This section is a quick guide to troubleshooting the most common problems in vehicle systems. These faults are grouped under headings related to specific components and systems. They also contain a link to a chapter that describes the problem in more detail.
Remember that troubleshooting is not some kind of black magic that only experienced mechanics can do. It is simply the result of knowledge of the device combined with intelligent and systematic study of the problem. Work consistently, start with the simplest solution and gradually move on to the more complex. Don't overlook the obvious. If there is no fuel in the tank, the engine will not start, and if you left the car overnight with the headlights on, then the battery will run out. Don't look for deeper reasons. No one is immune from such oversights and you too.
Finally, if you have found the cause of the malfunction, think about why it could have happened and what can be done to prevent it from happening again. If a piece of electrical equipment failed due to poor contact, check the contacts of other electrical circuits so that they do not lead to the same malfunction. If the same fuse blows intermittently, do not replace it. until they found and eliminated the cause. Remember that a minor failure can be a harbinger of a more serious malfunction.