Low Mileage Camry What Happened to You? Part 3 The Repair and Cause?
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- Опубликовано: 20 окт 2024
- Let's get some modules put in this poor car and see if we can figure out what happened to this 2022 Toyota Camry with only 14,000 miles on the odometer...
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Man what a possessed Toyota! Nice job sorting through all the issues!
I'm going with "lightning strike" haha
It's not over yet. Still waiting on a few pieces of the puzzle to get it completely finished.
Florida doesn't have lightning 😬
Hi i live in the UK and watching you diagnose this car is unbelievable, the things you have uncovered is fantastic, my mate owns a workshop told him about your channel and couple of others in the US even the cars here are different in a lot of ways but your skills have been helpful, we will continue to watch so keep the good work coming, never too old to learn and thanks.
One type of IC component package failure is called popcorn-ing. Moisture can migrate into the package body (insulator), then cause a fracture during the heat cycle of solder reflow. Afterward, since the IC components and connection features are so small, contamination will start to degrade the circuits due to environmental exposure. Popcorn is avoided by careful handling of the components before soldering with storage bag sealing.
The 3 terminal chip (7N) across the CAN bus is most likely an ESD protection chip and not a filter. A filter would be bigger and have more terminals. The ESD chip has diodes that would short the line to ground for protection. You are right that you could remove the chip and the circuit would probably start working again.
Yes, probably ESD protection or TVS diodes. Would work like a pair of Zener diodes by sinking current from the CAN lines to ground when the voltage difference gets above a certain limit. There must have been a voltage spike on the CAN lines, a difference greater than 16v. Their normal failure mode would be to fail short circuit to ground to protect the circuits nearby. I'm surprised more modules didn't also fail if that is the case.
That is serious information for anyone that hits similar camera calibration issues. A serious well done on figuring that ‘pot of poo’ out 💪💪💪
Excellent Video! Customers need to realize how must time is needed to research and set up and reprogram modules. Looking forward to the conclusion video. Thanks for taking the time to share the info with us.
Man Jake this is one of the most educational, most unsatisfying (because of the inexcusable dealer behavior), and most satisfying (because of what you ultimately found and how close the car is now) diagnostic series I’ve ever seen. Props to you for what you learned and what you taught the community. Awesome work.
Excellent work! You're diagnostics are 2nd to none!!
It's Lipton Toyota. I wrote where it was in the previous video. It's a smaller dealer not one of the bigger ones. It's in Ft. Lauderdale might technically be Oakland Park but it's just west of I95 on Oakland Park Blvd south side of the road.
Fantastic work, Jake! It's unbelievable that there are so many hidden features and menus behind covert inputs! Great job finding them - lots of time spent on research!
Really enjoyed that you performed an autopsy on the bad modules - couldn't find info on a quick search, but I would bet the 7N is a dual surge arrester and it's presence means Toyota expects surges on that module's CAN lines. This can still be tied o a lightning induced overvoltage and the weakest components failed from it. Very curious to see Part 4!
That's interesting. I wonder if that is common on other OE modules? It is probably good that the cheaper component died rather than an expensive chip but i guess that doesnt save the customer any money. Makes it easy for Toyota to refurbish and resell modules though.
@@curtisroberts9137 Yep.
H! Jake Great work really work the grey matter. cheers mate.
Always learning when watching your videos 🙌
Your are a great diagnostician.keep it up.
Excellent Diag
As i worked alot on toyota here ...they use BLDC motor drives for eps if you can get eps drive computer from same parts car it will work perfectly.thx jack for taking us through your facts finding and fix.cheers
Nice case study. That Toyota is the gift that keeps on giving. I’m behind on watching your videos due to jury duty. I thought I go in and do it and now I’m sitting through a trial that lasts a couple weeks. 🤦♂️
To get out of the diagnostic just hold the power button for a few seconds. The screen shuts off and reboots. My bet is lightening strike. I just did a 22 Corolla lightening took out abs module. Left rear speed sensor. Certification ecu and main body ecu.
Awesome thanks
Thank you for all ur time and effort to teach us ❤❤❤❤
I have seen this before. What you have is a near lightning hit it probably came in true the wheel sensor .There is no protection for that kind of situation 😮
It's a strange one either way.
You did an awesome job with this basket case!
Another reason I don't take any of my vehicles to a dealership.
If you were closer to middle Tennessee I'd have you diagnos and fix a U0121 that I can't figure out myself.
Thanks for this in depth diag videos :D would be cool to see it on more types of cars
This sounds like a story for Steve Lehto to chime in on.. you should send it to him. Lol
I have a fancy GE washing machine that stopped draining. I pulled the pump ohmed it out and it was bad. Put a new pump in same issue. I pulled the control board it had 17 connections to it. It had a huge burn mark. Bought a new board all fixed. I assumed the drain pump took the board out. Many people had the exact same issue and an appliance guy on YT (Bens Appliance and Junk)figured out it's the board that takes the drain pump out. On washer board it's a triac that blows out on all the boards.
Wonder if toyota Manufacturer is seeing or going to see this and going to discipline its dealer techs. And for the first toyota tech, he should be ashamed of himself/herself and call toyota to reimburse and delete the tags on the vin of that car. Great job on the findings and diag on this one. 👏
man i love watching your videos. So much advance information and techniques. Keep up the great work!
That car has water damage. Id check the floor under the rug and the back seat for any SCM TCM or TSC modules or PCM. Pull the rug up passenger or driver. Something has 💧 in that car. One of the things that usually happens when you have water damage on a car. Especially storm damage is specific modules. In the cars have other capabilities, and if they get wet, everything goes crazy, check the trunk.Most of those newer cars have modules in the trunk.
No water damage.
obviously he'd have first checked for water. duh
Your shorted 3-terminal device was almost certainly a "TVS" (transient voltage suppression) diode. It's purpose is to divert a static electricity "zap" to ground before it can damage more sensitive electronic parts in the module. Your shorted part must have been overwhelmed and destroyed, allowing the processor to be damaged. A nearby lightning strike would explain this, and all of the other damage you listed (abs module, wheel sensor)...
Never knew that about the audio system. I'm going to check that out in my RAV4.
Good video Jake. Seeing those pc/component boards reminded me of working in electronics testing/repairing years ago before coming back to automotive in the mid 80's.
Great 👍🏼 learning ! Lots of very interesting things pertinent / involved with this particular job . Thanks mate .
awesome info.
Awesome Jake , love these videos man, thanks
the more i watch tech videos the more i love my 1994 ram 2500 4wd gas burner and my 1999 Jeep Grand Cherokee. But most of all my 1966 Dodge D500 Holmes Wrecker yes a wrecker without a computer.
That's a bad TVS diode, as others have mentioned. Digikey has a good white paper on automotive grade CAN Bus TVS protection and lists some SOT-23-3 devices. Same form factor as that 7N. May have been an easy fix for that module, either remove it or replace it.
Yep would of been a real easy fix if I didn't break it getting it out lol.
@@autodiagyt Yeah, but that's the beauty of working on broken stuff, it's already broken. And, of course always learn for the next time.
@@inothome FYI for all:- TVS = Transient Voltage Suppressor.
You are a machine man, great job well done. Thanks for the videos they are very helpful
Well done 👍
I think the little 7N Chip is for static protection of the data lines to protect the circuits after it from static. At a certain voltage it will let it run to ground and protect the circuit.
The third pin that is not Can H and Can L must go to ground.
Well done😀👍
Back on track!!!!!!
Getting close!
The abs unit will match up once you do the calibration.
You get the same code with a brand new abs ecu until you do the calibration
The turn signal could be tied to steering angle sensor that talks to the powersteering ecu
That 1931 Model "A" pickup for $11k is looking real good right now.
I looked up the service history and it states the vehicle had some aftermarket wiring causing the taillights to stay on and it also said that the alternator shorted out causing the ABS actuator to fail. Idk if any of that is true.
So go back to part 2 and see what one of the reported reasons for service was at the mileage the car stopped counting at and can you confirm that's the dealer that claimed collision damage. Email me if you don't mind autodiagyt@gmail.com
Turn signals didn't work before because that module was offline when everything else was offline. You even had a code for it on the initial scan.
that dead bug I guess was a TVS diode array for ESD protection
Chip in the ABS module and TVS diodes in the power steering module and a small or tiny dent in the front bumper. Sounds like they hit a downed power line.
Hit us with the middle finger pretty hard my man... JK😂 Great to see a conclusion on this one and some interesting Toyota secrets. The thing I really hate about these new cars is the shear expense of repairing these system we somehow managed to live without for over a hundred year but now are almost required and given time wil be government mandated i'm sure. Even the simplest touch screen radio from OE is 1000$ let alone self parking modules, sensors, cameras and all the other junk. It's fine when you buy it new and it's under warranty but the next guy who has to pay out of pocket or buy and expensive aftermarket warranty is SOL. Imagine the cost of replacing a touch screen dash in something like a Hyundai Ionic? I know of one Tesla that was totalled out by insurance over a battery replacement qouted at over 20k. I personally dont plan on owning anything newer than about 2014 and right now i'm perfectly happy with my 2001!!!
I had a subaru come in. Would not pass state inspection because of the red BRAKE light being on. WHen I scanned for codes ECU had p0420 and in the parking brake module cant remember the number but the code description was "ECU FAILURE". It seemed to work OK. Tested power and ground to module and found no issues. I replaced the parking brake module and still had same code. ECU failure. Come to find out the p0420 was the cause of the RED BRAKE light to flash because of a engine code in ECU. Also caused the ECU failure code in parking brake module. The guy had bought it at the local scumbag buy here pay here. The car lot had ordered a $100 dollar catalytic converter and o2 sensor kit. So he not only needed a cat (original was probably fine but the flex pipes on the cat rust and leak) Subaru wanted like 2800 for a cat.
$100 catalytic converter??? lmao That'll last until you can't see the tailings anymore....
Some used modules can be used and reprogrammed and some cannot. If it is an anti-theft part then it might be able to be cloned with a used module out of the vehicle. I would try and update all the modules, and it might code to the new VIN. Try to reprogram first.
its true when they say, information is key, well done being patient with this one, but every day is a school day, I would still send the bill to toyota USA and getthemto restore the warranty and clear the data about the car being wrecked. I for one will never put my money into toyota.😢
Thanks for diagnosing on video,interesting,steelerships suck,I think the owner should consider trying to get this car deblack balled with Toyota direct,could save issues down the years.
The N7 marking could be a P channel MOSFET or a NPN Transistor?
Dude! That's some serious dain-bramage! 🤪
I'm always trying to figger out the sequence of events that led to a malfunction, reverse polarity jump starts, KOEO cablehook up w/volt spikes, cranking immediately, some sort of owner/operator induced fuk-ery or previous repair attempts by a well intentioned ham-fisted Power Probe user.
My customer interviews range from questioning them like you would a 4 year old as to where the left their shoes, to using reverse psychology to get them to fess-up to what they did or might have done hours, days or weeks prior to an event.
Charge accordingly!
i suspect that to be a zener diode package so if too much voltage shows up on the can lines it shunts the excess to ground. hmmm did that rear tire take a lightning strike? sensor abs &steer modules nmm.
I have ran into so many vehicles with customers pushing bad batteries and or jumping off vehicles and I bet it came from voltage issues due to bad battery or being jumped off or jumping other vehicles off and it running during jumps.
I find that to diagnose everything you need to know a lot about computers, which i dont. What method would you recommend? I want to know everything about chips like eeprom, transcievers, filters and so on
You really just need to know circuit design. Like pull up, pull down, the different networks.
Awesome
I think you got a lightning car. Too many modules bad, and Florida has daily intense lighting storms during the summer. The strike was just strong enough to do some damage, but not take out modules the way you're used to. I'm sure that N7 chip is some kind of circuit protection - something like a double Zener diode.
A dealers business model just doesn't allow for this level of technical inquiry or pride in work.
wow multiple faults are the best 🤣🤣🤣 great approach my friend one thing at a time and work out if they are linked or you can get yourself in a right pickle. yes sir sometimes it’s the devils own job to work out if it’s a calibration fault or it really is a true fault . modern cars have so many it has to have that done before that works right “ is quite a task to keep up with 👍
Jake you thought you hated working on Nissans now you can add Toyotas to the list 🤪
its a sad sad world when you cannot buy a new car without a radio. simply will not run. steal the radio out of a new car will almost total the vehicle. i just don't see the need for all this. some say less wires i know better.
Hands up jake
Looks like original dealer needs a subpoena
Lakeland maybe
Part 2 showed the name.
Excellent analysis. Given what you showed on the circuit boards, I agree with lightning strike damage. The first chip you showed on the CAN bus is a diode network for overvoltage protection and the chip would have sacrificed itself during the lightning event.
Is that city Lakeland Florida
No the name of the dealer stated with an L, it's on the Carfax in part 2 video
Toyota needs to get back to simple cars. Too much technology is put in their cars. It ruined my 2020 Camry and the trust I used to have for Toyota products. I can't see buying a new one again. I'm sticking with older cars.
I though Nissan were a pain to work on never Toyota 🤦🏼♂️🤷🏼♂️
u gotta love modern cars for the crap electronics opps did i say that or just think it 👍🤣
Way too much complexity. Secret hidden menus and service functions.
What a complicated mess. lol
N7 chip looks for me as a NPN or PNP transistor
I'm thinking it's some kind of low voltage dual zener diode to clip voltage at a certain point.
@@autodiagyt i thought diode similar to diodes you wire in tow car lights
A bipolar transistor makes no sense at all in this position, I'm 95% sure it will be a dual TVS (transient voltage suppressor) which is a common fitment on automotive CAN bus. I can't find a part number for that code, but it isn't uncommon for codes to be unlisted in automotive electronics.
@@ferrumignis I believe you are correct.
I live in south florida and this is 100% a flood damaged vehicle.
It's definitely not a flood car.
The first dealer looked at the blackbox video and decided the driver's reckless abuse of the car caused the observed failures. The dealer defined driving abuse with a wreck/accident. Not what most people call and accident but it's their choice.
So a video of a car slamming on the brakes in front of you and crossing your lane in the process is classified as owner abuse? And also a lot of these triggers are really not that hard to hit. I've purposely triggered some of these and the threshold to hit some are really not that high. Also just driving a vehicle in any manner should NEVER cause a module to internally fail. We are not talking about a car that was beat on and now it has a mechanical issue with the engine or transmission.
Lakeland Toyota
The Carfax in part 2 video shows it as a different one
I could e wrong, but I think the N7 is a dual PIV and low frequency clamp.