Electric power is the "blood" of the engine management system
Your Focus, like any other car, relies on electricity to drive: its subsystems, such as engine management, fuel injection or lighting, are completely dependent on electricity. With such a strong dependence, it is not surprising that many drivers associate unpleasant experiences with the trio consisting of the battery, starter and alternator. The reason for this is often under the hood, i.e. in the workplace and peripheral units of these three main players. To clarify, it should be said: the working conditions there are far from ideal. It is too cold, too hot, it can be damp or everything can be soaking wet. Many energy consumers are in unprotected places, so failures in the on-board electrical system are pre-programmed. In addition, sometimes batteries capitulate in the face of bitter frost or extreme heat.
Most faults in on-board electrical systems can be easily fixed
After reading this chapter, you will no longer have a compelling reason to capitulate to a "dead" switch or a non-working lamp. It often happens that only one wire connection has broken or a contact has rusted. Many problems with on-board electrical systems can be eliminated with simple means, even if you are not a professional electrician and do not have ambitions to become one.
(The original article is posted at: Fordbook.ru)