Lexus Hybrid system Fix

[@Diagnosedan]

For Diagnosedan TSB used in video; DDTSB.COM Scantool used in video discount: Launch X431 PAD V ECU online programming scanner Discount code KBTNGLWS to save 40% Promotion price $2149.3 after coupon code www.amazon.com/dp/B092LYKYF5/ End 8th July ----------- Global link bit.ly/3v0VP9L Ask a question about the scantool bit.ly/3gbJtaR

[@supermarketsweeps]

ddtsb does it just cover common problem , is there wiring diagrams etc , demo does not really show me much , have you got any video showing it beening used and features

[@Diagnosedan]

@@supermarketsweeps kzbin.info/www/bejne/gGfCqZamZb16b8k

[@PedroGonzalez-yr6xd]

@@Diagnosedan Hello how are you I am interested in purchasing the annual access. But I can't do the subscription for ONE year. Since I am from Mexico and the entire American continent is not considered. Only United States of North America. Which there are also technicians in Latin America who seek information and help from other countries and websites. There is something very important that large companies FORGET. THAT SPANISH IS THE SECOND LANGUAGE MOST SPOKEN IN THE WORLD AFTER CHINESE. AND THE MONEY FROM SPANISH SPEAKING COUNTRIES ALSO HAS VALUE. SINCE OUR CURRENCY IS CHANGE TO DOLLARS, EUROS, POUNDS, RUBLES ETC.

[@SuperiorBettingTips]

You are mostly based on european cars yet I cant find anything about Peugeot, which is very common car manufacturer in EU. I have Peugeot 308 with 1.6VTi engine (same engine is build in MINI also) , and it is very specific engine with lots of things that can and do go wrong. So it would be very helpful if you make one video about that engine. What can we do about oil consumption (some says replacment of the PCV valve solves the problem but I kinda do not believe in that statement).

[@rondhole]

I did not see much toyota/lexus video in your channel. I think it is also related from the fact that they are rarely having problems.

[@htownblue11]

Well done yet again Dan! I had this vehicle and had this exact problem. Had I Not had a Lexus Tech on a forum tell me about the fan issue, I wouldn’t have been able to fix it. DDTSB diagnosed it in 30 seconds. If I was a pro mechanic, I’d jump on a DDTSB membership. Diagnose Dan = World class expert diagnostician. Facts.

[@Diagnosedan]

Thank you very much!

[@jamesbroomfield7799]

Did you just replace the fans?

[@htownblue11]

@@jamesbroomfield7799yes. Fixed my issue.

[@moeflores2358]

Dan you are the Man ! I have a 2008 Lexus with the same issues ,you have given me the answer I needed without having the dealership drain my wallet . Thank You Again Dan your the best!

[@ikocheratcr]

I wonder how much suffering the guy that discovered this fault went thru to create the bulletin. Great video, and love the part about DPF. I can only wish that where I live was obligatory, no car has it.

[@Diagnosedan]

It's very time consuming to find faults like this. Can take alot of time to figure this out!

[@dinu.p]

Thanks for the DPF segment - it's a love-hate relationship but it's there for a reason.

[@basaalex3209]

I would like to see the same measurement, but while the car does the dpf regen procedure.

[@AlessandroGenTLe]

@@basaalex3209 same here! As I wrote upper, it happened to me to drive my motorcycle behind few new cars that were (supposedly) doing the cleaning and I was suffocating...

[@gulag8735]

@@AlessandroGenTLe the regen stinks

[@Diagnosedan]

Yes they are not there for no reason

[@Diagnosedan]

@@basaalex3209 i might do that in a future video

[@obsoleteprofessor2034]

One of the MIT open course engineering videos demonstrated what "noise" would do to a chip that is looking for s clean "yes/no" (1 or 0). The data sheets for semiconductors give you the tolerance for each particular chip. "0 or NO" may be from zero to 1.8 volts. "1 or YES" may be from 3.5 to 5 volts. If voltage spikes (static) are introduced into the line, the voltage may drive past the point where the chip goes past the tolerated voltages and the receiving chips don't understand what the transmitting chip is trying to say. Odd that all 3 fans failed at the same time. It could also be that the failure of one fan would not produce enough noise to drive the communication past the "threshold of misunderstanding", but once the 3rd fan failed, it was too much noise for the communication line to tolerate. If these fans have brushes, sparking will eventually occure as the brushes, commutator and bearings wear. Side note: My cousin worked in the Silicon Valley in the early days. He told me that a big part of the code written for any program contained tons of fault checking and data verification, ie, did you put in a number where a letter was required..did you enter that you were 20 feet tall and weighed a kilo (etc, etc). Dirty connections, broken wires from too much twisting, kinks, etc caused many communication problems. The "hand shake" contained tests of communication. Good video...showing the on/off waveforms illustrated the problem very well. I will post the MIT to this if I find it.

[@danthemann6565]

Why not try a capacitor Network to reduce the noise the fans are producing?

[@danthemann6565]

In other words, parallel the right capacitor with the fans to reduce noise

[@Diagnosedan]

Thanks for the great comment, i'll do an update when i've examined the old fans

[@go5582]

hi professor, please continue to comment your digital theory's behind the digital issues. great comment and well, easy to understand. thank you .

[@vidselih]

@@danthemann6565 Hi, yes, a noise filter would do the trick, a simple LC (or a snubber circuit, or both) would "swallow" the noise created by the fans. And probably cost peanuts compared to three new fans.

[@kevinbain4361]

Dan, excellent diagnosis. It demonstrates that as independent diagnostic techs we need access to OEM tech info. It would have been interesting to see if there was any freeze frame data available with the DTC to see if it showed the battery cooling fans were commanded on at the time the DTC was logged. Would also have liked to see the current trace on the scope of the old fans verses the new fans could reveal any back EMF or perhaps some AC voltage leaking on to the DC circuit. Just thinking out loud here.

[@letmein2460]

Brilliant again! I wish there were more people like you who really knew how to fix things instead of acting like they know when they are only voicing their opinion on how to fix the problem. This is why you get these jobs because the parts canon has sometimes been used and the problem still exists. Great job again, per usual. Even though you are Dutch your English is superb so congratulations on your Multilanguage skills. I have barely mastered English and this is the only language I have ever spoken!

[@Diagnosedan]

🤣🤣 thanks for the comment Robert. most people in English speaking countries only speak one language. In Holland most people spreak 2/3 languages. But than again English is the Global universal language.

[@JohnIsett]

Ok, Dan! I've added a new word to my vocabulary: "squentimeter". Love it! Keep up the great work!

[@sebastiaan5111]

Yes that’s a nice one. Only thing wrong is cm3 stands for cubic centimetre.

[@Diagnosedan]

🤣🤣🤦

[@onepalproductions]

These are like murder-mysteries for me. The "victim" is the car, and detective Dan will try to uncover the culprit. Who will the murderer be this week, an evil CAN bus, a sick sensor? Stay tuned to find out.

[@Diagnosedan]

The Car survived🤣

[@swaggyme]

do more hybrid videos! i have a hybrid that will not start due to the hv system but it was working perfectly fine a week ago. i seen your other videos as well and they’re very informative and I enjoy watching them. keep up the good work dan!

[@hultgrenjakob7065]

One of THE best if not THE best KZbinr car tech.

[@marcs5960]

Just goes to show you, knowledge is power. Great job again Dan

[@Diagnosedan]

Thanks Marc

[@DanTodmto2]

Thank you Dan. my 2006 RX 87000 miles had exactly the same problem. you are an amazing and excellent professional.

[@AndyDento21]

I have been in the trade 19 years now and I'm always learning new things. So glad I found your channel.... I used to work for Citroen/Peugeot so I was intrigued by the video you did for the 208 Peugeot you did with the Cracked cat.... I have some good information in regards to common faults on that particular engine. AND also the 1.6 EP6 engine... If I could pass on that info to your DDTSB. Just let me know.

[@Infiniti25]

Peugeot/citroen - my sister had a 1996 Peugeot 306 that I learned to drive in and she always said French cars are crap for electrics and brakes. How are those two items in your experience? I did end up getting a year 2000 Peugeot 306 as my first car and also had a 2004 Peugeot 307 estate. I found I was less impressed by the suspension than brake issues but the 307 did have a COM2000 unit issue which was under warranty thankfully.

[@PineHollowAutoDiagnostics]

Hybrid time! Thanks for the video Dan! Now what exactly is defective about the old fans??

[@realdamageboy]

I gues, the bearings is gone on them, turning get's worse and rotor contacts goes sparky, sparks create heawy noise and load induction on all wires nearby.

[@Tininppa]

only 90t km on those blowers... so you need to change them every 3 years if you use the same motors... or are there some changes in the new ones. Some dc motors make carbon dust and start to make weird things but are these more ac motors whit own controllers? i hope those motors are still in warranty

[@celeron55]

I would guess they are DC motors and the brushes or commutators are gone.

[@CALVINLNIKONT]

@@realdamageboy ALL 3 FANS WENT BAD AT THE SAME TIME???

[@williegillie5712]

I’m surprised they aren’t running brushless motors. It would have been interesting to see a resistance check on each of the motors.

[@rjs198585]

Hi Dan. Do you know the reasons why the appear to be working fans gave faults on the car? As you didn't explain this. Thanks!

[@mrb1864]

A collective TSB system is the holy grail of more efficient repair on modern high tech vehicles . It the advantage of a brand/model specialist but that knowledge/information across almost all brands with a knowledge base that growing at rapid speed & lot of brilliant minds solving the normally unsolvable in minutes .

[@garethedwards2883]

Thanks Dan for another great video as I find them really interesting because you explain them so well. Amazing that a bit of electrical interference from the cooling fan can affect the signal on the data bus.

[@Diagnosedan]

Thanks for the comment Gareth it's appriciated

[@joerenton8499]

Thank you Big Dan for taking the time to make these videos, so interesting and we are all learning from your years of study and diagnosing. Cheers from us lot out here.

[@Diagnosedan]

Thanks Joe!

[@darkiee69]

Brushed motors running the fans, and the brushes have worn out causing sparks and static "noise"

[@wernerfritsch6436]

Agree. I guess the new fans have EMC-filters added.

[@darkiee69]

@@wernerfritsch6436 Or brushless motors.

[@rad8825]

@@darkiee69 More likely they'll just wear out the same in 10 or so years (if the car is still on the road).

[@OldePhart]

The way they came to a stop they looked like brushless PM motors. Like the ones in your computer. Can't argue that the fans did it but I'm not certain there are brushes in there. Manf would not want anything that sparks near the batteries. Would love to tear them apart and see if they have any filtering on the supply wires.

[@edwinvandeoudeweetering2162]

@@OldePhart Could be some faulty condensators in the blower motors if there's a filter inside ? No idea why the motors else would give the noise on the line......

[@nelinhomanuel5504]

To have the right info is very important. DDTSB team you have been doing a great job.

[@Diagnosedan]

Thanks we are working hard!

[@slinkos]

I would have never tought that all 3 fans were failing. If I see that all the fans cause the problem I would think that is has to be something else. But this proofs that that isn't the case.

[@johnmehaffey9953]

Dan once again you have educated and entertained me at the same time, love your diagnosis very knowledgable

[@lolipopdeck3694]

Dan your channel one of the best channels in youtube it theached me a lot and im going to start a diagnostic course to be a diagnostician because of ur vids my dude So dose the launch 431v+ have what you call a genaric mode and is this device any good Your the only one im going to take the word from 🤷‍♂️ Even if you don't see this comment thank you dan💙

[@Diagnosedan]

I see your comment😁 the Launch is a good tool, but like every scantool it's not perfect. But for the price it's great.

[@VashthStampeede]

I'm glad you were finally able to pronounce square centimeter, but it's really measured in cubic centimeters. Nonetheless great and informative video Dan. Thanks.

[@volvo24091]

Dan where are you? We need new videos. You are the man.

[@Krillekris]

One of the best car diag channels on KZbin :-)

[@Diagnosedan]

Thank you very much it's appriciated

[@abdulh9687]

DDTSB is the best. Great video, I always try to guess what the fault may be at the start of the video; would never have thought it was the fans. every day is a school day.

[@Diagnosedan]

Thanks!

[@mrbigvanlife7130]

Hell yes ! A double of fix of Dan and then South Main Auto tonight - perfecto!

[@Diagnosedan]

🤣🤣👍

[@go5582]

Dan you really are a great technologists. you give the purchasing power to go out and buy a car , I've been without a car since 2007. I want a fullly electric car from Hyundai.

[@Diagnosedan]

That's great!

[@4l5m6e1n]

Damn! I wish all countries would require that diesel gas analyzer! Imagine how much cleaner our air would be... and how much healthier we would live! Thanks for great info Dan!

[@Diagnosedan]

Not all countries in the world seem to care as much as we do , also this equipment is not cheap so it might be out of reach in some parts of the world

[@That1guyfromCO]

How does the scan tool turn the fans on and off, if the fans cause a no communication fault? I hope that makes sense... during the times when the network had all that static from the fans, how did the scan tool turn the fans off?

[@Diagnosedan]

Ha good point. The fans are also connected directly to the Hybrid control unit with a direct single wire. The only thing affected was the can comm. between the Hybrid control unit and the Battery contro unit. Communicating with the Hybrid control unit was still possible

[@dalehamlin7383]

I continue to be amazed at your level of diagnostic skills.........Would love to see more videos on Hybrid vehicles. I have a 2008 Ford Escape Hybrid. It's very difficult to find accurate information for this vehicle. Thanks again for your great teachings!

[@Diagnosedan]

You are welcome Dale!

[@beforedawn]

I came here for the hybrid but wow how I enjoyed that discussion on DPFs. Thank you.

[@simonsackett]

Man's got a completely separate hand wave for every syllable! :)

[@Diagnosedan]

🤣🤣👍

[@nicknicu1787]

What do you think inside the fan motors is disrupting the signal? Because I’m thinking they’re simple DC motors just like a cabin blower motor… Wear on the motor causing higher amperage? It would’ve been really cool if you had tested the amperage on the newer motors compared to the old! Are they variable speed motors,do they have a built in resistor that controls the speed of the fan? Thanks for the video! 👍

[@Diagnosedan]

I'll do an update when i've examined the old fans

[@Stefan.Georgievski]

It looks like theyre not balanced really well causing vibration and premature wear, would like to hear why they failed

[@AlessandroGenTLe]

I'd really like to see what the particle counter has to say while the DPF burns the particles in one of its cleaning cycles. It happened to me to drive my motorcycle behind few new cars that were (supposedly) doing the cleaning and I was suffocating...

[@lordjaashin]

how can you know that a car in front of you on the road is cleaning its DPF?

[@AlessandroGenTLe]

​@@lordjaashin Well, unless they were all "new cars - meaning new models - with engine destroyed", they started to emit white smoke with a bad smell (not like a burning oil car) for some time, and stopped after like 2/3 minutes. Like this: kzbin.info/www/bejne/imi7m3WXlJ6inZI or like this: kzbin.info/www/bejne/baKsmWiGpsqJp68

[@lordjaashin]

@@AlessandroGenTLe tbf that doesn't look like normal dpf regen. theres white smoke coming out from the front wheel arch in first video. DPF regen doesn't cause that. AFAIK DPF regen occur at 2.5k rpm at highway speeds in diesel cars. don't know if that is the case with gen 1 DPF cars. second one is forced DPF regen which doesn't happen in everyday driving conditions. they are wantonly revving their cars to clog up the DPF filter so that the ECU is forced to burn off the soot to reduce Exhaust pressure even though the car is stationary. this causes incomplete combustion of excessive diesel fuel producing more soot and nasty exhaust. so unless you revv your diesel like a maniac while stationary or in stop n go traffic you'll never face this situation in your daily driving.

[@AlessandroGenTLe]

@@lordjaashin Don't know mate, it happened with a BMW X3 while driving down a hillside big road here in Italy, one of those roads where you can drive at 90km/h constant speed. And it happened again with a VW Passat (if I remember right) on another "highway-style" road to the MXP airport... About the video with the Opel: a standing still car smoking out just needs a 1km/h wind coming from the back to looks like it's smoking from below the car ;)

[@anthonyxuereb792]

that's a good point you've raised

[@Geirhanssen]

I bought Launch X431 PAD V and sign up for DDTSB. Looking forward to use these tools.

[@billrimmer5596]

Snap On is going to b mad u used a Launch. Great vid. I don’t usually like Diesels, but with the filter they r clean. What a shop u have. Thanks for teaching us!!

[@Diagnosedan]

Hi Bill great to hear from you again! Snapon absolutely isn't worried about some competition !

[@kenthesparky178]

I would not have guessed that fault in a million years.

[@Diagnosedan]

It's hard to find without the right info

[@rohanpeiris4411]

Hi Dan, I, too, have a similar problem ie. the fault code that I got was U029A- lost communication with the Hybrid Battery Pack service module. Would it be similar to what is explained in your clip?

[@alanwells3029]

Me too

[@KITS_Auto_and_Truck_Repair]

Great video Dan thanks for sharing!! Now what went bad on the old fans? It’s interesting how they bring down the network while they are still spinning fine!!!

[@Diagnosedan]

I'll do an update when i've examined the old fans

[@KITS_Auto_and_Truck_Repair]

@@Diagnosedan that's awesome I'm looking forward to the update!!

[@bluesky2145]

Me too!

[@organicvids]

@@Diagnosedan do you have an update? Are these 12 volt fans?

[@SkywalkerTibor]

One proper guy, one proper channel, quality as always. DiagnoseDAAAN!!

[@Diagnosedan]

Thanks!

[@SkywalkerTibor]

@@Diagnosedan Very welcome!

[@topcars5524]

thank you my friend. The contents you provide are great but I have a question what kind of this device do you use and what do you recommend to use for Japanese and German cars to check it well

[@Diagnosedan]

Launch or Autel

[@stevezb]

You probably get this question a lot But my biggest problem dealing with car electrical is the source for electric diagrams. I like to deal with small electrical stuff, I am not even close to what you do, you are my hero. What is the best reliable source for electrical diagrams for cars?

[@zxyqwerty123]

Hi Dan, interesting stuff on the DPF. Do you know what sort of measurements you get when a car is doing a regen cycle? Is it still clean?

[@Diagnosedan]

It should be, maybe we can do an experiment in another video

[@autotek7930]

What's the reason the fans caused the communication error?

[@BWGPEI]

Proving the old adage that good information is beyond price.I'm retired from that job, but back in the day I wrote service and troubleshooting manuals for equipment almost as complicated - ours had fibre optic communications so immune from that nasty electrical noise. Thus I appreciate the &*)) out of good technical bulletins. Glad to see you looking hale and active.

[@Diagnosedan]

Thanks for the comment it's appriciated. You must have been writing those manuals for something to do with Audio and Video. Fiber optic is also used in cars mostly for the entertainment system.

[@BWGPEI]

@@Diagnosedan Actually, it was bank proof equipment that read the magnetic encoding of the MICR line, and sorted checks in to pockets for distribution to other banks. 500 documents a minute down the track with auto-feeder, read, encode, endorse and microfilming functions plus up to five 4-pocket modules with attached printers. You think your customers are fussy - bankers can be far worse about the read rates for garbage MICR printing.

[@TheFrenchPug]

Love the bloopers. One may always wonder how difficult it is to make a good YT video. It doesn't look as easy as you make it. Dan does it again!

[@thefleaflop]

Awesome job thank you.... Mine intermittent also,... only occurred during high load... Fast speed, climbing hill. Etc. Fans were under stress. Since fans still worked, and appeared to be working up to speed, do you think they were slightly out of spec. To throw the code and disrupt the wave form??

[@maxjarno7814]

Excellent video.. A twist from the other side... The software application have seen the problem and given us a DTC. If the application is well developed it has a ringbuffer in form of a transient recorder that records pre and post that event (DTC) automatically. Sometimes in some systems(trains) you can on top of it set the event in the software algoritm as a trigger and choose a couple of signals to be recorded (pre and post) that you suspect. But thoose functions is buried deeper inside the manufacturers system. If the systems are designed as I am mentioning you would not need to hook up a scoope to solve the problem. The surrounding information is collected and sent up to the cloud and you can see it there. But that is on swedish trainmanagement system and not on cars.

[@hybridsolutiondiagnostics]

Wonderful video Dan... thank you for sharing... and apparently yes, that is a very common issue inside the fan's electrical board.

[@Diagnosedan]

Thanks for watching

[@danthemann6565]

Hello Dan from Hoboken New Jersey USA. Love your videos Dan, so happy to see a new episode. Keep up the good work.

[@Diagnosedan]

Thank! That's appriciated

[@adammcallister2260]

Glad to have another video! Great to not see someone just break out the parts cannon.

[@Diagnosedan]

Thanks Adam

[@devenair681]

Guru. Sensei. Brilliant and delivered in another language. Top man. Very informative. 👍👍🙂🙂

[@Diagnosedan]

Thank you very much

[@fir3w4lk3r]

Please do a fault analysis on those motors. What type of motors is it? They seemed to be BLDC motors. Judging from the scan tool PWM controlled with 6 levels? Was the error present even in small fan speed?

[@Diagnosedan]

I'll do an update

[@4Sucharith]

Gonna start using DDTSB TODAY HOPE HIS COUSTOMER S LOVE him.

[@gilron9585]

great video, i missed checking the old fans and see what is wrong there :)

[@Diagnosedan]

I'll do an update when i've examined the old fans

[@mead6754]

My favourite KZbin channel

[@Diagnosedan]

😄👍💪

[@Kethi2450]

Hi I have recently discovered you.. And watching your videos....its great please keep on making such videos😄

[@elelectricistademateo]

always is nice to understand new things the easy way just like you Dan do - appreciate your effort for helping us in our learning process - greetings from Caracas Venezuela to you, to your son and daughter - really like watching them helping you in your shop -

[@Diagnosedan]

Thanks Mateo

[@classicrestouk]

@DiagnoseDan You know what else is perfect? You diagnostics procedure ❤️

[@Diagnosedan]

Ha ha thanks

[@eamonnculliton100]

Just wondering when you are diagnosing a signal using a known good, where do you get the known good from? and what scope you use?

[@mikechiodetti4482]

Worn brushes that are arcing causing noise on the comm line. Is there a TSB possibly for adding a noise canceling device? Perhaps the bearing or bearings are worn causing higher current demand and noise in the comm line?

[@cjg6364]

Wonder if a new brush set would take care of the problem or perhaps a power feed circuit from the controller to the fan assemblies that has better signal filtering. I'm assuming that a cleaning of the commutator rings and new brush set would have solved the problem if they were replaceable. Increased arcing at the brush-commutator contact is probably the source of the noise that's finding its way back to the hybrid battery controller and giving it fits.

[@TheMickmac]

Hi there, I had this exact problem, A Lexus technician gave me a clue and asked me if there was anything blocking the vents and yes there were shopping bags and a Hoody. Removed items reset the car took the battery off for about a minute reconnected the battery all worked fine after that.

[@robertgregilovich2229]

Great diagnosis. Any idea what deteriorated in the fan to cause the "noise" and communication failure?

[@Diagnosedan]

I'll examine the old fans and i'll do an update

[@markt5426]

Hi Dan, Thank you for the informative video. So I'm wondering what has broken down in the old fans to break the communication link in the first place?

[@wasserman63]

Hi mark just loude thinking here. how likly is that that all three fans are faulty . Not very in my opinion. i guess there is a filter in the power supply line broken something as cheap a a the cent capacitor as a high pass filter. greetings from germany

[@Diagnosedan]

I'll do an update when i've examined the old fans

[@organicvids]

@@wasserman63 he said he tested fans individually and they still affected coms.

[@richardharker2775]

Those squentimetres are rarely used these days but I fully understand the communication between the brain and mouth can get overloaded at times. Also seeing the particulate instrument at work is scary information.

[@sulemanhabib1743]

Fantastic job boom! U are a professional in diagnostics thank ( DD). I love your video intro. Habib Auto all the way from Ghana West Africa

[@Diagnosedan]

Thanks!

[@davechapman7735]

brilliant work Sir, I really enjoy your videos. thanks for sharing. best wishes from NZ

[@Diagnosedan]

Thanks Dave

[@davechapman7735]

@@Diagnosedan your welcome Dan. I love your clips. always well done. cheers NZ

[@brianeno1062]

Dan has done it again, and it's always a delight! Thanks!

[@Diagnosedan]

Thanks Brian

[@davidkendrick213]

I enjoy watching you and I can’t help but learn something.

[@berydejesus4349]

Hi dan one quick question what would need to be replaced if by accident i hit the cells with wrong connecters for a hybrid yukon

[@stashu5242]

Dan; if these are brushed motors, would cleaning out the carbon dust restore them. They seemed to run pretty smooth.

[@koenhermkes13]

Hey Dan, the BMW diesel, was it on operating temperature or cold engine? Thank you for your information!

[@jdmfans6078]

🤯 blow my mind how easy you fix it.. thanks for share your knowledge with us..👏👏

[@febbral]

Dan, the last time I used a particle counter was in a clean room for semiconductor manufacturing, never thought of seeing one used for diesel exhaust checking. What about using some high frequency filter caps for fan motors to get rid of noise? Great video, clone yourself, not to many techs would take the time to properly diagnose the problem correctly.

[@Diagnosedan]

Thanks for the feedback Alfred. I'll examine those fans on a rainy Day to see what's wrong with them

[@norb0254]

Another great video DAN ...A bulletin is generally the result of some poor guy spending hours / days actually diagnoising the fault so others do not have too

[@Diagnosedan]

I know i make alot of those Bulletins myself🤣

[@chrisborczon4810]

A question for Diagnose Dan. Wouldn't a car with the DPF removed have an accumulation of black soot on the inside of the pipe? I've noticed all of the diesel vehicles here in the US with DPFs have 'squeaky clean' tailpipes. In fact we found a truck with a cracked DPF by seeing the sooty tailpipe. BTW, keep up the good work. You are an excellent teacher!

[@Diagnosedan]

Soot are the larger particles we can actually see with the naked eye. The smaller particles that we don't see are even more dangerous for our health. A DPF filters Both. Alot of times when a DPF is removed the Car is also tuned, that is the main cause for the black smoke

[@DmitriyL_Arithmechanics]

If turning on the fans disrupts communication with the fan controller, how are you able to turn them off using a scantool? #FunLogicQuestions

[@CubbyTech]

It's likely a different communication channel / network like CAN bus. The specific one he is monitoring is from the Hybrid control unit to the BMS - which wouldn't carry this kind of control stuff.

[@Diagnosedan]

The fans also have a direct Line to the Hybrid controle module.

[@Golo1949]

Dan you are worth every penny.

[@Diagnosedan]

Please tell my Wife🤣

[@davekwiatkowski4531]

DearDanno,As always you have captured my attention.... Great Vid.

[@Diagnosedan]

Thanks Dave

[@seaton95]

brilliant Dan, but cooling fan turned on and seems to be working what fault in cooling fan cause this issue.

[@Diagnosedan]

Thanks for watching

[@janvanderwal2744]

Mooie diagnose weer Dan, en wel makkelijk bij te komen gelukkig

[@Diagnosedan]

Dat dan weer wel.....😁

[@bintran5173]

Hi Dan I live in USA, can I use DDTSB Software? I didn’t see USA country in selection country menu, thanks for reading and answering

[@Charlie-zo2nu]

you didnt explain why the fans were causing the disturbance, that would be nice to know. was it magnetic field issue or what?!!!

[@upsidedown4155]

The bloopers make get me every time lol, They doing the dpf thing over here in uk as they been trailing it for around 2 years, been warning all the boys who been getting deletes that even with a empty dpf they will soon fail the mot's, then spend more money making it "oem" again to get it back on the road Pukka vid buddy 👍

[@Diagnosedan]

I think in the UK there is even a £1500 fine for Dpf removal

[@upsidedown4155]

@@Diagnosedan up to £1000 on cars, and £2500 on vans, but also depends what other powers the police or vosa (they are the police of the road but more authority) decide to enforce such as seizure of the vehicle or destruction of the vehicle, but i feel they dont push those often unless its a repeat offender and/or they want to make a example of them, Also i believe (not certain) it will be classed as a "dangerous defect" on the fail sheet which means the vehicle can not be driven again so if the test station are not doing the work, a recovery vehicle must take it to the garage to have it repaired, after the repair they can only drive it on the road to the test station for a retest

[@victorpatrick7714]

Dan great job, mine doesn't accelerate, when it's on the highway, suddenly, it's drops... What could be the cause.

[@islandhopperstuart]

Great video Dan. But what was wrong with the fans? Worn commutators producing RFI?

[@MrAntonioxi]

Dan could you perform an exhaust gas measurement during dpf regeneration? how much stuff comes out then .. somewhere those particles end up?

[@Diagnosedan]

Nothing Comes out the tailpipe. The soot gets burned and the ashes Stay behind in the Dpf.

[@carsten9511]

Question about hybrid cars. I am a guy who likes music alot, and in my toyota hybrid, the stock stereo just, really sucks. So, in my old cars it was super easy to install a new amp, sub and such, just hook it up to batteri and give it a remote, done. But a hybrid car is not the same. (as far as I know) so, what I was thinking of doing (to not allow the battery to be drained while playing music) I would add another gel battery, then hook that up to the cars 12v starter battery (not the hybrid one) and put a relay inbetween. The relay beeing that kind that shuts off when the main battery is below a certain threshold, and enables charging when the cars stock 12v is back up, so that I would never drain the cars battery (thus leaving the hybrid system with alot of faults) Would that be the most "correct" way to do this, or is there a more correct way to do this? (it's a 2019 yaris hybrid) I am aware that this will reduce the milage a bit, but I am ok with that. Thanks in advance :)

[@jn1979utube]

Such a useful info! Great personality makes it even more greater! Thank you!

[@dgoulian]

Interesting one Dan. But CAN BUS is supposed to compensate for external noise on the signal. I might have missed this if I listened to network theory! Also, no single fan was causing the issue? I wished you had diagnosed one of the bad fans to see why it was causing so much noise. But thanks again for a great video. Hybrid issues are only going to become more common.

[@delberttannen3403]

Good to see some battery based diagnostics, bring on the EVs!

[@Diagnosedan]

I've made quite a few already!

[@dhmhtrhsgeorgalas9082]

you have the best content in your videos very educated keep up the great job Dan!

[@Diagnosedan]

That's great to hear! Thanks

[@ashercohen4739]

Hello Dan Your videos are interesting and professional and with all that you are also funny, thank you.

[@Diagnosedan]

Thank you!

[@nullpointer1984]

That DPF side track was awesome!

[@Diagnosedan]

Thank you!

[@TheJosephayal]

Thank you so much for generously sharing your time and expertise