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In this video I bring you along as I finish a diagnosis and repair on this 2005 Ford Focus. I replace a PCM that I diagnosed earlier this summer with a used one and I show how you can relearn the PATS keys using the Autel MS908 to fix codes U1900 and P1601. We also have a look at what is going on with the SRS light.
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50 thoughts on “Ford used ecm replacement / can issues / no com. code u1900 p1601”
  1. Avataaar/Circle Created with python_avatars Andy Schuldt says:

    Awesome video. Many thx for helping the “little guy”

  2. Avataaar/Circle Created with python_avatars Lubin Petit says:

    Did this only work because the pcm controls PATS function or it's in the cluster?

  3. Avataaar/Circle Created with python_avatars brian Peterson says:

    Seems like you use alltell quit a bit .should i invest or keeo paying snappy ?lol .oh ya love your videos finnaly showing America what we due awsome

  4. Avataaar/Circle Created with python_avatars Donald Desnoo says:

    They probably can repair orig module for insp. It probably has internal fuse or diode that shorts . worked on TV's similar when excess voltage or polarity reversed blows up ic s

  5. Avataaar/Circle Created with python_avatars Doug Kelley says:

    Eric i have no access to comments on newer videos and I don't know why.

  6. Avataaar/Circle Created with python_avatars Pinkie Love says:

    different seat maybe, maybe from different trim of car And yes I type this before finishing watching you video

  7. Avataaar/Circle Created with python_avatars Margarito Hernandez says:

    Good job man

  8. Avataaar/Circle Created with python_avatars Emanuel Cecena says:

    Congrats you've maded Sach a Great video so Helpful. Thanks

  9. Avataaar/Circle Created with python_avatars Justin S says:

    What on earth is a pretensioner

  10. Avataaar/Circle Created with python_avatars Carl McCartney says:

    What do you think possibly when going into PATS to reprogram keys would make Autel Maxidas give a fault issue and have red bar across rather than going through the ten minutes with a climbing blue bar?

  11. Avataaar/Circle Created with python_avatars Antonio Claudio Michael says:

    Fords Pat Systems Are So Annoying But they do work Very well Reprogramming can be a pain For Ford Security Modules Eric O especially Around the Late 90s to early 2000 model years even the modern 2015 plus can be a pain.. @SouthMainAutoRepairLLC

  12. Avataaar/Circle Created with python_avatars Lawrence Totman says:

    With your Autel, were you using the J2534 ?
    FYI- love your videos and thank you.

  13. Avataaar/Circle Created with python_avatars Jose A Rodriguez says:

    Have you done a 2004 f150 with the same issue?

  14. Avataaar/Circle Created with python_avatars Bear's Sh*t says:

    For folks reading the comments, I programmed PATS on a 2013 Mustang GT with an Autel MP808. Worked like a charm!

  15. Avataaar/Circle Created with python_avatars SyntheticNation says:

    Bro i hate any electrical stuff but this man makes me actually want to learn it seems so interesting knowing there is always a way out i thought this type of stuff was a headache !

  16. Avataaar/Circle Created with python_avatars Jason Etheredge says:

    $20 for the new key!!! The FORD dealership in Palm Coast Fl. charged me $300 for a new key and programing!

  17. Avataaar/Circle Created with python_avatars crazy edo says:

    I don't want to be the guy who reversed the battery😰

  18. Avataaar/Circle Created with python_avatars nonya biz says:

    So many mystery’s salved you will need a OZ of Scooby snacks.

  19. Avataaar/Circle Created with python_avatars jinxxpwnage says:

    Man i remember my father used to have a chrysler sebring that Every time you did a turn it would do this weird pull or chug on the transmission. He took it to 5 mechanics and no one knew what to do. Makes you wonder sometimes

  20. Avataaar/Circle Created with python_avatars Ralph Woodruff says:

    Another great video. I understand the chase for the pretensioner on Fords. I chased a simular issue to find out again the pretensioner was inside the b pillar. Great satisfaction when found but it did take a service manual check to verify the issue. Scan tools definately help with diagnosis ( more like required) to really get a good picture of faults. I love the real time data features. Very informative but it does take some time to figure out where everything is and how to use them well. Thanks again, I really do appreciate your videos.

  21. Avataaar/Circle Created with python_avatars Hola! Steady Eddie says:

    I was following your troubleshooting until about half way through when my eyes rolled back into my head! I was wondering… Didn't you replace therestraint control module also, with a used one? If so, how did you get it to work with no fault codes without programming the used RCM to this car? Or did I miss something? In any case, thanks for another great video.

  22. Avataaar/Circle Created with python_avatars Josh Ford says:

    2008 Ford focus no crank no start and the car will start n other times it will show security lift n do nothing no blank screen on OD but other lights are indeed on with a blocking security lock car light. I have did the 10 min reset and it goes off untill you try to start it again. I am used to messing with GM stuff so I am at a loss any ideas

  23. Avataaar/Circle Created with python_avatars Move Along says:

    B1342

  24. Avataaar/Circle Created with python_avatars Tracy Ogden says:

    Been out of repair for over 10 years,Hate it come to this peeps just keep buying new products instead of taking car of their car and trucks

  25. Avataaar/Circle Created with python_avatars Beepee Fromabove says:

    Never knew programming new keys was so easy and fast.

  26. Avataaar/Circle Created with python_avatars AJ W says:

    Got a 2007 mustang with dash cluster not working. Engine does start and drive but nothing inside the car but the radio. Evern the computer hookup won't work. No com. Replacesed the PCM with a used one and all lights and cluster work inside the car but car won't start. Vin needs to be changed on the replacement PCM? Is there a way to do this out of the car?

  27. Avataaar/Circle Created with python_avatars buzz1973 says:

    Great video 👍🏻

  28. Avataaar/Circle Created with python_avatars Robert Fitzgerald says:

    I owned one of these, but a 2004 w/ a Ford Zetec (Mazda) engine with automatic trans and it was a rocket-ship. Through the years it ate drive line bushings… I don't beleive the drive line structure was designed for the torque of this specific perfomance engine. The engine took root in the high-end Focus cars/wagons after serious valve retainer issues came-up on the 2002 Ford 2.3?, this engine was replaced in production w/Mazda 2.1 16V (Ford Zetec). This Zetec Engine had a red-line of about 7800 RPM. Never once beaten by any car road or highway.. just unlimited power. Only problem with the Zetec other than it's supreme torque was the plastic rocker-cover when synthetic oil was used — it leaked like hell!

  29. Avataaar/Circle Created with python_avatars damian farnsworth says:

    I'm curious why he didn't notice the issue when the cables wouldn't just go on due to the intentional difference of post size. If was a GM I could understand but a top post? lol

  30. Avataaar/Circle Created with python_avatars Tra Thorton says:

    HELP!!!!! NO CRANK….2014 Ford Escape SE w/ 1.6 Eco-boost
    The car was in a front in collision, and the ECM ( and wiring pigtails) were damaged. So I spliced in (soldered) replacement pigtails that I bought at junkyard. Also plugged in the replacement ECM from junkyard. But now the car won't crank/start.
    Please point me in the right direction of how to troubleshoot the issue?

  31. Avataaar/Circle Created with python_avatars Lars H. says:

    Good job, impressive!

  32. Avataaar/Circle Created with python_avatars 4thdemz says:

    YEAH YEAH your the man just swipped wave at the camera and we all tune in lol

  33. Avataaar/Circle Created with python_avatars Aju Koshy says:

    Keys are old used one or new keys?

  34. Avataaar/Circle Created with python_avatars automotive tech-vet says:

    Just unsolder the processor out of the old pcm , problem solved 👍👌

  35. Avataaar/Circle Created with python_avatars brembojoe says:

    Great video keep it up

  36. Avataaar/Circle Created with python_avatars martin warner says:

    You are good. Love the video, but, what did it cost him?

  37. Avataaar/Circle Created with python_avatars ronnie massart says:

    What does a Autel cost

  38. Avataaar/Circle Created with python_avatars Sean McKinnon says:

    Cant you download the Ford software and pay for a single day license if you dont have a fancy scan tool? Of course you will need a usb to obd 2 converter but that’s how I’ve programmed new Ecm’s in the past including keys and vin.

  39. Avataaar/Circle Created with python_avatars Griff the Drummer says:

    Great work, man. What I like about your work is that you not only try to fix things right, but you also make note of things that are not right along the way . Very cool…

  40. Avataaar/Circle Created with python_avatars Vencent Bauer says:

    u cant program the pcm with your bosh ????

  41. Avataaar/Circle Created with python_avatars daddyphatsax304 says:

    Haha…I diagnosed and did a pcm swap on one of these once that was struck by lightning. Sizzled the pcm…there was a clear lightning strike burn mark just above ds window. Iirc they were in it when it happened and it left them stranded.

  42. Avataaar/Circle Created with python_avatars Turn and Burn TECH says:

    With the AUTEL MAXISYS SCAN TOOL, and the j2534, Can you program the pcm or ecm module with just those 2 devices? OR DO YOU NEED TO USE A LAPTOP AND SUBSCRIPTION SERVICES. IF YOU CAN, PLEASE DO A VIDEO BECAUSE I AM NEW TO AUTEL SCAN TOOLS, IAM VERY INTERESTED IN PROGRAMMING MODULES, DOING MORE WITH THE AUTEL MAXISYS ELITE. THANK YOU

  43. Avataaar/Circle Created with python_avatars Donovan Veldsman says:

    hi i need help and fast i have a smart car forfour and nno key i have watched your vid on transponder key by pass w
    how do i do the same on my car and witch of the for wires do i put my resistor on please help

  44. Avataaar/Circle Created with python_avatars Eluder Racing says:

    I am having a similar issue as this video. I have a 2002 ford lightning I had a aftermarket stereo installed at what was supposed to be a good shop. long story short when they where installing my new head unit they removed the cluster to gain more access to run wires modify dash etc… when there tried to unplug the cluster it was stuck 18 year old vehicle go figure. continued to yank on the wires broke the plug portion of the cluster. cluster was junk they purchased a used cluster installed it told me my truck was done stereo looks and sounds great but hey for some reason my truck won't start. security blinking on dash no crank no start etc. buddy has a snap on scanner tells me a pats issue is present does the relearning and gets truck started I jump in the truck look at my dash it says my truck has 192k miles!!!!!!!!! wtf. make a call to stereo shop ask what is going on owner gets on phone tells me about issue and says he bought a junk yard cluster!!! call dealer they say they can't help me almost make me feel like im trying to get something over on them. what are my options this is a show truck had 68k miles truck is worth a lot of money I need some help

  45. Avataaar/Circle Created with python_avatars Robert Young says:

    can I ask a question please if the pcm is changed does the mileage on the instrument cluster display the junkyard pcm recorded mileage not the original

  46. Avataaar/Circle Created with python_avatars ira lee Martin jr. says:

    Good trouble shooting. Cars now days are as complicated as the TVs I used to trouble shoot.

  47. Avataaar/Circle Created with python_avatars Shane Harrison says:

    New zip ties and 2 new keys