8001 Minnetonka Blvd.


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6407 West Lake Street


Mon-Thu: 7am -6pm
Friday: 7am – 5pm

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Know How the Electrical System in Your Vehicle Works

by | Jun 11, 2015 | Check Engine Light, General Car Maintenance, Headlights and Tail Lights, Safe Driving

The vehicle that you have will be one of the biggest investments that you make in your life. It is then important to try and keep it in the best condition possible when you drive and travel. There are several things that should be checked and inspected on a regular basis. One of these things includes the electrical system of your vehicle. The car’s electrical system is complex and is made up of many different car components. The car battery is the center of the electrical system. A car’s electrical system is powered solely by the car battery. A car’s electrical system is made up of a web of connected wires, fuses and relay systems. The wiring carries the current supplied by the car battery and directs it to various components. The car’s alternator is responsible for powering the car’s accessories. This includes the radio, lights, horn, and GPS. The car battery supplies the initial charge that allows the car to be started and then the alternator takes over the job of supplying a constant electrical feed.

Electrical Problem Causes

There are a few different signs you can use to pinpoint problems with your electrical system. When a light bulb burns out, a fuse blows, or a circuit is defective, the circuit loses its continuity and stops functioning. The car’s battery supplies the current for the car’s electrical circuits. An insufficient charge can be caused by a defective battery, voltage regulator or alternator. Low voltage can also be caused by poor connections to the battery. Often times electrical problems are intermittent. They may be caused by loose or corroded connections by the car heating up or cooling down, even vibration or moisture. Also, if you notice dim light or solenoids failing, this too can be a sign that something is likely wrong with your electrical system.

Signs of Electrical Issues

There are signs your car gives off that can help you determine that there is a problem with the electrical system. Since the electrical system is so complex, there are many parts within the system that you can check. One of the more common problems is a blown fuse, burnt fuse or open circuit breaker. Any electrical component that is not working correctly is likely to be caused by an open circuit, which can result from a broken wire or disconnections. Check your alternator. A bad alternator can affect all of a car’s electrical system as well. You will note any dimmed lights or stalling if you alternator is the culprit.

Ways to Repair the Electrical Issue

Fixing your car’s electrical system can be very difficult and should be taken to your auto mechanic to get looked at more in depth. However, there are some things you can do yourself to see where the problem lies. Checking that the battery has good connections and is free of corrosion is one of the first places you can start. First, you can isolate the problem by starting your vehicle and listen for a slow start. You may also switch on the windshield wipers, horn and headlights to indicate where the problem is. It is likely that a wire is faulty and not providing full power as it should.