This unit describes the skills and knowledge required to diagnose and repair faults in the low-voltage electrical systems of marine vessels, such as dash instrumentation, switch and fuse panels, bilge pumps and lighting, global positioning systems (GPS), depth sounders, fish finders, communications equipment and radars. The unit involves preparing for the task, sourcing a diagnostic testing strategy, diagnosing the cause of the fault, carrying out the repair, performing post-repair testing, and completing workplace processes and documentation.

This unit applies to those working in the marine service and repair industry.

No licensing, legislative, regulatory or certification requirements apply to this unit at the time of publication.