10:50
Aiming Headlight Beams
Justin Miller
5:55
How a Relay Works
10:34
Case Study: Diagnosing a backup lamp circuit using a test light
8:48
Case Study: Diagnosing a backup lamp circuit using a voltmeter
5:36
How "Duty Cycling" works to dim a light
8:56
How a scan tool can help you diagnose an electrical circuit
