BASIC AUTOMOTIVE ELECTRICAL DIAGNOSIS PART 2 TEST LIGHTS AND VOLTAGE DROP

Part 2 of the Automotive how to Electrical diagnosis series. Today we’re going through use of test lights both good and bad. Also the use of relays and how to properly test electrical circuits with the use of voltage drop testing.

SP Tools USA Channel:

[humanresource]

I like that you're growing and transitioning.
I have to say that D. Sullivan (LoadPro) has been preaching the gospel of voltage drop testing for years and it never gets old.
Keep the videos coming.

[jackfrost]

I'm an engineer and people have to understand that you need to start at the bottom learning how thinks work. Been doing it a Long time from a kid to nuke radar to r&d at one of the largest companies in the world and I still learn tricks so I think you're show is good for the beginning tech. Get them on the right way and good to go.
Absolute dedication absolute loyalty+++

[conkilla]

LOL I paused the video when you started using in LED test lamp to comment. Glad I kept watching because you explained exactly what I was going to say about current.

[LN-vsyc]

Im an apprentice atm and i find watching this easier than at school

[michaelrandle]

Man I've been trying to find a good class on automotive electrical diagnostic and this video series has been great. Thank you very much

[nickayivor]

What do you call KNOWLEDGEABLE and SUBSTANTIAL the answer is
Rustbelt Mechanic
Thanks again Please need more
Rustbelt Mechanic
From Nick Ayivor from London England UK

[XxIcybluexX]

Man who ever is going through school anytime after this point is laughing because of these guys and this video series.

[clearshadow]

Thanks dude! This is high level stuff and most people are low level, thanks for this video and making me high level !!!

[rpruneau]

Another good video, but a technical error at 5:35 you stated that amperage gets used up across the bulb which is not an accurate statement since Amperage remains the same throughout a series circuit. The Voltage gets consumed proportionally by each resistor, according to ohms law, throughout a series circuit. Since the bulb was the 2nd resistor of 2 in the series circuit there was only a negligible amount of voltage remaining while reading the negative leg of the circuit. Recall 6 volts was consumed by the 50 ohm resistor and the remaining 6 volts consumed by the bulb. This is why the concept of corrosion or loose connectors or broken wires are so important since they represent resistance in a circuit and cause unwanted voltage drop that will no longer be available for the other loads in the circuit.

[auto_diagnostic]

I completely agree - a multimeter and voltage indicators are the most indispensable tools in electrical diagnostics.

[MarzNet]

Very helpful, excellent work. Studying auto mechanics on my own and making good progress. I actually learned electrical circuits studying Neuroscience in college.

[nickayivor]

Good Afternoon Rustbelt Mechanic take care and have a great day 👍
Thanks 👍 tutorial great 👍 👌
From Nick Ayivor from London England UK 🇬🇧

[tonytooltime]

Great video man!👍 It's All about the Details. Very Informative.

[abdallahsalimtolba]

Thanks so much for the sharing of information

[aliamir]

Thank you for sharing with us the educational app

[vukasinvasiljevic]

When relay is activated it transfer positive from 30 to 87, not negative :)

[TheBekasoo]

The lever in the relay is to connect the tow points with the same electrical pole . The point deginated 30 is positive. When the coil is energised the other point should be positive as well .

[vaughndibble]

The LED can slid you DOWN the wrong hill And the snap on test light will do the same glass fuse style bulb

[cesar]

Great video very informative
Gad bless you

[legitimateballer]

So when doing a voltage drop test, does it matter what lead id on the circuit, and which is on the battery?