Troubleshooting a No Start, No Spark, No Fuel, No Com (any car)

Stay tuned for a video update.

In this video I will walk you through a no start, no com using the 5 volt reference circuit as a guide. We will also cover voltage drop testing, why a loaded circuit is important as well as standard relay testing that everyone needs to know. These testing procedures are not car specific and can be applied to anything!
This is a 2006 Lincoln LS.

Tools used
- Bayco NSR-2168B LED Rechargeable Work Light
- OTC 3893 Genisys Encore

On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere!

Disclaimer:
Due to factors beyond the control of ScannerDanner LLC, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. ScannerDanner LLC recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of ScannerDanner LLC, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not ScannerDanner LLC.

[edchobot]

Most shops today just keep replacing parts until they find the problem. You sir are a true troubleshooter. Great video.

[petersonbalavoirjeanbaptis]

I'm your student from Haiti.and I enjoy watching your videos carefully, plus every words will come out of your mouth are from a good pro and teacher.and i feel so great when im watching you teacher

[tradekingdistributing]

Amazing. You are single-handedly creating an army of automotive diagnosticians. Imagine what the world would be like if every single person was able to find their life's true calling like you have, Paul. You are truly a gift from God to the rest of humanity.

[sanctealphonse]

I love it when you have your students around asking questions and you address them on the video since it's kind of like they're representing all of us less experienced guys and they're asking questions we would ask. I hope you do more like this...

Thanks for the videos!

[josealers]

Just finished a crank no start on a Toyota Tacoma 2003 with a 2.7l engine. No communication with my scanner. So I Dannered the vehicle. Check for 5 volt ref and found low voltage. Checked tail relay and it was defective. Replaced and problem fixed. Another one bites the dust. I learned this from the man .Paul Danner and his awesome teachings. Thank you once again . Jose from Puerto Rico. Scanner Danner Premium is a must.

[gixxercorona]

Don’t think mr danner fools about, even the fact you teach your experience online, have a few students standing at your shoulder with the odd comment of curiosity, you just roll with your diagnoses, it’s great to watch and even you have pride to double check what you say is honesty, to many people out there go for the quick change ( every part scenario till it’s starts keep up the the great work👍🏻 the world is watching a master 👍🏻 keep on rolling sir, all the best from the uk 🇬🇧

[jeffhesse]

What a valuable lesson! Checking 5 volt reference has saved me alot of time. Never trust a relay that clicks. Someone replaced a lot of parts because of a bad relay. 30 years in the business and I'm still learning new techniques. Great video Paul. Thanks for sharing.

[richmhwd]

This is a perfect example of real world symptom and diagnosis . The fact that you stopped after repairing initial complaint shows that you are a money making machine .
Great video that can show what ALL auto shops need to do .

[stefanhinks]

I have been a mechanic off and on for the past 23 years. Electrical diagnostics has always been my weakest link, yet just watching this video alone has made so much sense that I can't believe I didn't "get it" beforehand. I am acutally contemplating looking into your online courses because I can obviously learn really well from your teaching methods. I want to thank you for the time and effort you put into your work, and you have every right to be very proud of any mechanics/technicians that you put out there in the workplace. Again, thank you.

[josealers]

4 am . Online just to watch SD. It's not the camera It's the content that's great. Thanks again SD.

[HomieHektor]

A TON OF VALUABLE INFORMATION IN THIS VIDEO. PAY ATTENTION TO SCANNERDANNER, HE'S NOT GIVING US B.S.

[Ryan-wfmn]

I would love to be your student when you are troubleshooting! This is exactly how good mechanics are made. Using your head and truly understanding what is happening with components one by one and ruling out unnecessary tracing, saving time, which in turn makes you more money! I’m glad I found your videos bcuz I live for this stuff, thank you!

[mdlm]

I went to a trade high school for automotive and the way you teach and allow students to tag along as you diagnosis is awesome! That's invaluable. I wish my teachers would have done this.

[paulbevan]

Hello from England. I'm a newbie to your channel and I like what I see. Your a brilliant teacher! and I find myself glued to the computer whilst watching you diagnose none starters like the car in this video. Im not a mechanic, just an old bloke with old school interests in mechanics. Keep up the great work, Im hooked. :-)

[richardostrowski]

Great video Paul. What the consumer DOES NOT understand is the fact that the Tech/mechanic needs both the TRAINING and TOOLS in order to do a proper diagnosis. You can't have one without the other. Training and Tools cost money, you NEED to recoup your money or you will not be in business for very long. This is why you/we charge what we do. Yes, it took me 5 minutes to find the problem, but I did find the problem. No PARTS cannon was used. Keep up the good fight.

[pulseofthemaggots]

Scanner Danner is such a good mechanic its scary

[damionnanan]

Coming from a different technical background being civil engineering I am always fascinated with electronics and how things work. I find your videos very educational and inspiring as it teaches non electrical guys like myself how to tackle a problem by just applying basic knowledge together with technical data to trace and rectify the problem. Thanks as well for explaining why relays need to be check loaded rather than just pull it and looking for voltage. Finally you also taught me that not having a 5 volts reference is a clear indication that something is wrong along the circuit and a bad sensor can cause potential problems by pulling down the whole system causing a no start problem. Oh one more thing checking your fuses and relay once you have 5 volts reference is a key piece of information to ensure the circuit is functioning as expected. Great video and thanks again for teaching us how to analyze and fix potential problems with no start issues.

[BigDog]

This was actually "premium" material. Good job Danner.

[j.c.smithprojects]

i really enjoy electrical problems. i can hear the excitement in your voice as you are "on the hunt". makes it very exciting for your students. i use a primitive way of checking load and control side of relays....i use jumpers that allow me to check voltage, ground and load amps...same result just with a home made jumper...sever pins sizes also. great video. really enjoyable. loved hearing the students getting involved and thinking through it!

[clarkgarber]

I love it when a customer gets the bill and says you just replaced a relay! Like when I charge for an EVAP test (I charge a test fee for machine plus labor to inspect and repair) and they say you just replaced a gas cap! They have no idea what it costs to run a full service automotive shop. We need to be paid.