This just helped me get a customer out of heavy traffic. Same issue, 2007 Prius cut out on a main road, blown AM2 fuse. Put a new fuse in and blew straight away. Unplugged the inverter pump and drove it to a side street so a tow truck could take it for repairs.
Thanks for the circuit breakdown and mostly thanks for EDITing out some of the time looking around that we don't need to see, just show us the important items and locations, much appreciated.
THIS IS WHAT WE REALLY NEED TO SEE,,, I UNDERSTAND EVERY TEST YOU MADE AND EVERY STEP YOU TOOK SERIOUSLY I COULD HAVE THIS SEEM PROBLEM ON A DIFFERENT VEHICLE A FEW MONTHS DOWN THE ROAD AND I STILL WILL BE ABLE TO FOLLOW THIS DIAGNOSTIC PROCEDURE . THAT'S BECAUSE YOU STAYED ON A FOCUSED TRACK AND MADE IT CLEAR WHY YOU WERE MAKING THE TESTS . FOR A DIAGNOSTIC PROCESS THIS GOOD THIS SHOULD HAVE BEEN IN 1080HD OTHERS THEN THAT YOU'VE GOT YOUR SELF A UA-cam WINNER 👍👍👍👍👍👍👍👍👏👏👏👏👏👏👏👏👏👏👏
Good stuff. Going through in great detail is much appreciated and what is missing on most wrenching videos. Keep this type of content going and I see this channel getting huge. Quality video!
I'm new to your channel, ao I don't know if you use that format often but I really liked it. It felt more like we were there while it is happening and we are witnessing the thought process as it unravels rather than having an already done diag. explained.
Wonderful very educative videos. I like your thorough approach to most issues. Very practical. Nice explanation of why you use what you use to get round the issue. Fantastic approach. I should have subscribed earlier and alerted most of my other fellow Techs... it is never too late as we learn every day. Thanks and you have one more follower for now but let me alert the rest and we see what happens.❤
Great job Thank you! I prefer to use a light bulb to find a short but this is another excellent option especially when it's not constant and you have to drive to get it to happen.
Great stuff. I use 21watt bulb across fuse terminals and amp clamp but only have 2 channel scope but always get there in the end . Bright light short dim all good depending on load .
Was it the AM2 fuse? I had the same. Inverter coolant pump went bad blowing the fuse. Disconnect the pump and replace the fuse. Should be able to get a short distance with it. Replacing the pump is a relatively easy process for a DIYer.
I knew from beginning it will be inverter water pump coz using this car from long time and almost know every little bit of this great car but not surely for diy users.great and detailed explanation sir.cheers
With this video and some equipment I have, I feel I could have figured out why my old 2012 Chrysler town and country was blowing a fuse. Sadly a deer took her out a couple years ago. Great content!
Nice work mate. One trick if you only have a 2 channel scope like I do would be to isolate the other things by unplugging them, had you unplugged the coils and injectors and had the pump running with the scantool this video would have only been 15mins long..
You are a excellent diagnostician! Watched your video on the Ford with the parasitic draw that turned out to be the ignition switch. (showed in Acc when off and Power relay was hot with the thermal image cam) You demonstrate an incredible talent which leads me to a very serious question. you see I too share the same talent yet I struggled terribly in school. Trouble with reading and spelling which I still deal with today. Trouble with being ??? teacher always said distractred. Sadly my father refused to honor my mothers request to have me tested for what was then called a learning disability. Now many years later I have been diagnosed as dyslexic. Yet is funny as it is, my dyslexia turned out not to be a disability at all. It is a blessing and why I have the talent. By chance did you have any issues in school yourself? Would love an answer. :)
Can I come n visit on my way to c son in Florida, so glad I found ur channel, u folks r amazing, so glad u call naturally aspirated A engine, thanku, I tell other channels what r u gonna call a tesla a engine or a drive motor. Sry for rant
depending on the complaint if i feel its possible for a blown fuse to create the problem i check all fuses in all boxes first some of the youtubers say shouldn't be done that way. and yes i understand if its a blown fuse i need to figure out why the fuse blew. like a blower motor if it doesn't work on any speed i check fuses first if it runs on high i know motor is good. lets say i install fuse blower runs then check to see how much motor is drawing to see if thats the reason fuse blew. i see so many test and test to find blown fuse i just start there on most cases.
The inverter water pump? Is that a voltage inverter connected to a motorized pump? Is the inverter a sine wave inverter. What is the voltage required to power the pump?
A little curiosity is getting the better of me and I wonder if any Toyota techs could explain how the inverter water pump works and what it does. I used to always assume the pump was there to give you heat and HVAC functions while the engine is not running. However, the fact that this pump and the engine obviously were running at the same time leads me to believe this assumption may be false. Anyone know more than I do?
The power inverter, which is in the large, silver-grey box in the engine compartment in front of the driver, in a Prius creates quite a bit of heat, so, any time the car is turned on the inverter's cooling system runs to keep it from overheating. That pump, which sits below the left headlight, is what circulates the inverter coolant. It is separate from the car's HVAC system (although the engine coolant and inverter coolant do share the radiator). If you remove the cap from the inverter coolant reservoir (next to the inverter box) while the car is turned on, you can see the coolant "stirring". It's a great way to see if the inverter coolant pump is actually working. If the coolant pump fails the Malfunction Indicator Light (MIL), which appears as a large, red triangle on the dash, will normally illuminate.
@@rc4211 That is a very good and informative answer. I did not know there were two separate cooling systems, one for the HVAC and one for the inverter. Is there also cooling for the HV batteries in this vehicle? I have seen some models use coolant to cool HV batteries, and I have seen air blowers used to cool them.
@@kdmq In the second generation Prius, which is the model shown in this video, the traction (HV) battery is air cooled. The blower is located inside the car above the right rear wheel well, behind the liner panels. The blower is connected to the traction battery using black plastic ducting to the right hand side of the metal battery casing.
As we said below. We really had no idea whatsoever. It’s up to you whether you’ll take our word for it. We haven’t said it again since. Keep in mind the person who edits all videos grew up doing service advising and now runs the shops, but isn’t a technician by any means. He doesn’t just sit around and watch videos like Diagnose Dan like techs would.
I’m glad you do these videos, gives people the chance to see what diagnosing their car takes, and your not just plugging in a computer to fix it.
This just helped me get a customer out of heavy traffic. Same issue, 2007 Prius cut out on a main road, blown AM2 fuse. Put a new fuse in and blew straight away. Unplugged the inverter pump and drove it to a side street so a tow truck could take it for repairs.
Multiple sources of information to triangulate on a fault. Love this video it’s excellent.
Thanks for the circuit breakdown and mostly thanks for EDITing out some of the time looking around that we don't need to see, just show us the important items and locations, much appreciated.
Almost thought it was a Diagnose Dan video
Thanks man. I like the way you teach man. It's easier to absorb the knowledge from you than the others I like. Can't ever learn enough.
Outstanding lesson ! Thanks for letting us benefit from your expertise !
THIS IS WHAT WE REALLY NEED TO SEE,,, I UNDERSTAND EVERY TEST YOU MADE AND EVERY STEP YOU TOOK SERIOUSLY I COULD HAVE THIS SEEM PROBLEM ON A DIFFERENT VEHICLE A FEW MONTHS DOWN THE ROAD AND I STILL WILL BE ABLE TO FOLLOW THIS DIAGNOSTIC PROCEDURE . THAT'S BECAUSE YOU STAYED ON A FOCUSED TRACK AND MADE IT CLEAR WHY YOU WERE MAKING THE TESTS . FOR A DIAGNOSTIC PROCESS THIS GOOD THIS SHOULD HAVE BEEN IN 1080HD OTHERS THEN THAT YOU'VE GOT YOUR SELF A UA-cam WINNER 👍👍👍👍👍👍👍👍👏👏👏👏👏👏👏👏👏👏👏
Love your technique! I can tell you’ve debugged a lot of real issues just by how you attack investigation! Love this video!
Good stuff. Going through in great detail is much appreciated and what is missing on most wrenching videos. Keep this type of content going and I see this channel getting huge. Quality video!
I'm new to your channel, ao I don't know if you use that format often but I really liked it. It felt more like we were there while it is happening and we are witnessing the thought process as it unravels rather than having an already done diag. explained.
We do a little bit of both just depending on the day and the circumstances. We liked this one as well. Thanks!
I hope you keep doing diagnoses video. I am getting a better understanding by your teaching technique.
Love this guy man I need to work beside him for a few hours…..
Wonderful explanation and professional tools 🧰! 👍
Three screens and a scan tool, pretty baller.
Wonderful very educative videos. I like your thorough approach to most issues. Very practical. Nice explanation of why you use what you use to get round the issue. Fantastic approach. I should have subscribed earlier and alerted most of my other fellow Techs... it is never too late as we learn every day. Thanks and you have one more follower for now but let me alert the rest and we see what happens.❤
Great job Thank you! I prefer to use a light bulb to find a short but this is another excellent option especially when it's not constant and you have to drive to get it to happen.
NOT THAT I WILL EVER WORK ON AN ELECTRIC/GAS CAR THIS WAS IMPRESSIVE(GOOD JOB WOOD)
you can't imagine how much you are helping diagnostic strategy for us
thank you so much professor
Great stuff. I use 21watt bulb across fuse terminals and amp clamp but only have 2 channel scope but always get there in the end . Bright light short dim all good depending on load .
What 2 channel scope do you have ? I always recommend the 4 channel micsig SATO1104 scope
@@thesmartguy3523 I have a picoscope
@@thesmartguy3523micsig, Is a gun.very good scope.
Thank you very much for the helpful information video
👍
QUICK-WITTED Royal Auto Service
From Nick Ayivor from London England UK 🇬🇧⏰️ 21:59pm
Was it the AM2 fuse?
I had the same. Inverter coolant pump went bad blowing the fuse.
Disconnect the pump and replace the fuse. Should be able to get a short distance with it.
Replacing the pump is a relatively easy process for a DIYer.
Wow that's very helpful I'm not a mechanic by trade but I do work on cars and my own racer so things like this is something I never knew about
Solid work Professor. I love my fuse saver kit. Excellent work using the tools and following the data.
I don't understand , why , a minie fuse controls too many circuits , I really like your diagnostics approach , and procedures .
Great video sr.👍
This channel needs more subs! Excellent job!
Amazing diagnosis. Thanks for sharing valuable information. Much appreciated.
For the circuit breaker, I do the same thing always us a lower Amp breaker to be safe
I knew from beginning it will be inverter water pump coz using this car from long time and almost know every little bit of this great car but not surely for diy users.great and detailed explanation sir.cheers
With this video and some equipment I have, I feel I could have figured out why my old 2012 Chrysler town and country was blowing a fuse. Sadly a deer took her out a couple years ago.
Great content!
The deer didint like your car
awesome video , great use of scope , good job
Excellent video. Great scope work
Another great job. Awesome work guys.
Nice work mate. One trick if you only have a 2 channel scope like I do would be to isolate the other things by unplugging them, had you unplugged the coils and injectors and had the pump running with the scantool this video would have only been 15mins long..
What and amazing diagnostic video guys thanks so
Much for sharing 👨🏫👨🏫👨🏫👨🏫👨🏫
Can't wait see you guys work on fully electric (BEV) cars wearing Arc Flash Suits 🙈😄 Good job 👍👍
Top video again. I'm learning a lot from you guys. Keep it up and thanks for sharing.👍👍
You are a excellent diagnostician! Watched your video on the Ford with the parasitic draw that turned out to be the ignition switch. (showed in Acc when off and Power relay was hot with the thermal image cam) You demonstrate an incredible talent which leads me to a very serious question. you see I too share the same talent yet I struggled terribly in school. Trouble with reading and spelling which I still deal with today. Trouble with being ??? teacher always said distractred. Sadly my father refused to honor my mothers request to have me tested for what was then called a learning disability. Now many years later I have been diagnosed as dyslexic. Yet is funny as it is, my dyslexia turned out not to be a disability at all. It is a blessing and why I have the talent. By chance did you have any issues in school yourself? Would love an answer. :)
That’s why I always drive up the road never down the road 😂😂😂
Can I come n visit on my way to c son in Florida, so glad I found ur channel, u folks r amazing, so glad u call naturally aspirated A engine, thanku, I tell other channels what r u gonna call a tesla a engine or a drive motor. Sry for rant
The Bob Ross of engine care.
depending on the complaint if i feel its possible for a blown fuse to create the problem i check all fuses in all boxes first some of the youtubers say shouldn't be done that way. and yes i understand if its a blown fuse i need to figure out why the fuse blew. like a blower motor if it doesn't work on any speed i check fuses first if it runs on high i know motor is good. lets say i install fuse blower runs then check to see how much motor is drawing to see if thats the reason fuse blew. i see so many test and test to find blown fuse i just start there on most cases.
Is that Bradley Cooper's dad? Great videos, very educational.
Love this type of content.
Thanks for posting.
great job, I enjoyed watching your video ❤
Good job.!!!👍
Amazing never seen anything like this, really interesting & informative case study👍
Thanks for filming & sharing this one Professor😍
Stay Safe👍
Another great one
Good work sir 👏
Great video ese
Tanulságos,jó videó csak így tovább!
The inverter water pump? Is that a voltage inverter connected to a motorized pump? Is the inverter a sine wave inverter. What is the voltage required to power the pump?
Awesome video
Enjoy your vids
New subscriber.
Great teaching!
What does Toyota mean by "Synergy drive"?
What was the smoke from when the car first died? Lol the look on your face when you seen the smoke
Can we see a full walkthrough of an evap leak diagnostic? Some of us still struggling out here LOL
We got you!
i forgot to say typically it would be the cluster causing the no start / no run oddly enough
Amazing channel! Love it!
Cant you use a power probe hook and set circuit breaker rather than that kit with all that crap?😜
Nice
Grasias
Coolant pump shorted. Very common
A little curiosity is getting the better of me and I wonder if any Toyota techs could explain how the inverter water pump works and what it does. I used to always assume the pump was there to give you heat and HVAC functions while the engine is not running. However, the fact that this pump and the engine obviously were running at the same time leads me to believe this assumption may be false. Anyone know more than I do?
The power inverter, which is in the large, silver-grey box in the engine compartment in front of the driver, in a Prius creates quite a bit of heat, so, any time the car is turned on the inverter's cooling system runs to keep it from overheating. That pump, which sits below the left headlight, is what circulates the inverter coolant. It is separate from the car's HVAC system (although the engine coolant and inverter coolant do share the radiator). If you remove the cap from the inverter coolant reservoir (next to the inverter box) while the car is turned on, you can see the coolant "stirring". It's a great way to see if the inverter coolant pump is actually working. If the coolant pump fails the Malfunction Indicator Light (MIL), which appears as a large, red triangle on the dash, will normally illuminate.
@@rc4211 That is a very good and informative answer. I did not know there were two separate cooling systems, one for the HVAC and one for the inverter. Is there also cooling for the HV batteries in this vehicle? I have seen some models use coolant to cool HV batteries, and I have seen air blowers used to cool them.
@@kdmq In the second generation Prius, which is the model shown in this video, the traction (HV) battery is air cooled. The blower is located inside the car above the right rear wheel well, behind the liner panels. The blower is connected to the traction battery using black plastic ducting to the right hand side of the metal battery casing.
Is the battery still in it
wrenched at toyota for 6 years, we saw this now and then.
Would an inferred camera worked to see heat as amp rises?
Yes it would.
Yes absolutely!
how many miles??
Maybe go to a connector and disconnect it and see what the fuse does
👍👍
Gotta close that door man that beeping hahaha
Darn it I know the answer!
You need an original slogan, Lets diagnose this together is taken by DiagnoseDan
Lol wasn’t aware of that. It’s not our slogan. Just put it on this video. Sorry Dan!
i agree 😂.
Someone tried to steel it 🤣
What's with the wild hair,shocked from England
Too bad those tools are high end , and top of the line ; I don't think this approach , and use of those high tech tools , are for a regular DIY .
Listen I love this channel but can y’all edited these videos more? Holy yapperton…
WOW, stealing Dan's catch phrase,
The shame of it all
As we said below. We really had no idea whatsoever. It’s up to you whether you’ll take our word for it. We haven’t said it again since. Keep in mind the person who edits all videos grew up doing service advising and now runs the shops, but isn’t a technician by any means. He doesn’t just sit around and watch videos like Diagnose Dan like techs would.
Why it's blowing something happening this is where I need More experience because so many things connected these cars
Kiss
Love the content… I use the bulb method to check for shorts 🫠