CAN this Crashed Caddy Communicate? (ABS-Steering-Airbag...2014 CTS)

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This 2014 Cadillac CTS AWD was towed in from a fellow RU-vidr's body shop to diagnose a CAN Communication fault.
The ABS, Power Steering, Steering Angle Sensor and Airbags cannot talk to each other!
Let's take a logical approach and pinpoint this CAN fault efficiently.
All we will need for this diagnosis is a scanner, OEM wiring diagrams, a good ohm meter, and your BRAIN :)
Check out Todd at UNWRECKED:
/ @unwrecked
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Enjoy!
Ivan

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4 авг 2023

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Комментарии : 204

@UnWrecked 11 месяцев назад

Thanks again for diagnosing this for me!! Currently pulling the head off the engine as i type 😒😒

@PineHollowAutoDiagnostics 11 месяцев назад

Good luck with that, Todd! 🤞😎

@UnWrecked 11 месяцев назад

@@PineHollowAutoDiagnostics also a correction here. I hate doing bodywork but I'm good at it 😂

@wallebo 11 месяцев назад

You made a good choice in diagnostician my friend. Good luck with the car.

@abdul-kabiralegbe5660 11 месяцев назад

@@UnWrecked Being good at what you dislike is the perfect irony.😂😂

@charris1111 11 месяцев назад

Thanks for helping Todd!!

@willypalooza6519 11 месяцев назад

Ivan i cant thank you enough for your vids man. I took the jump to be a diag tech and watching how you systematically split the systems has made me 300% faster. I used to be nervous/ avoid networking issues a but after your videos and training myself its made a world of difference.

@PineHollowAutoDiagnostics 11 месяцев назад

That's awesome to hear! Network issues are actually really fun to diagnose... Well except for the intermittent ones 😜

@jmaxim80 11 месяцев назад

Good for you, brother. I hope you have a prosperous career. If you master your craft, you'll have no problem being a millionaire by the time you retire.

@rhkips 11 месяцев назад

Beautiful! Making me feel like I'm working on a Saturday... LOL Splitting CAN networks is so crucial to finding faults like this, and it's even better when you have 2-3 body techs and a shop owner looking over your shoulder telling you you're crazy, the damage couldn't possibly be THERE, and then...Doink! There it is! Shop spent a week on it, you fixed it in 20 minutes. Love it!

@jmaxim80 11 месяцев назад

That's got to be one hell of a good feeling, my friend. Working around other top mechanics, and you come in and shine like a star and tell them there's your problem, ladies. 😂

@dharley189 11 месяцев назад

Very well thought out diagnostic procedures. All the steps from RPO and OE diagram use saved hours in my estimation. Double checking the pin out when it didn’t jive with what you expected was being very thorough. These steps don’t come natural to the average nut and bolt technician. I’m 7 yrs retired from this. Saw some of it before 2016 but not to the extent now. This half blind broken down 69 yr old car tech sure loves living out his love of fixing electrical problems thru you now. Thanks a bunch. Del

@vg3430 11 месяцев назад

Reminds me of my days in the USAF as an aircraft mechanic. Except there, our wiring diagrams were HUNDREDS of pages. Same troubleshooting process: split the system and test, split and test, etc. continuing to narrow it down until you find the problem. Not a hard process, just time consuming. Add in a malfunction that only occurs when aircraft (fighter) is in a high G maneuver…that my friend will cause many sleepless nights! Thanks Ivan…enjoy watching you work…because I don’t have to. 😂

@JoseSilveira-newhandleforYT 11 месяцев назад

Yes it CAN! Sorry, I had to say that 🙂 Great diagnostic and repair, Ivan! Being a crashed vehicle, I was expecting more wires damaged, but apparently only that one was roughed. Impossible job without the network diagrams and the right mind to use them.

@zx8401ztv 11 месяцев назад

LOL CAN Jokes :-D

@JoseSilveira-newhandleforYT 11 месяцев назад

@@zx8401ztv 👍

@jeremyah78 11 месяцев назад

So many skill sets applied here!! Great tutorial on chasing down an open in a CAN network, Ivan!

@tcifusion4497 11 месяцев назад

HE WENT FROM NO EXPERIENCE TO BODY PANEL SWAPING...HE IS SMART...SMART ENOUGH TO GRT IT TO U.....LOVE U BOTH....

@UnWrecked 11 месяцев назад

😁

@tcifusion4497 11 месяцев назад

@@UnWrecked MADE THE RIGHT CHOISE....LOVE U AND THE FAMILY.......KEEP IT UP..

@noelcastle3986 11 месяцев назад

Great vid quick effective diag terminating resistors come in handy for fault location checks. Diagnose Dan did a great vid explaining terminating resistors and CAN networks after watching that can follow your can fault finding stratagies and understand whats goung on. Thanks again Ivan your vids make my day.

@WECB640 11 месяцев назад

Hams and RF engineers immediately recognize the balanced transmission parallel feed line of the CAN. The terminating resistors at each end keep the reflections (SWR) down to a minimum and are critical to the proper operation of the transmission line.

@dongningprc 11 месяцев назад

Amazing job! And of course, nice tools! Scanning tool, multimeter... Yet the most important is a cool and smart brain, which is by far the most important! Without the correct logic, nowhere to go, that is the same in every single diagnostic job. Be it electronics, be it programming, be it being a doctor treating patients, you name it! Again, thanks for sharing, Ivan! Now every time I open up the RU-vid main page, the very first thing I am more than eager to see is your update.

@adotintheshark4848 11 месяцев назад

Congrats to Todd for enjoying doing body work, people who do are few and far between. As for this car, with all the electrics and repairs needed and already done, I'd steer far away from buying this one.

@russellhltn1396 11 месяцев назад

I wonder if anyone will add this to VINWiki. I think the VIN was shown on the RPO tag.

@crisprtalk6963 11 месяцев назад

Not many people do like electrical or are very good at it, which is what makes you and Eric O very special.

@titaniumman_22 11 месяцев назад

Nothing better than watching a Pine Hollow video before I go out to work on the ol’ Cherokee in the garage!

@scottjanoso4475 11 месяцев назад

Every time I watch I learn. Your troubleshooting seems slow at the beginning but methodically and purposefully you get right to the problem. Others just start swapping parts. I am amazed. Great video!

@PineHollowAutoDiagnostics 11 месяцев назад

Well over half of the time in a diagnosis is spent doing research and coming up with a solid game plan 😉

@firstlast--- 10 месяцев назад

As someone currently training to be a driveability tech this process is exactly how general motors teaches its technicians down to the T. The process is identical. Great video

@jimbriggs70 11 месяцев назад

You are an educator beyond compare. After watching all your videos I have become 10K times better at understanding the scan tool and it's functions. Unfortunately I grade myself at about 8 to 10% of what would be considered adequate. Well time is on my side. With your videos and time I will become a master. BUT at almost 77 years old, don't bet on me. Unfortunately I am at the point that I know enough to make people like you earn a lot of money fixing my OOPS.

@PhillyRoadtech 10 месяцев назад

Amazing diagnostics. Being able to read and follow a schematic is half the battle

@GeminiSeven43 11 месяцев назад

Another save by the Jedi Master and Thanks so much for bringing us along. You knowledge and patience is amazing Ivan and you have such a great attitude in your work and it is inspiring to watch. Thanks so much also for introducing me to the awesome soldering iron as I bought one a while back after seeing you work with this one and it ROCKS!!!!!!!! Take care Ivan and have a great weekend!!!

@PineHollowAutoDiagnostics 11 месяцев назад

Yeah the TS100 soldering iron is the bomb ;)

@CXensation 11 месяцев назад

As a retired electronics engineer I urge you to learn how to use the audible connection checker on your meter. Or get a meter with this facility. This works with setting an ohms limit where the audible alarm sets in. In this example of your fault tracing, setting the meter to a 200 ohm limit, you would get an alam once the wiggle causes a temporary connection. Frees up your eyes and hands for the physical testing ...

@PineHollowAutoDiagnostics 11 месяцев назад

I HATE beeping things 🤣

@thk7513 11 месяцев назад

Outstanding, excellent deduction and eventual conclusion. I know I burn you for some of your repairs, but this was excellent. Good job!

@kirkbanton9181 11 месяцев назад

Great to see that Todd reached out to the Guru.

@UnWrecked 11 месяцев назад

I knew exactly who I needed to take this too after I struggled for weeks!

@brianw8963 11 месяцев назад

You know a Guy is on His game when He makes this stuff look like child’s play. Great work Ivan and thanks for sharing. 👍👍🇺🇸

@PineHollowAutoDiagnostics 11 месяцев назад

😁👍

@autotek7930 11 месяцев назад

Crashed and disassembled cars is all i work on so I'm very interested in this episode

@petar443 11 месяцев назад

The real proof that resistance/ohms/continuity test with the Dvom can save the day. Ohm check for the win!😊

@rickcoleman8903 11 месяцев назад

Much appreciated you sharing your adventures with the community.

@inothome 11 месяцев назад

Nice they kept it in pieces for you, made it easy to get to that one connector. Plus gave a little insight to where the damage probably is ... and was.

@harrylister804 10 месяцев назад

That's probably the only advantage to collision work, except when they hurry to put it all together without diagnosing. I saw that happen once and never saw anyone look at a wiring diagram. A tech started checking fuses and mumbling about relays hoping for a miracle that never came.

@karlvondrak6080 11 месяцев назад

Great video as usual, really enjoy the wire chasing videos!

@tacocin 11 месяцев назад

Todd & Ivan ... The Dynamic Duo!

@stanleysemchenko4079 11 месяцев назад

Zz- sea

@chrisosiecki8050 11 месяцев назад

Great diag and triage. You explain it well.

@dendkmac 11 месяцев назад

Simply awesome diagnostics Ivan. once more you show your skills PHAD Rocks!

@spirokattan3655 11 месяцев назад

Thanks for explaining things as you go along Ivan. A great lesson in every diag from Pine Hollow!

@Harry_the_handyman 11 месяцев назад

Nice trick for that holding the wires together

@brianstier146 10 месяцев назад

Thank you for sharing your insights and information.

@londen3547 11 месяцев назад

Outstanding diagnostic ability on display here.

@fredautos 10 месяцев назад

I must say Thank you! Every vid of u, is always impacting a lot on me! Kudos Ivan😊

@GarnConstructionInc 11 месяцев назад

Nice work Ivan! Network diagnostic/repair with no scope & no parts required, brilliant!

@paultaylor9939 11 месяцев назад

Great breakdown on this one Ivan many thanks for sharing keep up the good work cheers 🇬🇧

@slimshady23brar 11 месяцев назад

Amazing diagnostics. Very knowledgeable and informative video for techs.

@alrifainidal 11 месяцев назад

Thank you for sharing your expertise

@baxrok2. 11 месяцев назад

Incredible. Thanks Ivan!

@GreyRockOne 11 месяцев назад

Nice work as usual Ivan!

@eddiereichel9354 11 месяцев назад

26:04 I yell at the auto off too but honestly its the only reason my meter works because I leave the battery on all the time. My low amp clamp gets a fresh battery every time I use it.

@PineHollowAutoDiagnostics 11 месяцев назад

haha "auto-off" is a blessing and a curse xD

@scotty281976 11 месяцев назад

It's even worse when your multimeter blanks off the ports and opens one's to insert the leads to what setting you are on. My multimeter got dismantled and modified

@deweydodo6691 11 месяцев назад

Front clip off certainly helps.

@mennoboon8037 10 месяцев назад

Nice problem found and solved👍

@biglevstergarage 11 месяцев назад

Good methods and find Ivan. 👍💪💯

@stevegerhart929 11 месяцев назад

Ivan . Your talent is such a pleasure to watch.

@adrianrolston-earl9029 11 месяцев назад

Awesome work

@JOHNSUE28 11 месяцев назад

Ivan. I have learned more by watching and putting into practice, your common sense diagnostic approach. Thanks twenty times!

@robertmobileman8304 11 месяцев назад

great video , good job Ivan

@mikaeljonsson4686 11 месяцев назад

Nice and methodical video as always! 😊👌

@billziegmond4943 11 месяцев назад

As in our emails about my case study RPO codes needed for a good diagnostic, Nice work as usual my friend.

@johndesaavedra1040 11 месяцев назад

I understand doing things you hate because you're good at it. I once made a living doing drywall finishing because I was very good at it. I was a good car painter too. I only do those things when I have to. As an adjuster I totaled a car because the shop was unable to diagnose a wiring harness break on a minor damage GM subcompact. It had an interlock that required the car go back and forth the interlock shop each time it was opened up..

@lowbagg 11 месяцев назад

Thanks Ivan...

@TheOriginalDaveJ 11 месяцев назад

It's always a good day when Ivan's in my living room 😊

@greyguy9767 11 месяцев назад

Fantastic job You are a master mechanic.

@advancedleveldiagnostics 11 месяцев назад

Great find, Keith's tug test for the win again! Another great resource on GM is the Data Link References chart, it breaks down every module and tells you what Bus it communicates on and how many different Busses.

@dustcommander100 11 месяцев назад

Great job finding that break so deeply buried in that Cadillac carcass!

@chrislambert2889 10 месяцев назад

Wow amazing job there 👍💯 I learned a lot there . Airborne

@chrisquinlan3012 11 месяцев назад

The old skool "wiggle"test comes through again .Great detective work finding where to wiggle by Ivan

@PineHollowAutoDiagnostics 11 месяцев назад

It's crazy that the wire was 99.9% broken but still showed 6kOhm of resistance haha

@isalmankhan1 11 месяцев назад

Great work as usual👍🏻 This is a very complex system that you fixed in 20 min's, I'm sure for a lot of Tech's this job will take day's to narrow it down😇 Thanks for sharing BRO, Stay Safe😍

@Ken_in_Wisconsin 11 месяцев назад

Good stuff Ivan.

@jeffryblackmon4846 11 месяцев назад

Good work, Ivan. I hope I never have to do that sort of repair. I enjoyed your video.

@ohfugit 11 месяцев назад

Great Video! Thank you. The terminating resistors remind me of the old scsi bus

@tracydiller9378 11 месяцев назад

Great video and fix as always Ivan. That soldering iron looks sweet, going to order one.

@RJon2006 11 месяцев назад

Such great videos. Keep it up! 🇺🇸🇺🇸🇺🇸

@dmitriysukhodolov5078 11 месяцев назад

Diagnosis from God. Great work there Ivan!

@ThisIS_Insane 11 месяцев назад

Oh, Ivan-Wan Kenobi, You're our only hope! 🤯👍👏👏👏💯

@francoispapadakis76 11 месяцев назад

Hi Ivan, very detailed step-by-step diagnose which also shows the importance of having a diagram. I guess your resistance reading of around 6 kOhm was due to humidity-caused corrosion of the wire. The wire insulation was probably damaged by the crash. Good job!

@teekay_1 11 месяцев назад

It was pretty clever of GM to have redundant channels on the network for precisely this reason.

@EATSLEEPFARM 11 месяцев назад

Nice work brother 😎 on to the next one!!

@ferrumignis 11 месяцев назад

That was a really nice diagnostic 👍

@PineHollowAutoDiagnostics 11 месяцев назад

The only car that went "smoothly" that week 😂

@albutterfield5965 11 месяцев назад

Another stellar job

@THEDRAGONBOOSTER8 11 месяцев назад

Well done..

@roxanneabbott8424 11 месяцев назад

Thumbs up Ivan, you did it again!!

@PineHollowAutoDiagnostics 11 месяцев назад

This diag went surprisingly smoothly haha

@udrtydog1 11 месяцев назад

Amazing diag! You are no doubt a Master Tech. I have learned much from you Ivan San. I have learned I can't do half the things that you do! Lmao. 🇺🇲

@PineHollowAutoDiagnostics 11 месяцев назад

Ivan San...is that Japanese? :D

@udrtydog1 11 месяцев назад

@@PineHollowAutoDiagnostics lol, yes.. Although I am not Japanese. Consider that a "term of endearment." A sign of respect, if you will..

@dans_Learning_Curve 11 месяцев назад

I definitely think you should replace the Power steering module just to be sure it's fixed! . . . . 😂😅😂🎉😅 Nice job!!

@Clausifix 11 месяцев назад

Brilliant diag as always 👍🏻! ..but no jack stands😮 21:48 ..

@wwdiesel 11 месяцев назад

Great video and diagnosis as usual! Love your analytical approach to narrowing down the location of the problem. Very surprising that the outside of the harness did not show any physical damage. Wonder how just that one wire got broken and all the others looked OK?

@londen3547 11 месяцев назад

Probably defective from the factory. A broken wire inside the insulating sheath can function as long as the fractured ends are making contact and the conductor is not required to carry a lot of current. Given enough movement, in this case an accident and contact was broken.

@PineHollowAutoDiagnostics 11 месяцев назад

It was just a slight pinch of the harness by the radiator during the collision, and the thin CAN wire got slightly compromised is my guess.

@BenzJaguar 11 месяцев назад

Freaking Amazing Diagnostic 👍

@a_w_bukhari7579 11 месяцев назад

That’s a FAD

@mikechiodetti4482 11 месяцев назад

Thanks to Todd for all his work and info for Ivan. Thanks to Ivan for showing us where the wire was broken. Previously when I worked in the DWP City Fleet, the Body shop there would leave the fenders off if wiring harnesses got damaged, or they would remove them if I asked them to, which was great. Some older Navistar/Internationals with the one color (all black) wiring harnesses that had numbers on the wiring made it interesting to work on. Really interesting if we didn't have the wiring diagrams. Good Times! Thank you Ivan for this video!

@bullbutter9699 11 месяцев назад

Todds Cool

@AP9311 11 месяцев назад

Is nice to have bodywork off so you can trace the pesky missing wire lol. Nice to have the OE diagram! Great job Ivan!! Lol.

@ferdiecassel3697 11 месяцев назад

Way to go Ivan. You hung in there and found the problem.

@PineHollowAutoDiagnostics 11 месяцев назад

Well yeah can't just give up half way through the diagnosis 😅

@ferdiecassel3697 11 месяцев назад

@@PineHollowAutoDiagnostics many do. That's why they come to you.

@larrynelson6656 11 месяцев назад

Bring back the days of a ground wire and a power wire and no bus network

@anthonysiner372 3 месяца назад

The soldering iron you have IVAN is a TS101 from Amazon

@angelr8892 11 месяцев назад

I put a temporary kink in wire to hold shrink in position, keeps the digits away from heat. If it's a horizontal wire, kinks at both ends of the shrink. These vids are a nice fix for this retired tech. 👍

@PineHollowAutoDiagnostics 11 месяцев назад

What if wire isn't long enough to kink? :)

@angelr8892 11 месяцев назад

@@PineHollowAutoDiagnostics I've never run across that situation. Which makes sense as you have to have enough free length on the wire to slide the shrink away from the soldering heat so it doesn't accidentally shrink the tip of it. All it takes is a tiny bend of the wire @ end of shrink to hold it in place. Also, in situations where the shrink wants to wander back near the solder point, I'll kink the wire to hold it away from the soldering heat.

@PineHollowAutoDiagnostics 11 месяцев назад

@@angelr8892 I just start shrinking the tube at the opposite side of my finger so it doesn't slide out of position 🙂

@angelr8892 11 месяцев назад

@@PineHollowAutoDiagnostics I used to do that too until one time when I was inside a tight space in a sorting machine. Really restricted access/vision. And I accidentally nailed a finger tip. That's when I learned to get kinky. Better safe than toasty. 😜

@willemstreutgers1154 11 месяцев назад

U can work a lot faster with those wrecked cars, when half the bodywork is removed. LOL Good fix Ivan.!

@zx8401ztv 11 месяцев назад

Well done Ivan 😀 That was hidden too well lol. Lets hope that there are no more R.T.B (Ready to break) wires in that harness. Sorry I'm dooming it lol.

@headhoncho4890 10 месяцев назад

Man this guy is intelligent

@danmadison5087 11 месяцев назад

My wife watches your videos. As a matter of fact. She's about 15 minutes behind me. Which gives me about 30 minutes to come up with a way to convince her that her car has "fancy all wheel drive" Thank your daddy kids. THANKS DAD! LOL Great videos. 😂

@razvanturcu9871 11 месяцев назад

Watched this video 2 times and I still am not able to fully understand this diagnostic procedure. I guess I have a lot to learn.

@PineHollowAutoDiagnostics 11 месяцев назад

I suggest to print out the wiring diagram (even take a screen shot), and follow along with each step taking notes. Only proceed to the next step when you have understood the previous step. This network is basically a loop of wire with 2 120 Ohm resistors at each end...you can easily simulate this on a bench and do some experiments with the ohm meter too :)

@on-site4094 11 месяцев назад

Another successful diagnosis & repair. if anyone can find the needle in the haystack it’s Ivan 👍

@derekmillar318 11 месяцев назад

Brilliant

@JOHNSUE28 11 месяцев назад

Thanks!

@PineHollowAutoDiagnostics 11 месяцев назад

Much appreciated 🙏🙂

@pcelectronicsaudiorepairan4164 11 месяцев назад

120Ω is the terminating resistor value at the end of the data line. Prevents ringing on the lines.

@antonisantonis655 11 месяцев назад

What a NICE video was that, so many skills and knowledge in one video!! AWSOME WORK for another time!! also a quick question, do you believe that a car that burns oil could have negative fuel trims because of the oil burning. I mean the burning oil produces more fumes than normal which makes the O2 sensor go high making the ECU to believe that the mixture is rich. Can something like that happen or not ?

@PineHollowAutoDiagnostics 11 месяцев назад

It would have to burn a LOT of oil to affect fuel trims 😅

@farmermiyagi1338 11 месяцев назад

Boy I cannot tell you disappointed I was to connect my fancy new Thinktool Pro to a 2001 Sunfire, but alas, I had to go back to my Zurich from HF. The thinktool would not read any of the modules. Granted I do like the graphing function better n the Thinktool, I was really expecting more. But it's another tool in the shop. ;)

@PineHollowAutoDiagnostics 11 месяцев назад

2001 Pontiac Sunfire? Should be able to read that no problem...

@briancarey2645 11 месяцев назад

what did we prove ? ivan knows what he is doing

@douglasburnside 11 месяцев назад

32:55 you scared me, _"...blown head gasket..."_ and my first thought was, "If that car has the Northstar engine, Todd is screwed." Fortunately, it appears that the Northstar wasn't an option in the 2014 CTS, this one has the in-line 4 cylinder.