VW Passat B5 airbag light on error 01221 crash sensor. Fault finding and repair.
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- čas přidán 5. 09. 2024
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Hi
What a job... 🤦♂️
So, came to me with the airbag light on, and after a scan, came up with a crash sensor fault... Error 01221.
New sensor, worth more than the car... (ish...), and second hand, well, let's say is not that straight forward... but, I found a way round that...
NOTE: Would like to point out, that when I initially changed the ID from 0D to 04, and that triggered a faulty sensor, could also be because on top of the ID, was other data, as I showed in the video, that was different... ence when I copied the data from the good sensor, it worked.
Also, the eeprom from the original faulty sensor, could not be read... the chip was dead... so I could not copy that one...
Follow me on this video to find out what was the problem and how to resolve it.
Artipad unboxing video:
• New tool unboxing.... ...
Hope you enjoy the video.
Any questions or comments put them below.
Like always, thank you for watching!
Having owned a Volkswagen for about 6 months now, I've learned a LOT, and can 100%, without a shred of uncertainty, tell you what the problem is here.
Answer-
You bought a Volkswagen.
Get rid of it and thank me later.
man .... that`s a lot of work , in my numbers the charge for diagnosis , reading-writing the eeprom and open the airbag sensor, system final check , cost more than that Passat B5 old car .... but yet the repair information is priceless , thank you! :)
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Absolutely... the sensor from VW would cost more that the car...
Thank you for watching and for your comment!
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Super good job.
It is sad that car manufacturer put in all these coding and crap. Any sensor with the right part number should do the job, without special coding crap.
If the coding is for calibration, each sensor should have its own data, not the module itself.
I guess is for security, yeah the financial security of the manufacturer.
Indeed...
Thank you for watching and for your comment!
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Honest channel, with a lot of information. 👍🇸🇮
Thank you?
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You are genius, I mean you deserve it. All love and appreciation to you from Iraq.
Thanks!
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Very good video! I have the same problem with one Passat. I will probably do the same: copy eeprom from good one to faulty side. But.... with all due respect to you - i think this solution is a litle bit wrong (sorry :(). When you cleared crash - you know exactly that you deleted unnecessary data like speed of impact, force of impact, numbers of airbags deployed etc. But in sensor eeprom I think is writed specificaly data which is closely related to the physical data of the sensor! For example: linearisation of sensor inside, threshold of working area. But this is my opinion.
The software on the artipad is pretty much identical to my launch x431
Again good video.
Yes... looks like...
Thank you for watching and for your comment!
You are just so good at detailed explanations , and exellent again !
Thanks!
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Hard work this one but you got it mate... in the other video I had the impression that you’ve changed the 4.0 Id in three places, but you’ve created a dump from the original left hand side sensor and writing the whole data into the scrap yard one if I understood well 👍👍👍👍
Yes... as I mentioned, looks like there is more than just the ID, perhaps if the sensor was exactly the same, and just the ID was different would work.
But in this case, on top of the ID, was other data that was different...
Thanks!
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This helped a lot with the same fault on my car. Thanks to your efforts I knew exactly where to find the EEprom without having to de-pot the whole thing.
Same as you, the EEprom was unable to be read by the car reporting back nothing in software. I tried a second hand one with the same result as you, it was picked up by vehicle but reported back 04 instead of 01 in my case. When I changed this value and re-flashed it was then being recorded by software as 05? Which I think must be some kind of error, as no matter what value I changed it to, it always recorded 05. I think as others have commented, there must be a checksum. I even copied byte for byte the code you had on your sensor screenshot and I had the same 05 being recorded in software. In the end, I did as you did, removed the passenger side one and used the code from that to re-flash the drivers side which worked perfectly. What is also worth noting is that the passenger side had a "40" recorded on the EEprom in bytes 8 and 9, but yet is read back as 01 in software. Whilst this must have some bearing, I think there is more to it than meats the eye! But without your efforts I wouldn't have bothered, so thank you!
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You never cease to amaze me
I do my best!
Thank you for watching and for your comment!
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Great video,hopes you and family are well
Hi
Yes... so far so good...
Stay safe!
Thank you for watching and for your comment!
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I always am impressed with your perseverance the way you work, learn and teach.
Could you have swapped the EPROM from the original sensor to the other?
Thanks for all your videos.
I could, but as I have explained in the video, the data inside the ori eeprom was corrupted... you must have missed that part...😉
Thank you for watching and for your comment!
@@LMAutoRepairs Yes I did sorry
"must pay more attention"
@@johnf3278
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To save on time. Couldn't you have swapped the 2 sensors over at the beginning to prove fault would move to other side and clear on drivers side.
Yes that's correct...
Thank you for watching and for your comment!
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@@LMAutoRepairs £200 on a sensor poor customer the sensor is down drivers side door pillow they get damp and connections corrode just clean the connection then cover in greese works 99% of the time its not the sensor learn to use your reader sensors tell you there is something wrong how much did you charge for that job ?
This was not one of those 99% of the times... as you might have seen...
Charged way less that the £200 a new sensor would cost...
Nice work . And by the way sweeping the ic from the original Airbag to uesd working one . Not working out . I get the same fault. So its software problem not hardware. And i have now the same problem what you did in this video. 4 crash sensors not correct . So uesd Airbag it will work without any problems just if its changed with original crash sensors for the same aftermarket Airbag.
You know what, you always make me develope more interest. That was great.
That's great!
Thanks, for watching and for your comment!
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I think crc byte must be changed as well...
Crazy man very very clever,enjoyed the video.
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Thanks!
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Looks to me that the ArtiPad is a Launch. Looks extremely similar 🙄
I went thru the same process on a Skoda 6 months ago. Took me a couple of weeks on and off to sort it. Eventually did what you did with 2nd hand sensors. Even tried new sensors but TPS in their wisdom had sent me 2 sensors that were the wrong ones. Same numbers on the sensors as the original ones as well. Over priced German sh*t. No need for it at all.
WoW amazing fix👍
Only a Master Tech like you can fix that😎
I wonder if there was an option with the Autel to rewrite sensor id?
Thanks for sharing Bro👍
Looking forward to the id relearn video😉
Stay safe Bro❤
No...
My research is that this sensors are programmed at the factory and that it...
I would be curious if there is a way of changing the ID on them...
Thank you for watching and for your comment!
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it was me who Recognize you .
Possibly...
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Yard closed to walk in customer s but if you need anything drop me a email
@@neilburton7398
I guessed that would be the case...
I will Neil... thanks!
Stay safe!
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You are the man,very clever guy.
Keep up the great content 😁
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Thanks!
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Thank you brother, it works 100%
hello
can you do a basic setting on passat passenger seat, and where do we get the access code, for coding great videos as always
Спасибо за информацию
Very very very professional
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Thanks!
Sterling job mate just watched again 😋👍👍👍👍
Thanks Igor?
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Super film. Pozdrawiam
Thanks!
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yes I now only you do this job very good
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Thanks!
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Thats realy deep Luis.Messing with a crash sensor......dangerus thing i think
Dangerous...🤔
It is a pressure sensor basically... and I changed his "name"... is not that dangerous really... not much different than when you clear crash data for example...
I guess...
Thank you for watching and for your comment!
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Hi friend
Why didn't you program it online and why old cars like 2008 don't need online to activate while new ones need on line
You are a MASTER!!!!
Thanks!
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I have a vw passat b5.5 from the 2005 - how can I know whic hreplacement sensor I need ?
Remove yours and check part numbers...
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Hello Sir and thank you very much for sharing your knowledge and work!
I have a rather important question:
If I buy the sensor directly from the manufacturer, will it already be set up according to my vehicle or will I need to flash the chip and the data as you did?
Thank you in advance for your answer, and the time to have read my message :)
( I am French and I did not understand everything in your video due to my level of understanding in English )
If you get it from the dealer, it is plug and play... no need to do anything...
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@@LMAutoRepairs perfect, thank you for your answer! I'll come and see the price and availability at the manufacturer's next week, good evening to you!
@@benmc1238
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Epic results! I have now watched this video 6 times over two days and I think I am beginning to understand that I don't understand much at all. Please help out with a couple of questions.
I googled about the chips, xproc and Willem. Willem resulted in many products, some obsolete, and there seems to exist a probability of me buying the wrong thing for about 40 - 70 quid. I live on the edge of Europe, probably more here.
1) Would it make sense for me to even buy extra hardware to try and fix this?
I have a gut feeling that a considerable amount of money will be spent on tools, but I may (or will) still inevitably get stuck.
Perhaps for a person who has seen an EEPROM on pictures... it is a better idea to give up already and just buy the sensor from the dealer?
(I do have interest to learn, but I have to pass inspection with the Passat this month or else. I think there's more than a month's worth of electronics that has to be learned.)
1.1) Basically, in short, do I have to buy moderately expensive tools (and, then, which ones?) or are there very basic easy ways to connect the chip to a computer?
2) If question 1 is a green go-ahead, how did you get the area so clean around the EEPROM?
I doubt with a knife - that could damage the pcb.
Thanks for the video and for your time if you can answer this!
** bonus question-idea: maybe consider making tutorials for beginners on how to connect similar chips to the computer and accomplish what you did. :)
Hi
For a one of use, I wouldn't spend the money...
Buy the sensor from the dealer, although expensive, will still "cheaper" than the money you are going to spend on tools, plus the time and assle...
If you have scrap yards around you, see if you can get a sensor from a car built the same year as yours... you might be lucky...
Or online, if you have that facility...
Obviously if you are willing to have a go at it, you can... it can be daunting if it is the first time doing anything like, be prepared for setbacks, etc...
Hope you get yours sorted...
Thank you for watching and for your comment!
Very useful video. I like it
Thank you!
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Perfect, thanks... 👍
Thanks!
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U did a good job.but I have an idea a little bit of saving time using vag crash data sensor rest tool and adaptation again
Am use several times on vag group cars
What do you think!
Have nice Sunday..
I would be very interested...
As at the time of this video, the research I have done, lead to the conclusion that the ID of the sensor was programmed at the factory and that was it... if the is a way of changing the ID of this sensors, I am curious...
This is NOT crash data... if you know what I mean...
Thank you for watching!
Question...i gave up no more question hahaha
Too much work .
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@@LMAutoRepairs I think its the sensor lol its just the connections corrode ask any peugeot mechanic who has worked on them learn what the sensors are telling you
@@carlatodd4464
You must have an obsession with sensors...
SENSORS ALSO FAIL AND GIVE THE WRONG INFORMATION
You really don't know what you are talking about...🤦♂️
@@LMAutoRepairs where did you learn how to do what you do ?
Your so good ....
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Thanks!
Just out of curiosity, what If you bridge the sensors, so the right wiring loom pulls the signal from the left sensor. Would that work?
No idea...
However... one thing is fix the sensor, which I see nothing wrong with that, another thing is bodgit like that... I wouldn't do that!
Thank you for watching!
thank you for the clear explanation very good video...learning a lot from you and is become time that youtube reach to you ;-)
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Thanks!
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Hi
I have the same problem with other one used sensor it says its incorrect or no settings
Because i cant do all things you do is there option to check sensor before buying it maybe i can be sure it the right one by comparing numbers or something like that or i need only to try it in my car and see is it the right
Try to get one from a car from the same year... and you will hopefully be ok...🤞
If there is a way of checking them through the part number, I am not aware of it...
Thank you for watching and for your comment!
@@LMAutoRepairs thanks for fast and good advice
Hi Louis!
Very interesting problem and tricky solution.
I have 2 questions:
1. Name the brand of chip eeprom.
2. If the part number matches, but the ID does not fit ... How to order the correct sensor?
1. Video coming with more details... stay tuned...
2. I guess from dealer will be no problem...
Second hand... I guess is a hit and miss...
Maybe look for a same year donor car will help...
Thank you for watching and for your comment!
@@LMAutoRepairs
how many conclusions does the sensor have?
@@engeneer_ru5827
What do you mean with conclusions?
@@LMAutoRepairs
Извините за мой английский! Сколько контактов в разъеме датчика? Сколько проводов соединяет датчик и блок подушки безопасности?
CAN, K-line, LIN....?
The sensor only has 2 wires...
This is exactly the same fault as mine shows, I clear it using VCDS but a few weeks later, the fault reapears. If I get a new one, does it have to be coded??
No, if the id is the same...
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@@LMAutoRepairs Thanks for reply! After watching your video, I can check the index numbers using VCDS, by my reckoning, if they match the other side , it should work.
Everything is beautiful, but I would not like to have an accident with this car. Will you guarantee the owner that your action will not cause the pillows to fail in the event of an accident? And how does the insurer see the interference in the sensors and reject the claim for compensation?
I could test it just to make you happy and could prove is working... but obviously I have nothing to prove you...
If was an issue with the sensor, I would have a fault... don't you think?
Thank you for watching and for your comment!
Launch pad 3 is same as this. I got the launch pad
Thanks!
Great video.
Thanks Richard!
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Do you still have that file from working 04 sensor? Would it be possible to upload it somewhere? I have read EEPROM data from the faulty sensor and copied it to one from scrap yard, but it now shows "faulty" on scrap yard one as well. So I guess, the content of EEPROM stores data about the status of the sensor.
No... someone else already asked... unfortunately I didn't saved it...😔
Thank you for watching!
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@@LMAutoRepairs Thanks for the reply and excellent videos 🙂
wow your good
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Thank you!
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Did you open the original faulty module and attempt to read the EPROM from there?
Yes... as I said in the video, failed to read it...
Thank you for watching and for your comment!
Hi there! I am looking for any tricks or bypass for faulty oem sensor. Is it possible, may be with more than 1 resistor .
Regards!
On Ford Fusion 2015
A crash sensor most likely is not possible to bypass... depends on the model...
There ia an active communication between the module and the sensor... a resistor will do nothing...
@@LMAutoRepairs i have done reset crash on my restraint unit, and have installed resistor to seat occupancy sensor , but driver side airbags still determines error,so i am not able to find new one and looking for repair or may be issue is the contact inside sensor may be one of them resistor. What u recommend?
I appreciate your responsibility to respons on time and help others and kindness to and and thanks for your time
Topdon is just rebranded Launch scanner, maybe even more expensive.
Btw, I recommend you using the extension cable for OBD dongle. It gets damaged easy and it's expensive to replace.
@@clutchfreak13
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Yes... already covered in other videos...
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Thank you for watching and for your comment!
Good job, but i think the maxipro is better than that tools
Thanks!
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Top boy 👍
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Thanks!
If the car was sent to the dealership for repair, what procedure would they follow?
New sensor...
Thank you for watching and for your comment!
@@LMAutoRepairs A new sensor with the cars right id or would they program the airbag module to accept whichever id the new sensor would have?
@@dimitriskarampatsos7318
If ordered to the car, would come already programmed with the correct ID...
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@@LMAutoRepairs couldn't be the module programmed to accept a random id sensor?
What difference does each id makes apart from... triggering a dtc?
What's the point of different ids?
@@dimitriskarampatsos7318
No... both sensors need to have the same ID...
It might was possible to get a pair with the same ID and program the ecu to accept it... I went on a different route...
Other than triggering a fault and the light on, I guess it will put the Airbags inoperable...
Thank you for watching and for your comment!
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K... where the F is the sensor located?
Under the carpets...
I showed it at some point throughout the video...
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First of all. I would really thank you for all of your efforts and for sharing your knowledge. Especially this high experience.
I think this scanner is same to launch and i am pretty sure Maxi sys is much much better and they are incomparable between each other. The reason that i had a really bad experience with a launch which gave me wrong dtc and hard to connect to ecus and also very slow so i called it the 'faggot'.
Really sorry for the expression.
Again thanks a lot sir 😁
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Thank you for watching and for your comment, appreciated!
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How to change sensor id.
As I said in the video... stay tuned, video coming for it...
Thank you for watching!
@@LMAutoRepairs ah kk coming soon..!
Thank you so much..are you reply us
@@badmarvel1840
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I spent over 40usd for 2 sensors but they dont have the right id
Im mad at myself i have spent money and do nothing
Airbag light is still on
Did you solve the problem?
@@mariabaciu5009 actually yes my friend have right sensor and after install i delete fault and light disapear finally
@@igorstjepanovic3260 Do you have any idea, if the car has been into a car crash, the sensor just dies? Or can be reused?
I can not remember right now, because i am not at home near my PC, but i think i was success to change sensor ID match in airbag module memory manually. You are go on another way of thinking and tried to change ID in sensor. But much easy way is to change sensor ID in airbag module memory.
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Should use VCDS. Better than this tablet thing.
Depends what you use it for...
But yes, VCDS is very powerful for what it is...
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Everybody's running on low fuel lately....
Not just lately...
Thank you for watching!
WASTE OF MONEY TO BUY A TABLET.YOU CAN DO JUST AS WELL WITH OBD2 INTERFACE WIH BLUETOOTH OR WIFI.tHE BEST IS THAT THE INTERFACE HAS A LEAD WITH USB THAT YOU PLUG DIRECT IN TO THE LAPTOP OR A PAD.tHE REAL TOOL IS THE OBD2 SOFTWARE THAT YOU DOWNLOAD TO THE PAD OR LAPTOP.
Partially true...
The problem is, some softwares will expect to see certain interfaces connected to the computer, and will only work with those... though there is work around for some...
But yes, I get what you mean...
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Olá. Você é português?
Sim...
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Thanks!
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Please help me
Already answered...
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Very impressive video but it doesn't feel right to "play"/repair security relevant things this way...
I only played with "data"... have not touched anything else... if it fails, will just trigger an airbag light again...
Is like when you clearly crash data...🤷♂️
Thank you for watching and for your comment!
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how u knew its channel 9 16:29
and ive been watching all your airbag videos one by one, cuz i will be working in a garage next month and its really helpful and educational
@@MWGame1
That's great... wish you the best!
Thank you for watching and for your comment!
A airbag sensor has a resister inside and a shock switch why did you not test it with a multimeter because its 99% just corroded connections as they get damp clean connections cover in grease give car back within a hour
Again you prove you dont know what you are talking about with comments like that...
These are pressure sensors... very sensitive pressure sensors, that detect air pressure changes in case of an impact that deforms the chassis... is not resistors and switches...
But why I'm explaining you that, you are very smart and know it all...
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