'07 4Runner NIGHTMARE! 

I forgot to mention that the idea to ground L4 came from @ ru-vid.com Make sure to give him a new subscriber!

Gotta love the multi layerd problems. Fix this, find that, fix this, find something else, rinse and repeat 😤

Good job but please stop pounding the desk becuse I can hear it on my end. I enjoy watching your videos great job.

Wow really crazy case study

Thanks for sharing.

Great case study, PJ! Some people may have tried to unstick the transfer case with the Tonya Harding 3000 but I’m sure they would have failed. A bizarre case but it was a perfect challenge for your skills!

Thanks for the case study. Enjoyed it.

Thank you PJ. Good job. Have a great weekend.

ACCOMPLISHED Voltage Drop Diagnostics Tutorial great video 👍 👌 👍 thank you Take care and have a great Weekend with all your family around you ACCOMPLISHED Voltage Drop Diagnostics From Nick Ayivor from London England UK 🇬🇧

Wow another good one Pj. Thanks for sharing it.

Great stuff PJ!

Great work man.. keep it up..!

Very good, your really easy to follow, i like that.

The amount of amazing wrapped up in this video is absolutely under-appreciated...Pat, you are always always always doing something that has a HIGH DEGREE of value my friend ❤️ Thanks for continuing to work hard to be the best at what you do brother!

Great case study! I had a 4wd Sequoia with a broken limit switch wire causing the 4wd sequence not to complete and the 4wd light would flash but not fully engage. Major headaches sometimes having to test at 4wd ecu and vehicle on lift etc... Great job with the videos look forward to seeing more.

Sick case study 👍That's 3 very difficult problems to diag combine in one , really making it nightmare.. Still i wonder , if changing the transfer case unit with the actuator would fix the car finally?

now this is one of those where you must know and understand how the systems act together. unfortunately there is no standards so each manufacturer has thier own way of doing the same thing. being brand specific has advantages over the repair shop on the corner

Thank you for a great vidio . Can you please share with me how to make the ligth connections for a tester for my self I’m sorry I just learning through watching your vidios and I love it . I appreciate you

Thats an awesome case study. Man im sure it was super frustrating. The 4 Runner that didnt want to leave lol. The 4low wouldve tricked me up. Great content as always. Thank you

Well edited 👍. Everything made sense.

Craziness, thanks for explaining that internal pull up resistor. Or pull down, I guess depending on if you're looking at it from an ecm logic. Not always knowing those facts about the internal circuitry can really send someone down a deep rabbit hole. I think you did the correct thing though, without finding those bad connectors a new ecm could have been fried and back to square one. Great insight, thanks much

Cool case study enjoy your videos

Nice work PJ! Great case study

Excellent, great diagnostic and explanation , im working on a crazy Toyota land cruiser prado 2014 now , the car had the battery going flat because of a light that the owner forgot on for few days , when they came to change the battery the car wouldn't open with the transmitter , they opened it with the key and the alarm system kicked in , they changed the battery any way and they tried to start ghe car but nothing is working and the theft alarm system keeps kicking in , came to the car to do the diagnostic , key is blinking when you push the transmitter button but nothing is moving in the car , nothing happened no matter what you do tried to push the start button with the key , tried even to make another key by backing up the immo data with lonsdor and the emulator , back up working fine but the touch to start button is not letting me turn the ignition on, and managed to wake the car up with the ignition circuit to do a full diagnostic, all the ecu's are on the line and working perfectly, no dtc's at all , i will be back tomorrow to check if the certification ecu is giving the command for the oscillators and touch sensor around the car to work (the car is equiped with entry and start system) , iam thinking now that maybe the certification ecu is down ! , Everything else seem to be working fine , it's all because the car seem to not know that the key is inside it ! Any idea ? And sorry for the long comment

I absolutely love your videos and derive a great deal of enjoyment from them. I realise this is off topic but I could do with a bit of help. I'm in my late 70"s so it's not worth my while investing in fancy tools. A while back you diagnosed a misfire on a Prius. My Prius '05 has a misfire, is there a way to find which cylinder it is without your sort of tools? I would usually check temperature of the 4 branch, but thats nigh on impossible with the Prius.

Very interesting. Do you know how much time got spent diagnosing this in total?

wow. fantastic

Nice, that definitely seemed like a journey! Even factory information sometimes leaves out critical information sometimes! Did that demo with the power supply use snap circuits?

09 scion xb longer term fuel trims at 10-15% at highway speeds. Any idea on what to look for. Faster I go the higher the Lt trim.

I want to learn how to use oscilloscope, l😢

Helpful vedio

Hello, good morning, I am a follower of your channel and I am contacting you, to be able to comment on the following situation that occurs in my vehicle, Ford mondeo mk2 2.5 v6, one morning the battery was discharged, without knowing how to change the battery, when month or so, the car stopped in full operation, it was as if the electricity had died, stop, giving it and giving it until it started, again as if the battery was without charge, it was only a month old, I changed the alternator regulator , and well, I bought it, it charges over 14.5V, and I considered the fault finished, one day cleaning the interior, I left the radio on, while I cleaned, and nothing a few minutes later, the voltage began to drop, less to less, until the battery was discharged at that moment, I was surprised because that had never happened to him, I did another test, with the battery charged again, I gave the contact, after a short time, equal to less to less , that in a moment the battery goes away, I recharge it, install it, and leave it and connected approximately 2 months, until I realized that the red light of the alarm did not blink, I checked it and discharged, that did not happen in the past either, it carried out the current leakage test with the multimeter, because I told myself that this would have to be a current leak, it is the logical thing to think, and what was my surprise, that the value it gave is 0.02 amps, with the battery just charged, so there is no current leak, I have also performed the voltage drop test and it gives 000v both positive and negative, and then what happens to it? I don't even know what else to do, regarding what I am explaining to you, I await your prompt clarification, please, greetings.

If it was difficult for u, no way I would stand a chance. Was the no start a separate issue, or were they connected?

I have a question if you don't mind. I went to diagnose a 2008 g6. It was a no crank no start. Immediately I noticed pcm wasn't present on the hi speed network. I was able to communicate with everything but pcm. Firsr I check power and grounds and noticed I was missing a power. The power missing was the run crank relay power that is turned on by the pcm. I could bypass with test light from the pcm and turn on relay (run crank) but still no com. Also I noticed my 5vots was grounded (it would light a 750ma test light). I unplugged the pcm and the ground went away. I was about to call the pcm but said ill be back (I had tool malfunctions). Would a shorted 5 volt sensor cause those exact symptoms? 2 test I want to do tomorrow is check com lines at pcm, omhs test (my scope died and I didn't have the charger) and unplug all the 5 volt sensors.

🙏🙏👍👍👍

𝓅𝓇o𝓂o𝓈𝓂 🎊

Being a technician and listening to somebody else explain the situation brings me back to the realization how much I missed points and one ignition wire through one resistor and one coil that could be repaired with a single screwdriver and the paper from your matchbook cover 19 thousandths to set the point gap to get your car running again 😂 but I do not miss those days of having to readjust my points every 12 to 15,000 miles and reset my dwell and timing. And having to change spark plugs every 30,000 miles. 1966 mustang 1970 Ford F1 hundred pick up truck

Excellent demonstration and interesting situation! Thanks for the insights!