This Corvette is not Locking and Unlocking Correctly
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- Опубліковано 1 жов 2024
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Good fix on changing the relays instead of the whole module! Adding fresh solder when de-soldering always helps melt existing. Adds surface area to conduct more heat and also if a better solder with lower melting point helps melt the lead free cheap shit they use now, well that they have used for years. But just a touch of fresh solder works almost instantly.
With 25 years of electrical troubleshooting experience, mostly industrial grian handling facilities, I was always scared of 12vDC, the more I watch, the more I want to change professions. The similarities are astonishing and you don't have to run up and down a 125 foot building to "test modules" 😅 great job! methodical, concise, thorough!
I can almost guarantee that your field pays better though. Automotive always seems to be alot of self justification to get paid fairly.
On this.. It really depends on the cost of the module. With it being such a fancy car and the fact that the module has other relays for the mirror and window, etc.. If it were my car, I'd almost rather just get new modules for them personally-- as long as they weren't crazy over priced. Just for the possibility that the window or mirror relays might be ready to die too, like in a few months. But it has such low miles and the fact that it already failed just shows that you can't win either way. :) ... even a new module might still fail again in another 30k miles. Great video work..
My first thought was some kind of initialization error. As you clearly demonstrate, the backbone of the circuit is similar to a light bulb in a home controlled by two switches. Add in relay control, and a solenoid that is polarity sensitive, and you've got the circuit. What a great demo. As these modules get more expensive and hard to find in a junk yard, this approach will be valuable. Gotta love board repair.
Experience diagnosis master mui. Bueno
Good job Jake mighty fine soldering. Sam
I tried soldering a BENZ transmission computer after watching a UA-cam video next thing I watched was the wrecker truck taking the car to a Benz dealer 😅
Oh no lol
Jake, great video !!…I do Corvette diagnostics down here in Florida…where did you purchase those relays ??
Supplier on ebay has them in stock in California the nec would had to come from China and taken a month
frightening part is i understood exactly what you were doing 😱😱😱 . have to say you have more patience than i do . last one like that i did was a ford cmax immo was on dash lights wonky , wicks the cluster connection and it came back good . took the cluster apart and the crap lead free solder they use had cracked . problem is have is my eyes are not quite what they are so need the magnifying glass now days 🤣🤣🤣🤣
Superb repair you saved the guy lots of money which is cool loved it..learning alot ftom you sir..today solved com issue on ford evrest 2016 by the method of checking com wires and understanding logic by you and ivan ftom phad ..you guys are awsum ..thx for being a teacher ...cheers
That’s awesome
Terrific component repair! Great video.
And two thumbs up for the microscope portion!
That reminds me- what brand of microscope is he using? I like how well it works.😀
What Flux do you use and what do you use to clean the board after you are done working on it?
Just some off Amazon. I’m not picky about my flux. To me good solder makes a big difference and I only use Kester
Great job, i just did the relays on a volvo cem module and another for a fiat for the head lights. Still don't know why manufacturers put inboard relays in modules 🤔 and not outside easy to swap. I like the way you approach the problem to find the culprit. 👍👍👍👍👍
Jake, you are the man! You listen to your subscribers! Thank you so much for your hard work and showing working on boards per my request and I’m sure others! Would love to learn the technical names for chips and what they do! Because with all the shortages in modules and parts, repairing these boards is probably where it’s going to be at now and in the future! God bless you, Jake and your family! We love your videos❤
MG chemicals makes an awesome conformal coating remover. Just put a little bit on the area you want to remove, let it sit for a minute, and it’ll wipe right off. I love that stuff!
man that looks so much easier to diag than the old system where the switch just reversed polarity yep they are making it so much easier less parts less wires can't believe how much easier that is to diag now man what have i been missing i sure wish my 1994 ram 2500 had all that to make it easier i am just depressed
What grinds my gears, is the fact that when they engineered those door control boards, they easily could have put socketed relays and an access port on them so you could just unplug and plug new relays in without even taking the module off of the door. On a solid state board, of course the mechanical points on the relays are going to be the first thing to wear out. Typical planned obsolescence engineering.
This would work perfectly if you were breaking up with a young lady🤣🤪👍
It's called conformal coating.
great fix, a good desoldering gun is worth the cost for jobs like this. they put out plenty of heat, low melt solder helps as well
I’ve got a desolder station but I’m just as quick with my plunger usually
Great show! I've made some pretty amazing fixes in 45 yrs. of wrenching but tiny soldering is not in my wheelhouse. That was amazing skill. I would have that whole board melted in a blob😂I then would have smashed with my bfh😅 Curious, what was price and availability of new door modules? Mere mortal mechanics are gonna replace the module in the interest of time, if it's available. Great job!
Discontinued. Used is the only option and I’m not sure the price.
Nice work! I love component level repairs... when easy!
“Pretty nice, other than this.” 👉. 😂😂😂😂😂😂😂😂😂😂😂
Thanks for showing how to and what look for during soldering.
Maybe hold the solder iron more upright. It looked like it was heating adjacent pads since it was held almost horizontally.
I really should have swapped out to a bigger tip but holding at an angle is about getting more surface area contact. I wasn’t touching any other pads.
Oh hell yeah, rare to see board level diagnostics!
One goes one way but not the other way the other goes this way but not that way... Confused you will be on this episode of AutoDiag YT channel. 🤣🤣👍👍
Man I was too lol
Very rewarding! Thanks for sharing!
Good job 👍
Some Louis Rossmann style action. ;)
Food for the brain. Thanks again.
How nice is that , Smart man. Nice work
P0420 permanent code how are u able to clear permanent if u can. On a buick enclave
It’s not permanent it needs to pass the monitor and after so many passes it clears itself.
Great video, what type of microscope did you use?
Some cheap one from eBay lol
@@autodiagyt been looking around for one that would not break the bank lol , great videos keep up the good work.
I absolutely adore your videos
Do you use different solder for circuit boards vs connecting wires? And do you use different soldering irons?
I pretty much use the same 60/40 0.031” solder for everything. I have different iron tips for different size things I’m soldering on a board
It's great to watch an artist at work.
I think you should do the video anyway, just because your that good and I want to see you do it twice.
😂
a job like this neede fair amount of time to diagnose and fix , my question is how much would you charge for a job like this since you could spend similar amount of time doinng more profitable job such as programing a module .
what is the best way to charge for your time .
thanks
You charge what it’s worth.
Long answer is, I charge what I need to be profitable and while I could be more profitable programming a module I still like to maintain a great relationship with my shops so I do these jobs to help them have happy customers and they stay happy.
Can you burn the board with to much heat or heat cycles of the soldering iron?
Yes you can burn pads loose. It’s just something you need to practice
Cool video and fix Jake!
again thanks so much for sharing i have gained a lot of useful information the way you explain i understand easily some are harder to understand and some of it is where they are located and speech is different but i have learned so much from you tube people like you really perform a wonderful service to people like me. i grew up as a mechanic in a automobile salvage yard self taught didn't understand the need for scopes until a few years ago and has been a learning experience for someone my age i am now 67 thanks again for going slow which helps me understand
Great job you nailed it. Open up the bad relay to see why it failed.
Just pitted contacts
nice job loved it
Lucky you could change the relays. When I had a module with a bad relay, it was a module change followed by a return of the old module to the dealer.
Good fix and video Jake.
Awesome
Well done~!
Grasias
Good job.
What microscopice are you using?
I can’t remember. It was on eBay.
H bridge, I never could understand why mosfets not in use, with relay contact points burn out . $$??
I was very tempted to replace it with solid state lol
@@autodiagyt for 20 cent more they could have added arc suppression to keep contacts new for years.
@@overload3996 I had to do that on my washing machine. There was a module that controlled water fill and the relay contacts kept burning out. I replaced the relay and added a "RC snubber" across the contacts and have not had any more problems. The "RC snubber" component cost a little over a dollar.
Well done 👍
Awesome video and diagnosis. Also thanks for showing the process of changing out the relays. I’m just getting into soldering and what solder and flux do you use. Also do you recoat the new solder joint with some kind of coating?
I feel like quality solder is more important than flux so I only use Kessler solder and the flux I just buy whatever lol both are linked in my Amazon store I believe. As for recoating board it depends on what it is and where it is. Close terminals in height humidity yes I coat them, far apart like these relays na
Good job, Jake! For a moment I thought you were only replacing one of the relays, but the voltage to the motor has to go through both of them, meaning any of them could be the culprit.
Well no it only needed the 1 relay but seeing how I had 2 bad I just did all 4 as prevention and the cost of the relays isn’t much.
@@autodiagyt OK! That means you narrowed it to a single relay - I didn't get that in the video. Anyway, well done replacing the failure-prone, electro-mechanical parts in those modules!
@@JoseSilveira-newhandleforYT When the relays are off, both connect ground to their respective wires. When lock or unlock is commanded, one of the relays switches power to one of the wires. This is a common circuit for any load that uses polarity reversal to work. A good example is the power trim motor on an outboard
@@brucelott3583 Yep, but current passes by both relay contacts, independently of the direction of rotation, meaning that any of the relays can hinder the process, by poor contact, either on the ground side or the power side. Switching contacts may fail only on one of the positions, which was the case here.
Thanks for sharing Jake. I wonder what would cause 4 relays to fail at the same time? Interesting to know if the other side was repaired and fixed the same way. Thank you 👍
It was just 2 bad relays. I replaced all 4 as preventative measures.
@@autodiagyt thanks Jake👍
I really liked this an automotive locksmith. The part I wasn't sure about was if the module is sending 12V over 2 wires to the actuator is it screw based? Winds and unwinds? Over 2 wires it can't have logic. The logic is on the module side. I could only think it was like a regular screw based actuator.
It’s just a plunger that pushes a lever back and forth
@@autodiagyt Ahhh OK so depending where it is it just moves the other way.
@@scotts4125 the polarity of the magnetic field will push or pull the plunger
Chimsy Delco electronics... Who would've guessed 😂 especially early 2000s