When the owner says that the temperature gauge goes way up even before the engine starts, it seemed odd that somebody changed the thermostat when it seems obvious that the gauge is showing an incorrect temperature.
Don't go there. All car companies do this. Think, new Bronco sport? Yep. How do they call that a Bronco? Oh yes, Chevy too. The new Blazer. No comment.
It's no longer Chrysler. The word is Stellantis which is either a new erectile dysfunction drug or the latest iteration of Chrysler and can't figure out whether it's French or Italian...
As a Wrangler Rubicon owner, if they have to sell cheap econoboxes to college students and people with bad credit to keep making Rubicons for me, I'm ok with that.
They just released a Wrangler with a 392ci V8 that does 0-60 in 4 seconds flat. The company may be different by name, but for the most part they don't seem all that different by nature :D
And he writes: The only things I am qualified for is oil changes and tire pressure checks. After that I am completely at the mercy of my local repair shops. However I am still fascinated by your approach to seemingly impossible electrical issues. I’m responsible for at least 5 more subscribers you have by word of mouth. Wish you were local. Love always,………………
DIY home gamer here. Like most DIY'ers, I have no problems turning wrenches, it is the diagnostic side of things that presents a challenge. I have learned SO much from watching your videos, and become so much better at diagnosing my own problems. Keep up the awesome work, and my thanks for all that you have taught me and DIY'ers all over the net!
Never thought OEM would lead you astray like that and generic was better in this case. Proves you're never too old to learn. Thanks Eric and keep up the great videos.
Other channels try to be informative and entertaining but if you want proper diagnosis then Eric is the best, plus he’s entertaining, well I think so ,
Thanks for the important difference between OEM and generic data. Those little tidbits are often overlooked or not included in documentation. I always try to differentiate the terms data and information with data being the raw values and information being processed data. OEM is information in this case.
I just bought a scan tool, nothing fancy. I'm not a mechanic by trade but like working on my own cars. This was a great free lesson. Thanks Eric. You and Rainman Ray are the best cartubers around.
Eric, not sure if you’ll see this. But just wanted to say thank you! I’m not a mechanic. But I’ve learned so much! I’ve always been interested in what makes a car operate and everything else. And it’s pretty cool and fascinating to see how intricate and complex Vehicles are. Love your videos.
You had me at coolant around the terminals. Like you said, vehicle specific "substitutes what-it-wants-to-see data." Generic is raw. And shorting the 2 pins gave the wiring answer......it's good.
I had a GM the other day that had 42 codes set in OEM specific. There were voltage high and low codes for nearly every sensor under the hood. They wouldn't clear. However Global show no codes at all. Replaced the computer and that went away, but I had a bad crank sensor and cam sensor. No way to know that till I got the computer to stop flipping out on me though.
Good to know that scan tool is not going to pull a fast one over on old Erick. I would guess they got you once but not twice. You always play the "heads up" game and you do a very good job of it. Thanks for Sharing!
Well, I'm in luck because all I have is an OBD II scan tool, then again my '94 Ranger isn't that high tech either. Thanks for another informative lesson in diagnostics Mr O!
Learn something new everyday. Did not know the difference between the generic and specific obd2. I bet that's one of those tricks Me-Maw taught you. 😁 Good ole me maw. Never let's us down.
Used to rebuild my own starters, but now that I'm 67 I find I value my time more, especially when the parts are hard to get. Last year the GM starter on my wife's car developed an intermittent no crank. Electrical feed was OK. The pinion gear end shaft had worn through the bushing right into the housing so I was really glad I got a new one before I tore it out. Harder removal than in this video. The old starter never made noise, just the intermittent no crank.
What did we learn today? If you're going to fire the parts canon at an issue like this then change the thermostat and the temp sensor at the same time.
Great video as always! The thermostat setup is a dual thermostat and kinda complicated if you're not used to the design. The vehicle specific data can confuse ya if you're looking at something you're not already familiar with. Your videos have not only a technical aspect but also a teaching aspect as well, hold your head up high my friend.
I am concerned you are too good and all the other shops will have to close! Lol! In all seriousness, we all love you Mr O! Keep up the great work and great videos.
Great lesson Eric on OBD generic vs OEM data. As always great video and hang in there with the old smeller i got the COVID about a month ago and still have no smell or taste.
man, super fun stuff here. Sure, it's an easy fix, but the big takeaway is how once you're pretty sure it's a sensor, you can PROVE it. Excellent diagnosis, i LOVE this stuff Eric O.
Interesting. I never thought about OEM data substituting that way. I always thing of it Subbing a real value to Global, for instance a car that has a AFR sensor, substituting O2 voltages to the Global Live data, not the other way around.
You know it's a Mopar when it needs to have a throttle light! Had a rental liberty and the throttle had a mind of its own. Glad this brand is good job security!
The amount of electrical issues you chase down is amazing. You almost need to be an electrical engineer to work on cars these days. Thanks for an other video, Eric.
You da man!! Know matter what your wife says!! I tend to learn something every time I watch one of your videos. Thanks!! Stay safe my friend.👍🤓👍🤓Randy.
Have you ever seen substituted voltage values? I can see how it would substitute an interpretation, but substituting an actual voltage value would be another step toward confusing diagnostics.... In any case, it is too bad there isn't a flag to identify when a value is substituted.
All the sensors on a vehicle with electronic engine management generate an analog signal (varying voltage). At the PCM (powertrain control module) the analog signal is converted to a digital value. Then logic within the PCM analyzes this digital value and determines if it makes sense when compared to other values (oil temperature, intake air temperature). If it does not then a value is substituted. So there would be no reason for the engine management logic to substitue a value for the analog signal. Just substitue on the converted value; analog to digital. And as Eric O has indicated a substituted value parameter is used to keep the engine running (if possible) and not leave the vehicle stranded and non-operational.
Looks like the other shop just chose the first thing on the list. How did a technician think a bad thermostat would cause a gauge to read high temp when the motor was dead cold. I'm no tech, but as soon as Eric said the temp gauge goes up when the car is cold, my mind said temp sensor. Not having a bunch of fancy scanners, I would have just unplugged the sensor and looked to see if the gauge went back to zero.
Unfortunately because the temp gage is networked it likely won't read cold unplugged due to the open circuit. In most cases the gage will indicate an overheat condition as that would get your attention.
Agreed, looks like someone pulled the codes, checked the service data, saw the first thing on the list that was a replacement part ( I think it was listed as the second possible fault), slapped it in, and called it done. Some of the stuff Eric gets from "The Other Shop" is a bit of a tougher diagnosis but this was a bit pathetic. I mean if you're going to load up the parts cannon, with the faults described temp sensor should have been the first option! Still like the video Eric! Love the way you work!
I'm surprised they let it roll out the door with the light still on instead of guessing the temp sensor next. These morons usually just keep buying parts until it's "fixed".
@@grannyflatgarage7599 The thermostat seems like a go to part for a lot of places, not sure if lazy or incompetent, but considering the temp shot up on a cold engine it makes no sense as a thermostat will never cause that symptom.
Very interesting and guess what? I'm doing the thermostat/ect sensor on a 17 Cherokee 2.4 Multi-air tomorrow. PITA!!! Piece of sh!t Italian or is it German junk. That was some good information, thanks Eric
In VW/Audis this sensor is a dual one, measures twice the same coolant temp, one signal goes to dashpod and maybe ac and the other goes to ecm. Commonly one circuit breaks and drives mechanics and DIYers crazy, common failure for diagnosing cooling issues on a perfectly running engine.
I dislike substituted values too. Can be hard to distinguish between what’s real and what a computer making stuff up. Usually end up doing like you and second guessing things. So, end up looking for other values or checking things in a different way to see what makes sense. And, at least with a lot of medium/heavy duty stuff there will be multiple things labeled as something similar on the data stream. Usually just ignore the ones that are wild unless there’s a code for them. I think it’s stuff that’s optional or just making room for possible future stuff in the programming.
Been watching this channel for so long now I know what's about to happen.... Been to another shop (check) parts cannon (check) bunch of strange codes and behavior (check) Someone's been here before (check) Go to the fridge to get a beer and Eric's got it diagnosed and fixed before I get back (check)
Thank you for explaining about generic vs OEM specific. Sometime would like to hear about why OEM uses substitute values and how substitute values can be helpful in diagnostics. Thanks
You have so much talent when it comes to wrenching bolts and trouble shooting. I bought a 2004 F350 truck 10,000 dump and the ex owner tried to rewire the rear lights and cut them. I know you do not like to give advice however can you tell me where I can purchase a 2004 F350 wire manual for my truck. Thanks for any help.
If I am not mistaken that engine has 2 thermostats, I wonder if both were changed. What I am getting at is if I were to change both I would have changed the whole housing as it is plastic and I think the OEM comes with the sensor. Had he done this the parts cannon would have worked. Just something to think about.
Excellent vid. I just went thru this with a 2017 Buick LaCrosse 3.6. Codes for t stat, fans come on and stay on, temp gauge bottomed out on C. Shop already put in a stat. OE scan data from the OTC showed 158* live data. Unplug the ETC and it showed -40. Jump the harness, and it showed 158*.. In generic, same scanner, it showed 240*, harness NOT jumped. The ETC had failed, and the t stat code was because the fans were always running on med speed, it couldn't warm up correctly. New ETC, clear codes, and then the gauge worked, no fans until 207*. I will say that I don't understand why the gauge showed C instead of H, but whatever.
Just a fun-fact for the day FYI, -40 F just happens to equal -40 C. That’s the only temps using those two temp scales that are the same. 212 F = 100 C 32 F = 0 C -40 F = -40 C
hello Eric, let me explain what I have in mind regarding the minute (9:49) of this this video of yours and I don't know if I'm right. 1-. ($7E8 HEX is equal to 2024 decimal) this is the current temperature of the vehicle under scanning (228.2 ºF) 2-. so ($7E9 is 2025 decimal) 429ºF is the high side of the scale used by the CPU (and $06 mode) and the low side of the scale is (-40.00 ºF) In fact you can see this value on the scanner, inside the parentheses on the right site of the scanner screen, minute 9:49 this is the complete scale. Also, computers communicate by (HEX and 1's and 0’s) I repeat, I don't know if I'm okay. Greetings from Tijuana B.C, 🇲🇽 Mexico.
Seems that there are several checks that get fired before the ECM decides to show the real value. Like they decided to show a hardcoded value mid way their decision tree, not kosher. It might be showing what a mess of spaghetti code they have burned in their ECMs
Have you heard anything about Chrysler 2018 and newer having to have a subsciption to read ecm/pcm information? My S-O dealer was telling me that you needed a $50 a year fee and scan tool needed wifi to work on them?
Yes with a security gateway module you have to sign up on Auto Auth webapp.autoauth.com/ or if you are using WiTech you have to sign into tech authority first
When the owner says that the temperature gauge goes way up even before the engine starts, it seemed odd that somebody changed the thermostat when it seems obvious that the gauge is showing an incorrect temperature.
Gives new meaning to the bumper stickers that proclaim, "It's a Jeep thing, you wouldn't understand."
The rest of us need "The Jeep thing, I don't understand" sticker.
The whole Chrysler company is a substituted value. How do they call that a Jeep?
Don't go there. All car companies do this. Think, new Bronco sport? Yep. How do they call that a Bronco? Oh yes, Chevy too. The new Blazer. No comment.
It's no longer Chrysler. The word is Stellantis which is either a new erectile dysfunction drug or the latest iteration of Chrysler and can't figure out whether it's French or Italian...
@@buckhorncortez It's HQ is in the Netherlands:)
As a Wrangler Rubicon owner, if they have to sell cheap econoboxes to college students and people with bad credit to keep making Rubicons for me, I'm ok with that.
They just released a Wrangler with a 392ci V8 that does 0-60 in 4 seconds flat. The company may be different by name, but for the most part they don't seem all that different by nature :D
Learned something Eric. Thanks much for the OBD generic vs OEM explanation. You're teaching and helping all of us learn. Good man
Afternoon Eric, my favorite expression you use “money light “
43 seconds ago!
You're really pumping these videos out! I hope TH-cam is rewarding you well!
You definitely deserve it!
And he writes: The only things I am qualified for is oil changes and tire pressure checks. After that I am completely at the mercy of my local repair shops.
However I am still fascinated by your approach to seemingly impossible electrical issues. I’m responsible for at least 5 more subscribers you have
by word of mouth. Wish you were local. Love always,………………
Been watching for 2+ years now. You are a great diagnostician.
Once again, another lesson learned. Never thought about using generic OBDII data in a case like this. Great info and another great video! Thanks!
DIY home gamer here. Like most DIY'ers, I have no problems turning wrenches, it is the diagnostic side of things that presents a challenge. I have learned SO much from watching your videos, and become so much better at diagnosing my own problems. Keep up the awesome work, and my thanks for all that you have taught me and DIY'ers all over the net!
Never thought OEM would lead you astray like that and generic was better in this case. Proves you're never too old to learn. Thanks Eric and keep up the great videos.
It always pays to be willing to learn new things.
GM has some wild default strategies but hey it's GM
Other channels try to be informative and entertaining but if you want proper diagnosis then Eric is the best, plus he’s entertaining, well I think so ,
I just got bit by this on a patriot yesterday with cooling fan command vs engine temp nonsense. Makes sense now!
Thanks for the important difference between OEM and generic data. Those little tidbits are often overlooked or not included in documentation. I always try to differentiate the terms data and information with data being the raw values and information being processed data. OEM is information in this case.
I just bought a scan tool, nothing fancy. I'm not a mechanic by trade but like working on my own cars. This was a great free lesson. Thanks Eric. You and Rainman Ray are the best cartubers around.
3 videos in a week, why am I so lucky. You are one of my favorite TH-camrs to watch and anytime you post is a good day to watch. 😀
I didn't expect to get a door prize when I watched this one! I love take home tips!
Solid tip on always sanity checking with Generic OBD2 values. Always informative. Thanks, Eric.
Eric, not sure if you’ll see this. But just wanted to say thank you! I’m not a mechanic. But I’ve learned so much! I’ve always been interested in what makes a car operate and everything else. And it’s pretty cool and fascinating to see how intricate and complex Vehicles are. Love your videos.
Every time I watch an Eric O video I learn something important. Thank you Eric.
You had me at coolant around the terminals. Like you said, vehicle specific "substitutes what-it-wants-to-see data." Generic is raw. And shorting the 2 pins gave the wiring answer......it's good.
I had a GM the other day that had 42 codes set in OEM specific. There were voltage high and low codes for nearly every sensor under the hood. They wouldn't clear. However Global show no codes at all. Replaced the computer and that went away, but I had a bad crank sensor and cam sensor. No way to know that till I got the computer to stop flipping out on me though.
No Jeep cap whilst you're working on a Jeep...not a sponsor? Excellence at SMA!
Thanks Eric
Just had this Conversation on Friday with my students and showed them like you just did.
Good to know that scan tool is not going to pull a fast one over on old Erick. I would guess they got you once but not twice. You always play the "heads up" game and you do a very good job of it. Thanks for Sharing!
Well, I'm in luck because all I have is an OBD II scan tool, then again my '94 Ranger isn't that high tech either. Thanks for another informative lesson in diagnostics Mr O!
Great job as always. Your a great teacher and explain troubleshooting easy to understand. Please keep posting all troubleshooting jobs.(my favorite)
You're my hero. Been watching all your videos for years. Thanks for helping me become smarter and believe in myself.
Learn something new everyday. Did not know the difference between the generic and specific obd2. I bet that's one of those tricks Me-Maw taught you. 😁 Good ole me maw. Never let's us down.
I have always learned something from every video you put out. I always wondered what OEM and non-OEM data was. Now I know
Learned something new, never new about the auto sub. Thank you Eric. Mrs O peering over your shoulder gave me a laugh (12:15)
Used to rebuild my own starters, but now that I'm 67 I find I value my time more, especially when the parts are hard to get. Last year the GM starter on my wife's car developed an intermittent no crank. Electrical feed was OK. The pinion gear end shaft had worn through the bushing right into the housing so I was really glad I got a new one before I tore it out. Harder removal than in this video. The old starter never made noise, just the intermittent no crank.
For a man who doesn't like vehicles?
You would be a perfect shop teacher in high school or training young mechanics!!
I like fixing cars I am just not a "car guy." By that I mean on my free time I don't like cars... not even a little haha
You do a great job on all the electrical issues. Tom
Here here!! All hail the diagnostic king!!!! Another superb video!
Good video, and great advice on the data…I can see how that could lead us down the wrong rabbit hole thinking there’s something else wrong
Another jeep with an issues, I'm shocked (!) great video dude love the content keep the great work up 😁
Fantastic information, great subtlety on the difference between OBD and OEM. Nothing but the best, as always. Thanks, Eric!
What did we learn today? If you're going to fire the parts canon at an issue like this then change the thermostat and the temp sensor at the same time.
Great video as always! The thermostat setup is a dual thermostat and kinda complicated if you're not used to the design. The vehicle specific data can confuse ya if you're looking at something you're not already familiar with. Your videos have not only a technical aspect but also a teaching aspect as well, hold your head up high my friend.
You are a truly superb teacher Eric O thank you from good old Blighty 👍🏻👍🏻
I am concerned you are too good and all the other shops will have to close! Lol! In all seriousness, we all love you Mr O! Keep up the great work and great videos.
Great lesson Eric on OBD generic vs OEM data. As always great video and hang in there with the old smeller i got the COVID about a month ago and still have no smell or taste.
I hope someone comes up with a car I can replace mine with at some point. It isn't looking good, however. Great video!
man, super fun stuff here. Sure, it's an easy fix, but the big takeaway is how once you're pretty sure it's a sensor, you can PROVE it. Excellent diagnosis, i LOVE this stuff Eric O.
Eric, tricky one for me, enjoy the learning from you !!
I learn every video I watch of yours. In the past you have asked for feedback on the computer/electronics all I can say is keep it coming.
Interesting. I never thought about OEM data substituting that way. I always thing of it Subbing a real value to Global, for instance a car that has a AFR sensor, substituting O2 voltages to the Global Live data, not the other way around.
You know it's a Mopar when it needs to have a throttle light! Had a rental liberty and the throttle had a mind of its own. Glad this brand is good job security!
very true it uses value so the vehicle will run in limp mode to get you to a good mechanic hum hum sma
Thanks Eric for taking the time for the teachable moment! 👍
Value for money tip of the century right there Mr O.
Thanks man
Learned something
I’d assume that it works the same with O2s and MAFs
Putting this to memory
Sure does!
Thank ya for not leaving us hanging. Ya talked about the Jeep, ya showed us what ya had found.
Solid information on that OEM data issue. Always learning from you Mr.O
All those with oil cooler have leaks at the T in the top radiator hose.... Gates hose fixes it...
Eric I'm from the uk been a mechanic 29 years u are a top dog
The amount of electrical issues you chase down is amazing. You almost need to be an electrical engineer to work on cars these days. Thanks for an other video, Eric.
Thanks Eric O. Never really understood the benefit of using Generic. Good to know.
Hey Mr O, loving the extra videos these days !! Thank you .. love your Videos from N.Ireland !
Good to know thankyou.. He says never intending to spend serious money on any kind of OEM scan tool..:)
You da man!! Know matter what your wife says!! I tend to learn something every time I watch one of your videos. Thanks!! Stay safe my friend.👍🤓👍🤓Randy.
Great video! No questions, comments or concerns. Although, only 154 days until Demolition Day.
Have you ever seen substituted voltage values? I can see how it would substitute an interpretation, but substituting an actual voltage value would be another step toward confusing diagnostics.... In any case, it is too bad there isn't a flag to identify when a value is substituted.
Another guy just asked that and I thought about it for a bit and I don't think I have but I am going to pay attention now and see. Great question !
All the sensors on a vehicle with electronic engine management generate an analog signal (varying voltage). At the PCM (powertrain control module) the analog signal is converted to a digital value. Then logic within the PCM analyzes this digital value and determines if it makes sense when compared to other values (oil temperature, intake air temperature). If it does not then a value is substituted. So there would be no reason for the engine management logic to substitue a value for the analog signal. Just substitue on the converted value; analog to digital. And as Eric O has indicated a substituted value parameter is used to keep the engine running (if possible) and not leave the vehicle stranded and non-operational.
Unfortunately it looks like the flag is just using your noodle. 😅
I'd never thought of that, Thanks for a corrected direction and add smarts on the OBD and OEM information. NICE!!
Looks like the other shop just chose the first thing on the list. How did a technician think a bad thermostat would cause a gauge to read high temp when the motor was dead cold. I'm no tech, but as soon as Eric said the temp gauge goes up when the car is cold, my mind said temp sensor. Not having a bunch of fancy scanners, I would have just unplugged the sensor and looked to see if the gauge went back to zero.
Unfortunately because the temp gage is networked it likely won't read cold unplugged due to the open circuit. In most cases the gage will indicate an overheat condition as that would get your attention.
@@PhillipBailey Read again- I said when the temp gauge reads hot with a cold engine, the first thing that comes to mind is a sensor.
Been a fan for a few years now, always a good video
It amazes me that anyone with a reasonable knowledge of vehicles would throw a thermostat at this based on the symptoms.
Agreed, looks like someone pulled the codes, checked the service data, saw the first thing on the list that was a replacement part ( I think it was listed as the second possible fault), slapped it in, and called it done.
Some of the stuff Eric gets from "The Other Shop" is a bit of a tougher diagnosis but this was a bit pathetic. I mean if you're going to load up the parts cannon, with the faults described temp sensor should have been the first option!
Still like the video Eric! Love the way you work!
I'm surprised they let it roll out the door with the light still on instead of guessing the temp sensor next. These morons usually just keep buying parts until it's "fixed".
@@grannyflatgarage7599 The thermostat seems like a go to part for a lot of places, not sure if lazy or incompetent, but considering the temp shot up on a cold engine it makes no sense as a thermostat will never cause that symptom.
@@notavailable9919 true, makes me wonder a lot of the time whether "another shop" is actually "my mates driveway" haha
@@grannyflatgarage7599 Bingo!
Very interesting and guess what? I'm doing the thermostat/ect sensor on a 17 Cherokee 2.4 Multi-air tomorrow. PITA!!! Piece of sh!t Italian or is it German junk. That was some good information, thanks Eric
In VW/Audis this sensor is a dual one, measures twice the same coolant temp, one signal goes to dashpod and maybe ac and the other goes to ecm. Commonly one circuit breaks and drives mechanics and DIYers crazy, common failure for diagnosing cooling issues on a perfectly running engine.
Omg I used to have the 2.4 in a Sebring! I did not expect to see that thing in a jeep!😳
Hah! You are sponsoring NAPA the same way I sponsor your channel. I mention your channel to people every chance I get. Hang in there Eric.
I dislike substituted values too. Can be hard to distinguish between what’s real and what a computer making stuff up. Usually end up doing like you and second guessing things. So, end up looking for other values or checking things in a different way to see what makes sense.
And, at least with a lot of medium/heavy duty stuff there will be multiple things labeled as something similar on the data stream. Usually just ignore the ones that are wild unless there’s a code for them. I think it’s stuff that’s optional or just making room for possible future stuff in the programming.
Been watching this channel for so long now I know what's about to happen....
Been to another shop (check)
parts cannon (check)
bunch of strange codes and behavior (check)
Someone's been here before (check)
Go to the fridge to get a beer and Eric's got it diagnosed and fixed before I get back (check)
Another quality video from South Main auto
Thank you for explaining about generic vs OEM specific. Sometime would like to hear about why OEM uses substitute values and how substitute values can be helpful in diagnostics. Thanks
Great teacher , information straight to the point showing exactly why your reasoning is correct. Thanks Eric
Now peeps should know why Eric O should be well paid,he got a pretty good head on his shoulders.
You have so much talent when it comes to wrenching bolts and trouble shooting. I bought a 2004 F350 truck 10,000 dump and the ex owner tried to rewire the rear lights and cut them. I know you do not like to give advice however can you tell me where I can purchase a 2004 F350 wire manual for my truck. Thanks for any help.
Mitchell diy has it
In words from startrek!!! Coolest Vulcan sheet on the web ,,, Really good stuff🖖
Thought it was going to be a bad ground again but also learned something
Well crap! All I ever use is old OBD2 because all I have is old crap to work on.
Another great video! Well done. Wish you were around here(CO) and worked on VWs.😜
If I am not mistaken that engine has 2 thermostats, I wonder if both were changed. What I am getting at is if I were to change both I would have changed the whole housing as it is plastic and I think the OEM comes with the sensor. Had he done this the parts cannon would have worked.
Just something to think about.
Shoot…..never had that problem on my MG….ha…ha….good video Mr O as always
Thanks for the tip about the data substitution.
Excellent vid. I just went thru this with a 2017 Buick LaCrosse 3.6. Codes for t stat, fans come on and stay on, temp gauge bottomed out on C. Shop already put in a stat. OE scan data from the OTC showed 158* live data. Unplug the ETC and it showed -40. Jump the harness, and it showed 158*.. In generic, same scanner, it showed 240*, harness NOT jumped. The ETC had failed, and the t stat code was because the fans were always running on med speed, it couldn't warm up correctly. New ETC, clear codes, and then the gauge worked, no fans until 207*. I will say that I don't understand why the gauge showed C instead of H, but whatever.
Just a fun-fact for the day FYI, -40 F just happens to equal -40 C. That’s the only temps using those two temp scales that are the same.
212 F = 100 C
32 F = 0 C
-40 F = -40 C
hello Eric, let me explain what I have in mind regarding the minute (9:49) of this this video of yours and I don't know if I'm right. 1-. ($7E8 HEX is equal to 2024 decimal) this is the current temperature of the vehicle under scanning (228.2 ºF) 2-. so ($7E9 is 2025 decimal) 429ºF is the high side of the scale used by the CPU (and $06 mode) and the low side of the scale is (-40.00 ºF) In fact you can see this value on the scanner, inside the parentheses on the right site of the scanner screen, minute 9:49 this is the complete scale. Also, computers communicate by (HEX and 1's and 0’s) I repeat, I don't know if I'm okay. Greetings from Tijuana B.C, 🇲🇽 Mexico.
Seems that there are several checks that get fired before the ECM decides to show the real value. Like they decided to show a hardcoded value mid way their decision tree, not kosher. It might be showing what a mess of spaghetti code they have burned in their ECMs
So do the OEM scan tools offer a generic mode? If not, that may at least partially explain why dealerships seem so bad at fixing cars ;)
Some do yes. The older Chrysler scan tool does. The DRB III. Awesome tool.
Excellent Information Dr. 0
👍👍
cool video Eric...awesome teaching methods you have ..thank you !
And another informative video from the guru Mr. O
One day I would love a real scanner but for personal use my elchespo will have to do 👍🏻
Great job Mr O.
Have you heard anything about Chrysler 2018 and newer having to have a subsciption to read ecm/pcm information? My S-O dealer was telling me that you needed a $50 a year fee and scan tool needed wifi to work on them?
Yes with a security gateway module you have to sign up on Auto Auth webapp.autoauth.com/ or if you are using WiTech you have to sign into tech authority first
@@SouthMainAuto Thanks I appreciate the info👍
Seems like Ivan with Pine Hollow Auto Diagnostics just mentioned that in a video he made recently.
Rodger Daltrey from "The Who", Said, "I'll substitute you for my mom, at least I'll get my washing done........" 🤣🤣
Hey nice to see u again u saved my life my times good u doing well no let's watch
Well, maybe jeep is using the Kelvin scale for temp. 419 Kelvin = 294.4°F or 149°C.