Honda 38221-SNA-A31 Fuse, Blade (7.5A)

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The electrical circuits of the vehicle are protected by fuses, circuit breakers, and fusible links, the main fuse/relay box is located in the engine compartment, on the driver-side side of the battery and the interior fuse/relay box is installed under the driver's side of the dashboard. They are the small fuses, the medium fuses, and the large fuses; the blades are all of the same terminal; with the medium and the large fuses being easily pulled out by hand, while the small fuses have to be removed by the use of a pair of pliers or by a small plastic fuse-puller instrument. After turning on on a lighting component for instance, if it does not light, the fuse has to be checked first, use of test light to check for power at the terminal tips; if power is confirmed on one side of the fuse but not the other the fuse is blown and can also be confirmed by checking the element in-between the terminals. It is also very important to ensure in the right type of fuses to replace the blown ones, as may be tempting to use whatever would fit physically into the fuse base; this arrangement is not advisable; every circuit needs special protection and this is denoted by the amperage value printed on the body of the fuse. If a replacement fuse goes off as soon as possible, the problem that has caused the fuses to burn out frequently is usually a short circuit occasioned by faulty wiring and should be corrected. Some circuits are fused using fusible links, especially those not fused or not likely to carry heavy current, such as the one between the alternator and starter motor; these can be replaced with one of the same amperage after disconnecting the negative battery terminal, and if the new fusible link is blown, then the circuit needs to be debugged before fitting another. Circuit breakers protect individual circuits such as a power window or a heated seat and may usually clear on its own after an overload implying for a while that it has failed; if it does not restore, it's a sign that it needs immediate examination. For basic tests, the circuit breaker can just be gently pulled out of its slot to enable the use of voltmeter; sometimes there will be voltages present at one end only, in such instances; the breaker should be replaced, more so if some exhibit signs of needing to be reset manually.

To protect the electrical circuits of the vehicle there are fuses, circuit breakers, and fusible links, the main fuse/relay panel is in the engine compartment while the interior fuse/relay panel is in the compartment for passengers. The various uses of the fuses and relays are indicated at the cover of the fuse/relay box while each of the fuses located in the fuse panel is designed to protect a particular circuit, for which it is labeled. In sizes, fuses exist as small, medium and large fuses all of which employ a blade terminal type, with the medium and the large fuses being easily pulled out by hand, while the small ones have been designed to be removed by use of pliers or a plastic fuse pick. When an electrical component is dead, the first thing which should be checked is the fuse because a blown fuse can be checked with the naked eye, while checking power at terminal tips of the component requires use of a test light. Blown fuses should be replaced by the correct fuse rating as fuses of other rating offers inadequate circuit protection. In case the fuse is replaced only to go off again, there is an underpinning problem, which in most times is short circuit because of spoilt wires. Some circuits are protected by fusible links and are large fuses located in the engine compartment fuse/relay box, which can be replaced by another blank fusible link if removed with the battery negative terminal disconnected. Other types are dedicated to certain circuits such as power windows or heated seats and may be of the automatic resetting type in case of an overload; however, if they do not reset, then an immediate check is required. For simple diagnostics, the breaker can be gently withdrawn from the slot allowing the use of a voltmeter; if voltage is detected only at one pole, the breaker requires replacement; some circuit breakers may need to be manually reset.

When an electrical component fails, checking the fuse first is essential.

Circuit breakers protect specific circuits like power windows or heated seats and may reset automatically after an overload; if they do not reset, immediate inspection is necessary.

The under-dash fuse and relay box is found in the left kick panel, which must be removed for access to the fuses.