GMC 19116049 Fuse,Mini 25 A

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There are different sizes of fuses, including small, medium, and large, all with the same blade terminal design. The medium and large fuses can be removed by hand, but the small fuses require pliers or a fuse-puller tool.

When an electrical component fails, you can check the fuse with a test light by checking for power at the exposed terminal tips of each fuse. If power is present on one side but not the other, the fuse is blown. You can also visually inspect it for signs of being blown.

Circuit breakers protect specific circuits like power windows and power seats. They reset automatically, so if there is an electrical overload, the circuit will momentarily fail and then come back on. If the circuit does not come back on, it should be checked immediately. Using a voltmeter, each end prong of the circuit breaker should be tested for battery voltage with the negative lead on a good chassis ground. If there is battery voltage only at one end, the circuit breaker needs to be replaced.