Just your typical Cady CTS No Start

We have a 2004 Cadillac CTS that is a no start and a lot of U1000 codes.

[@bobcombs7138]

This is where experience pays off. Thanks for bringing us along on this one. I look forward to your videos!

[@bobflannagan7262]

Your videos all have very useful, high quality graphics and editing. I wish you many more subscribers!

[@craiggoodwin9704]

Thanks for this video. I found myself chuckling along with you. Kind of made my day a bit more fun. Thanks for Sharing!

[@JohnDoesGarage]

Thank you for another great video and walking those of us who don't have your experience through the diagnostic process in order for us to make the right diagnosis. Nobody explains your thought process better than you do. Thanks again.

[@advancedleveldiagnostics]

Great tip on the data references, never new that! Thank you!

[@car-key-programming]

And that was toooo easy, lol. Loved the way you did this diagnostics, so well explained and slow, not rushing anything. 👍

[@windward2818]

From a ECM standpoint the class 2 bus circuitry is very simplistic as compared to an HSCAN interface IC, and probably uses part of an off-the-shelf logic chip or transistor (for example a CMOS hex Schmitt inverter) in the circuitry. If so, the logic IC can be taken out by static electricity if one of the ceramic SMT input ESD caps are cracked (failed) which is not uncommon depending on where they are on the PCB in relation to the connector, and if subjected to any mechanical flexing, or perhaps the ECM is loose and can vibrate the connectors and the harness. This is an excellent opportunity to see if we can repair the ECM.

[@autodiagyt]

These ECMs are not repairable without special equipment. In was hoping they would approve getting a module so I could show the internals and why they are so unreliable but they decided to scrap the car. This ecm is used in a lot of vehicles, even Ferrari used 2 of them in one of their cars(v12 engine I believe) and they suffer failure all the time as well. It was a terrible design internally.

[@arthurfricchione8119]

Thanks for sharing. Have a good one Artie 👍

[@dtandfam8100]

Awesome info! Thanks for sharing 👍

[@billyyoder8171]

Thank you Jake. Good job. Have a great week.

[@JoseSilveira-newhandleforYT]

Sound thought process! Of course, your experience with these faults, makes the diagnostic faster :-) Wonder if those ECMs are repairable, all having a similar fault.

[@JoseSilveira-newhandleforYT]

@@autodiagyt Thanks! That is something to aspire to - would like to see it open 🙂

[@craiggoodwin9704]

@@autodiagyt I think that could be fun. Would appreciate seeing that.

[@russellhltn1396]

Nit pick. If the buss is fast enough, you can run into problems if the termination is missing. The reflections off the unterminated end can corrupt the data. This can lead to odd things like A can talk to B and C, but B and C can't talk to each other. It's all about where they are along the buss and how the reflections hit them.

[@Alpha06R]

Those Bosch Motronics are terrible ECMs not only on GMs, also on VWs, Volvos and Mercedes-Benzs. The first cars that have the GM High Feature V6 uses only those Motronics before GM swapping them for Delphi or Delco; I think heat is going to be the most common issue, as well as Vibrations because they are mounted in the upper portion of the engine.

[@Max-j2r]

Thank you sir

[@bornforparadise7517]

Nice ❤ is there any bonus footage for this one ??

[@spelunkerd]

I noticed the ground for your data signal wasn't quite zero, it was ~0.5V, but with key off the baseline was clearly zero at 7:27. Is that non zero ground a result of the internal defect within the PCM? Or, is that level of subtle difference often seen and not relevant?

[@spelunkerd]

@@autodiagyt Yes, that answers a lot, thank you.

[@martinarrieta248]

Grasias

[@danman9017]

tks

[@cullenmiller8170]

Do you have any luck with rebuilt ECMs? It seems to be hit and miss.

[@bobbywarthan5173]

I get new ones from the dealer and they still fail

[@sefofatai6618]

is that the new im608 pro 2 ?

[@aymenmohamed1134]

👍👍👍

[@calholli]

I was hoping you were going to pull it apart.

[@GroundedDiagnostics]

😊👍👍

[@marcokahny709]

It took me watching several of you vids before I subscribed and added you to the all star list of Ivan PHD , Eric O SMA , Eric Advanced level auto , Super Mario diagnostics and last but not least Keith DeFazio I'm 70 years old and suck this stuff in like a sponge 🧽 Everyone in my extended family calls me first before shooting the part's Cannons I appreciate sharing your knowledge thank you very much

[@nickayivor8432]

Thanks for sharing your knowledge with us My Mentor Automotive Diagnostics Programming SUBSTANTIAL Automotive Diagnostics Programming From Nick Ayivor from London England UK 🇬🇧 ⏰️ 15:17 good Afternoon

[@joeandgod1]

That has to be one of the worst cars ever made.

[@howarthcd]

I've seen your component-level ECM repair videos, is it possible to repair these ones? Have you determined what goes bad inside them?

[@joeandgod1]

As someone that specializes in electrical diagnostics, do you have a preference between Alldata or Mitchell?

[@joeandgod1]

@@autodiagyt Thanks

[@kyletuttle9064]

Thanks for sharing Jake.