Divide this by 1000 to come up with 1. Current is fed to the motor via a switch on the dash. This can be caused by an electrical component drawing to much current or a wire that touches a ground. The actual repair usually consists of an inexpensive wire connector and some tape. Cigarette lighter fuses, like , blow when the circuit draws more amperage than the fuse is designed to handle. Actually, the load of the circuit should have nothing to do with choosing a fuse size. These are normally mounted on the rear of the motor but check with your workshop manual first.
The car's heating system consists essentially of a motor-driven fan to blow warm air from the engine bay to the car's interior. All information collected by these cookies is aggregated and anonymous. If the fan motor now works, the switch is faulty. This will enable you to take each wire and test it as was done with the first example of the fan motor and relay. Clip the wire of your circuit tester to one end of the resistor, then probe the other terminals on it.
Whether you need to remove the dashboard to wire the accessory will usually depend on where you plan to use the device inside the vehicle. Having said that this is ideal it is nearly always impractical as it would lead to many fuses fitted throughout an electrical system. If you want to mount the accessory to the dash, you'll probably need to remove the center part of the dash or the console. And example of a relay in action, To start the car, you put the car key into the ignition switch and turn it. If there is a short anywhere along this length then it is very likely to catch fire as the first fuse will not experience the excess current.
And if the problem in your circuit is actually some type of short, putting in a larger fuse may cause the wiring to heat up to the point where it could melt or even cause a fire. Before disconnecting the battery terminal, switch off the ignition. Looking at the circuit described and knowing when the fuse blew will help. The only fault that is likely to develop is that the fan stops working because of a break in the electrical circuit. You can then use a small crescent wrench to loosen the terminal bolt and remove the cable.
One of the first questions to ask when planning your installation is what size wire to use, which will later determine what fuse to use. In most cars the heater motor is situated under the centre of the dash, which makes it rather inaccessible. Find the items that you are installing and their current requirements. They push-fit into fuse holders or boxes and are held in place by friction. Helpful Information A relay is switch that utilizes an electrical trigger signal to activate.
In addition to the power wire that you must run to the fuse panel, you must also wire the ground for the accessory. Then probe the switch input terminal. Here the car maker use a heavy duty style relay. We may also collect personal data such as your name, job title, company name, address, email address and telephone number either directly from you or by combining information we collect through other sources. This article will only cover what should be the basics for every type of fuse box. If you have a wrench set, you'll probably need to use the 8mm or 10mm wrench to remove the bolt, depending on your vehicle. Although a smaller amp value means the fuse will fail faster, it also protects your devices and accessories from potential damage.
Now let's say that the fuse blows after the cooling motor is turned on. Or if you want i can send you wiring schematic. Step 2 — Fan Removal In your radiator, find the cooling fan. How to wire a viper alarm with remote start the right way. To check the motor windings you need a circuit tester.
Many cars have a second fuse box inside the engine compartment. For this reason the length of cable from the battery +ve to the first fuse should be as short as possible so that damage is minimised in the event of an electrical fire. Are you still confuse well if you are I would not be surprise. Probe each wire in turn with the test lamp. Since that time, Grundy has written many guides to using various applications that are published on numerous how-to and tutorial sites. The other reason for not fusing the starter circuit is that if the battery is disconnected from the alternator whilst it is turning as would be the case if a fuse blew the diodes in the alternator's rectifier can be damaged.
Before the digital revolution, the only time you may have considered connecting a device to the fuse panel in your car was if you were installing a new stereo system. Where and when to use fuses In an ideal world each individual section of positive would be fused as this would provide the most protection and make fault finding relatively straight forward, because it would allow you to narrow down the problem to a single section of cable i. For slow speeds the dash switch directs the current to the motor via the resistor block. Step 5 - This test can be used to test all aspects of the wiring circuitry by moving the bulb ground to power. This precaution will ensure you do not shock yourself while installing the new wiring and prevent possible short damage to your fuse panel or accessory. Free up cigarette lighter adapters for other devices and get rid of a lot of the clutter by wiring devices you use most directly to the fuse panel underneath the dashboard.