|Various Crimp Connectors|
|Inexpensive Volt Ohm Meter|
For diagnostics and repair you will need some knowledge and assurance. Let me just say, 12 volt repair is easier than you think and you need not be fearful. Many of the problems you are likely to encounter will be easy to solve, such as open circuits in the form of blown fuses or loose connections. Concerning safety, 12 volts will not deliver a shock and is unlikely to cause harm to your body as shore power can.