What are the causes of starter failure?

[DelKeegan]

The causes of starter failure include the following points: 1. Insufficient battery power. 2. Loose, corroded, or worn battery cables. 3. Faulty starter relay. For automatic transmissions, the gear position switch may also be faulty. 4. Blown fuse. 5. Starter motor failure, including issues with the electric motor and magnetic switch, as well as other component failures. Here are some practical diagnostic steps: For regular vehicles, you can use a wire to short-circuit the two terminals on the starter's electromagnetic switch to start the engine. If the starter operates, the issue is likely with the starter relay or fuse. If the starter does not operate, it can be determined that the starter itself is faulty, with the most common issue being the electromagnetic switch.