No start because of Doorhandle!

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  • čas přidán 26. 08. 2024
  • Diagnose of the comfort access system of a 2008 Bmw 3 series convertible.

Komentáře • 1,5K

  • @SouthMainAuto
    @SouthMainAuto Před 6 lety +329

    Wow! What a great video and demonstration Dan! Not working on BMW myself I found this very interesting. So I am curious after seeing this and want to run something by you.
    Let's say we have a car like this come in and identify the module is unplugged and realize plugging it in creates a no com and causes the no start. We go through the basics verify +, - and com lines at the module, yet see that the module is not pulling down the whole network and we now have the suspicion that it may be an input problem and perhaps not a faulty module. At that point instead of removing inputs one at a time could we just unplug it, jump the +,- and Com lines from the connector to the module and see if com is restored and if it is then chase down a faulty input? Only reason I ask is because what if there are 30 or more inputs and we de-pin them all one at a time just to find out it is still a no com, or perhaps the rare scenario where there are 2 bad inputs?
    By all means not criticizing your work and I do love your approach but really would like to know your thoughts on this.
    BTW stayed up WAYYYYYY past my bed time watching this! You have a great way of making it very interesting to watch!!
    -Eric O.

    • @SouthMainAuto
      @SouthMainAuto Před 6 lety +31

      Also one more thing I guess I assumed the K line stayed good with Comfort Access Module plugged in or is hat a bad assumption? I see it was tested unplugged proving wire integrity. Wait I think I have been up to long, must be with it plugged in it pulled down the whole K line right? Oyeee... I am going to bed...

    • @Diagnosedan
      @Diagnosedan  Před 6 lety +158

      South Main Auto Repair, Eric Wow you made me read a lot! Must be the longest comment ever🤣. I understand your question. This is where knowlege of the system playes a role. Let me give a simple Example. When you check a hall sensor you know what your looking for, a power/ ground and a signal. But when your doing checks and you see a ground where your expecting a power, you know something must be wrong.
      I measured the Lin-wires on this module and wasn't seeing what i expected. Of course you don't start out by unplugging all the wires but you can do some measurements first starting out with the wires/pins that could cause your symptoms😉.
      Wow i suddenly realise this must be the longest answer on a comment so Far for me, and i just woke up🤣🤣.Thanks for your comment Eric i appreciate it!👍

    • @smms1276
      @smms1276 Před 6 lety +8

      SWEEEET COMMENT 🚹 👍

    • @jhauna1
      @jhauna1 Před 6 lety +6

      Hey Eric I think it would be the same result weather you use a jumper leads to re power the module and reconnect the network or jus unplug the inputs. The fact that normal functions returns and we agree at this point there is an input issue, we jus don’t know which one. So either approach would end up with the same result.

    • @roadkill5333
      @roadkill5333 Před 6 lety +38

      South Main Auto Repair...I guess that is a valid question, but still leaves a very important piece of information unanswered!!
      Not knowing the very accessory exists on the vehicle, and then not seeing a communication with that specific module, then even going as far as even checking for the operation of the accessory that is causing a problem, would lead most if not pretty much all techs to skip over this particular problem!! Even when the module was working and the offending input was unplugged, the module still didn't show a trouble code! How can you even get to the point that you would continue to inspect for a problem, when the problem doesn't even appear to be present??
      I once had a friend call for advice, when his truck failed to start, and a battery replacement, and then a starter replacement, and then a starter solenoid replacement, didn't cure his problems, and the truck never would start. I suggested that his A/C compressor was bad, and he explained that it hadn't worked in years, how could that be a problem, now? It turns out the compressor locked up, years ago. Then the bearing around the pulley locked up, and the locked compressor wouldn't let the engine turn! I expect it was just experience that led me to that conclusion. Even though I had never personally experienced that problem! Did some info from your experience start you looking in the direction of a problem that didn't even appear to exist? The info about the option only existing on cars with the lines on the door handle, that's like knowing the secret ingredient in grandmas secret soup recipe!! The car won't start, and you thought "MAYBE THE DOOR HANDLE, THAT DONT APPEAR ON THE SCAN TOOL, IS BAD"! Tell us, how long did you look for this issue?? How many other paths did you try first?? How many people did you want to slap, until you figured out the problem?? If fixing this problem would have saved my life, I'd be dead!! You are a magician Dan!! Very much entertaining to watch, but even more enlightening!! I just feel smarter, watching these vids!!
      To quote someone pretty famous: "WELL, THERES YOUR PROBLEM RIGHT THERE, LADY"!

  • @nickv4073
    @nickv4073 Před 4 lety +235

    Now I understand where the "comfort" comes from. BMW's make your wallet much lighter and easier to carry around.

    • @greebj
      @greebj Před 4 lety +28

      The pleather interior must be very comfortable to sit in while you wait for the tow truck. Unless of course the car has locked you outside of it

    • @towardsthelight220
      @towardsthelight220 Před 4 lety +2

      @@greebj lol

    • @nuvisionprinting
      @nuvisionprinting Před 4 lety +4

      In Australia we have an easy solution to this. Throw the driver with the car out of your work shop!

    • @TheTruthSeeker756
      @TheTruthSeeker756 Před 4 lety +4

      Amen brother. I don’t need a fancy door handle that will cost me big bucks to fix

    • @ufartface
      @ufartface Před 3 lety +1

      @@TheTruthSeeker756 and there are starving children in the world- thanks bmw- Bring More Wallet

  • @djr3485
    @djr3485 Před 6 lety +89

    A true professional with a very clear teaching style - really enjoy listening to you talk us through the problem methodically. Great to see the testing and proving of components not just parts swapping.

    • @Diagnosedan
      @Diagnosedan  Před 6 lety +4

      DJ R Thank you for your Nice comment!👍

  • @richardmounfield7822
    @richardmounfield7822 Před 6 lety +26

    Super diagnosis on this car ,explaining this to the customer would be difficult. Without watching the video most people would have a hard time accepting this as the cause of a no start well done, regards Rich.

    • @Diagnosedan
      @Diagnosedan  Před 6 lety +6

      Richard Mounfield, Yes exactly, people often think you just read the codes and the scanner just tells you what's wrong with the car. In this case i can tell to go watch the Video!🤣🤣

  • @stuartcochrane2659
    @stuartcochrane2659 Před 4 lety +7

    You are a true artist. Having worked in dealerships for years and always being pushed for time and to make money for the company. year I know excuses. love the way you explain why you are following the steps you take and your diagnostic techniques.

  • @harold6863
    @harold6863 Před 5 lety +26

    I had this fault in my BMW Master Technician qualification in 2010. In the Uk we have to re-qualify every 3 years or lose it. I found the fault in 20 minutes. It’s all a matter of understanding the functionality before diving in.

    • @deaddoll1361
      @deaddoll1361 Před 4 lety

      @ferkemall It's about understanding car manufacturers exist to sell cars and they put whistles and bells on them to attract buyers, who generally aren't car mechanics or technicians. Once one manufacturer adds something, their competitors have to follow suit. Also, a lot of modern cars don't give any trouble compared to those made 40 or 50 years ago, especially in places like the U.K. and they're a lot safer and better to drive.

    • @josepeixoto3384
      @josepeixoto3384 Před 3 lety

      Wow,lots of bms out there with this problem then... and other similar problems too... lol.... avoid!!!! avoid!!!

  • @anthonygriff668
    @anthonygriff668 Před 3 lety +6

    I'm a bit late to the party with this one because I've only recently discovered your channel. Just wanted to say that I salute you for always going the extra mile and not admitting defeat. It's so refreshing in this day and age when you take your car to a garage and they simply say "Everything's showing normal. We can't find a fault." You do great videos.

  • @darkbyte2005
    @darkbyte2005 Před 4 lety +24

    Absolutely mind blowing, brilliant detective work...

    • @jamiesmith6838
      @jamiesmith6838 Před 4 lety +1

      Yes! But, think of all the man-hours! Aka money pit. SMH

  • @bng2679
    @bng2679 Před 3 lety +4

    I must say this world need more mechanic like you. This determination to diagnose issue is amazing.

  • @lukecartwright1803
    @lukecartwright1803 Před 6 lety +21

    Incredible. I just found your channel 2 days ago. The things i have learned in just 2 days!!!

    • @Diagnosedan
      @Diagnosedan  Před 6 lety +4

      luke cartwright, this is a great comment, you made my day.
      This is why i make video's!

  • @chewykarma
    @chewykarma Před 4 lety +5

    I used to work on auto training videos for aftermarket techs. They were hard work, very time consuming, and not nearly as good as these. Cannot begin to thank Dan enough for the thought, effort, and excellence of these tutorials. I intend to watch each and every one.

  • @TheGsowens32
    @TheGsowens32 Před 4 lety +4

    I'm no mechanic but every time I watch your videos I'm so amazed at how awesome you are with vehicles.

  • @neilmurphy845
    @neilmurphy845 Před 4 lety +38

    Never did I think a time would come when a door handle would cause a no strart

    • @Hitman-ds1ei
      @Hitman-ds1ei Před 4 lety +2

      Yep with you on that but I did witness a $4.5M loader not start for 3 days after a service, what a revelation when turned out to be washers fluid empty as last of it used in running checks then once shutdown would not start as was " a safety interlock" go figure ! Pays to think outside the box like Dan does I guess

    • @greebj
      @greebj Před 4 lety +3

      This particular example of abonimable fault tolerance in the circuit design aside, I think it's lawyers more than anything else that is responsible for the frequency of automotive function self-terminations: "if we can't be sure it's working properly, disable the entire car to avoid liability, because nothing could possibly happen that could be considered our fault if the car is an immobile unresponsive deadweight."

    • @JUDALATION
      @JUDALATION Před 4 lety +2

      You obviously have never owned a BMW...

    • @RuralTowner
      @RuralTowner Před 4 lety +1

      Good intent I suppose as a safety. But bad bad execution. Was a dark day when engineers decided to interconnect non-vital systems to vital ones. This is why I like my 1-wire vital-to-igntion 80s VW diesel. Only catastrophic engine failure could leave me stranded. Otherwise a fairly basic tool set kept with me along with small minor extra bits like wires or the odd bolt...hell even some rope for replacing a V-belt IF it goes...& I'm good to go.

    • @Stoney3K
      @Stoney3K Před 3 lety

      @@JUDALATION Or a Tesla. I'm even more surprised that this caused a no-start condition as a result of a dumb input which doesn't throw a code. You'd expect any failure that inhibits the car to start to have some kind of diagnostic.

  • @revinot
    @revinot Před 4 lety +9

    WOW great diagnostics and explanation, just imagine being on holiday far away from home and a door handle fault on your car leaves you stranded :-(

  • @jothain
    @jothain Před 3 lety +2

    Gotta love real pros. I remember having some fault in my car in 90's. I heard about older car electrician (he was actually referred with that title) in very remote place. I drove there and guy greeted me and drove car into his very small workshop. Place was filled with diagnostic tools that I very rarely had seen in any bigger workshops. I loved how the guy opened hood and looked for it for a while and told me "Hold, on this additional grounding seems to be work of mine". He looked the car plate and went to check out his files. Came back in couple of minutes and said "Yes, this car has been here before and I've indeed made additional grounding to alternator because of noise that created havoc on car's ECU". He literally explained every detail he had done and first checked that his repair is still good. It was and then he proceeded diagnosing car and was done within about 5mins of scoping. He showed me poor labda wiring he found and showed me how signals should look. Then he said that I actually have part for it and if he wants me to install it. Whole deal took I think bit less than hour and car was fixed. First shop I went and told symptoms they actually said that they're unlikely to find problem for it and that they would try to replace couple of components without warranty (kudos for them being honest). Second shop mentioned that they would find the problem, but they weren't specialized in such problems and it would likely be costly repair and told me about this car electrician. I also remember during that time that there was talk about the coming common-rail diesels and this older electrician told me that he was already doing education for them as he suspected that there weren't going to be specialist for them in a while. For sure that statement seemed to be 100% correct. This older guy had quite steep hourly wage, but because of his expertise that really glowed all over him, I would've paid even more and happily 😀

  • @markharrisllb
    @markharrisllb Před 3 lety

    I spent the first 60 years 4 months of my life thinking I wasn’t interested in car electronics, you’ve proved me wrong.

  • @KillJD
    @KillJD Před 6 lety +9

    Hey Dan, thanks for this, man. Even though most of us may never get this exact same problem, the way you went about diagnosing it will help regardless. I wish I could show this to every customer that walks in and thinks a fuse or oxygen sensor is the fix for everything!

    • @Diagnosedan
      @Diagnosedan  Před 6 lety +2

      KillJD, exactly! Customers always seem to think that we just plug in the scantool, and it just tells us what to do!🤣

  • @raymondferguson1935
    @raymondferguson1935 Před 6 lety +9

    A very good explanation of how to break the circuit down for testing . And not to panic information time and knowledge with a lot of patience are needed Thanks for sharing.

  • @AndsonSimbeye
    @AndsonSimbeye Před 7 dny +1

    I thank you Dandiagnose to be working together ❤❤🚗

  • @adrianvalbuena8158
    @adrianvalbuena8158 Před 4 lety +6

    Hey Dan, I teach electronics to auto technicians and I'm watching your videos as my grandma watched coocking TV programs. I really enjoy them!. Really appreciate your quality work.

  • @cobywalbrgclub
    @cobywalbrgclub Před 4 lety +33

    Great engineering, hope they dont make heart pacemakers too.

  • @dasarge84
    @dasarge84 Před 4 lety +11

    i seen something similar recently on a Benz S class, all these new electronics really can throw you in a tail spin of frustration if you dont have a way to check for canbus communication or a way to test the wires, it also goes to show even without the scope the trusty test light is still invaluable on these computers on wheels. great video and keep up the awesome content this is the kind of thing everyone needs to see when fixing modern cars

  • @engenhokas69
    @engenhokas69 Před 2 lety

    I don't comment often, but when i do it's because of something untrue, or because someone does a great job! Keep it up, it's nice to see good work from trustworthy people

  • @gilbertwildemans7345
    @gilbertwildemans7345 Před 6 lety +2

    And another good example of things you do not expect in car world! Great Video!👍

    • @Diagnosedan
      @Diagnosedan  Před 6 lety

      Gilbert Wildemans This was a crazy one😉

  • @ToyotatechDK
    @ToyotatechDK Před 5 lety +7

    This might be the best diagnose so far Dan. Incredible knowledge of how to do it. Greetings from Denmark 🇩🇰

  • @febbral
    @febbral Před 5 lety +3

    Dan , that was very good troubleshooting to find the fault, I came across your channel by accident and you are one of the best along with,Eric O, Ivan and Keith D on Long Island. Thanks.

    • @Diagnosedan
      @Diagnosedan  Před 5 lety

      That's a great compliment, Thank you. Great to have you here!

  • @Golo1949
    @Golo1949 Před 3 lety

    Dan you are by far the best on the web, I hope you charge plenty of money for your expertise. Another brilliant video.

  • @soarsbrokenchains7527
    @soarsbrokenchains7527 Před 4 lety +1

    Great video , I couldn’t help but notice the bloody knuckle too.....just like me. Thanks for all the tips as I’m seeing can bus problems in so many cars.👍🏻

  • @s38e30
    @s38e30 Před 5 lety +6

    Hello Dan great video! I'm a tech as well and I had the pleasure of having a issue like this on a mk7 golf with kessy, but I had the pleasure of being the first to diag it. It was the same as yours except my gti was completely dead upon arrival the ignition didn't turn on as well , couldn't even scan the car for any faults. My mk7 had kessy and push start. So with nothing telling start access to turn on terminal 15 to turn on the ignition switch I couldn't even scan the car. I looked at wiring diagrams, I manually activated terminal 15 at the relay with a jumper wire, was able to get communication and basically performed the same steps as you to find the problem.I lost my shirt on that job, but I did find the problem afterwards. A short in the comunication wiring at the drivers door module took down the whole comfort bus not.

    • @Diagnosedan
      @Diagnosedan  Před 5 lety +2

      Great find!💪
      I guess you are an expert on that system now!

  • @KuroAyase
    @KuroAyase Před 5 lety +15

    I have watched a lot of your videos and I am even more amazed by your work. Different cars, different problems all the time. Sure, sometimes there comes an odd ball to you that cannot be diagnosed after a lot of work. But it is hella amazing that you are able to find out such bizarre problem root cause like this door handle, or a ABS module wire touching an exhaust in some other video. I am hugely impressed by that. It takes a lot of hands on experience, time, a huge deal of patience, some good tools and access to the diagrams and data... Like wow. By watching all those videos, people are able to learn all kinds of interesting details. If needs come, I could use gained knowledge here on my Audi A3 8L from 2000. An outstanding job, and huge help to us all!! Thank you!! (BTW, greetings from Poland! :) )

    • @Diagnosedan
      @Diagnosedan  Před 5 lety +1

      Thanks! Your English is outstanding btw.👍

  • @jonathanrpu
    @jonathanrpu Před 4 lety +1

    Loved your diagnoses and explanation. ..........What a blooming nightmare of unnecessary heartache !

  • @jakemartin4305
    @jakemartin4305 Před rokem

    This is a prime example of why knowledge of the systems your working on is just as important as knowing your tools and how to use them

  • @RA-dd5mg
    @RA-dd5mg Před 5 lety +3

    The comfort access door handles have been a problem for years I’ve only seen them cause a parasitic draw nothing as detrimental as you’re example thanks for sharing. I see a lot of these door handle issues and the way I diagnose them is with a laser thermometer hit all the handles and the one with the temp a couple of degrees warmer than the others is the culprit unplug it and check your meter chances are the draw will be isolated. If it’s hot outside I’ll pull it in my bay before I leave for the day and check them in the am. I dig your oscilloscope with the included wiring diagrams I’ll have to add that to my Christmas list thanks again keep up the good work

    • @Diagnosedan
      @Diagnosedan  Před 5 lety +1

      Thanks Rick!

    • @artsnow8872
      @artsnow8872 Před 5 lety

      Diagnose Dan, perhaps you could make a video where you used an infrared thermometer to detect heat caused by faulty wiring, or component, drawing excessive current? A lot of people are not aware of this troubleshooting technique.

    • @flybobbie1449
      @flybobbie1449 Před 4 lety

      @@artsnow8872 I bought one of those thermometers when i saw someone use one to diagnose a miss fire on a motorbike cyl. , by measuring the down pipe temp.

  • @obsoleteprofessor2034
    @obsoleteprofessor2034 Před 4 lety +15

    Thousands of Euros spent and months of frustration...and the customer complained that the replacement handle is painted primer black...(?)

  • @graycleary
    @graycleary Před 2 lety +1

    I must pay you the compliment that I wish there were more people like you in the UK.

  • @compu85
    @compu85 Před 5 lety +2

    The touch entry / KESSY on early VW Touaregs also likes to wig out. The handles are ok, but the driver transistors in the KESSY module fail. Initially it causes a battery drain because the module won’t go to sleep. Eventually they short completely and blow some internal fuses in the KESSY module.
    Good news is the transistors are about $6 each. Beats $$$$$ for a new module at the dealer, plus shop time to reprogram all the keys.

    • @Diagnosedan
      @Diagnosedan  Před 5 lety +2

      That's great info!

    • @compu85
      @compu85 Před 5 lety +1

      @@Diagnosedan More info here: www.renntech.org/forums/topic/37055-keyless-kessy-entry-problem-fixed-after-5-dollars-and-1-hour-o/
      On the VW system the door handles have antennas in them too, not just touch sensors.

  • @syroboi3524
    @syroboi3524 Před 4 lety +8

    Honestly it makes sense to me. The car detects that someone is holding their hand on a door handle, and it won’t start. Since it’s not an automatic it cannot control gears so it must protect that person

    • @SuperMotoMe
      @SuperMotoMe Před 4 lety +1

      Even if that is meant to be, the real problem is not being able to fix the problem. Shame on BMW, don't they have highly paid mechanics? My bills seems to think so.

    • @josepeixoto3384
      @josepeixoto3384 Před 3 lety

      you found a way for this to make sense....i can see that in the future one more computer is needed there.... the door handles computer...

    • @syroboi3524
      @syroboi3524 Před 3 lety

      @@josepeixoto3384 meanwhile I got a job in BMW independent service. These cars have plenty of modules and data lines that are very expensive when they break

  • @burgerbirger2221
    @burgerbirger2221 Před 5 lety +8

    That is the problem with many workshops today, the electronics has gotten so advanced, they simply don't have the competence to fix the problem. Then they start to arbitrarily replace expensive components and the cost is mounting.

    • @Diagnosedan
      @Diagnosedan  Před 5 lety +1

      Thanks for watching!

    • @ROGUESPIRIT_
      @ROGUESPIRIT_ Před 4 lety

      Problem with the vehicles not the technicians. You clearly don't work on electrical problems.

    • @jothain
      @jothain Před 3 lety

      @@ROGUESPIRIT_ I disagree. If one changes components because of "feel" and not diagnosing problem, that simply means that technician isn't qualified for such repairs.

    • @ROGUESPIRIT_
      @ROGUESPIRIT_ Před 3 lety

      @@jothain you clearly dont even work on cars. let alone electrical problems. Dont stick your nose where it isnt welcome

    • @jothain
      @jothain Před 3 lety

      @@ROGUESPIRIT_ WTH? Why are you so butt hurt about that comment? Yeah I don't work with cars. I work in industry as as packaging machine mechanic, which involves some electrics. You definitely give impression that you're incompetent car electrician and swap components "blindfolded". My definition for that is poor expertise, I don't care what you happen to think 😂

  • @dennispapadopoulos4920

    Dan I’ve seen your video in the past and yesterday it saved me big time! I went to start the car and the steering symbol would come on and no ignition. After some time I remembered the video and I unplugged the CA module and wouldn’t you know it the car started right up! So in the next days I’ll troubleshoot it. Thank you 🙏🏻

  • @lupedelacruz4152
    @lupedelacruz4152 Před 9 měsíci

    So the other guys had the problem to the module but didn't do the extended work you did great great job Dan I learned something from you everyday amigo

  • @jusb1066
    @jusb1066 Před 6 lety +154

    bad design that a grounded wire short can disable a non important module that can take down the entire car

    • @Diagnosedan
      @Diagnosedan  Před 6 lety +27

      True, i think They never thought that doorhandle would short out either!

    • @jusb1066
      @jusb1066 Před 6 lety +13

      as we all know, any wire shorts, if they didnt, we wouldnt need fuses

    • @andrewthompsonuk1
      @andrewthompsonuk1 Před 5 lety +8

      It does not take much to make a BMW go complety whacky. Just leaving the hood open for a while makes my car display all sorts of failures in the dash as the dash wakes up while others are asleep.

    • @davidhall3747
      @davidhall3747 Před 5 lety +14

      That's what I was thinking. They should separate the non- essential networks from the critical network.

    • @VeteranofthePsychicWars
      @VeteranofthePsychicWars Před 5 lety +12

      It’s really just bad software, this would be an easy update to the module (for BMW to make).

  • @thecannetwork7559
    @thecannetwork7559 Před 5 lety +3

    Hi, i deal with these sorts of faults every day, i love my job its so much fun. Ive worked for myself for nearly 12 years but ive never seen or met anyone who goes as deep into diagnosis as me- except diagnoseDan. Great channel, very interesting.

    • @Diagnosedan
      @Diagnosedan  Před 5 lety +1

      Thanks for the great comment!😊👍

  • @MrGardman
    @MrGardman Před 5 lety +1

    Excellent work. Who would have thought a door handle problem could cause this.

  • @Dave-in-France
    @Dave-in-France Před 4 lety +2

    This is a fascinating diagnosis video. Just shows that there's no need to be frightened of electronic cars so long as you take a logical approach.

  • @josenildosilva1064
    @josenildosilva1064 Před 6 lety +8

    Unbelievable those kind of problem,have to be very patience to keep on the track.
    Tumb up always !

    • @Diagnosedan
      @Diagnosedan  Před 6 lety

      Josenildo Silva Thanks for the great comment😉

  • @abautoworks4674
    @abautoworks4674 Před 6 lety +8

    This reminded me of a video ScannerDanner did on an Audi S5, where the high pressure fuel pumps where shutting down because of a fault with an active engine mount. What can you say...German cars! And yet, I still like them.

    • @Diagnosedan
      @Diagnosedan  Před 6 lety +1

      AB Autoworks, Thanks for the comment, and for watching!👍

    • @MikkoRantalainen
      @MikkoRantalainen Před 4 lety

      I guess that would be acceptable behavior if all the modules are still accessible and there's a proper fault for the problem. If they need active engine mount, they probably need that thing. I assume there would be a bumb in the hood if the mount does not work correctly...

  • @talk2rony
    @talk2rony Před 4 lety +2

    Good Job Dan. I can understand the satisfaction you have after fixing the problem. Long ago I used to work on railway air condition and door system looking for electrical and electronic failure. Your work is reminding me of my past work and enjoyment i had while working on trains. .

  • @paulnewall6062
    @paulnewall6062 Před 3 lety

    Dan Dan Dan ! you are the go to man, this old dog loves the way you simplify the diagnostic process you make it look so easy and don’t just throw new parts on

  • @sherlock.homeless
    @sherlock.homeless Před 6 lety +5

    Priceless info here. Keep up the good work.

    • @Diagnosedan
      @Diagnosedan  Před 6 lety

      thanx for your nice comments!

    • @sherlock.homeless
      @sherlock.homeless Před 6 lety +1

      DiagnoseDan Not to forget that you give the opportunity to other fellow youtubers ( that take their time to comment your videos) to learn how to use their diagnostic equipment. 😈 Sorry, could not help myself on this one. 😁

  • @harrywilson4311
    @harrywilson4311 Před 6 lety +6

    Excellent diag! I must admit half way through i would of put money on a internal fault within the module. But going after the inputs I've never seen before! Great work genuis!

    • @Diagnosedan
      @Diagnosedan  Před 6 lety

      HazTech 1 Thanks!👍

    • @84sneaky
      @84sneaky Před 6 lety

      I guess that's where confirmation with use of a scope comes in handy to rule out module faults... to a point.
      The scope just paid for itself there! 🤑

    • @davidhoekje7842
      @davidhoekje7842 Před 5 lety +1

      Dan mentioned that a bunch of modules had been replaced during the first repair done by the shop and dealer, so that module may have already been replaced.

  • @MrAttoot
    @MrAttoot Před 3 lety +1

    You are the best advanced auto mechanic man I have ever seen .... Greetings from Egypt .

  • @techno-life2494
    @techno-life2494 Před 4 lety +1

    Great diagnostic work, I should say thin detective work)) very nice and fair

  • @gsowe01
    @gsowe01 Před 6 lety +4

    Great video , very informative. It seems to be the case that you need to check inputs when diagnosing LIN bus systems in addition to the powers and grounds.

  • @randylabong8066
    @randylabong8066 Před 4 lety +14

    No start because of door handle? Only in DIAGNOSEDAN❤❤

  • @ann-marienewbound9402
    @ann-marienewbound9402 Před 5 lety +1

    Heard of you via SMA channel. Eric O said you knew your stuff. He wasn’t wrong 👏🏻

  • @geechbadart
    @geechbadart Před rokem

    Diag Dan is the man !! Your videos have made me want to learn more and upgrade my scanner and finally get a scope

  • @davidhall3747
    @davidhall3747 Před 5 lety +5

    The Customer was ripped- off by those incompetent Technicians. They give the honest Car Techs a bad name.

  • @feddykoih
    @feddykoih Před 6 lety +4

    dan you were a pro.. im also a mechanic.. i have alot to learn from you. keep upload more video about how you solve those problem

    • @Diagnosedan
      @Diagnosedan  Před 6 lety

      feddykoih, Sure! Glad you like it💪

    • @chriswoodman5115
      @chriswoodman5115 Před 2 lety

      Hi Dan am struggling with peugeot 207 spark for 2 seconds and after that nothing please help thanx

  • @jeffwatts4264
    @jeffwatts4264 Před rokem

    great approach dan , love the videos , goes to show its not the diagnostic system that fixes the car , it just points you in the right direction

  • @PaulCTownsend
    @PaulCTownsend Před rokem

    Great info and Diagnosing Dan. I got to say it was interesting on how to ID a smart door handle and most of all how to remove the handle. Thank you.

  • @lovetolearn5253
    @lovetolearn5253 Před 6 lety +5

    I never thought the door handle. I was thinking power or ground anyways great stuff my dude

  • @JoesAutoElectric
    @JoesAutoElectric Před 6 lety +11

    Fantastic video! Strange that the short in the handle did not cause a fuse to blow.

    • @Diagnosedan
      @Diagnosedan  Před 6 lety +9

      Joe's Auto Electric Thank's!👍. That's proberbly because the shorted wire is a Lin-communication wire. These communicate between 12 and 0 volts. So these wires are designed to be pulled to ground.😉

    • @bigfootemobileauto9734
      @bigfootemobileauto9734 Před 5 lety +1

      Well that explains a lot, I’ll have to remember that for the future! Probably will forget though, the older I get the harder it is to remember. Always interesting & wonderful videos Dan thanks!

  • @christdied4us
    @christdied4us Před 3 lety +1

    WOW!! You are a wizard , if I just had the electrical knowledge you have , I have been in the automotive field for several years and t always wanted to improve my electrical knowledge watching you sure does help.. Thanks so much for your videos...

  • @richardgoldring2988
    @richardgoldring2988 Před 10 měsíci

    Very good to know that the proper technicians are still around and it is great to work through the stages with your discussion too

  • @MikeZak101
    @MikeZak101 Před 4 lety +16

    i would like to take this moment to thank BMW or developing another masterpiece of an electrical fault

    • @fisqual
      @fisqual Před 4 lety

      So... I agree with this 100 percent. And BMWs are terrible cars. ... But I also noticed that the paint texture is slightly less smooth silky BMW on the faulty side than the working side. So I suspect this could have been either removed and replaced before or survived the crash but the impact jarred it enough that it just happened to die eventually.

    • @kevinbradley172
      @kevinbradley172 Před 4 lety +1

      From my observation of BMW paint I think its more likely the less silky smooth paint is original !

  • @wearethe80s4sure
    @wearethe80s4sure Před 5 lety +4

    Dan, another great video! Door handle. After watching, I went out to my 750li 06. Having BMW do soft door recall. With the key fob near door, put my fingers in drivers side door handle, locks unlocked without pressing button. Repeated the rear two doors and same thing, they opened. Went to passenger front door, slid fingers in handle, nothing! So my 750 is in driveway and wont start when I depress start button, like the gold car you were working on. Now I have to find where the module is that you found on the gold BMW? Figured also that I had a parasitic draw on my battery. Charge up, next day low. My car is equipped with a fridge between the back seats, when I got car back from dealer, I noticed if I went into climate and rear fridge it was locked in the on position so I couldnt turn it off(thinking this was drawing down my battery). Now, one other thing I noticed is that the steering wheel will go in and out, but not up and down. And not sure if the steering wheel locks?? PS I call this summer 'the BMW endless summer'. This car has ruined our summer vacations. The car is in such great shape, although if i don't figure it out? I will have to take a big loss and scrap it.

    • @Diagnosedan
      @Diagnosedan  Před 5 lety +3

      It's proberbly easier to disconnect the doorhandle to check if the car starts again. It has the same effect. I guess there are some video's on YT how to get the doorhandle out.

    • @ufartface
      @ufartface Před 3 lety

      if you wanted nice summer vacations - you would have never bought a bmw

    • @josepeixoto3384
      @josepeixoto3384 Před 3 lety

      It pays to buy the best,it's like buying those expensive cuban cigars...

  • @jimmyjordan435
    @jimmyjordan435 Před 6 lety +1

    excellent demo and professional display

  • @golfnut533
    @golfnut533 Před rokem

    Great analysis and fix. Where you shop techs have the advantage of us diy guys is that you can get hold of the wiring diagrams where we can’t. 👍

  • @steventaylor5687
    @steventaylor5687 Před 5 lety +29

    Dan do you know if the customer got a refund from the other garages for all the parts they replaced that were not faulty? If that came from the BMW dealership and they said it was fixed and all they did was unplug that module, I would be really pissed off.

    • @Diagnosedan
      @Diagnosedan  Před 5 lety +12

      No refund😥

    • @TairnKA
      @TairnKA Před 4 lety +2

      I would have considered that fraud except they would say it came off on its own.

    • @jamiesmith6838
      @jamiesmith6838 Před 4 lety +2

      @@TairnKA I agree! But, they did actually do something? Granted, it didn't fix the problem! In such a case you either contact BMW headquarters directly or your State's Consumer Affairs?
      BMW AG simply has to do better.

    • @Cheepchipsable
      @Cheepchipsable Před 4 lety +3

      @@jamiesmith6838 Well, they apparently worked out the problematic module. Maybe someone used the word "fixed" but they didn't mean "repaired", maybe they were referring to they "fixed" the not start issue.
      I assume whoever unplugged it knew something was up with the module. Perhaps manager just didn't have a clue, or it was poorly communicated.

    • @jamiesmith6838
      @jamiesmith6838 Před 4 lety +1

      @@Cheepchipsable Anything is possible?
      How much does that machine cost again?
      Not even the BMW technicians can keep up with all the tech compounded yearly in their own cars apparently?
      $47k and a faulty door lock module shuts the entire car down?? I can't in all sincerity simply dismiss such a blunder like that. That comes pretty close to their sudden and inexplicably catching fire while parked?!

  • @billrimmer5596
    @billrimmer5596 Před 6 lety +14

    Besides your super ability, the most important thing was that u had a good one to compare it to. I know there was a tremendous amount of work that we didn’t c due to editing and time constraints. The short to ground in the handle was enough to cause a battery drain, but not enough to blow a fuse. Their would have been a draw on that fuse/module that would not have timed out. That would have been another path to the problem. Getting Eric O. to write a paragraph is sure fire evidence that your channel will soon go thru the roof. Now if New Level comments? This is definitely a teachers teacher channel

    • @Diagnosedan
      @Diagnosedan  Před 6 lety +1

      That's a great comment Bill, Thanks for watching!

    • @curlymyhero
      @curlymyhero Před 5 lety

      Bill, regarding that BImmer battery drain the 1st process could have been disconnected battery neg. and reconnect with a volt meter between it. Any volts above say above .05 should indicate a short somewhere in the system. The problem is on Eurocars the computers 'sleep' for 30 minutes after the car is shut off and opening the trunk reignites the system again. On my Mercedes I get 11 volts on ALL my cars when I do that but they eventually shut off... Regardless I get lousy battery life out of these cars.

  • @svenramsey-hl3mp
    @svenramsey-hl3mp Před rokem

    Good diagnosis. Had this problem on several BMW’s. It’s amazing how so many mechanics just throw parts at cars without doing the correct diagnostic procedure steps. In my experience as a BMW tech however I have found through experience sometimes with this customer complaint and no faults with a vehicle with CA (Comfort Access) it is much easier just to disconnect the door handles one by one (drivers door first as most used) and re-test from there. But you did an extremely good job of explaining step by step of what you did to prove your diagnosis 👍

  • @victoraguilera1341
    @victoraguilera1341 Před 5 lety +1

    Only a true technician could reconize another technician u are a legend I could imagen how hard it was

    • @Diagnosedan
      @Diagnosedan  Před 5 lety

      Thanks Victor! These cases are the best!😉

  • @sandyande
    @sandyande Před 6 lety +3

    Brillant sir your a genius!!! sandy

    • @Diagnosedan
      @Diagnosedan  Před 6 lety

      You make my day! 😂😂😂😂😂

  • @tracybeme1597
    @tracybeme1597 Před 4 lety +19

    Let me guess. The car won't start because a lug nut is loose.

    • @SkzDaniel
      @SkzDaniel Před 4 lety

      Hahahhahah!! lol wtf!! Thats COMEDY!! Although that would be a pretty good safety feature.

    • @ufartface
      @ufartface Před 3 lety +1

      worse than that- it wont start because theres a bug splat on the windshield

  • @abdoal3346
    @abdoal3346 Před 4 lety

    Even the factory can't solve that.. you r a smart guy.. keep up the good work Dan

  • @StefanBergman
    @StefanBergman Před 4 lety

    Im all in tears Dan. You make diagnose look so easy. You must be the smartest guy on the internet! How did you learn all this?? F*ck i love your channel!

  • @josepeixoto3384
    @josepeixoto3384 Před 5 lety +8

    16 different electronic modules on the screen?! al that crap to make a piston go up and down? they got us bydaballzz...

    • @Diagnosedan
      @Diagnosedan  Před 5 lety +2

      No, to open the doors aswell😉

    • @joevignolor4u949
      @joevignolor4u949 Před 5 lety +3

      The owner elected to buy a high end luxury car with all those computerized features in there. He probably got all excited looking at the advertising and marketing and started thinking about how much his wife or girlfriend (or both) would be impressed by all the bells and whistles. He got what he paid for.

    • @lorenzobeckmann3736
      @lorenzobeckmann3736 Před 5 lety

      yes, makes me want to buy and fix-up a 300E. say goodby to EVER SO MANY POTENTIAL SHUTDOWNS

    • @Cheepchipsable
      @Cheepchipsable Před 4 lety

      These days the cars welcome you by name and turn cabin control on without you touching anything - quite annoying when trying to clean the car.

  • @whysoserious447
    @whysoserious447 Před 5 lety +5

    Wow! A door handle that is Amazing...How that can do that.

    • @Diagnosedan
      @Diagnosedan  Před 5 lety +2

      😉

    • @jdrs4214
      @jdrs4214 Před 4 lety +1

      It’s called expensive, over-engineered junk!!! There’s no need for a “smart detector door handle.” A mechanical door handle does the job just fine, or even better, and would NEVER short out, and disable the car like this one did.

  • @yanzriteauto9610
    @yanzriteauto9610 Před 6 lety +2

    Wow!! Doesn’t get better than this. Great work!

  • @jameskeeler6321
    @jameskeeler6321 Před 3 lety

    Another great diagnosis! I can tell by your knuckles you battle those automobiles with more than your brains.

  • @TheMickelsen
    @TheMickelsen Před 6 lety +25

    What made you decide not to condemn the comfort module and go after inputs? Seems like most would replace the module if you had communication, powers and grounds.

    • @Diagnosedan
      @Diagnosedan  Před 6 lety +16

      Eric Mickelsen That is a very good question!.
      I wondered why the car would start with the module disconnected, and not with the module connected.
      Nothing happened to the Can-com lines, so this could not cause the no-start.
      Than i started taking a look at the white wires. These wires are also communication wires (Lin), but i did not go in to this in the video!
      Then i realised there was a problem in these lines as you can see in the video!
      Sharp question!

    • @crank3646
      @crank3646 Před 6 lety +5

      I scrolled down to much for this question and answer . Lets up-vote it ! :)

    • @alexmessina7652
      @alexmessina7652 Před 6 lety +3

      Brilliant. The key (sorry about the pun) here is that with the module plugged in or not plugged in there was not change in the CAN signal. So not a definite module problem. Dan decided to look elsewhere before condemning the module. Very good call. Like others, I would have ignored the unchanged signal on the CAN lines and changed the module ... and been wrong!

    • @tgoodm1
      @tgoodm1 Před 6 lety +1

      Alex Messina I'm searching high and low on Mitchell for the wiring diagram of the Comfort Access Module showing the inputs from the door antennas. I can't find it. Anyone else?

    • @franciscovera828
      @franciscovera828 Před 5 lety

      Crank me too

  • @fuckjewtube69
    @fuckjewtube69 Před 5 lety +3

    Hope you got paid properly for that.

  • @hassansalimsaid312
    @hassansalimsaid312 Před 6 lety +2

    Amazing Dan...the way you follow the root cause.

  • @ferko3
    @ferko3 Před 3 lety

    Hi Dan and thank you very much for your input!
    I'm not a mechanic but a musician but recently I found some of your videos and I'm watching them with pleasure.
    I like your logic and way of thinking.

  • @TairnKA
    @TairnKA Před 4 lety +4

    What I'm curious about, is what caused the damage in the first place?

    • @TonyRule
      @TonyRule Před 4 lety

      Damage? Just a faulty component in the door handle circuitry.

  • @revinot
    @revinot Před 4 lety +5

    Comfort access car owner: "Mechanic please I need your help, Im late for a meeting and my car wont start"
    Mechanic: "Its your door handle, you need to replace it"
    Comfort access car owner:"I dont think you heard me; I said my car wont start"
    Mechanic: "Yup, door handle" :-)

  • @markblundell9461
    @markblundell9461 Před 4 lety

    Mind blowing! Absolutely Mind blowing! A f&$@'n door handle.! I shake my head......... Well done Dan.

  • @gezdipz5425
    @gezdipz5425 Před 2 lety

    Not long found these vids time for a binge watch,keep up the brilliant content 👌

  • @HarlowBAshur
    @HarlowBAshur Před 6 lety +3

    Hey BMW, where's your FMEA? Every wire, every module.

    • @Diagnosedan
      @Diagnosedan  Před 6 lety

      HarlowBAshur 🤣🤣

    • @richardhemingway6084
      @richardhemingway6084 Před 3 lety

      Yup. You would think that a software routine, could easily pick up a constant operation and flag it on the CANBUS at least.

  • @johnmehaffey9953
    @johnmehaffey9953 Před 4 lety +4

    BMW over engineered pos

    • @dr-mn7ld
      @dr-mn7ld Před 4 lety

      Short some random wires on a Toyota and you'll have the same result.

  • @hasebhawrami6742
    @hasebhawrami6742 Před 3 lety

    What a fantastic video!!!
    I had the same problem, nobody knew what was the cause.
    Now I know ..
    What a relief.
    Thanks a lot
    Carry onnnnn

  • @MrRedragon64
    @MrRedragon64 Před 4 lety

    Exceptional diagnostics and clear explanations Dan!

  • @user-dz2jy7ss2g
    @user-dz2jy7ss2g Před 2 lety

    A genuine professional .. a pleasure watching your videos

  • @kendom33
    @kendom33 Před rokem

    That was a crazy one Dan. What great fault finding. Thank you

  • @curtishouze1471
    @curtishouze1471 Před 2 lety

    This was a good video! Who would have thought that a comfort door handle would have been the smoking gun.

  • @christianthyde3544
    @christianthyde3544 Před rokem +1

    This video was great, it helped me to get my Bmw e92 2010 up and running !!! Big thanks @diagnosedan !!!

  • @Airman..
    @Airman.. Před 6 lety +2

    Brilliant Dan!

    • @Diagnosedan
      @Diagnosedan  Před 6 lety

      Airman, Thanks for the comment buddy it's appreciated!😁

  • @simonjones7785
    @simonjones7785 Před rokem

    you are amazing dan you break down the big problem into little bits and there you go problem found and isolated

  • @jsmotorgroup9446
    @jsmotorgroup9446 Před 2 lety

    Genius. Please keep up your top work. This video was a pleasure to watch.

  • @actuallypaulstanley
    @actuallypaulstanley Před 3 lety

    Have no mechanical experience, but have watched so many of your videos after a redirect from another channel. Have found your videos interesting due to the analysis of each problem, logical approach with good communication as to why each step was followed. Thank you.