Does the OBD 2 check your alternator?

OBD-II (On-Board Diagnostics II) systems primarily monitor the engine and emissions-related components, rather than directly checking the alternator. However, the OBD-II can detect issues related to the charging system, such as low voltage or battery problems, which may indicate a failing alternator. If the alternator is not functioning properly, it can trigger warning lights or codes related to the electrical system. For specific alternator diagnostics, a multimeter or dedicated diagnostic tools are typically used.