ScannerDanner Premium subscribers! There is a new 8 part basic electrical course I just recorded and uploaded to my website. (there is 14 day free trial)
It was designed with the brand new student in mind.
Some of these concepts I cover throughout my course but I've never before condensed them in one series like this.
This will be especially helpful for all of my new subscribers who feel they need a little bit more training on basic electrical systems before jumping into my course. You will find these new videos listed within the "Basic Electrical Concepts" playlist.
Here is a topic list for all 8 videos:
Part 1
voltage testing
results of a bad block ground
a voltmeter reads difference in potential 7:50
DMM ports and internal resistance 11:00
no current flow = no voltage drop 25:10
Part 2
no crank basic testing using dome/headlights
tap test of a starter 5:00
relay pin designations 14:40
standard relay operation and testing 16:00
why relays need two power feeds 20:20
using a test light to check continuity through and electric motor 27:10
pull-in and hold-in starter solenoid wiring 29:32
Part 3
relay pin designation review
starter designs and operation
how bright should your test light be? 5:00
what does the term "energized" mean? 9:35
introduction to power and ground side switching 11:46
purpose of a relay 16:00
operation of a push button starting system 17:45
Part 4
importance of accuracy on mobile diagnostics
how to locate a wiring problem 4:17
starter motor misdiagnosis 8:39
why the test light was dim, bright and not lit on the "S" post circuit 12:25
heat equals a rise in resistance 13:15
low voltage on a fuel pump power wire from excessive current flow (PTC resistance) 18:25
why it is important to measure amperage at times, when you have low voltage 26:12
Part 5
why the ohmmeter is inaccurate
how an ohmmeter can read good on a bad circuit 5:00
chapter 1 page 25 review of voltage and resistance testing 7:46
the brightness of a test light bulb (2 resistors in series) 19:02
Part 6
using an inductive low amp probe and what are its limitations
review of the milli scales (millivolts, milliamps, milliseconds)
lab scope displays (volts/time) 1:50
how does an inductive amp probe reading display on a scope or DMM
mini cooper with a seized alternator and the limits of a low amp probe 6:30
lab scope zero line and amp clamp polarity 12:30
setting up a scope for two channels 16:00
can you damage a low amp probe with too much current? 17:54
Part 7
short to ground testing using an ohmmeter
introduction to transistors in a computer 12:50
circuit voltage levels (energized and de-energized) 15:30
Kirchhoff's voltage law 17:10
short to ground test with an ohmmeter 25:00
short to ground test with a test light 34:25
voltage waveforms and which side of the circuit you must be on to acquire one 41:00
Part 8
scope waveforms continued
where to measure current flow in a circuit 3:22
measuring a group of injectors from the fuse box with an inductive amp probe 4:30
how to sync multiple signals by unplugging one injector (for single channel scopes) 9:30
how to sync multiple signals using a second channel 12:55
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