Low Mileage Camry What Happened To You? Part 1-The Diag
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- Опубликовано: 20 окт 2024
- This 2022 Toyota Camry came in with a lot of warning light and messages including Low Braking Power and Power Steering Malfunction. Let's dig into it and figure out what's going on with it.
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This is a great educational masterpiece to anyone who doesn't know how communication system works.
You tickled every possible spot,
Powers grounds, communication lines, canbus lines, gateway module, can junction connectors, datalink.
Everything everything.
You got me at "tickled every possible spot". 😆😆👍
I love how it tells you to see the owners manual. The owners manual is not going to tell you what's going on. It will most likely explain to you not to drink automotive fluids, how to do basic driving skills, and not to drive with the hood or doors open.
It will explain how to go immediately to the dealership for a misdiagnosis! Oh, and that is not under warranty!
I WORKED FOR A TOYOTA DEALER ONCE, THE SERVICE INSTRUCTION RECOMMENDED that a short to ground must be tested on the CAN LINES.
I felt like I was in a professional classroom learning about CAN diagnostics! Excellent video Jake! Thank you!
Great video Jake, this is Diagnostic Gold. Very clear presentation and description of your approach. You are the Southern version of Ivan, at Pine Hollow Diagnostics.😀
Keep the videos coming. You should be at 100K subs
That dashboard looks like it is in lamp test mode :-) I really value your diagnostic strategy and your effort to explain it, Jake! After you detected the shorts, I was betting on a loom smashed against metal somewhere, but disconnecting the power steering removed the short, proving wiring is OK. Both modules damaged in such low mileage is weird...
Hope there is a Part 2. Great video!
I truly enjoy your diags.
Fantastic stuff, can't believe YT never recommended me your channel until now 👍
My first guest would have been a short to ground in the wiring harness. Excellent video!!!
Great diagnostic video as always Jake! I like the way you approach each of the CAN system problems, very well explain and thank you for showing with details the way you see every customer's concern. Learning a lot and always paying attention what tools you use. Thanks Jake.
One of the best training videos yet. Thanks
Awesome video my friend loved the way you diagnosed and Dissected each module differently!
People wonder why diagnostics cost so much these days.
Your knowledge and time is worth its weight in gold, and no one should have a problem paying or questioning you. I'm not saying they are😅 im just thinking out loud.
I’m a Toyota tech and this was a great learning experience 🔥
Just don't be the guy part 2 is about lol
That is nice work, Well done. I am looking forward to watching Part 2
I love watching you network diag
When this guy, Jake?, starts the video by saying this is a interesting one, you know it will be entertaining and educational and fun at the same time. Thanks man. Much appreciated, and cheers from us watching here in Norway. 🙂 👍🏽
Great video, top dollar testing .....look forward to follow up video.. cheers Jake
Great troubleshooting video, all the data links look like a spaghetti bowl, very hard to determine where inputs come from. Good work, good explanations.
Like the new tattoo on the ditch of your left arm. 👁️ Always love the new content I enjoy watching your detailed diag.
Lol that's been there a few years but thanks
@@autodiagyt I've just never noticed it before I guess. I have one in the same spot an eye. Also love the Honda b series engine tattoo.
The ambient temp sensor says -27F. Leads me to believe this was in a front end crash, someone ran over something that damaged a harness or some mice made a home out of the wiring.
It's a great dad who will trash his car so his child can get the 20 below boy scout merit badge. LOL
I bet the dealership could not fix it
bet they could after replacing every module, wire harness, and probably the body.
Great diagnostic vision.
That is an exceptional video very detailed and patiently performed thank you jake
Great video. Thanks for your time.
I like you always have these questions in my mind (but why ?)
Very good canbus tutorial though Jake, a good learning video 🙏🙏
Dang this is your average Jaguar vehicle
Try watching at 1.5X playback speed. Flows better.
Great teaching, thank you.
The power steering was suspect as it didn't work right at the start. Seems to be more to this than you would ever think, 14000 miles. A dealer may have run this though the auction rather than try to fix it. Flood car maybe.
does network lines run thru p/s to abs module. if so then that would explain abs offline. looks like a lightning strike or reverse jump maybe. very interesting.
Lightning strike or reverse jump. My thoughts exactly.
Excelente diagnóstico, parabéns!
OL on a digital meter stands for Over Limit, meaning that the reading is greater than the limits of the current range (manual or auto ranging).
Jake excellent video. You are the first technician I’ve watched how to check these vehicle CAN line through the gateway module and not through the DLC. EXCELLENT. I guess you have your powers and grounds but I’m wondering if you have a short to ground or wires shorted together would it have blown a fuse? Just curious and could there be a back feed issue if wires are shorted together ! Man your videos are so educational . Let’s see what pt. 2 uncovers . Thanks for taking the time to explain every scenario . 👍. Artie
Wonder if lightning stuck nearby and took out some modules..?
21:01 Oh, I didn't even notice, before you write!
2018 and up jeeps have a gateway that blocks scan tools . Unless you get a FCA subscription. Thank goodness someone very smart made a bypass cable to avoid subscription for DIY guys
Yep, but some cars you have to pull radios to access the gateway,i prefer to pay $50/yr than dealing pulling crappy plastics
@@mandytuning yeah very true some are horrible to get to . But my daughters 2020 jl is right under the steering wheel easy to get to nothing to remove except the two cable connections
For someone that deals with those vehicles often there is no way I would use a bypass cable. To time consuming for a $50 subscription.
@@autodiagyt for sure . I was talking DIY guys
Makes us all think to run into a car with multiple modules testing bad!
Had a similar problem on a 2011 Camry, no dash, A/C inop, the CAN was shorted , ended up being the steering angle sensor blew the resistor and shut down the CAN
Everyone loves a thriller 😁 keep them coming
What a great video. Learning from one of the best on the trade. Thanks Jake.
Yes the Toyota, especially newer ones have very complex networking. But I break it down like this. In your case ABS no communication and also with scan tool. I test like you did at the ABS and then go back to the wiring diagram. When I get to the junction connectors of the diagram, I just pick a circuit that is tied into the ABS and see where it leads. So for example the steering sensor is tied into the ABS. From their I see "Well can I talk to that module or is any other module complaining that it can't talk to that module?" If the answer is yes, I move on. If the answer is no, I'll go to that component and test there. With the connector plugged in and unplugged afterwards, because a bad module or sensor could be bringing down the network. From there depending on what I find I just work the checklist. If all modules test out good, well it is time for some ohm checking(yes I know that sucks and be very time consuming to do) and maybe jumpering wires afterwards. Last thing I will do is short to ground/voltage and Terminator resisting check. Usually at that point that will give me direction.
Definitely one thing with complex networking is I ask 21 questions to the client to help me pinpoint where I may want to start looking after studying the diagram. Also if anyone is curious, pretty much all the Gateway Network Modules are in passenger side behind the glove box.
Good video sir.
Interesting case study. I hope it’s not another lightning strike like that pickup you did awhile back.
Two connectors at front passenger door are the same, i found out they were misplaced, bodyshop while replacing the door, put 2 connectors in the wrong spots. Usually conectors and pins are all differently sized but in these cars they made two connectors the same. It was an avalon hybrid. Camry can relate.
JAKE, REALLY APPRECIATE THIS UR TIME AND EFFPORT TO LIGHT UP MY BRAIN HOW TO APPROACH AND TACKL SUCH AN ISSUE NOT TOO MANY TECHNITION KNOWS THAT RESPECT AWESOME VIDEO/INFORMATION NO SCHOOL WILL TEACH U THIS AND THANKS FOR SHARING.CHHHHHHRES FROM CANADA, ONTARIO.
Why the manufacturers don't make diagnostic software that puts individual modules in a loop so the output can be compared to manufacturers designed signal outputs. Basically it loops the module to check all signals, voltages, and grounds. Knowing the correct frequency and voltage output would be very helpful along with placing them on the schematics and wiring diagram. You don't know if you should have 3.5vdc or lower as an output. The assumption is a 5vdc output similar to the reference voltage
Toyota actually does a great job of telling you in service information what a wire should have. Its call Terminal of ECU just find the document for the module in question.
My best bet is the steering angle sensor, it's the one that works the most constantly turning with the steering
I do a lot of work for a used car dealership that gets their cars from the auction and a lot of them are Enterprize rental cars, not sure why but the mfg wont warranty anything. Great video.
Interesting when you were looking at the databus with your scope at the abs connector it was showing the bus being pulled up even though it looked like trash. If both Can lines were shorted to ground, would you even see any activity at all?
@@Discretesignals depends on how strong the short to ground is.
I really really enjoy your videos and I'm learning a lot.
Please check to see if the power steering motors is shorted to ground through the case housing? 🔥
Is this a flood vehicle, check the title and Carfax.
Also are you using your laptop for electrical diagrams in this video?
Yes I was using my laptop for the diagrams.
Great diagnosis, I wonder how Toyota handles ownership transfers regarding warranty. Both parts are pricey if not covered. I think we're not done yet with the window switch issue. This car is too new for all of these problems. Brings to mind problems with the lighting strike pick up truck repair video...
The power steering module does look bad. Maybe the ABS module has an intermittent problem, but I'd make sure it's bad and not a pin fitment problem or something else causing the ABS module not to work, according to the scanner.
Excellent diag. I would also be suspicious of a possible scanner software issue (not communicating with the abs module). Did the other modules in the car reset the no com With abs codes after the code clear? Cool video, I enjoyed it!
Not a scantool issue.
@@autodiagyt cool, maybe I missed it on the video, but my last step would be to confirm communication was restored at the abs module after disconnecting the power steering module. (When you did continuity testing both can wires were shorted at the power steering module, leaving the possibility of a break in 1 can wire going to the abs module.) 2 modules at once on a 2022 (there has to be a story there😁)
@@JessClearyAutoRepairLLC when I was testing the wires from the gateway to the abs module the proved circuit integrity. I didn’t show where I went back and checked it again after unplugging the power steering but I did double check them. So by knowing the wires was good from the gateway to the abs it had to have data getting to it. You’ll see in part 3 why it doesn’t communicate.
Low battery and jump starts can cause multiple modules to go at once.
Excellent video.
Seen a diagnose Dan video about the ohm meter he was checking a wire from end to end it showed good continuity but it ended up being a shorted to ground wire. I’ll try and find it again to link it in the next comment. So after that I always check it for a short to ground after checking continuity from end to end
volvo construction equipment A25G-A45G has 40ohm can lines.
Gold 👊
How old is the b-series? Is it a b18c5 or a jdm b16b? How many miles?
I actually think its cool, i have a ls/v sitting within reach of my laptop. Cool tattoo for sure.
JDM b16b lol. I got that probably 17 years ago maybe longer. It was my favorite Honda engine and I knew a tattoo of one was the only way I'd ever afford one lol
@autodiagyt I have a 94 db8 Integra that I've had in pieces since 08. Gonna try to get it back on the road this winter. If you thought type r engines were expensive back in the day don't look them up nowadays, you need a mortgage to get one.
Just call the car Christine and be done with it 😁
Great video. I love this stuff
Great work 👏
Like all your videos would like to see more u scope action because I own one
Could have been wrecked in the past or maybe flood damaged. Or might be a lemon law buy back, or maybe it was repossessed and then auctioned by the dealership because of all the no comms and dash warning lights. People generally freak out over a bunch of lights, but imo the more lights, the more likely it will all filter down to one actual problem (ground/power/comm) that has a ton of side effects.
Im curious why pulling the network spluce pack connectors and looking at each subnet wasn't on the table. Aiui, CAN devices pretty much all will "talk" without being "spoken to". The splice connectors seem like good places to look at the signals of each device; the power steering module should have been fairly easy to spot outputting a mess of a signal. Obviously you cant diagnose every possible network issue from the splice connectors, but you can access several network segments, or devices from one connector. Everyone is different, and im certainly not saying anything was done wrong here, I'm just sounding off on my thought process.
Just keep watching the series lol
My BS-meter is going off that 2 modules are dead. Something's rotten in Japan. Any signs of a flood, or that somebody swapped in a bad module before selling the car?
Nope nothing like that.
With the low mileage, wouldn't that be covered by the manufacturer warranty
That was a great diag, I'm curious to know did the power windows start working again? The reason I asked I put an alternator in my 05 Toyota Avalon a few months ago and my pass. side window stopped working from the master switch but it does work from the pass. door switch, all the other windows do work.
That will be in part 3 or 4 but roll the window down holding the button for 3 seconds after it stops and then roll it up and hold for 3 seconds. It sounds like they need to have the stop limits learned.
@@autodiagyt From the pass. door? Cause it won't work from the drivers door, it used to.
@@ws2664 yes from the passenger door
@@autodiagyt I didn't want that be a stupid question but I had to ask, Thanks.
@@autodiagyt holy crap it worked you're a genius, thanks for that tip.
I wish you would explain the diagram a little more detailed please: like at 18:55 -- Why do the CAN lines have two sets of numbers? Why does it have A and B with circles around it?? What do the little dotted lines mean? What does the (7") or (8") mean? I just don't know what I'm looking at. :)
I covered the 7 8 options and the A B is just to help keep track of which you should be looking at.
can you tell me what's resistor between 6 and 14 on 2019 Honda civic at dlc with gate way module and what cause both can hi and can low stay flat at 2.5 volt with scope no wave form
On some vehicles with a gateway the dlc will only have data packets when a scan tool is actively communicating with the vehicle.
I have a 2023 Honda pilot that I'm doing an airbag job on due to the bone accident and curtain airbag deployment. I did not do the original diag and estimate I was just handed a pile of parts to install. After everything is installed I have an internal fault for every impact sensor and safing sensor. New Module installed and ecu rewrite done. I now si states all of that side impact sensor and safing sensor needs to be replaced after deployment. Ya'll ever run into this? Tomorrow I'll be pulling the rear seats too unplug the safing sensor and see if it gets rid of all the other codes
When it comes to collision damage always follow the OEM recommendations. Google John Eagle Lawsuit and it will tell you 31 million reasons why you follow it exactly.
@autodiagyt exactly. I know this, whoever did the diag did not follow it and I always use icar to do my parts list, it has all the oe info in one place. It even tells you exactly what interior trim to replace for whatever airbag deployment happened. I believe in operational consistency as I treat every car I work on like my family will be traveling cross country in it without me.
A lot easier if you just replace the most expensive module first.. That is where the trouble always seems to be. LOL
Man my company provides all the big stuff but there aint a single scope in the whole nation assigned to us, the real expensive stuff we send to each other when needed, like the Mercedes tool that's 55k for the laptop and software lol. Where can i get that basic scope so i can continue to learn and step up my diag level. I've needed one a few times now and had to give up as im a mobile flag tech and could not invest any more time on the cars. That lil scope would be plenty to help me along i think
It’s the aeswave.com uScope. Being a mobile guy working for a company I would ask for a autel ms919 because the Vci is also a scope and also you could setup remote expert on it.
grounds ?
Checked
Wouldn’t still be covered under warranty??
That is covered in part 2...
Bodyshop/collision repair damage, possibly? Or salvage/rebuilt title. Toyota won't warranty those.
@@rexberttechnica6702 I cover this coming up in part 2
If you really want to get technical, you could try to think of common sensors or loads on both the power steering and abs systems. I certainly can't think of anything, but maybe there's someone in the comments that knows of something.
43:05 "look at that, OL...open loop" incorrect, in Fluke speak as your multimeter is it's 'OverLoad' !
Technically it's "Over Limit" and when checking circuit resistance that is basically saying the resistance is so high the meter cannot calculate it and for a meter that can calculate in the millions of ohms it's pretty much guaranteed that if you read OL on a resistance check then it's a open loop.
@@autodiagyt here we go, been educated now trying to educate me, from Fluke - If the measurement is higher than the set range, the multimeter will display OL (overload).
From memory Snap on speak is Outer Limit/s.
@@BBS_Robski which specific user manual are you referring too because my manual that came with my 117 states OL -The input is to large for the selected range. No where in it does it say “over load” “open loop”. They might of stated it as overload at some point but it’s still technically incorrect terminology unless the meter is measuring a load which would be an amp measurement. You can refer to it however you want but I’ve never heard anyone with any kind of electrical knowledge saying the resistance of that solenoid was so high it overloaded my meter.
Really great network video
May be can and ecu out sensor ground short ex torque sensor
I am a Tech for the Dealer . Sometimes we have. Cars with this problems . We report this car to the Jefe end the Dealer Purchase the car back and they sell it in the action asi is no warranty
Another lighting strike!!??😃
You think so?
@@autodiagyt Well, you had a great case study before with lightning and you certainly have plenty of oddball autos with crazy electrical faults in your shop, so maybe. 😃
A flood vehicle?
Nope, no flood damage at all.
You didnt recheck the power to the abs
No need to recheck the power. I didn't show rechecking the data on the video because the circuit testing from the gateway to the abs proved it was intact. I did double check them after unplugging the power steering and the result was the same so I didn't put that in the video.
Steering , braking,throttle shoud be manual. Cars aren't airplanes and airplanes have protocols in the event something go's wrong . In a automobile you can't lok through the error check list
Cars don't have 3 ways to control all the critical systems
Mostly important modules for safety and comfort doesn't work! On Toyota...and top of that for two years after... weird...
Is this another lightning strike car?
Idk
Probably it’s flooded car. Toyota doesn’t have that kind of problem usually.
No flood damage
👍👍
two modules down, maybe somebody jump started this car and did not use cables with spike protection or inverted poles, i would measure the data cable resistance and short to +or - also in the modules inside connector, anyway why is this not @ toyota dealer for warranty something smells strange here..
i suspect one problem and the others were the result of bad diagnostic procedures
Lightning?
Idk possibly
❤❤❤❤❤❤❤
ECM, gateway module and 4 different junction boxes just for the CAN lines. lol.. could they make it any more ridiculous. lol
It's pretty ridiculous for sure.
Was the car in a wreck
That's covered in part 2
right up my street this one . not so much the 2 module fails to be fair think i have only seen it 3 or 4 times in my travels mind you i am 58 🤪🤪 so my memory is not the best . flood damage and lighting strike if i remember right . oh and there was one with some dodgy aftermarket parts cooked 2 modules . i tell you that is some wacky can routing that’s for sure 😵💫
Possibly car hit by lightning or near hit......
Can you please send me a part # for your u scope
It's the Aeswave.com uScope
Thanks
Looks like rats went under the hood and bit all the wires😅
No wiring damage
All the newer ford's have 120 ohms at the dlc which through me for a loop just checking known good vehicles
Gm done that also and it was intentional. The thought was if a technician seen 120 expecting to see 60 they would then assume an open circuit and look at the wiring diagram. Once they seen the diagram they would realize the dlc is only connected to the gateway module.
It was most likely jump started backwards. So terrible for modern cars.
Usually with a reverse polarity though I find blown fuses and a lot of times those modules will continue to blow fuses.
Whats to say they're just garbage Chinese made parts, Japan has been outsourcing much of its parts
i didnt notice it in the diagram but is their a can network between the abs and eps thats not turning the abs on its weird 2 modules at the same time i dont belive belive in coincidunce some thing has happined or been over looked right diag yes but 2 down at the same time na dont trust that 1 and i dont think u do either m8
That will be discussed in part 3
@@autodiagyt i am an auto tech in the uk i just smell something funkie on this 1 m8
why are you working on a car that's under factory warranty
Part 2 answers that.
USA NJ
bad fuse put in a new one work for a couple days
blue again couple more days and blue again
the rubber hanger for the tailpipe broke bang the oxygen sensor into the wall blew the fuse
👍🆒