This section covers the battery, starter and alternator components of the electrical system. For additional electrical troubleshooting information that may apply to these components, see 900 Electrical System-General.
The battery, starter and alternator are the three major component of the electrical system. The battery supplies electrical power when the engine is not running. The starter is an electric motor that rotates the engine via a flywheel when the key is in the start position.The alternator converts some of the engine's mechanical energy into electric energy whenever the engine is running.
The starter and alternator are not protected by fuses. To prevent accidental shorts that might blow a fuse or damage wires and electrical components, the negative (-) battery cable should always be disconnected before working on the electrical system.
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