Dealer Wants $7000 to fix HVAC Buttons?!? -Part 2 (Nissan Murano)
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- Опубликовано: 18 дек 2021
- With $7000 on the line, we need to be 100% accurate in our diagnosis of the HVAC/Radio controls problem.
I take a gamble and get a used control board from eBay to verify the hypothesis from Part 1...
The findings are very surprising!
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IVAN'S PICO WAVEFORMS:
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Enjoy!
Ivan 
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The customer is clever and did the right thing to drive all the way to an expert for a 2nd opinion. The dealership wiped out the replaced part possibility being bad as its 3 month old making a bad assumption rather than proper diagnostic. No wonder why people call them Stealer ships instead of dealer ships.
on top of what dan said, what if it was the 7,000 dollar part was the problem causing the switch board to go bad after three months? maybe the dealer was attempting to ensure the problem doesn't come back
@@Steffystr8mobbin its just unacceptable to throw an estimate for a 7000$ and say " Maybe the dealer was attempting to ensure the problem doesnt come back " intentions are not a question here, and if the problem was the 7k $ part, still the customer did excellent tactic to have it verified by an outsider. When the customer went back to the dealer claiming that the replacment part was faulty, the dealer didn't question if ivan diag is correct or not. They just accepted it and that goes back that the dealer mis diagnosed at first place.
@@dancarney106 The dealer story eliminates the replaced part being faulty assuming its only 3 month old. If the dealer technician reached to a dead end where he couldn't verify whether the replaced board or the module is the faulty part. Then, he should've refrained from going any further and giving an estimate. The customer from other side took the extra step, drove 4hr's to an expert to have it checked.
Stealer😂 indeed
It's not just this dealer, it's the vast majority of dealers. Thank heavens there are a few shops like yours! Love your methodic diagnostics!
Tells you its a used electronic piece lol
End of video. Cold solder joints are a big problem. Does the customer hv rough roads?
I wouldn't mind having been a fly on the wall when the owner confronted the stealer, especially if he dragged them over the coals on the unneeded work covered by the $7k estimate. That's some actual reality TV right there!
They have no shame.
They wanted $800 to replace water pump on a '04 Avalanche, I did it for $150 only took 4 beers.
The dealer doesn't care, if it wasn't under warranty they probably told him their diagnosis stands and if he isn't happy take his business elsewhere.
@@Avalanche2 But they should care. In this, the age of information, they really need to clean up their act. There's no excuse for such incompetence. It reflects badly on the brand as well in terms of reliability reputation so they should be taking a more proactive posture towards stamping this sort of thing out.
@@TonyRule Dealers have a captive audience and they know it. This wont hurt them at all unfortunately.
@@Avalanche2 Don't be so sure. Their sole rights to a brand in specific territory aren't in perpetuity and there's always somewhere else to buy from.
The real question is why does the AV module cost $7,000 ? What the hell is in it ? It costs more than top of the line gaming computer? That’s robbery.
They will charge whatever they can. Luckily this isn't a mechanical part and can be replaced by a used Ebay part if needed for around 2% of the new part cost
A brand new OEM part is priced at $754 from Nissan. The stealership was charging the additional $6,000 because they felt like it.
blaming it on chip shortage? dealership was owned by trump interprice?
@@dannyyo7948 Just stop, Idiot
@@bleachinuri i am really sorry sir to have offended you.
"New" does not always mean "Good" as demonstrated by the OEM controller. Nice detective work Brother, as always detailed, informative and logically thought out ... MUCH RESPECT !
Thanks Carl!
I worked as a tech at a semiconductor company, new parts were always referred to is "Suspected Good". Even the components we manufactured there were still
some that suffered from what is known as 'infant mortality'
Insane price for technology. I've never paid $7000 for a whole car!
damn right, I bought cars for around 2 to 3K and maintained them for over a decade for a total of under 7K .
Absolute no need for so much electronic garbage in a vehicle, newer you go the shorter the cost viable life is and greater the awkward ownership hassle .
No idea why so many people part with good money for no good products .
Slight correction though, if I may. It's not the cost, it's the price. Which is arbitrary.
@@mrb1864 Apple users in a nutshell.
I don't get it either my friend.
@@jimmyb1451 Fixed!
@@mrb1864 The dream merchants have convinced the masses they need all this glitter & bling to distract them from reality!
Ivan, I work on and design CAN based systems for a living. There are a very limited number of CAN transceivers which you could easily stock and replace on most any PC board. Basically there are 2 categories, CAN 2.0B and CAN FD. within those categories there are 2 variants, 5 Volt and 3.3 Volt. If the IC package type on the board is SOIC, it is extremely easy to replace with a hot air removal tool made for IC servicing. You need a soldering iron with a very small tip, a flux pen and some good quality flux core solder. You can do the entire job in 10 minutes . When you are done flood the area with isopropyl alcohol and scrub clean with a toothbrush. Rinse with the same and let it dry. Unless you need to seal the IC, which you can do out of a spray can, you are ready to go. For around $50 you could stock every known CAN transceiver in all of the package variants that exist…
This is the most anticipated video! I nearly put Mustie1 on pause to jump over. My feet are officially kicked up, I've told all the neighbors on the street to quiet their dogs, I blocked the street off and no Amazon trucks are allowed to deliver...not even the pizza guy can use the street while this video is playing. Houston....We are ready....Let the video begin!
Haha enjoy! 👍
Just did a 2020 Nissan Versa.. a little over 60K highway miles.. ALL 4 wheel bearings were already shot. All 4. You’d never guess what they wanted at the dealer since it was just past 60K in mileage. Nissans are the bane of my very existence.
Wow that's nuts. My wife's Rogue still has the original rear hubs at 243k miles. Front ones last about 120k though...
best advice buy a 2019 corolla or older
How much did they want for that? Crazy stuff. Nissans used to be very good cars.
Dealer should pay the diagnostics. You saved them the headache of changing the expensive part and they would have been surprised when it still did not work . . .
@@Android-ng1wn OK, If they replaced everything it would have worked.
Is a costumer choice to go to Ivan so the costumer has to pay Ivan
@@Simomotard33 True but if the dealer screws up a diagnostics . . . it's more a sentiment than a legal argument. I would still make the argument to the service manager knowing he would refuse it. I would not make a *scene*.
After part 1, I was thinking ebay, since the price was so cheap, and, ebay has a pretty good guarantee on the suitability of the items that their sellers provide. When the part didn't work 100 percent, the right thing to do was send it back for a refund. Fortunately, enough of the part worked to verify that the multifunction switch was causing the CAN bus problem. Nice catch on the part number mismatch and the customer should be buying you plenty of Christmas gifts!!! Great job!
Ivan, I was holding my breath for your "Part II." I, your humble servant, :-) would have died when that e bay panel was plugged in, and only some of the functions worked. YOU took it in stride. That's what I really admire about you - nothing that happens - comes along - doesn't work - catches fire :-) seems to overcome you. You have the right stuff. We all enjoy watching you tackle these problems with aplomb. . Thanks. See you at the next problem :-)
Peeps should be very thankful to have smart honest cats like you still in this biusness
$7000 is absolutely insane. I had the entire center screen and controller on my 2013 Tesla Model S upgraded to the latest hardware and labor and all was $2500 at the service center. This was with no warranty. Toyota tried to do the same thing with my parents on their 2006 Prius when the touch screen stopped working. They wanted $2000 for labor and $5000 for a new MCU unit. It took me 5 minutes of labor and a place online fixed the known defect with a lifetime warranty for $400. Dealerships would charge for blinker fluid if they thought they could get away with it.
yep...Lexus tried to charge me for water pump that went bad that was still under warranty until I called out their BS
@@paulsolovyovsky1702 My local Toyota dealership tried to screw me over when my HID headlights failed just after three years due to a known problem and wanted $340/headlight (in 2009), $200 just for the Sylvania bulb and claimed it wasn't covered by my extended warranty. I bought a pair of the exact same Sylvania bulbs on Ebay for $25 each, brand new in the package. I ended up going to a different dealership which replaced them free of charge under a "good will warranty" and I ended up with a pair of perfectly good HID bulbs. A ton of owners got screwed when the dealerships charged customers to replace the perfectly good ballast which was finally settled with a class-action lawsuit. I also had issues with a certain water pump that failed three times and squealed like a banshee except when I took it to the dealership (fixed under warranty fortunately). That was another known problem where if I didn't have the extended warranty I would have been screwed. In my experience with Tesla is that they charge a lot less for parts and labor than the dealerships, perhaps because Elon Musk said they shouldn't make a profit off of car repairs. For a number of repairs, Tesla has come to my house to do the repairs in my driveway at no extra charge. My guess is it saves them money since they don't have to deal with loner cars.
@@aaronwilliams1249 I would argue that Tesla is one of the worst when it comes to right to repair, they do not provide parts nor diagrams to repair their cars and have been fighting the right to repair initiatives in many states. They also do not want to fix bad cells and will charge you $20k for a new battery pack when only a few cells may be bad. I've had friends wait 4 months to repair their Teslas because they couldn't get parts, and this was before the pandemic and after. Google right to repair and Tesla and you'll get the full story how they use loopholes and dirty tricks to fight right to repair laws that are passed for consumer's benefit.
The customer should have paid Ivan to install the new factory part. I wouldn't let that dealer touch my car after their $7,000 estimate.
The dealer needs to reimburse the customer for Ivan's diagnosis.
For $7000 I could buy me a nice used car. Good job Ivan ! 👍
Or 5 used cars plus parts 😂
i have never seen a better advertisment for the old reliable cable & switch manual HVAC system.it was made to function, NOT to feed the dealer service bays like everything is nowdays.
Cable and switch can be unreliable if the manufacturer couldn’t care less. Reliability is about commitment, not parts. Many Lexus parts with digital and electric parts and yet EXTREMELY reliable.
I’m going to start calling this channel “Pine Hollow Nissan.” Mainly because I’m always seeing a Nissan in his videos
Great work Ivan. Merry Christmas and a Happy New Year.
I sat on the edge of my seat for part 2 on this one. Good job!
The customer with Ivan's help had what he needed and it's warranted! Good for the customer hopefully this one will last the life of the vehicle.
Good for Ivan you just enhanced your diagnostic skill and added to your resume!
It is frustrating when a new part is defective, we carry a lot of parts on our service trucks and they get banged around pretty good, sometimes for yrs, so I never *"ASSUME"* anything.
I think I would trade it in ! for what I don't know !! maybe a simpler car !
I work for Japanese dealership . Like I've said before training absolutely SUCKS !!! There is NO training . They make you do stupid modules on computer that you learn nothing from . Than they give you "Platinum" plaque . More platinum bodies in a shop , better treatment from manufacturer . Technology moves so fast that troubleshooting is very difficult for techs /you can spend time because it promotes your channel/ .... Add flat rate and you have perfect situation for things like this . I'm surprised that dealer wouldn't just plug in another unit /which they have for recalls/ knowing that it worked before . I sad it before , I've learned more from PHAD , Eric O. and Diag Dan than from this idiotic manufacturer "training" . God I miss my Porsche days .... Classroom , hands on , discussion .... And $ 7000 !!!!!!
Thanks for sharing the update awesome job with the diagnosis! It's ashame the customer paid the dealer all of that to get a misdiagnosis. Glad to see you restoring that customers faith that there are technicians out there that care to properly diagnose their issues and not trying to cost them thousands.between watching your videos and Bernies videos you guys really helped me have a better understanding of advanced electrical diagnosis! Thank you sir! I can actually follow along and interperet the data and identify bus faults. Now I just need to save up for my own oscilloscope to work with thanks to learning from you guys. Thank you and congratulations on the repair!
I watched this cuz I went thru this same scenario w a 01 Chrysler LHS. The dealer told the customer that the HVAC (auto climate control) was dead (stuck on vent only, no heat or a/c just climate air, and high fan only) and they said the part alone was $1100! And that was remanned! They were only partly right. I found a NOS controller on EBay for $175 with shipping. Turns out the blend door motor for the vent position was junk as well, and the most likely took out the controller. And what a job that was! Anyhow, we were nowhere near their quote even after the additional repairs. Great vid btw! thx for all u do!
What a shame that a previously reputable brand like Nissan has turned to crap. I had several Nissan prior to the buyout and had great experiences in 70s 80s and 90s. Apparently the parts are being mfg in China with questionable quality. Great job Ivan. You and Scotty Kilmer are my heroes. My motto "if I can't fix it , I don't need it. Sell donate or scrap it out. If used parts wont fix it. Dump it. Cut your losses and buy a Honda or Toyota . Everything else is a throwaway car. Not worth the cost of fixing them. IMHO that is.
The fact that the dealer installed controller actually worked for a while is puzzling. It's rare, but sometimes new parts can fail. Perhaps it wasn't really new? Good observation discovering that the eBay unit didn't load down the CAN bus and that the bus was functioning even with the wrong controller. Great detective work!
I never liked diagnostic trees that included "replace with known good part", but sometimes that's the most efficient course of action.
You’d be amazed how often AllData includes that in the diagnostic tree, now sometimes it makes sense and it is what it is, but there’s been plenty of times I’ve gone into AllData and it just straight up says replace with known good part lol it’s like yo wtf it doesn’t even try to give a diag process. I’ve noticed it’s really bad with airbag fault codes for some reason, maybe it’s because they don’t want people poking test equipment around on airbag modules? Idk but I see it a lot on airbag problems
Dealers' diagnostic trees are somewhat different. It says: "replace with known good car".
@@janoskovari9295 In this case they probably make more on the 7K fix than on a new car
Been waiting all day for part 2
Ivan, Your knowledge and willingness to both teach and share is second to none. Thanks for feeding my brain once again.
A great demonstration of your skills and the tools needed. Thanks! Keep it up.
Thanks for the update on the car. It's a good feeling to have a correct diagnosis. Yea, I wouldn't accept a $7,000 estimate without a second opinion. I've been burned before and that won't happen again.
Outstanding work. As a consumer, I am not shocked at the "shoot from the lip" attitude at this Nissan Dealer. The did not do their job as thoroughly as you. No wonder people are traveling for hours to have you work on their vehicles.
Great work Ivan! Have a Blessed Christmas with your family!
Wow Ivan, that was a tough one. Great job on the diagnosis. In the end I bet the owner was glad he made the drive to see you. Thanks for Sharing!
He was not disappointed 😉
Haha, I was a master tech over 10 years ago now. When you asked where to go at the end of part one, I must admit. My first thought was, if you hit an impass between 2 modules. You pick the cheapest = easily the control panel, and swap it with a matching (working) unit from another car.
But I was scared I would have been accused of prematurely firing the parts cannon, haha!
Great to see you went that route and had a win in the end.
Love your videos Ivan!
Great video and great diagnostics bro! I’m a Toyota and Lexus master tech but now I’ve ventured into the Nissan world! It’s like learning a new language to say the least. I enjoy watching videos like yours to familiarize myself with the brand. Keep up the good work!
Well done Ivan, you have great patients & determination to find the root cause of the problem. It can also sometimes be a bit daunting going up against the dealer, so well on this one 👍👍
Nice job on the diagnosis. You saved the customer quite a bit. That was a tough one.
Wow great in-depth fault finding, I seen a advertisement to learn about can bus systems and building your own for car builds. This is the icing on the cake love it
Great diagnosis sir. Bravo!
Great diagnostic video even with the wrong part from eBay!!! best Christmas story.
Excellent work Ivan! Even curve balls don't dissuade you from a logical diag path.
I’m highly impressed with your trouble shooting skills. I’ve watched many of your videos, and anybody that has you working on their car is very lucky.
Awesome tutorial. Great diagnosis. And new skills learned.
Ivan nice detective work and thxs for the follow up on the repair......
So psyced to see the conclusion but sure didn't expect that!
I think everybody that knows about your videos and knows about your work is very very lucky because without your diagnosis and how thorough you are with your case studies people would be screwed out of a lot of money if you had a big shop with five people working for you that is as thorough as you are you put dealers out of business nobody would want to go anywhere else because they know that you are going to find the problem prove that is the problem and make it right you're like the Mike Holmes of the Auto industry thank God for you Ivan keep up the good work God bless you and your family and Merry Christmas and happy New Year
A detective with a scope.
Hey Ivan, another awesome video thank you. And thanks also for the files. I've taken a look and decoded the packets using the CAN decoder in Pico. With the original board fitted we had the same message over and over again hence the packet structure looking the same. What is interesting to note though is the ID for these packets is 601. With the different board fitted this ID changes to 681 indicating as you said that something has changed but the data is still invalid and just overloading the bus. What's really cool though is where you had 4 channels in the first captures you can actually zoom in around a packet, overlay all four channels and see the phase shift between the same message. This can give you some direction as to what probes were closer to the where the message came from. With regards to the ringing, this is typical when using standard test leads. If you were to use scope probes with a higher bandwidth and impedance, this ringing would be less noticeable. Thanks again Ivan and keep up the good work! Happy holidays!
Your customers are very lucky. Very professional approach to all phases of repair. Well done Sir😎
Wow, great Diagnostics. You lucked into the eBay part to work well enough to confirm the network problem and then send it back because of a part number mismatch.
It'd be always interesting to have bonus part 3 of some board re-work :)
I learned long ago as a technician on a submarine new parts that are bad can ruin your day. One of the hardest problems to diagnose.
You have me hooked .Fascinating educational videos for the completely uninitiated.
When customers come to me from the dealership, I also like you sir perform a diagnose . Good video and thank you
I know very little about modern electronics in cars, and I was totally engrossed by both videos. Great stuff bud. Bit of a shame really that you never got the chance to hang on to the dud board and put it under a microscope.
Damn, when the lights on the head unit came on, I thought for sure it was all gonna work... Sweet diag, Ivan....
Me too! At least some of the knobs worked haha
Nice job Ivan, I love your Bull dog
mentality on finding the problem
unlike the Dealership that half- assed it!!! That's why people don't
trust dealerships anymore!!!!!
I’m glad you saved your customer a lot of money. You’re right. A $7,000 estimate is definitely highway robbery. You should have identified the dealership on your video.
Been waiting for the sequel 😁
In part one, you mentioned how the dealership the owner went to, wrote off on a bad AV control unit based on codes alone. (I call it the head unit.) But obviously, part of the system was still working from the steering wheel controls. Just nothing through the front panel controls. So, a reasonable hypothesis would suggest that the new front panel control board must have failed? As the saying goes "new part doesn't always mean good part". I would have done a similar thing. But I would call a few local junk yards and see who's got a used front panel controller and give it a shot. Awesome work as always Ivan!
Excellent work in finding the problem and showing up these stealer dealers.
This really was a cliff hanger, awesome detective work Ivan! Maybe disconnecting the battery forces the system to re-interrogate the module and throw the DTCs again?
Not sure... Battery was a bit weak.
So...you nailed it when you saw the waveform after connecting the panel. It's so hard to believe new parts are bad. Nice...
Keep up the good fight, Ivan. IMO something has really gone wrong with engineers when it costs $7000 to have heat and a radio in your car. Dealers need $ too, I guess. Thanks for the video.
If the dealership is garbage but has any sense they'll just eat all this an do the repair. If they're any good there's a service manager and a tech on the hotseat for this. Great work on your part saving that man 7000$ in time for Xmas.
It’s really reassuring that I’m not the only one that comes across really weird head scratching problems with cars lol.
Thanks much for this video. I had a similar Nissan SUV problem where previous owner swapped the BCM with different part numbers and was struggling with power windows, locks, turn signals not working issues. It was all due to a different p/n BCM.
GOOD and HONEST mechanics like you are Eric O make so many dealership techs look like inexperienced fools which plenty are, plenty of dealers have people scammed thinking they have amazing techs which they dont.
Another awesome diagnosis Ivan! Indeed electronic components do go bad even for a short amount of time. The customer did the right thing on bringing it over to you for a 2nd opinion and saved money. Sadly, we won't be able to find out what made the 3 month old panel to go bad. Power spikes, loose solder joints, etc. But definitely a win for both you and the customer. Cheers!
Quality control of OEM parts? The OEM parts are expensive and quality should be good, right? "electronic components do go bad." I definitely agreed with that. But...where is the quality of OEM parts and honesty as a human being?
@@rexko381 At this point I consider ALL parts from any source a crapshoot.
@@rexko381 $7000.00 is a crime !!!
that must feel great, you just saved a customer $7k minus diag. I've had an indy shop help me with the Lexus GX in the same manner regarding thee secondary air system pump and valves going dead prematurely. I had to fight with Lexus to cover the $3k in parts and paid $300 until a few years later it was covered under recall. It's amazing to have someone on your side that can guide you through the minefield and not get ripped off..
Good result! Lucky you got the wrong part from ebay. Gave you the perfect excuse for a refund and helped enormously with the diagnosis - Win, Win. I have to say I was on the edge of my seat after part one but a little deflated by part two. Hoping for one of your famous '' No Parts Required '' outcomes. Maybe a dry solder joint or a fried capacitor on the board.
Good call though Ivan ( especially with 7 grand on the line). Always enjoy your step by step approach interrupted by the occasional ''Hmmmmm....'' while you think about your next move.
If I was starting out again in the motor industry this is the route I would go down. The vehicles are now so complicated there are no people in dealerships who can diagnose faults. All they do is just keep replacing bits at our expense until it starts working again. Between you and DiagnoseDan, at 62 I am on a fast learning curve.
Ivan, you are 100% accurate whether it is $7 or $7,000.00. Obviously, I can't buy a new car; because you can't be there to repair it! Great video!
Another thorough diagnosis. If I were the SM I would have paid your diagnostic charge to the customer and charged it to whatever policy account the dealer uses for customer comebacks/ satisfaction issues. Since most of the components are SMD it’s probably a contact issue / broken solder paste. You basically kept the customer car from being totaled.
You'd think those codes would be stored until the issue is resolved. I see this when dealing with bad connections in CAN networks. Excellent diagnosis.
The most important thing I've learned from Ivan; move slowly and THINK. I'm not a mechanic, but I've fixed quite a few problems by applying what I've learned.
In my local language we name this Nissan Murano as Nissan "'Merana" - "Merana" means Suffering
Great job thanks for showing everybody
I recently got a $7000+ estimate for my truck...to replace the motor!!
Reman engine with warranty, plus labor....its in that ballpark for a gas engine. Easily 3 times that for a diesel.
Great diagnostic
Great work. I'm sure your customer was very very appreciative! As far as what I would have done? Wow that's a tough question I guess most people would believe the dealer . Being a diy kind of guy I would have tried the same thing you did. 7 grand is outrageous.
Thanks for the great follow-up!
Have been waiting for it.. liked the video before i see it
The detective is in the house. Good show! Go get the Dealer and take him to hand.
It lasted a whole 3 months, great quality control there.
Great job again, Ivan.
As to why the replacement Multi-function switch failed, at some point the customer (or someone) likely connected an IPOD with a bad chip on it. This is what generated the U1229 code, most likely. I don't know if the IPOD was connected with a wire, or wireless (Bluetooth). If Bluetooth, then it probably could not have physically damaged the Multi-function Switch board. If wired, it may have. Could have been what damaged the original Multi-function Switch board. Cannot say.
Great job again, Ivan. I am glad your diagnostics was correct, as I suspected it would be as usual. Very interesting video, and well done.
Omegaman69
Hmm... good point! Maybe we can verify this with the customer?
Well i would have to say if i got estimate for $7k i wouls come see you for proper Diagnostics and have it done right and hopefully not turn it into a parts cannon thats why we have a guy like you Ivan who will take the time to dig a liitle deeper to find the real issue ans solve it the right way keep up the good work and thanks...
Ivan, great catch Ebay parts not alway work. For the dealer, to give this type of estimate with out investigation knowing the had replace the part before that's highway robbery. Horrible service to a customer very dishonest company and is not the only one. Never trust dealers their best interest is them no on else. Great skills Sir. Great video. Take care Happy Holidays!! 😊
Well done ivan, You gave the owner a solid diag :-).
That bus driver on the switch panel must be really fragile or crap lol.
Sorry i forget that your videos are not in the same week, so im flapping my lips after the fact lol.
I was waiting for this part 2
Wow, just that board was not correct? As of the part number not correct. Wow, at least with your report sending to dealer and he got a new board under warranty. That's awesome! Nail biting conclusion!!! Lol. Would love to see when you fix the board and see what went wrong!! That would be so cool! Awesome video!! 👌 many 👍 up
Reminds me of my former Audi A4 which had the worst electronics ever. I replaced so many components in the dash that I lost count and I spent a small fortune on that POS. I would put in a brand new OEM part and a month or two later it would go bad. At the end of the day it was a case of poor manufacture. I got rid of that money pit (CEL were weekly) and I've been happy ever since!
$7000 is probably what the Murano is worth. Setting that disturbing thought aside, it occured to me that something in the AV module could be damaging the multi switch controller over time or an intermittent issue with the AV module could also damage the controller. I guess you'll find out in due time.
Fine job and nice save. Stealerships at work they don't have any inventory so gotta make sure they make money some how
Ivan, I have an idea for you. On your business shirt you should put, " If a man made it, a man can fix it " . And that's where you come in 😎.....
Great video and introduction to CAN bus. You have given us an insight into fault finding and how to approach faults. A good electronics technician should be able to locate and fix the faulty section on the board, rather than replace the whole switch unit.
Good luck finding one !Q
$7-Graaaaaand!! I could still buy 3-4 cars in reasonably running condition for that today! Dealerships are insane. I used to think it was just GM and FoMoCo, but it's ALL of them!
Typical - I bet Nissan got all its board components straight from the mainland. Par for the 21st Century course! Great case study, Ivan.
Doesn't matter where they got anything from. You farm something out to a spec and they build it to spec, it's on you and not them. "If we make the panel a tenth of a MM thinner we can save 18000 pounds in plastic costs. If we shorten the wires just a tiny bit we can save XXXXX.
I had a 87 Accord with the pop up head lamps. Over time, the wiring to both headlamps stress fractured. I ended up splicing in about 6 inches of wire into both. Like bending a paper clip. Honda had I believe a 4 year run with that model. Around 400,000 cars a year every year. So, 1,600,000 cars, 1 foot of wire or 1,600,000 feet of wire. 303 miles of wire over 4 years. Not every car had the problem I had. But, I most likely wouldn't have had the problem if the wiring was longer.
Great job Ivan. I'm trying to follow , but in the end I got it. A little diagram on a dry erase board might have made it easier, in terms if networks and oscilloscope signals, especially when you were going thru wiring diagrams. Kind Regards, Craig
NEW. You’ve said it yourself, stands for “never ever works”. Yet another example. Great job. Peace
I bet those series of circuit boards were not built robust enough to handle the every day vibration/bumps. In my experience, boards in that environment should be isolated with rubber isolators to prevent board shock and cracked solder joints.
What? You want the vehicle to last past the warranty?! 🙂
That would mean the old board could be fixed by poppint it into a reflow oven. I already figured that a bad solder joint at either the connector or the CAN transceiver chip would be the prime suspect here. It would also explain the ringing on the CAN bus -- that's a sign of bad (but somewhat present) termination.
Seems like Nissan is with holding information !