Ford Expedition Pre-Collision Warnings and No Communication With Multiple Modules

[@MiracleMAX]

Anything we get from you Jake is always great value. It always gets my diagnostic mind sparking. Keep 'em comin!

[@markmaguire3554]

The DC/DC converter is used mainly to stabilise the module suppy voltages during vehicle start/stop functions.

[@commenter5469]

Also protect communication signal integrity from common mode interferences.

[@ThunderbirdRocket]

Thanks for sharing this information !

[@rolfkoopman2426]

I really don’t get it why you’re having like 18k followers instead of like a million. Just like Ivan’s channel, I think you’re one of the best in your business just like Ivan. At least on KZbin. I really like your videos Jake and I hope you make it big time.

[@rodvan-zeller6360]

Because there are more parts canon operators than diag. techs, different business model.

[@hnd2893]

I've fixed the A/C on cars that were in for driveabilities just so I could work in comfort, helps me to think. I see a lot of guys get DTC and Scope Tunnel Vision before they even stop and assess the situation, get vehicle history, in depth customer interviews, TSB & Recall Searches, etc, can help take the mystery out of some of this stuff, use the K.I.S.S principle as often as possible.

[@joescott3843]

Yes I want to see the Cummins video. Thanks for sharing you knowledge with us.

[@alrifainidal]

What a great video. You work smart not hard very smart guy thank you for sharing your knowledge

[@farman_yusif]

Yes show the video please... 😊

[@bartscave]

Thanks for taking the time to record this Jake! I appreciate it.

[@ericpolak2915]

Thanks for your talk

[@mikeburdi3464]

Hey Jake, thanks for posting this. I know that you guys don't have to do what you do but you do it for your audience and I know that a few of you do this to help your fellow techs like myself, just wanted to let you know that it's very much appreciated! I know the videos are a small part, the format, explanation, and editing is what takes up so much of your time, so thank you and keep up the great work! BTW, I would love to see the Cummins video! 👌🏼👍🏼

[@JoseSilveira-newhandleforYT]

Great diagnostic approach, Jake! If there wasn't a DC-DC converter module in between, it would have been a blown fuse :-) And that annoying module even has to be programmed! If you have the time, even a crippled video of the Cummins diesel, can be informative. PS: When the weather is hot and has high moisture content, my Ford C-Max throws water droplets at me, from the AC vent located about the same position as the crazy F-150. The water condensates and pools in the lower part of the pipe-vent connection and, when there is enough of it, the air flow sends droplets into the air. I guess that pool of water may leak down somewhere below but, luckily, not many days have simultaneous high temperature and high humidity, around here.

[@georgecaspira]

Luke Goss.. Great videos and easy to follow. One thing i did notice, you do videos that really do help the regular public.

[@autodiagyt]

lol well that’s not my intention. The primary purpose of this channel is to help technicians better understand things and some good ways to test hard issues.

[@georgecaspira]

@@autodiagyt Lol, interesting, you are killing 2 birds with one stone. maybe it's because you are easy to follow on screen, either way keep doing these videos, helps many many folks.

[@agoodneighborautorepair2176]

Very good diagnostic and excellent explanation.

[@bobbybrown8926]

great explanation of multiple of modules having issues and the fix.

[@RB-qb9ny]

Great video! Thank you for taking the time to shoot and edit!

[@stevemazzarella7212]

I like how u jumped power.. I have to watch it again!!

[@Mr2004MCSS]

Great diag Jake. I always learn something from you.

[@Wayne-p7n]

I'm still scratching my head about the dc to dc converter, great valuable video

[@mikechiodetti4482]

Eric O (SMA) has said the same thing. Pick one problem and go with that one, sometimes fixing that problem solves all the problems. Good one Jake.

[@NoName-yr1jv]

Well done Jake 👍

[@neverstoplearning382]

This is pure gold, thanks again Jake.

[@Saykes1994]

3:39 Jake yes we won't to see video!

[@cullenmiller8170]

Great video and diagnosis. It looks so simple when you lay it out that way. Obviously, having service data and basic research are a must or you can just replace a bunch of modules and make the big money. 😂😂

[@jarridmenzemer6183]

Yes show the vidoe

[@lorayhinny8956]

Thanks This was very helpful

[@JBlake-moon-shdo]

Of course we want to see the dodge Cummins diesel video Jake. Alway great to see your insights.

[@dblr616]

Pertaining to the f150 video/ all the corrosion you find. I’m from Michigan and I didn’t realize that your area would be so common for corrosion issues as much as you have posted. I’m like Eric O. I got a nose for it , aka the Corrosion King. I gave myself the nickname years ago but I may need to pass the name on to you Jake. As always great work on this one too and here’s to 2025. Let’s diagnose these cars and sniff out all the green

[@Discretesignals]

Great fix! Seems the DC to DC converter keeps the voltage stable (boost converter)to certain voltage sensitive components during a start stop restart.

[@paulspeller968]

nice bit of logical thinking my friend . service data is definitely a must . but what i will say never trust your service data 🤣🤣🤣 funny enough was working on a electric waste gate issue this morning scan tool was saying bank 1 and drawing was giving me the wrong wiring bit of testing and head scratching it was bank 2 at fault broken power wire so both were wrong. and that’s factory tool and service info . had an interesting conversation with the service group after “oh yes we new about that we are going to fix it next update “ nice 🤪🤪🤪.no foot note saying it’s wrong

[@mikechiodetti4482]

@paulspeller968 I once had that problem with a Snap-on Red Brick scanner years ago. When talking to the Snap-on programming engineer and explaining the problem, his answer was "Ya, We Know" followed by "When the next release of the updated plug in cartridge comes out it'll have the changes." At the time he said that, it was Sept-Oct of that year, around 1992- 1993. The next cartridge came out in April or May the next year! Thanks for nothing Snap-on! ! ! That answer didn't sit right with me and back then I used to get Motor Magazine monthly. So, I sent them the information about the vehicle problem, the Red Brick's readout and what the Snap-on engineer said. Motor Mag posted it in their magazine. I was trying to make sure that if other owners of the Snap-on Red Brick had this problem they wouldn't be diagnosing a problem. It was a Snap-on software problem.

[@panelman6002]

yes please show the video

[@dohcivic91]

U3000:49 in modules in Ford is normally the death code for them.

[@fredautos]

Nice one master jaké

[@Quickwrench75]

nice video. Always like watching you. I have a 2021 ford transit that has battery voltage on medium speed bus i have to check out. No comm with hvac module. Has battery voltage on both low and high med buss. Need to figure out plan of attack in next day or two.

[@autodiagyt]

Try to find places to separate the network in half and narrow it down

[@Quickwrench75]

@@autodiagyt I have found a few places this far to separate network but still haven’t found why I have battery voltage on medium high and low buss. Been having issues finding some of these modules on that network. I only have Mitchel pro demand and many things it isn’t showing me. But not enough power on lines to light a test light but scope reading battery voltage on both.

[@Quickwrench75]

@@autodiagyt trailer module was filled with water causing short to battery power on medium speed buss. Problem solved. Need new module and reprogram. HVAC came alive and is working fine with trailer module unplugged

[@daveerrington5166]

Well done sir

[@samrugtiv3839]

Yes let's see the Cummings video please . Sam

[@ratrodnation]

Great troubleshooting. Would love to see the dodge Cummins video too.

[@ebolti22]

Perfectly explained. What is the name of this documentation 17.28? I would like to see this movie about Ram Cumins.Why this Dc-Dc module when you can supply power from the battery directly?

[@CraneofBoulogne]

Good job on a Ford, they are aggravating!

[@4kkroto]

Great diagnostic video like always. How do you know which modules they need to be programmed. Thank you for sharing

[@autodiagyt]

Reading service information

[@4kkroto]

@@autodiagyt thank you

[@PineHollowAutoDiagnostics]

First non bot! 😂

[@scottwilliams1976]

😂😂gold, I have noticed your comment section lately

[@autodiagyt]

🤣🤣🤣

[@sheerwillsurvival2064]

I kinda like the porn bots 😉

[@ThunderbirdRocket]

Nice 👍🏼 ! We can defeat ‘em ! 😃😄

[@ThunderbirdRocket]

Excellent presentation ! Great job 👏🏼 !!

[@rodvan-zeller6360]

Very interesting video. DC to Dc converters purpose is to either boost, buck or steady a voltage, curious on the output voltage to the modules it feeds. Why did the codes clear on the second smart scan? Thank you in advance for your answer.

[@autodiagyt]

Because I gave the modules power so they was then online and communicating

[@rodvan-zeller6360]

@@autodiagyt Thank you for the explanation.

[@martinarrieta248]

Grasias

[@marlinyoung1606]

No videos left behind!

[@richardbrooks4597]

Hi I'm a fan of your work and I'm having some trouble with a 2021 jeep Rubicon I'm getting a p0629 fault code and it's a permanent code. I check fuse and fuel pump relay and they look ok. Please help me with wiring diagram and how I can find this problem . Thanks

[@autodiagyt]

You can get alldatadiy and get the wiring diagrams and code information.

[@richardcranium5839]

all i've ever seen on dc-dc converters are "buck converters" as like a laptop charger that takes the 12v from the accessory socket and boosts it to 19.2-19.5 volts to charge the laptop. is this the case here ? elevated voltage or is this really just nothing more than a power filter module? i know some component cameras need 24 volts along with some sensors. the outcome you got would be the same i guess my curiosity got the best of me.

[@autodiagyt]

It seems to just be there to filter the power.

[@jamrmask]

Jake, where did you find the sockets for your test lights?

[@autodiagyt]

Parts store

[@bas2876]

Why they call it an converter?12 volt in and 12 volt out

[@Max-j2r]

❤❤❤❤❤❤❤❤❤

[@robertsimpson7113]

I wanna' see the Cummins video

[@thewolf61691]

Any way I can get UConnect 8.4 UAM USB zip file from dealer connect as an end-user? Known issue that radio gets bricked when you swap the battery in the vehicle, 2020 Cherokee, do not want to pay dealer to perform radio firmware ($300!) because out of warranty

[@autodiagyt]

To do it aftermarket you will need to setup a witech account and when it’s all said and done the head ache and money it will cost you will be better off letting them do it. If you have all the needed hardware it will cost you $122 in subscriptions to update the radio.

[@thewolf61691]

@@autodiagyt ouch, thanks for the info.... Dealer wants $300 to download a zip file and do it.

[@3saudara.3]

I'm Edo from Indonesia, I want to learn about ECUs of various types of cars, please give me a lesson, sir

[@GroundedDiagnostics]

👍👍😄😄

[@GregoryBirulkin]

Are these Fords famous 5,000 dollars tail lights? 😢

[@autodiagyt]

The trucks are

[@paultrickett7134]

If you understand the ST and FT bits you would have only have to read the DTC'S on this one.

[@rodvan-zeller6360]

St and FT bits?

[@paultrickett7134]

@@rodvan-zeller6360 Status byte and failure type byte, the failure byte 49 has a description of Internal Electronic Failure , so reading u3000 49 gives us Control Module Internal Electronic Failure.

[@JD-iu3vi]

I don't feel like the repair is complete. It's not fully complete unless you know what caused the module to go bad. The real issue could still be there.

[@autodiagyt]

The real issue is an internal fault. The u3000-49 code description even explains that it’s an internal fault. What caused the fault? Think about the year the vehicle was made and the things going on in the world. Chip quality was greatly reduced in 2020 and 2021 so I actually see a lot of module failure from that time period.

[@expertprogrammingcentre7982]

@@autodiagytyou check every single wire every wire is ok nothing grounding or short circuit every wire has good readings.😅

[@expertprogrammingcentre7982]

@@autodiagytyou check every single wire every wire is ok nothing grounding or short circuit every wire has good readings.😅

[@joshstaton508]

Well, what would be your next step to prove something. How would you go about communicating with the customer and getting paid for the time your spending. Then when you find nothing what’s your process for explaining to the customer, and them accepting it took 3 more hours to prove it was nothing?

[@joesmo4749]

I had a dc to dc inverter go bad on a 2019 chevy equinox. No communication to the tcm, the tcm power ran straight through the dc inverter. Inverter was grounded out on inside and kept blowing the tcm power fuse. Roll Tide!

[@JD-iu3vi]

War Eagle!

[@joesmo4749]

@@JD-iu3vi Blasphemous !

[@scottwilliams1976]

Yes show the vid