Subaru 82211FC150 Main Fuse (50A)

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A combination of fuses, circuit breakers and fusible links protects the vehicle's electrical circuits. There are two fuse boxes: one in the engine compartment and the other in the passenger compartment. The engine compartment fuse box is positioned at the left side of the engine compartment whereas the passenger compartment fuse box is located at the left end of the instrument panel. Every fuse has a specific purpose and included inside the fuse box cover is a spare fuses as well as removal tool. These use miniaturized blade terminal design for easy replacement or removal from a circuit. Using a test light, power can be checked at exposed terminal tips to ascertain if it's present on one side but missing on another side meaning that it's blown out completely. By simply plugging out an old fuse and inserting with new of same type together with amperage rating will be best way to go when replacing blown ones because they do not require any additional technical steps apart from just exactly doing what their names imply. Fusible links are employed where there may not be any need for ordinary fusing, or where high currents flow through them; therefore, these kinds of linkages can be substituted by obtaining another piece having similar amps. Circuit breakers usually protect certain circuits and are mostly located under an instrument panel. They reset automatically; however, if a circuit does not turn back on again after resetting it should be checked immediately. When checking a circuit breaker one must pull it slightly up so as to probe with voltmeter while each end should have battery voltage whereby only having voltage at one end means that such circuit breaker ought to be changed therefore providing evidence supporting this test result. Manual resetting applies in some cases to certain types of these devices.

The electrical circuits of the vehicle are safeguarded by a combination of fuses, circuit breakers, and fusible links, with two fuse boxes present, One of these modules is located in the engine compartment and the other is located in the cabin, the passenger area. The engine compartment fuse box is located at the left side of the engine compartment on models from 2000 to 2004, while that of the passenger compartment is at the left end of the instrument panel, behind the coin tray for models from 2005 and later, and in front of it for the earlier models. All the fuses are referenced with the corresponding circuit on which the fuse is secured indicated on the fuse cover and some additional spare fuses along with an exclusive removal tool are also present in the fuse box cover. Small fuses with blades on one of the terminal is convenient to be removed and inserted and while testing for power one has to use the light on the terminal end of the fuse check to see if the fuse is blown. To replace a fuse, one has to pull out the bad one then put a new fuse of the similar type and rating since it is unadvisable to use a fuse of a different amperage. Should a substitute fuse blow out again right away, the cause of the problem, which is usually a short circuit resulting from faulty wiring, should be fixed before placing a new fuse. Fusible links protect certain circuits such as the starter circuit which connects the car starter motor to the alternator and to replace the link, you will need to pull the negative terminal of the car battery. Some circuit breakers focus on the protection of certain circuits like those of power windows and heated seats and they may self-reach once an overload occurs. Vintage warning horn is tested by pulling the breaker slightly off its socket to with voltmeter to ensure battery voltage is available at both ends; if it's not, then the breaker requires replacement. Some circuit breakers are of the type that have to be reset by hand.

To replace a blown fuse, simply pull out the bad fuse and insert a new one of the same type and amperage rating. Spare fuses and a removal tool are usually included in the fuse box cover for convenience.