts]. An overload is a situation in which too many electricity using devices [or one "way to big" one] have been added to a circuit, or a device which uses more current [measured in Ampheres (Amps)] than the circuit wiring was designed to safely carry. Some examples of an overload include add-on electrical equipment such as, for example: Monster multiple light off-road light bars, or monster sound amplifier systems. ANY TIME a fuse blows or a breaker trips is an indication of an UNSAFE condition which could damage the wiring system, OR WORSE, cause a fire which could destroy the vehicle.
Wiki User
∙ 15y ago
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No heat Pontiac Montana?
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