Finding an open circuit [Toyota 4Runner N120]

Visually finding an open circuit can be quite difficult, since oxidized or poor contact connections are often difficult to notice. Sometimes it is enough to simply move the connecting wire or wire in the wiring harness in order to eliminate this malfunction.

Unreliable operation of electrical components is also often caused by oxidized or poor connections.

Finding a fault in an electrical system seems like a fairly simple operation if you understand that the operation of an electrical system is based on the current flowing from the battery through wires, switches, relays, fuses and fuses to the electrical components (light bulb, engine, etc.) and by (mass) the vehicle, from where it is fed back to the battery.

Any fault in the electrical system is an interference with the flow of current from or to the battery.

[Publication Reprinted from a web portal: ToyotaMan.ru]