Great video thank you for posting that. I would assume that after replacing a PCM even if it is pre-programmed, the vehicle would need a perimeter reset.
The body control module has the key code and hit that the PCM needs in order to start the vehicle. The perimeter reset basically syncs the PCM to the body control module for the key coding.
Eric, don’t think that we long-time viewers don’t notice that you’ve really stepped up your editing game lately, on top of your already stellar diagnostics methodology. Great work!
Great video. You are always so through in your diagnostic approach and explain it in a way that is easy to understand. This is one of my favorite diagnostic channels.
Excellent video. Ultimately had to replace the PCM in my 2008 Explorer Sport Trac. For dealer had the car, and they were unable to get a PCM from Atlanta, so I found one in Jacksonville, FL, and it too, came pre-programmed from the rebuilder. The dealer was surprised that I could find one, and they were happy to install it. Worked like a charm.
You did your job and were 100% correct. Don't apologize! Thank you for the update and the "tips and tricks" especially for using 12 volts through the test light at the VREF connections checking for shorts to ground.
Awesome info! I’m currently having an issue with my Ford Escape and NO ONE can tell me if it’s the PCM for sure. But you showed us what you need to check for and bam, found it was PCM. 4 shops later and still nothing 🤦🏻♀️
Dang I always see you fixing some crazy problems many me mechanics would run away from no doubt. Hope you charge accordingly, good work ain't cheap boss man.
It must feel great to realize you made the right call. Between your YT channel and word spreading around town about you, I think you'll always have a steady stream of appreciative customers. Great job 👍
Eric thanks for sharing . Video was extremely informative and I much appreciate how you walk us through the wiring schematics. Stay safe and well Artie 👍
Big thumbs up for your thought process and being confident in condemning the pcm. Also, thanks for your time to upload those amazing videos which I can say 100 percent very informative and educational.
17:44 a headlamp bulb drawing 15 amps is kinda off there. 15 amps @ 12v = 180 watts, regular headlamp bulb (499/477/H7) would be almost 4.6 amps @12v (55w) but yea I would totally be checking those main grounds with a high current test lamp especially if they carry the current to ground the injectors and/or ignition coils but if it's just a sensor ground then yes a low amp incandescent test light is suitable but each to their own, obviously everything else looked to a bad computer (which it was), I've been burnt by assuming a low amp test light (~200mA) lighting a ground before calling it good but under a 'normal running load' it was bad causing stalling but again in the video this was a KOEO no comm requiring very little draw
excellent job of taking us through your diagnotic strategy and performance. loved the explanation using the diagram and splicing in of text to indicate what you were going to do next. really like that you have not overloaded the engine bay with leads and other equipment (that can be distracting and confusing). conducive to understanding where leads go and and understanding ojo no manufaturer would agree with your tool with the pin test. did you forget your ase terminal test kit? ignore the typos
That's the same checks that I do great job showing 👏 just been about 10 months sense last 1 I checked was making sure I hadn't forgotten about anything like u said u can never be 100 % on knowing!!
Erick, great video as usual and I think you should be an instructor as you are very clear and concise when explaining your test procedures…very easy to follow👍
Great video! I like the idea of testing for shorts to ground in the reference circuits that way but I always got told never to do that because going from battery positive with a test light to a reference circuit could spike the module by putting 12 to a 5V outlet, I guess it all depends on the internal circuit board design really
So so SO useful! Running into same issues with my 2010 Edge and have been lost until I found this video. I am now subscribed and will be checking it all out. Thanks for the time and editing!
Never knew you were in the Houston area, how does one get ahold of you for diagnostic services? I'm a technician myself but every now and then at our shop we get stuck on an issue that needs the expertise of a true diagnostician as yourself.
I wish you all the best my brother, hopefully things have gotten better (I stumbled on your page and watched the ls460 flood nightmare, and the shop closing video). I have an ls460L, and was looking to buy another (LS460L or LX570). Thank you for all your help. Amazing work. God Bless.
I never heard of a test light until a few years ago and it is such a brilliant tool why do LED test lights exist when the other ones are so much better it would seem
Hey Eric, Great videos thank you Love watching the videos about how programming keys id like to get into this , what’s the best bet to get learning up key programming, other than watching all your videos which I do
Nice diag Eric, but question -- when you are testing for power on pins 5 & 6, you are providing the ground external to the PCM (basically just testing wire continuity at that point, which you COULD have done with connector disconnected.) Wouldn't it have been a more thorough test to look at voltage between pins 5 & 6 and PCM pins 1,2 & 4? I'm thinking there COULD be an interruption internal to the PCM between those pins.
In the BCM block diagram the PCM wake up is active high (pulled to 12VDC), and the representation is given as a "FET" which is very generic and the transistor symbol is even generic, neither IEEE symbol for a JFET or a MOSFET. Which is okay because in reality the part used will be a smart power high side driver, which is a very sophisticated part having more circuitry than just a FET, which will have ease of control from the Microcontroller but also output protection and diagnostics. The important point is there is not a single component like in the diagram, but a smart protected driver. If it was a FET like a P-Channel MOSFET which would work but is not protected, the terminals would be labeled Gate, Drain and Source. In modern PCM design you could have a protected 5VREF and still have CAN communication. So, the 5VREF could be shorted to ground, for example, but the CAN communication would still be able to function. The two functions, VREF and HSCAN are actually two separate systems, VREF is part of the analog section used in conjunction with SIGRTN, and HSCAN is part of the digital communication section. I think the PCM only needs IGN power to wake up normally. The BCM signal wake up is for keyless entry operational options (remote start) where the PCM wake up is needed in order to support the special function. Missing all three 5V references means that the engine module power supply is not working. But, what is strange is the PCM power relay is activated. So, this must mean that this relay control is outside of the Microcontroller strategy. Which makes sense in that the relay is controlled by IGN or Wake Up. For the 5VREF short to ground test you could use the newer Power Probe with the 5V load test adaptor, or you could use a current limited regulated power supply set to 5V DC at a current limit at 1 Amp which is better than a test light to 12V. It is better because the test is within the normal voltage level of 5V DC.
Great but how much risk for frying something in the PCM is there from applying 12v to 5vref?? Any rules about when you would/wouldn't do it?? Cheers, and keep 'em coming.
Nice as usual Eric when everything else fails they call the Boss. Question, pulling the reference to 12V with the test light wouldnt hurt other things connected to that line ?. I know is current limited with a bulb, still think that you pull from a 5V source so you will never exceed the reference.
@@ADVANCEDLEVELAUTO it would have been interesting to put a 5v external reference into the system. Just to see what the pcm would do... maybe next time. Great video as always. Thank you.
@@davidhall3747 it's an output voltage when the driver inside the pcm is working. In this case most probably the driver is dead. If you insert a 5v in the system the modules inside the pcm should start to work (get the readings they need from sensors). Scanner Danner has some excellent videos about how the 5v ref system works. Check them out. Cheers.
@@alexdragomirescu5084 I know what you mean. I informed Scanner Danner about the Power Probe accessory that steps down the Battery 12 volts to 5 volts for diagnostic purposes. He wasn't aware of the Power Probe accessory at the time I notified him. That was about two years ago. I learned a lot from Paul Danner over the years. I'm a Fleet mechanic of Asian, Domestic, & European Cars/ Trucks.
did you double check to make sure that none of the 5volt ref sensors were shorted? I know it worked out but I never saw that step. I might have missed that.
LoadTesting: Nice verification test. Question? Why didn't you use the 'load pro'? When testing load on a circuit: Do you think a test light is better than the 'load pro'?
Hey I did a front end frame swap on a f-150 as well. After connecting all the cabin wires and everything else it started on the first try. I’m however now getting lost communication with BCM, PCM, RCM messages. Do you have any idea of why this could be or if you encountered these codes with your trucks before? Thanks let me know. I love your videos!
Just now coming across this video. I’m stumped on this 2014 ford edge. No crank no start but also no codes. Checked the entire ignition system. Any ideas?
I like your videos they are very informative. I also live in Houston and would like to talk to you about diagnosing an issue on my 2015 silverado, how can I get ahold of you locally?
I wish I knew how to repair them. That's way out of my league! Besides I think most customers prefer to buy something repaired that comes with a warranty. Thanks for watching!
Hola primo . Bonito vídeo como siempre. Apenas lo volví a ver ya lo voy viendo 2 ves es el mismo video lástima que no le puedo dar mas like solo una vez se puede 😂
Great video thank you for posting that. I would assume that after replacing a PCM even if it is pre-programmed, the vehicle would need a perimeter reset.
That is correct. I forgot to mention this. The shop had a capable scan tool for that.
What is a perimeter reset?
The body control module has the key code and hit that the PCM needs in order to start the vehicle. The perimeter reset basically syncs the PCM to the body control module for the key coding.
@@josephgronkiewicz328 Is it "perimeter reset" or "parameter reset"? Thanks again!
Muy bien gayo eres una chingonada...
Veo tus videos desde SLP mexico ...
Hope you can read that ... I know u can ...
Y dale pa'elante pa!
Dude you explain things better than any other RUclipsr or teacher. Thanks for taking the time to share your knowledge.
I was in this repair business for 28 years and I can see that you really have a grasp on what you are doing, BRAVO!
You don't have to apologize. We appreciate your work to video these diags. Love your detail in all this, we learn much from this.
Man those videos never get old, if that's not something you deal everyday you forget... So watching those just keeps you in the loop
Eric, don’t think that we long-time viewers don’t notice that you’ve really stepped up your editing game lately, on top of your already stellar diagnostics methodology. Great work!
Great video. You are always so through in your diagnostic approach and explain it in a way that is easy to understand. This is one of my favorite diagnostic channels.
Excellent video. Ultimately had to replace the PCM in my 2008 Explorer Sport Trac. For dealer had the car, and they were unable to get a PCM from Atlanta, so I found one in Jacksonville, FL, and it too, came pre-programmed from the rebuilder. The dealer was surprised that I could find one, and they were happy to install it. Worked like a charm.
DEAR SIR,
YOUR EXPLAINATION IS THE MOST IMPRESSIVE LOGICAL ANALYSIS, WHICH IS VERY HELPFUL AS EVER. THANKS A MILLION FOR YOUR EFFORT.
Thanks for COACHING us with such dedication !! The passion is evident in everything you do !!
Outstanding diagnostic walkthrough. It's something special watching a pro do their job well.
Gets me everytime: “I’ve got the keys right here in my hand. . . “
Eric, says that on every lesson. 😂👍🏾
Old habbits are hard to break 😂
You did your job and were 100% correct. Don't apologize! Thank you for the update and the "tips and tricks" especially for using 12 volts through the test light at the VREF connections checking for shorts to ground.
Awesome info! I’m currently having an issue with my Ford Escape and NO ONE can tell me if it’s the PCM for sure. But you showed us what you need to check for and bam, found it was PCM. 4 shops later and still nothing 🤦🏻♀️
Dang I always see you fixing some crazy problems many me mechanics would run away from no doubt. Hope you charge accordingly, good work ain't cheap boss man.
It must feel great to realize you made the right call.
Between your YT channel and word spreading around town about you, I think you'll always have a steady stream of appreciative customers.
Great job 👍
Eric thanks for sharing . Video was extremely informative and I much appreciate how you walk us through the wiring schematics. Stay safe and well Artie 👍
No apologies needed . I'm grateful for the knowledge you share. Thanks
Excellent communication about your thought process. You're really thorough. Thanks for posting.
Great work Eric, that was a lot of wire's and ground checking. Thanks
Always useful and entertaining content on this channel! Thanks for taking the time to educate us Eric!
Continually 100% amazed at your expertise ! I know it takes years to get where you are with your skills.👍👍 sad there’s no one in Amarillo like you.
Big thumbs up for your thought process and being confident in condemning the pcm. Also, thanks for your time to upload those amazing videos which I can say 100 percent very informative and educational.
One of the most informative videos out there. EXCELLENT!
Screw these new vehicles. I'm going South and find me a good old 1970s or earlier 80s. Thanks for the video anyway.
Don't need to apologize. Troubleshooting customers cars is the most important thing.
17:44 a headlamp bulb drawing 15 amps is kinda off there. 15 amps @ 12v = 180 watts, regular headlamp bulb (499/477/H7) would be almost 4.6 amps @12v (55w) but yea I would totally be checking those main grounds with a high current test lamp especially if they carry the current to ground the injectors and/or ignition coils but if it's just a sensor ground then yes a low amp incandescent test light is suitable but each to their own, obviously everything else looked to a bad computer (which it was), I've been burnt by assuming a low amp test light (~200mA) lighting a ground before calling it good but under a 'normal running load' it was bad causing stalling but again in the video this was a KOEO no comm requiring very little draw
Thank you for the step by step diagnosis with explanation..
excellent job of taking us through your diagnotic strategy and performance. loved the explanation using the diagram and splicing in of text to indicate what you were going to do next. really like that you have not overloaded the engine bay with leads and other equipment (that can be distracting and confusing). conducive to understanding where leads go and and understanding
ojo no manufaturer would agree with your tool with the pin test. did you forget your ase terminal test kit? ignore the typos
That's the same checks that I do great job showing 👏 just been about 10 months sense last 1 I checked was making sure I hadn't forgotten about anything like u said u can never be 100 % on knowing!!
Erick, great video as usual and I think you should be an instructor as you are very clear and concise when explaining your test procedures…very easy to follow👍
Thank you for helping me to understand Automotive😊🥰
ispr. Remember that. And now I have to rewatch part of the video.
Excellent as always.
Yes. I will remeber this this acronym the next time I see it. Thanks for watching!
Terrific video and diagnosis. Thank you.
Always thanks Eric ... Always we thank you brother.
Great job! I just needed the location on the ecm, and I got stuck for the whole video…
Great video! I like the idea of testing for shorts to ground in the reference circuits that way but I always got told never to do that because going from battery positive with a test light to a reference circuit could spike the module by putting 12 to a 5V outlet, I guess it all depends on the internal circuit board design really
rt here in kenya your channel is the best learning platform
So so SO useful! Running into same issues with my 2010 Edge and have been lost until I found this video.
I am now subscribed and will be checking it all out. Thanks for the time and editing!
Great as always thanks for shearing your information
Thank you for sharing. Good diagnostics.
Never knew you were in the Houston area, how does one get ahold of you for diagnostic services? I'm a technician myself but every now and then at our shop we get stuck on an issue that needs the expertise of a true diagnostician as yourself.
Eric, great video ! Thanks for sharing.
I wish you all the best my brother, hopefully things have gotten better (I stumbled on your page and watched the ls460 flood nightmare, and the shop closing video). I have an ls460L, and was looking to buy another (LS460L or LX570). Thank you for all your help. Amazing work. God Bless.
Well done nice work with the snap on scope its one of my favorites
Godlike diagnostics right here!
Always a pleasure seeing you Eric no matter how long we wait! It's worth waiting for!
Thanks for your teaching and be blessed in Jesus Christ 🙏
I never heard of a test light until a few years ago and it is such a brilliant tool why do LED test lights exist when the other ones are so much better it would seem
Thank you…. The 5v short sensor to ground test that is a good test…. Thank you
Wonder if the shop somehow let the smoke out of the magic box during transmission replacement...
Thank you for the videos you make I Learn a lot from it God bless you 🇬🇭
Thanks as usual for the great video. How much is a new or remanufactured PCM in this truck ? Eric's time is also money :)
very informative , thanks Eric
Hey Eric,
Great videos thank you
Love watching the videos about how programming keys id like to get into this , what’s the best bet to get learning up key programming, other than watching all your videos which I do
Outstanding tutorial! Is there a scan tool like you were using that you could recommend for diyer’s that won’t break the bank?
Very smart man keep up the great work Eric.Love watching your videos,I see you don't do no bmw's they're are one of the worst car ever.I'm just saying
Nice diag Eric, but question -- when you are testing for power on pins 5 & 6, you are providing the ground external to the PCM (basically just testing wire continuity at that point, which you COULD have done with connector disconnected.) Wouldn't it have been a more thorough test to look at voltage between pins 5 & 6 and PCM pins 1,2 & 4? I'm thinking there COULD be an interruption internal to the PCM between those pins.
Nice informative video as usual.
I wish more and more videos from you.
I never knew Ford Edge came with the EcoBoost engines. All I've seen until this are the Duratec ones.
Appreciated everything you do for us thanks .,nothing to apologize I'm simptly grateful to you.
Wow! What an education!
Hi from dubai. Thanks for great information videos
Just discovered your channel with this video. Awesome work! Everything was so well explained. Will be watching more.
Watching from DXB. Excellent flow of info.
In the BCM block diagram the PCM wake up is active high (pulled to 12VDC), and the representation is given as a "FET" which is very generic and the transistor symbol is even generic, neither IEEE symbol for a JFET or a MOSFET. Which is okay because in reality the part used will be a smart power high side driver, which is a very sophisticated part having more circuitry than just a FET, which will have ease of control from the Microcontroller but also output protection and diagnostics. The important point is there is not a single component like in the diagram, but a smart protected driver. If it was a FET like a P-Channel MOSFET which would work but is not protected, the terminals would be labeled Gate, Drain and Source.
In modern PCM design you could have a protected 5VREF and still have CAN communication. So, the 5VREF could be shorted to ground, for example, but the CAN communication would still be able to function. The two functions, VREF and HSCAN are actually two separate systems, VREF is part of the analog section used in conjunction with SIGRTN, and HSCAN is part of the digital communication section.
I think the PCM only needs IGN power to wake up normally. The BCM signal wake up is for keyless entry operational options (remote start) where the PCM wake up is needed in order to support the special function.
Missing all three 5V references means that the engine module power supply is not working. But, what is strange is the PCM power relay is activated. So, this must mean that this relay control is outside of the Microcontroller strategy. Which makes sense in that the relay is controlled by IGN or Wake Up.
For the 5VREF short to ground test you could use the newer Power Probe with the 5V load test adaptor, or you could use a current limited regulated power supply set to 5V DC at a current limit at 1 Amp which is better than a test light to 12V. It is better because the test is within the normal voltage level of 5V DC.
Great Vid. Súper demostration 👍🏻👍🏻
You are too good man thank you for your time and help to us
Great video 👍 very very good explanation thank you so much for your efforts 😊😊
This guy gets 10 stars
Intresting vedio thank you ,why you dont open pcm and chek 3 wier 5volt refrenc and change the power suplly?
Great video by the way, you broke it down very well. Thank you for sharing.
Master in action
What is it
That was good diagnosing
I know I'm way late on this but another great video thank you
Thank you for your knowledge 🙏...
Eric, can you do a video explaining long term and short term fuel diagnoses.
Great vids watching from NEW ZEALAND
Great but how much risk for frying something in the PCM is there from applying 12v to 5vref?? Any rules about when you would/wouldn't do it?? Cheers, and keep 'em coming.
Paul Danner said there is no risk. He is a instructor.
Great video. No need to apologize.
Is there a fuse inside the ECM? You are truly a great mechanic ...
No, all fuses are external.
Thanks brother. You are a consumate pro.
Great video, you kept calling it a truck, it's not a truck
Nice as usual Eric when everything else fails they call the Boss. Question, pulling the reference to 12V with the test light wouldnt hurt other things connected to that line ?. I know is current limited with a bulb, still think that you pull from a 5V source so you will never exceed the reference.
I've seen 5 volt ref circuits shorted to battery power and they seem to work fine after resolving the issue. Thanks for watching!
@@ADVANCEDLEVELAUTO it would have been interesting to put a 5v external reference into the system. Just to see what the pcm would do... maybe next time. Great video as always. Thank you.
@@alexdragomirescu5084 The Five volt ref is an Output signal.
@@davidhall3747 it's an output voltage when the driver inside the pcm is working. In this case most probably the driver is dead. If you insert a 5v in the system the modules inside the pcm should start to work (get the readings they need from sensors). Scanner Danner has some excellent videos about how the 5v ref system works. Check them out. Cheers.
@@alexdragomirescu5084 I know what you mean. I informed Scanner Danner about the Power Probe accessory that steps down the Battery 12 volts to 5 volts for diagnostic purposes. He wasn't aware of the Power Probe accessory at the time I notified him. That was about two years ago. I learned a lot from Paul Danner over the years. I'm a Fleet mechanic of Asian, Domestic, & European Cars/ Trucks.
did you double check to make sure that none of the 5volt ref sensors were shorted? I know it worked out but I never saw that step. I might have missed that.
25:00
What’s papa where can I get the wiring diagrams?
LoadTesting: Nice verification test. Question? Why didn't you use the 'load pro'? When testing load on a circuit: Do you think a test light is better than the 'load pro'?
great video quality is better than quantity nice job very thorough😁
Hey I did a front end frame swap on a f-150 as well. After connecting all the cabin wires and everything else it started on the first try. I’m however now getting lost communication with BCM, PCM, RCM messages. Do you have any idea of why this could be or if you encountered these codes with your trucks before? Thanks let me know. I love your videos!
Good job thanks for the information
Wow! Very informative. Thanks!
Awesome troubleshooting!!
nice Work man..like you always do👍
About testing sensor integrity, is you use a voltmeter instead of Power Probe is the same thing!?
Just now coming across this video. I’m stumped on this 2014 ford edge. No crank no start but also no codes. Checked the entire ignition system. Any ideas?
How do I get in contact with you for mechanic work?
I like your videos they are very informative. I also live in Houston and would like to talk to you about diagnosing an issue on my 2015 silverado, how can I get ahold of you locally?
The saddest part is that th IC that fails inside the pcm is probably no more that 20 dollars
I wish I knew how to repair them. That's way out of my league! Besides I think most customers prefer to buy something repaired that comes with a warranty. Thanks for watching!
Hola primo .
Bonito vídeo como siempre.
Apenas lo volví a ver ya lo voy viendo 2 ves es el mismo video lástima que no le puedo dar mas like solo una vez se puede 😂
great Video and very outstanding. ...