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.
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[@humanresource9659]

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.

[@conkilla187]

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.

[@RustbeltMechanic]

Yep gotta watch out for that. It bites a lot of technicians in the @ss

[@jackfrost3560]

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+++

[@michaelrandle6884]

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

[@nickayivor8432]

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

[@clearshadow213]

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

[@nickayivor8432]

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

[@LN-vs8yc]

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

[@MarzNet256]

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

[@auto_diagnostic]

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

[@XxIcybluexX]

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

[@davidkhumalo2267]

Very informative. Thank you

[@tonytooltime5373]

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

[@rpruneau68]

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.

[@salmanmalik3252]

Love you please Continue to help us

[@jerryabc2000]

Very well explained.

[@aliamir8870]

Thank you for sharing with us the educational app

[@abdallahsalimtolba9730]

Thanks so much for the sharing of information

[@cesar25908]

Great video very informative
Gad bless you

[@legitimateballer1236]

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

[@mohyeldeenalhady3094]

Thank you very much

[@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 .

[@sooris12]

Voltage drop is really important on Ford's!

[@vukasinvasiljevic2073]

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

[@vaughndibble4598]

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

[@jameslewis1175]

Thanks for the info... side note that watch looks painful

[@del9936]

Have to stop you at 5:30 when you say the bulb has used all the amperage so the test light doesn’t light on the negative side ,the amperage is still on the negative side as well as the positive side to correct your statement; the bulb has used almost all the voltage that’s why your test light doesn’t light on the negative side of the bulb in the circuit

[@sooris12]

Digital test light or a powerprob is the way to go really.

[@GripFreak]

You essentially proved that a test light is useless for electrical troubleshooting. When using a test light you are always working under assumptions and unknown variables.

[@oualidaouida2619]

30 is positive to positive at 87

[@scientist100]

Throw away the LED light tester.

[@raymiller8994]

Use a head light

[@adamdonnay]

You really have to pay attention to what this guy is doing because he leaves out a lot of key information

[@raymiller8994]

You never wsnt to use a test light. Use a headlight

[@tombudd6218]

A shit test light , why LED ?