The electrical system is a complex but essential part of what keeps your car starting, running, charging and doing the little, but important, things like locking the doors. And while voltage in automotive systems is much lower than say, household applications, it’s still important to enlist the guidance of a professional when making a diagnosis or beginning repairs because many components are extremely sensitive and can be easily damaged without proper training and knowledge.
The most common problems with electrical systems are a short or open circuit. A short circuit is what happens when a wire has rubbed through to ground causing a fuse to blow. An open circuit is what happens when a connection stops working because of a broken wire or a bad conductivity. Low battery voltage can cause strange problems to the electrical components of the car due to insufficient operating voltage. Because of the construction of wiring connectors they can sometimes create high resistance which causes heat making the connector have an open circuit. When performing wiring repairs a wiring schematic is sometimes necessary to trace wires or locate a component.
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