Thank you! This was the most interesting bonus footage ever! It was very smart from you to suspect from the scanner connection affecting the communication between modules, I have no idea how you figure that out! Cheers!
The bonus footage was nuts lol glad you figured it out or it could have gotten very frustrating and expensive 🙈 Never mind the speed sensor, all that rust after 20k I think I'd be crying!! Good job Ivan!
Ivan sir. This is by far one of your best one out there. It was funny because every new turn that came up I was talking to the screen, do this or do that and you did. I must be getting use to you. What I mean to say is, you really follow through here and your thought process was right on the money, especially with the problem with the Scanner itself. Very well done and very well execution of completion. Each step was perfection. Not many people out there can think on their feet. I hope you follow up with Launch and GM and this also proves why more than one scanner is needed to diagnose cars. I wonder, you have an autel scanner, does it have a BT connection as in the 906bt model. If so, does that react with this vehicle in the same way. Really Ivan, thanks for sharing this one.
Impressed that you pinpointed the diag tool as the problem so quickly. It would be easy to chase down into a rabbit hole especially after the original complaint involved some of the same illuminated warnings.
Your patience is admirable and your troubleshooting skills are excellent. You also speak the truth: crappy quality abounds, but the paint job is real nice. :-)
Oh man that was insane. Would have took me a bit longer to figure out it was the scan tool causing the issue and would have thrown me through a loop. Good catch that was insane. Hope all is well over on the other side of the mountain!
Wow! I've worked on aircraft where the test equipment introduces faults. You stayed vigilant and kept those electrons in line. :-) Or was that "hole flow?" I loved this, Ivan. Thanks.
Ivan, I noticed the same glitch with the Launch within the GM program. I'm using the same scanner on a 2016 Chevy Express. Besides the buss communication issues, I also had issues with the Special Functions (steering angle reset and brake position calibration) on the same vehicle. Steering angle reset would complete successfully but wouldn't actually do anything. However the Brake position calibration seems to be corrupt as it fails due to a AC pressure too high fault. For what its worth, I contacted Launch within the scanner, sent them the vehicle report and described these issues. Hopefully the next GM update will have this addressed...
Launch BT dongle might add a just bit more capacitance / inductance to the HS com line and thus the fault. The actual fault might be the GMC / GM designers. There should be more tolerance for signal distortions.
I had the same thing happen with the traction control on a 2004 Hyundai Santa Fe AWD when the Verus was hooked up to the DLC connector and looking at live data while driving. Note: I have the Snap-On Verus Edge with Bluetooth dongle. Don’t remember this problem with my old Modis w/o Bluetooth.
Wow! That's freaky! Really thought you had a 2nd issue there! Glad you figured it out. .. so darn logical Ivan! Could've been pulling your hair out on that one! Lol
if the dongle/tester has no cable or a short cable, try adding an OBDII extension cable with a big choke on each end. That gets the silly dongle spewing wifi/bluetooth RF and RFI away from the connector, it could be noise entering other bus lines causing modules using them to go stupid or even the can bus itself. corded tools, same can happen and leaky ignition systems can really whack things out, don't ask how I know :))
I have an idea why this communication problem occured: The Traction control has the highest priority on the CAN-Bus because it's security relevant. If your scanner talks too fast to the system, some data frames on the CAN-Communication getting lost, because the bus is physically too slow and overloaded with your fast scan-tool. then you'll get these problems. -->use a slow talking scanner on these vehicles :) Recently i had the same on a Volkswagen: The reason was im my case the ECM. The ECM tryed to trigger the check-engine-light on the dash. In the same time, the communication on the CAN-Bus was a very short period of time interrupted because the ECM's was trying to set the CEL --> i've got a ABS/ESP warning on the dash and no check engine light :). The reason was a faulty coolant temperature sensor at the ECM. Haha! BR from Switzerland, Matthias
Great bonus footage. I had the same problem with an OTC Genisys that would disable ABS/Traction control while testing and trip codes on some GM vans, and trucks, 04-14. Quite annoying. I stopped using it in 15 after their update still didn't fix it. Let us know if Diagun gets back to you on this.
When testing electronic components passively with a multimeter, it is usually more relevant and consistent to do a diode measurement. Even across different brands of multimeters, the results will not vary very much in contrast with resistance measurements, which highly depends on the brand, type and settings of multimeter. Positive terminal to ground and negative terminal to signal usually gives the most relevant results.
Ivan, that was interesting to find the scanner was the problem by the way i was almost going to order one but now i am not sure thanks for the video/info. cheeeeers
I remember when I first got my MVP Scanner I plugged it into a Mitsubishi Outlander to do a key & the dash lit up like an Xmas Tree! Long story short, it failed to program in a new key so I had to Clone one & the car wouldn't even start. I thought I'd bricked the Immobiliser & my heart was in my Mouth. Used the Autel(back when it used to actually work) cleared the codes & all was good(PHEW!)
I get the same kind of bug thing with my Vauxhall Astra H, I have the same Launch model as yours and when I have it plugged in I get an imobiliser module error fault code, I find I have to clear the fault codes, turn the car off and remove the launch dongle before turning the car back on.
I have a old innova code reader i use when i go on test drives and for checking monitors and on the chevy cruze it causes the stabilitrack light to come on as soon as its plugged in. if you unplug it and turn the key off and back on the light is off. never stores any codes when checking with another scan tool.
Hey Ivan I had this same issue! I had a BlueDriver in my 2014 Ram and it kept throwing tranny codes and pcm codes. Couldn't figure it out for the life of me until one day I removed it and used my Autel. Never had an issue since. I have since resorted to using wired OBD plugs only and avoid bluetooth.
That happens on GM with my Autel and my Snap-on not on them all just a few. It had my scratch my head and then I realized it was just the scanner causing the issue. I unplugged the dongles and did a key cycle and Stabilitrak light back to normal. Now I just ignore the Stabilitrak light if it comes on and wasn't there before. Was too busy to investigate anymore, just know it happens. It's done it a few times on my wife's 2014 Traverse also. I was screaming at you it's the scan tool disconnect it but eventually you figures it out as I knew you would 😎
@@PineHollowAutoDiagnostics There is a TSB UI Bulletin #108D Upfitter Bulletin Aftermarket ALDC or DLC Interrface Devices Causing Multiple Issues and Stabilitrak messages and codes is one of them.
On my 2002 Grand Cherokee, I had my Actron scanner plugged in and looking at some PIDs. Drove it to Walmart like that, and as soon as I shut it off (with the scanner still plugged in and reading), the body control module went completely sideways. No locks, couldn't put up my windows, cluster and information center were stuck on. I can't remember if some lighting functions were acting weird, as well. It wasn't until I pulled the fuse or a relay for the BCM and plugged it back in that stuff went back to normal.
Hi Ivan: Just viewing one of your old videos. Had nearly the same thing happen with my 2012 Gmc Sierra 1500. When i plug my Thinkscan Plus S4 scanner for my Evap Code p0442, Traction control, stabilitrack codes light the cluster. When you disconnect and restart it goes way. Weird!
I've had this issue on Autel's connected to an 06 impala, but it was only one specific 06 impala. It would cause the lights on the dash to freak out, but unplugged was no problems. Tested on another 06 impala with same engine, and no issue. Very odd
I think the launch isn't allowing the bus signals to return between the modules. It's taking in more then it gives back. A glitch on the launch scanner nonetheless. Overall great vid learned ways to check a bad sensor. Having a known good always helps seeing the trouble you had removing the old sensor. Swapping sensors maybe a bad idea while diagnosing. Till the next notification! Thanks PHAD!
My thought exactly, looks like Launch is speaking/communicating out of turn on the network or maybe is not passing through data packets that are not destined for it.
Did Launch ever contact you regarding this problem? Anyway, Nice Diag, Nice Repair! Please update when you find out anything from Launch. Its in Ontario California. I was there last month, had my Matco Maxme repaired there. They are on "The other side of the hill " from me. The MaxMe was still under warranty, nice people there.
I have seen something like this before. I have a clone Tech 2 and a 2005 Cadillac STS which is an early application of their CAN system. When I scan modules with the tool, it throws similar codes (U codes). At first I thought they car just had all these codes but then I realized it actually makes them when scanning the modules. I assume a real Tech 2 would not do that...
Go to updates on the scan tool, scroll down to GM, and pull down the drop down menu for version and roll back to the previous version and retest. I’ve never had that issue before. I did however have an issue with communication on Fords once so I rolled back a version and waited there until the next update was released and all was well
I've seen cheap scan tools cause a bus communication error on mid 2000's Toyota's. Including my own. I also saw one of those intelligent battery testers (the ones that test the CCA of the battery) cause a brake module communication fault on a 2002 Corolla too. The CAN signals are probably very sensitive to interference. Yet at least 3 of those vehicles were fine on my Autel scanner and with Toyota Techstream with the pirate cable.
yea your right Ivan no history list does kinda suck. maybe they'll fix that. Cheers. Great Job. Wow that really sucks, dongle interference, will have to watch for that, thank you.
Nice catch in what could've escalated quickly into a wild goose chase. BTW, Scotty mentioned how those USB charging devices plugged into car's power outlet can interfere and wreak all sorts of havoc. Pass it on. 😉
I think it's a glitch in GM ... 😂 I used to be a die-hard GM guy ... until I bought my '07 Silverado brand new. Now it's bordering on hate. They have fallen SO far. It's sad. That ABS sensor looked exactly like the one in my '93 Volvo 940 - only difference was, mine was 25 years old and STILL working perfectly ... of course until I removed it. It came out in 3 pieces from rust. I should've just left it there, but was doing hub bearings and backing plates (not included on these - just a tone ring on the bearing assy.). $125 for that sensor!! Gotta pay for quality these days I guess.
i had problem with ABS/stabilitrack, was never a sensor! they put too much dielectric grease... its was intermitent sometimes it was working prefect and other even without moving its was telling there is a problem. i remove the grease not everywhere but on the harness side on the flat i wipe it, plug the harness back on the ABS module, it has been 3years not came back a single time. i didnt have a scan tool to check that, wish i had just by curiosity. it was like the grease making contacts between pins, not direct contact but high resistance maybe even capacitance effect
Yesterday scanned a BMW 128i with Verus Pro. ABS wheel speed digital sensor. Fault code was wheel direction but when in drive scanner was kidded out every time with no communication message. Had to put the vehicle in neutral and let it roll for verification.
Best bonus footage ever! It's rare, but I've been lucky enough to see scantools cause network communication issues, especially now that I'm getting into ADAS. Just imagine having a vehicle-crippling issue with your scantool, and no recourse because you're contractually locked into that device. ;)
also, you may check to see if the "bluetooth dongle" has a high and low data rate setting, if yes try lower speed setting. ** through the scan tools settings that is...
I am not sure what is in the sensor but because the good one shows open and the bad one shows resistance it leads me to believe the bad one has a partial short possibly moisture leaked into the sensor.
I use one of those cheap import OBD2 bluetooth dongles with the Torque App. Every few days my speedometer will go crazy and only unplugging it and plugging it back works. If I had to guess this is some problem related to remember when they had those problems with those "Fake ELM 1.5 adapters". The clones weren't completely compatible or wrong version of the firmware. I don't know what one the launch uses but I'd guess something along those lines.
Do you know if the launch has the same issue with any other vehicles.....was really thinking about getting one but Idk now but then again I'm a Ford guy and not sure if the issue is a deal breaker or not just kinda in limbo for now on what to get at the end of the day..........any thoughts ??? Also I'm just a backyard mechanic who works on friends and family members vehicles but never know what I'll be working on next......
It is a Chinese market tool but It’s a great scan tool and I have had plenty of issues with US made scan tools as far as buggy updates and such. If you want the closest thing in a US version then that would be the x-431 pro s mini
That was very thorough. Test drives are as hazardous as a follow up call, both dangerous if you think thats it and its fixed :) Been there !! Design fault. Know where the term "bug" comes from ? Just after the war, a naval computer operator had problems doing a backup on a mainframe and found a moth had got stuck in the memory core store. Was removed, pinned into the shift log as "Fault found and debugged" or some such, hence "bug". You prolly knew that, just saying.
I have x431pro V. Chinese version. This thing has many issues. Many programs are missing, does not enter the system, does not execute tests. So, I'm not suprised that it interferes with com.
Launch X431 Diagun have its ability defects. As we said at the beginning, you will find its advantages and disadvantages when you have used it for a long time . Of course, it's also possible that GM have their issue. It's just speculation. Let say some useful thing. Steps to get tech support if you have a issue about Launch scan tool : 1. Click "feedback diagnosis" to Write feedback and upload diagnose file 2. Tell us the product ID once you submitted the feedback diagnosis. 3. We will let Launch check your feedback as soon so possible. Launch/Kingbolen FB support page@Kingbolen.fans
Ivan does the Diagun not work in Landscape mode? I've put the 'app' onto my old Galaxy S5 & it's almost exactly the same as using the Tablet & has the 'History' button along the top, goes something like America/Asia/China/History. I'll try & do a vid on it.
i replace those sensors all the time. but in addition to them being stuck in, due to the area i live in with forestry and oilfield and construction, the sensors are usually physically broken because they are in front of the axle, which then create a whole bunch of new problems. i have pulled my fair share of wheels and brakes off i order to get the broken pieces out or try to drive the sensor out.
Welcome to the world of integrated circuit acting as an variable resistor. The controller at the end of the wire is measuring the current against the resistor on the ground wire. If the sensor is "open" = only the IC inside the sensor running, you have low voltage. If the sensor turns on a transistor connected to an low resistor, you get higher current from the 12V to ground and the voltage before the terminating resistor at the end of controller rises as the current increases. All the time the IC at the sensor is running on the voltage difference between 12V and output a.k.a "ground". That is why the signal voltage difference is so low. This way you save ONE wire. When you save million wires $1 each, you just saved a million bucks.
Thank you! This was the most interesting bonus footage ever! It was very smart from you to suspect from the scanner connection affecting the communication between modules, I have no idea how you figure that out! Cheers!
The bonus footage was nuts lol glad you figured it out or it could have gotten very frustrating and expensive 🙈 Never mind the speed sensor, all that rust after 20k I think I'd be crying!! Good job Ivan!
Ivan sir. This is by far one of your best one out there. It was funny because every new turn that came up I was talking to the screen, do this or do that and you did. I must be getting use to you. What I mean to say is, you really follow through here and your thought process was right on the money, especially with the problem with the Scanner itself. Very well done and very well execution of completion. Each step was perfection. Not many people out there can think on their feet. I hope you follow up with Launch and GM and this also proves why more than one scanner is needed to diagnose cars.
I wonder, you have an autel scanner, does it have a BT connection as in the 906bt model. If so, does that react with this vehicle in the same way.
Really Ivan, thanks for sharing this one.
Thanks for the kind words Robert!
I have that same creeper... my refrigerator came in it.
Nice work on quickly isolating/correlating the light with the scanner dongle!
Impressed that you pinpointed the diag tool as the problem so quickly. It would be easy to chase down into a rabbit hole especially after the original complaint involved some of the same illuminated warnings.
Thanks Ivan, for another great video!
absolutely priceless..... the craziest thing i have ever seen.... thanks Dr Ivan
That sensor was massive!! Very interesting with the scanner and the truck. Ill keep a look out on my diagun 4 to see if I experience similar problems
Thanks for sharing Ivan....wish you build and own a bigger garage at your home, with full of tools.
Your patience is admirable and your troubleshooting skills are excellent. You also speak the truth: crappy quality abounds, but the paint job is real nice. :-)
Oh man that was insane. Would have took me a bit longer to figure out it was the scan tool causing the issue and would have thrown me through a loop. Good catch that was insane.
Hope all is well over on the other side of the mountain!
Wow! I've worked on aircraft where the test equipment introduces faults. You stayed vigilant and kept those electrons in line. :-) Or was that "hole flow?" I loved this, Ivan. Thanks.
Ivan, I noticed the same glitch with the Launch within the GM program. I'm using the same scanner on a 2016 Chevy Express. Besides the buss communication issues, I also had issues with the Special Functions (steering angle reset and brake position calibration) on the same vehicle. Steering angle reset would complete successfully but wouldn't actually do anything. However the Brake position calibration seems to be corrupt as it fails due to a AC pressure too high fault. For what its worth, I contacted Launch within the scanner, sent them the vehicle report and described these issues. Hopefully the next GM update will have this addressed...
"Holy Crap!" And the long face! Priceless! Thanks Ivan.
Thank you for all the good videos.
Great job Ivan, thx for sharing.
Brings back memories. The camshaft sensor in the front engine cover of the 5.3 is the same way. It swells over the years and is impossible to get out.
An unusual scanner issue happened on a Mazda 6 with my OTC Encore. Can drive you nuts! Thanks Ivan!
Thank you Ivan. Good job. I appreciate your videos. Have a blessed and safe week.
Your right
We're ready to ROCK & ROLL. NICE JOB MOTOYAM 👍👍
Launch BT dongle might add a just bit more capacitance / inductance to the HS com line and thus the fault. The actual fault might be the GMC / GM designers. There should be more tolerance for signal distortions.
Not sure what it means, but I like what this guy is saying :)
Hi
A clear & concise explanation.
Bravo!!
Kind regards.
wow good call on that trouble.but i know you would do it right call.good job ivan.but strick 2 for that launch
The bonus footage was longer than the regular footage, I'm confused.
LOL
I`ve had same issue on a Alfa Romeo with cheap BT ELM dongle. When plugged cluster goes berserk, when unplugged everything is ok
Ivan its good you had the foresight to unplug the scanner...could have thrown you. I have no doubt that the sensor was faulty....Fred in Uk
I had the same thing happen with the traction control on a 2004 Hyundai Santa Fe AWD when the Verus was hooked up to the DLC connector and looking at live data while driving. Note: I have the Snap-On Verus Edge with Bluetooth dongle. Don’t remember this problem with my old Modis w/o Bluetooth.
Great video and good common sense or great guess on your part.
Great videos .... what is the large screen scanner you are using ?
Wow! That's freaky! Really thought you had a 2nd issue there! Glad you figured it out. .. so darn logical Ivan! Could've been pulling your hair out on that one! Lol
Yeah that was bizarre lol...can't trust anything these days!
if the dongle/tester has no cable or a short cable, try adding an OBDII extension cable with a big choke on each end. That gets the silly dongle spewing wifi/bluetooth RF and RFI away from the connector, it could be noise entering other bus lines causing modules using them to go stupid or even the can bus itself.
corded tools, same can happen and leaky ignition systems can really whack things out, don't ask how I know :))
I have an idea why this communication problem occured: The Traction control has the highest priority on the CAN-Bus because it's security relevant. If your scanner talks too fast to the system, some data frames on the CAN-Communication getting lost, because the bus is physically too slow and overloaded with your fast scan-tool. then you'll get these problems. -->use a slow talking scanner on these vehicles :) Recently i had the same on a Volkswagen: The reason was im my case the ECM. The ECM tryed to trigger the check-engine-light on the dash. In the same time, the communication on the CAN-Bus was a very short period of time interrupted because the ECM's was trying to set the CEL --> i've got a ABS/ESP warning on the dash and no check engine light :). The reason was a faulty coolant temperature sensor at the ECM. Haha! BR from Switzerland, Matthias
Great bonus footage. I had the same problem with an OTC Genisys that would disable ABS/Traction control while testing and trip codes on some GM vans, and trucks, 04-14. Quite annoying. I stopped using it in 15 after their update still didn't fix it. Let us know if Diagun gets back to you on this.
When testing electronic components passively with a multimeter, it is usually more relevant and consistent to do a diode measurement. Even across different brands of multimeters, the results will not vary very much in contrast with resistance measurements, which highly depends on the brand, type and settings of multimeter. Positive terminal to ground and negative terminal to signal usually gives the most relevant results.
Great diagnostic on the wheel speed sensor and exceptional find on the Launch. Who knew?
Very interesting. Was it the connection between the launch or the Bluetooth from it.....but very cool head to figure it out...
Ivan, that was interesting to find the scanner was the problem by the way i was almost going to order one but now i am not sure thanks for the video/info. cheeeeers
i rember something on old snapon scanner said do not drive.similar thing?? not in road test mode?
I remember when I first got my MVP Scanner I plugged it into a Mitsubishi Outlander to do a key & the dash lit up like an Xmas Tree! Long story short, it failed to program in a new key so I had to Clone one & the car wouldn't even start. I thought I'd bricked the Immobiliser & my heart was in my Mouth. Used the Autel(back when it used to actually work) cleared the codes & all was good(PHEW!)
I get the same kind of bug thing with my Vauxhall Astra H, I have the same Launch model as yours and when I have it plugged in I get an imobiliser module error fault code, I find I have to clear the fault codes, turn the car off and remove the launch dongle before turning the car back on.
darn...no part 3
I have a old innova code reader i use when i go on test drives and for checking monitors and on the chevy cruze it causes the stabilitrack light to come on as soon as its plugged in. if you unplug it and turn the key off and back on the light is off. never stores any codes when checking with another scan tool.
Good job
Hey Ivan I had this same issue! I had a BlueDriver in my 2014 Ram and it kept throwing tranny codes and pcm codes. Couldn't figure it out for the life of me until one day I removed it and used my Autel. Never had an issue since. I have since resorted to using wired OBD plugs only and avoid bluetooth.
That happens on GM with my Autel and my Snap-on not on them all just a few. It had my scratch my head and then I realized it was just the scanner causing the issue. I unplugged the dongles and did a key cycle and Stabilitrak light back to normal. Now I just ignore the Stabilitrak light if it comes on and wasn't there before. Was too busy to investigate anymore, just know it happens. It's done it a few times on my wife's 2014 Traverse also. I was screaming at you it's the scan tool disconnect it but eventually you figures it out as I knew you would 😎
Wow good to know! So who should improve their stuff...the scanner manufacturers or GM?
@@PineHollowAutoDiagnostics There is a TSB UI Bulletin #108D Upfitter Bulletin Aftermarket ALDC or DLC Interrface Devices Causing Multiple Issues and Stabilitrak messages and codes is one of them.
On my 2002 Grand Cherokee, I had my Actron scanner plugged in and looking at some PIDs. Drove it to Walmart like that, and as soon as I shut it off (with the scanner still plugged in and reading), the body control module went completely sideways. No locks, couldn't put up my windows, cluster and information center were stuck on. I can't remember if some lighting functions were acting weird, as well. It wasn't until I pulled the fuse or a relay for the BCM and plugged it back in that stuff went back to normal.
Ivan, try using the Diagun without the bluetooth connector. Use the wired connector they supply.
Interesting idea...
Hi Ivan: Just viewing one of your old videos. Had nearly the same thing happen with my 2012 Gmc Sierra 1500.
When i plug my Thinkscan Plus S4 scanner for my Evap Code p0442, Traction control, stabilitrack codes light the cluster. When you disconnect and restart it goes way. Weird!
Wow, that was weird but thankfully your logical mind followed some good clues. Boy, the importance of a test drive was well displayed here.
I've had this issue on Autel's connected to an 06 impala, but it was only one specific 06 impala. It would cause the lights on the dash to freak out, but unplugged was no problems. Tested on another 06 impala with same engine, and no issue. Very odd
I think the launch isn't allowing the bus signals to return between the modules. It's taking in more then it gives back. A glitch on the launch scanner nonetheless. Overall great vid learned ways to check a bad sensor. Having a known good always helps seeing the trouble you had removing the old sensor. Swapping sensors maybe a bad idea while diagnosing. Till the next notification! Thanks PHAD!
My thought exactly, looks like Launch is speaking/communicating out of turn on the network or maybe is not passing through data packets that are not destined for it.
Can you recommend someone near Hampton Va., to diagnose brake and abs codes on a 2006 chevy 2500hd.
Did Launch ever contact you regarding this problem? Anyway, Nice Diag, Nice Repair! Please update when you find out anything from Launch. Its in Ontario California. I was there last month, had my Matco Maxme repaired there. They are on "The other side of the hill " from me. The MaxMe was still under warranty, nice people there.
The diagun is a Chinese tool that isn't supported by launch tech usa.
Snap on versus wouldn’t do the glitch 😂 my my launch torque does have vehicle history option but I always forget to use it lol.
I have seen something like this before. I have a clone Tech 2 and a 2005 Cadillac STS which is an early application of their CAN system. When I scan modules with the tool, it throws similar codes (U codes). At first I thought they car just had all these codes but then I realized it actually makes them when scanning the modules. I assume a real Tech 2 would not do that...
My bluetooth ELM27 that I use with torque will cause the keyless entry to not respond on many GM's if it's plugged in, but the ignition is off.
Crazy! Fordtechmakuloco has a video on phone chargers interfering with the tpms (witnessed it myself once). I wonder if this is something similar.
Really? I missed that one. Got me intrigued. .. thanks for mentioning 😊👍
ruclips.net/video/YMevsqjSEIQ/видео.html
Also had another issue where I had HP Tuners VCM scanner scanning on a corvette and would cause random invalid torque error codes only during WOT :\
Awesome....
Go to updates on the scan tool, scroll down to GM, and pull down the drop down menu for version and roll back to the previous version and retest. I’ve never had that issue before. I did however have an issue with communication on Fords once so I rolled back a version and waited there until the next update was released and all was well
I did. Same glitch happened.
I've seen cheap scan tools cause a bus communication error on mid 2000's Toyota's. Including my own. I also saw one of those intelligent battery testers (the ones that test the CCA of the battery) cause a brake module communication fault on a 2002 Corolla too. The CAN signals are probably very sensitive to interference. Yet at least 3 of those vehicles were fine on my Autel scanner and with Toyota Techstream with the pirate cable.
Your lucky that truck only had twenty some thousand miles on it. I’ve seen some wheel sensors welded in by rust. Nice job Ivan.
yea your right Ivan no history list does kinda suck. maybe they'll fix that. Cheers. Great Job. Wow that really sucks, dongle interference, will have to watch for that, thank you.
I have a 08 Pontiac G6 that if I leave my blue tooth dongle on it'll see error warnings on the dash and BCM codes. Sends it into a frenzy.
You wonder where those engineers that made Cs in College went to after school, GM / Ford / Chrysler
sadly, they're probably the highest GPA ones ;)
Not with the grade inflation in US higher education!
You forgot nissan. Oh wait those guys never graduated.
Nice catch in what could've escalated quickly into a wild goose chase.
BTW, Scotty mentioned how those USB charging devices plugged into car's power outlet can interfere and wreak all sorts of havoc. Pass it on. 😉
Wonder if the bluetooth dongle is loading the network. All CAN bus modules should be high impedance between the can lines and ground.
I think it's a glitch in GM ... 😂
I used to be a die-hard GM guy ... until I bought my '07 Silverado brand new. Now it's bordering on hate. They have fallen SO far. It's sad.
That ABS sensor looked exactly like the one in my '93 Volvo 940 - only difference was, mine was 25 years old and STILL working perfectly ... of course until I removed it. It came out in 3 pieces from rust. I should've just left it there, but was doing hub bearings and backing plates (not included on these - just a tone ring on the bearing assy.). $125 for that sensor!! Gotta pay for quality these days I guess.
i had problem with ABS/stabilitrack, was never a sensor! they put too much dielectric grease... its was intermitent sometimes it was working prefect and other even without moving its was telling there is a problem. i remove the grease not everywhere but on the harness side on the flat i wipe it, plug the harness back on the ABS module, it has been 3years not came back a single time. i didnt have a scan tool to check that, wish i had just by curiosity. it was like the grease making contacts between pins, not direct contact but high resistance maybe even capacitance effect
Will an elm 327&Torque with USB outlet cable&laptop avoid this problem. Or is it more than Bluetooth interference???
Yesterday scanned a BMW 128i with Verus Pro. ABS wheel speed digital sensor. Fault code was wheel direction but when in drive scanner was kidded out every time with no communication message. Had to put the vehicle in neutral and let it roll for verification.
My maxisys elite triggers the abs & battery light when doing live data graphing on Nissan Altima wheel speed sensors but no codes.
That's weird.
That was bloody weird!!!!! Thanks for this vid.
Same prob has happened with earlier scanners. Brakes require intensive comms.
I wonder if they could put a cover over it to stop or slow down the rust
no panic ,logical deduction.Nice
Best bonus footage ever! It's rare, but I've been lucky enough to see scantools cause network communication issues, especially now that I'm getting into ADAS.
Just imagine having a vehicle-crippling issue with your scantool, and no recourse because you're contractually locked into that device. ;)
Lots of RF going on in modern cars- seen scanners interfere with ECM via bluetooth
also, you may check to see if the "bluetooth dongle" has a high and low data rate setting, if yes try lower speed setting.
** through the scan tools settings that is...
Man I didn't see that one coming! 🤤👍
build 1000 fast or 100 right what do u think gm will do
Nice catch, that could have thrown you for a loop !
I am not sure what is in the sensor but because the good one shows open and the bad one shows resistance it leads me to believe the bad one has a partial short possibly moisture leaked into the sensor.
I use one of those cheap import OBD2 bluetooth dongles with the Torque App. Every few days my speedometer will go crazy and only unplugging it and plugging it back works. If I had to guess this is some problem related to remember when they had those problems with those "Fake ELM 1.5 adapters". The clones weren't completely compatible or wrong version of the firmware. I don't know what one the launch uses but I'd guess something along those lines.
Do you know if the launch has the same issue with any other vehicles.....was really thinking about getting one but Idk now but then again I'm a Ford guy and not sure if the issue is a deal breaker or not just kinda in limbo for now on what to get at the end of the day..........any thoughts ???
Also I'm just a backyard mechanic who works on friends and family members vehicles but never know what I'll be working on next......
No issues that I've come across on Fords yet. First real glitch that I have come across, and I've used it on dozens of cars already :)
Wiggle from the torque. My guess is that there's a spotty ground somewhere and the OBD2 dongle is pushing it over the edge.
I was told that Launch USA doesn't support the Diagun 4 .... could be part of the problem if it's not made to USA spec
It is a Chinese market tool but It’s a great scan tool and I have had plenty of issues with US made scan tools as far as buggy updates and such. If you want the closest thing in a US version then that would be the x-431 pro s mini
Launch is extremely buggy like that in GM. See it all the time with mine.
Likewise, if I try to watch live data with the Launch in my Chevy I get loss of comm with the power steering
That was very thorough. Test drives are as hazardous as a follow up call, both dangerous if you think thats it and its fixed :) Been there !! Design fault. Know where the term "bug" comes from ? Just after the war, a naval computer operator had problems doing a backup on a mainframe and found a moth had got stuck in the memory core store. Was removed, pinned into the shift log as "Fault found and debugged" or some such, hence "bug". You prolly knew that, just saying.
I have x431pro V. Chinese version. This thing has many issues. Many programs are missing, does not enter the system, does not execute tests. So, I'm not suprised that it interferes with com.
Ivan,
Great video and fix - thank you! Interesting issue concerning the diagun scanner connection.
God bless
Paul
GM also had an issue with poor connections of the battery cables causing stabilatrac problems.
Launch X431 Diagun have its ability defects. As we said at the beginning, you will find its advantages and disadvantages when you have used it for a long time .
Of course, it's also possible that GM have their issue. It's just speculation.
Let say some useful thing.
Steps to get tech support if you have a issue about Launch scan tool :
1. Click "feedback diagnosis" to Write feedback and upload diagnose file
2. Tell us the product ID once you submitted the feedback diagnosis.
3. We will let Launch check your feedback as soon so possible.
Launch/Kingbolen FB support page@Kingbolen.fans
Ivan does the Diagun not work in Landscape mode? I've put the 'app' onto my old Galaxy S5 & it's almost exactly the same as using the Tablet & has the 'History' button along the top, goes something like America/Asia/China/History. I'll try & do a vid on it.
Cool! That would be neat to see. I have an old S4 laying around collecting dust...
I found any ABS sensor measuring mega ohms auto or HD
i replace those sensors all the time. but in addition to them being stuck in, due to the area i live in with forestry and oilfield and construction, the sensors are usually physically broken because they are in front of the axle, which then create a whole bunch of new problems. i have pulled my fair share of wheels and brakes off i order to get the broken pieces out or try to drive the sensor out.
Yeah not the best location for a HD application
Welcome to the world of integrated circuit acting as an variable resistor. The controller at the end of the wire is measuring the current against the resistor on the ground wire. If the sensor is "open" = only the IC inside the sensor running, you have low voltage.
If the sensor turns on a transistor connected to an low resistor, you get higher current from the 12V to ground and the voltage before the terminating resistor at the end of controller rises as the current increases. All the time the IC at the sensor is running on the voltage difference between 12V and output a.k.a "ground".
That is why the signal voltage difference is so low. This way you save ONE wire. When you save million wires $1 each, you just saved a million bucks.
Bluetooth frequency issue between the truck and the scan tool?
That’s what he said
that erratic bus lol, I'd be torn between the test equipment's RFI noise or poor grounding at engine loose battery terminals!
U da Man!