Electrical Spring

This week has been a refresher on electrical. The biggest thing I took away from the video on fluke meters was about diode testing. A diode is a one way check valve that provides circuit protection. It' If you get a Out of limit reading on your meter for both directions of the diode then you have an open diode. If your meter reads voltage(~.5V) for both directions of the diode then you have a shorted diode. A very important component that has a diode is the alternator. It can fail if you switch the polarity of the battery by putting the cables backwards or jumping a car incorrectly. A faulty alternator diode can destroy a ECM since there is no longer circuit protection. Another thing I took away from was learning that a solenoid actuates something else. It converts electrical energy to mechanical energy that allows work to be done. An example of this is a magnetic switch which is exactly what a relay is.

Reason for the voltage drop resulting in a dim tail light.

Watched the Fluke instructional video on DVOMs.