Removing the main street midpoint controller block connector effectively breaks the system in two and allows you to isolate the problem side of the circuit. These were the Engine ECU, TCM ( Transmission ) and the ABS module. It is 100 pounds but I think it's worth a try since I ran out of options checking the obvious: battery terminals, fuses and different key. Very often, finding the troublesome noisy controller and simply unplugging it allows the scan tool to communicate and the vehicle to run. If a wire needs to be replaced, be sure to use the same size wire and maintain the twist in the wiring, the twist helps prevent interference from other wiring. See the diagram above. Controllers are like black boxes. If all controllers talk at once, messages are lost. If failure happens while attempting to start the vehicle then it will prevent the engine from starting. In a workshop. Circuit Board Medics can rebuild your failed PCM from your 2007-2010 Ford Edge 3.5L V6 engine.No programming required after repair! With the battery disconnected and the voltmeter set to Ohms. : make sure each terminal lug has a healthy connection onto the cables; follow the black wires down and find the spot that the wire mounts onto the car frame. Display as a link instead, For this test, well do what I said was rarely a good idea. Being that the vehicle can run and die at any time, even if it starts back up after getting this code, we recommend having a mechanic look at it before driving it again. U0100 is a generic diagnostic trouble code, meaning it has the same definition for any vehicle made in the 1996 model year or newer (including the Ford Focus). Before you start chasing the wiring issues. Share | Add to Watchlist. Thank you for your time! This one had linking error. A visual test comes first. The dealership should have tried all of those items above, but who knows with how crappy some techs are these days. Hello Guys, stuck in a weird situation. The diagram, at left, reveals a problem with the network. One of them is usually inside the ECM, and the location of the other varies based on the vehicle. Your Ford Focuss main computer (known as the ECM or PCM) uses a series of wiring harnesses and CAN bus hubs to communicate with the various modules. That is RIDICULOUS, Cheryl. Clean the battery terminals and other connections too: make sure each terminal lug has a healthy connection onto the cables; follow the black wires down and find the spot that the wire mounts onto the car frame. You can disconnect the connector at the module as a test. Copyright 2023 DB Vehicle Electrics | All Rights Reserved. This ECU is a common failureespeciallyfor the Ford Focus 1.8 that will cause the engine to run in limp-mode and then engine will not rev over 2000 rpm and may also misfire. I had a short list of minor items that I wanted looked at. Another handy thing to remember is that newer Ford vehicles are often equipped with more than one network, the second being the ISO 9141 protocol. zr. Going to put new batteries in and see what happens . Turned out to be a vehicle speed sensor. Then mechanic told he cannot connect to ECU. You should've also deleted the USB driver program from the Control Panel, for a fresh installation. $55.00 . A battery with min 12.5 volts should be maintained. Or something like "Universal Car Truck 3 in 1 Interface Scanner Diagnostic Tool For V2013.03 CDP+ " that is arround 50 pounds is needed? Ford ECM/ECU/ PCM family numbers available: DPC-202DPC-203DPC-311DPC-312. Thats important to know for later when well be testing circuit resistance. You also have the option to opt-out of these cookies. We found the can-bus was a lot more consistant on the scope. Save my name, email, and website in this browser for the next time I comment. We dont know whats going on inside them, and we dont really care. Clear editor. Also noticed cranking voltage dropped to 8.7v which won't allow idm to fire injectors. Im aRed Seal-qualified Auto Service Technician with over twenty-fiveyears experience working on Classic and Modern Cars. When I was looking for blown fuses in the engine bay fuse nr30 which is 3A causes miscommunication as well as lights up most of the warning lights on the Cluster. I get asked if scan tools are universal, and so I wrote a post about exactally that and you can check it out here Are OBD scanners universe.. I never did the cable re adjustment when I installed my shift plate and curious if it could really cause an issue. The information is processed by the EBM, and action is taken according to its software parameters. These cookies will be stored in your browser only with your consent. Free shipping . . Ford installs OEM controls for ECU modules in Focus cars. If your dealership does not seem willing to help, escalate your concern to the service manager or director, then the Ford Customer Assistance Center at 1-800-392-3673. If you dont have the VIN handy, click the vehicle tab, and you can search by year, model, and manufacturer. Thank you Guys!!! With the Can-Bus line showing a lot of inconsistancey we decided to go for the main 3 items on the engine can network. There isnt a whole lot that someone who hasnt dealt with a code like this before can do. Paste as plain text instead, Many controllers that are fitted under the hood are pretty durable and can withstand moisture, but controllers fitted inside the cabin arent built to withstand moisture since they arent expected to get wet. Non start no crank, pats light flashing code 16 no comms. Im passing it on. This is a simple voltage check using a voltmeter and fine probes. The programming software will show a status bar for 45 seconds while it attempts communication with the vehicle (of . There are 16 pins. If, however, your scan tool wont even power up when you hook it up, then check out this post, OBD scanner wont turn on it covers the simple fix in detail. The commonly failing ABS module will cause a persistent ABS light, a constantly running motor, and the stored fault code Failure of the Ford Ranger ABS pump and module will result in a continuous ABS light, and the stored fault codes for C1095 - Pump Motor Circuit Failure, and 01276 - ABS Hydraulic Pump Fault Failure of the Ford Transit (Mk6) dashboard instrument cluster will cause loss of gauges, backlights and LCD screen functionality. There is no need to re-code or reprogram your instrument cluster once you receive it back, just plug in and away you go. ECU ECM No Communication FREE fix!! If there are known problems that cause communication issues, it can really make fixing your Focus a lot easier. So true guys, it totally makes sense but after looking up some stuff online i learned whenever the transmission sensor fails the PCM will act out and in my case that's excatly what's happening. If the instrument cluster fails while driving, then this will often cause the engine to cut out. But still no communication with the ECU. Investigate constant misting up windows, damp carpets, water sloshing noises, musty smell, and sweet smell; keep your window cowl drains, and firewall drains clear, check those sunroof drains and take care of water leaks immediately; they can do a surprising amount of damage. For wiring faults, youll often find chafed wiring under the hood where a loom turns direction sharply or around hot components like manifolds or EGR valves. With the voltmeter set to volts. Once received we will test, rebuild and return your instrument cluster with an unlimited mileage lifetime warranty. Like i said i couldn't think of anything else that could've went wrong. My question is this, do I need a special cable to program Instrument Cluster to a car if I get one second hand? Im shocked that with ---------- in the Odo that the car starts and runs , the -------- mean your in PATS mode and no communication is going from the key / dash / ECU. If your scan tool can access fault codes and the only one you retrieve from other modules is the U0131, try to access the PSCM module. Lots of communication codes within the vehicles ECU. However, they do it at lightning speed. I have now ECU and instrumental cluster connected,from other focus.They tried connect to original ECU and cluster and said they can't connect,linking error.So they change ecu,cluster and same,could't connect. You can disconnect the connector at the module as a test. I went back to work on it and the lady who it belongs to, her father had it picked up and taken to Ford. Alex.S Tony Ratcliffe A wiring diagram will be needed for some of these tests as to how the CAN network is wired will predict some of the readings we should expect. (Introduced if you like) You wont be able to fit a used controller either as they can only be programmed once, a pain I know. So they told her it was all 8 injectors and it ran. Or check out the Amazon auto repair tools link below. The problem turned out to be a shorted EBP sensor. See more 2008 Ford Focus Communication Control 8L2T14D2. Ford Focus 2008 / 2010 SRS Control Module ECU & WARRANTY - 1145695. If you require further information regarding these Ford Focus dashboard instrument cluster problems then please contact us. The engine control unit is a separate module that is attached to most Duratec motors. Kieranfordguy Ford no communication with pcm. LW16-11 OEM 2008 2009 FOCUS EXPLORER TAURUS . Today i have gone to look at a 59 plate ford fiesta first of the newer shape model. Upon receiving the new PCM they performed the latest flash. 29.95. Well, front probe the pins and compare tension. Stock ECU Programmed When Ford Motor . These are on sale used here every day. Ford Focus 2006 / 2007 with the rare automatic transmission. The instrument cluster needs programming regardless new or 2nd hand . Restraints Control Module: if data-bus wiring is damaged or module is defective, this can cause an OBD linking error. Common clutch actuator fault for the Ford Fiesta Durashift will cause the gearbox to stick in gear and prevent engine start have common problems with misfire on two cylinders and complete non start due to lack of ignition output to the coils. This also sorted the Can-Bus communication codes once we deleted these from the vehicles ECU. Most controllers are wired in series, with sub-controllers (Side streets off the main street); knowing which module is on main street and which is a side street is crucial to efficient resistance testing. Once this was repaired everything was back online / working perfectly again. Many a good tech has been caught out by jumping the gun and calling a perfectly good controller faulty, only to find the problem is still present with a shiny new spendy one installed. Ok I bought an OBD2 breakout box to test the dlc connector values. We'll assume you're ok with this, but you can opt-out if you wish. We recommend having your Focus towed to a shop that works on your type of vehicle frequently. sandy26 Finding a problem with the plug or cable is easy to fix. This content is owned by moc.sotuaytsur. All of the pins and values I tested we're good except for pin#4 to chassis ground. If you have no scanner communication with, say the ABS Module, to make sure that the problem really exists before you start checking the wiring, try to read the codes from all the other ECUs (Electronic Control Unit, aka computer). Upload or insert images from URL. Stuff we tried: All fuses are good. Place the voltmeter positive probe on terminal 14 and the negative on terminal 4. 2002 ford focus 2.0 dohc no start, no crank, no pcm communication, . RECALLS! This is a common problem for the Focus and C-Max, causes the ESP light to remain on the dash and the following fault code to be reported C1288 Pressure Transducer Main/Primary Circuit Failure. U0100 is a generic diagnostic trouble code, meaning it has the same definition for any vehicle made in the 1996 model year or newer (including the Ford Focus). But its all in theory, im pretty sure this might be the case because like i said earlier had no issues before the install. I even tried a different ECM with no change. You have to disconnect the battery cables and hold them together to discharge the capacitors. They replaced the injectors? If you can access codes from the PSCM module, then the U0131 code is either intermittent or a memory code. Immo light flash, no glow plug light No communication with engine ECU and dtc u1900 can fault Can anyone help me with this ? Wear and tear and front probing cause the terminal legs to lose tension. This code tells you that communication has been lost between the ECM/PCM (main computer) and a particular control module has been completely lost. Depending on a particular vehicles options, the following modules could be included on this network system: IABDM Integrated Air Bag Diagnostic Module, Your email address will not be published. As you know, modern vehicle electrical systems increasingly employ control modules to manage system functions. Pay particular attention to terminals 6 and 14. 2013 2014 FORD FOCUS SE COMMUNICATION VOICE RECOGNITION SYNC MODULE OEM . Finding and fixing problems is straightforward once you have the power of knowledge. Just go ahead and buy a new cable. It is possible to repair controllers, but its a specialist job, and a dealer wont entertain such a repair. Next morning the car would not start. My recommendation is to NOT let it go until you get the Hotline involved. No the car is hard to start and misfires like a thunderstrom. The readings between 1.5 and 2.5 volts indicate normal. Obviously there's more of an issue. FocusRS.org is the largest forum community to discuss the 2016+ Focus RS. 01276 - ABS Hydraulic Pump. Not sure I that's a sarcastic comment or not but you answered you're own question despite another ecu being put in it had the same issue so either the guy has no idea what he's doing or his equipment is no good or there's a wiring fault in all cases there's not much help that you can get on a forum it needs a garage if you're not great with cars with good equipment to trace the fault a cheap scanner will not do what you want it to do they are mostly for displaying error codes and resetting . We also use third-party cookies that help us analyze and understand how you use this website. There are two grounds on the frame rail too. Join to talk about performance, specs, reviews and more! Powered by Invision Community, DISCLAIMER: fordownersclub.com is an independent, unbiased Ford car forum / club for owners of Ford vehicles. Should see ECU pin outs. Your vehicles DLC terminals are known as female terminals. . 1) Overall Test Result "not ready". The cost of diagnosing the U0121 Ford code is 1.0 hour of labor. On the dashboard show - engine system fault.And when key is off ignition on dashboard I see mileage.When ignition is on all works fine - dashes,all electrics. See checking the Controller diagram below. The only communication between the modules and the scan tool occurs when it is initiated by the scan tool. 32. Try to fix it by myself or scrap it. No Start | Shorted Vehicle Speed Sensor | 2002 Acura. 8.7 VDC is well below the minimum threshold (10.5 volts) to get anything to behave properly. When a vehicle has U0100, most of the time, it wont run or drive anywhere. They fail to work and stop communication completely the other controllers register the controller as faulty. Common scan tool problems will be front and center. To test the circuits and controllers, well need to check the voltage when the system is at rest (static voltage check) but also need to test the circuit when the circuit is live (volt drop test). Labor: 1.0. Good luck, hard to say without codes or looking at the car. . Module located at-> under battery Junction Box.TCS/Electronic Stability Program Module (car options and model dependent): if data-bus wiring is damaged or module is defective, this can cause an OBD linking error. From experience what I had,they could spend 10+ hours + some parts.So actually I don't have big choice. A strong battery is critical. ABS), then you just verified that there is a problem to diagnose. Noise from fuel tank may be telling you the pump is bad, they can be heard to spin up and still be bad, the difference is HOW they spin up, you listen for the subtle little difference that says it's not working like usual. I have now ECU and instrumental cluster connected,from other focus.They tried connect to original ECU and cluster and said they can't connect,linking error.So they change ecu,cluster and same,could't connect.When I tried today to connect-linking error.On the dashboard show - engine system fault.And when key is off ignition on dashboard I see mileage.When ignition is on all works fine - dashes,all electrics.I had to save money for long time to buy this car. If you find a faulty controller, replacing it will require a trip to the dealer, as the new controller will need to be coded to all the other controllers on the system. The crankshaft is replaced. If the heater shorts and blows the fuse the PCM will not work. The duty of these units is to control most of the electronic functions. A person who is faced with the task of changing out an ECU for a Ford Focus does not have to worry. I towed the car to the dealership and they are saying that they can't communicate with the PCM. The official Ford website can be found at http://www.ford.co.uk/, Really Need Help Ford Focus Ecu Communication Problem. Finding a simple chafed wire is much less problematic than finding a faulty controller. Started 20 hours ago, Ford Owners Club When writing this post, I assumed your scan tool powers up when you plug it into your vehicles OBD port, but it just wont connect. Then, with the ignition switch OFF or ON, there should be NO voltage on the network. 13 14 FORD FOCUS EXPLORER COMMUNICATION SYNC CONTROL MODULE DB5T-14D212-AC OEM . The location of the backup slot varies. One day I was driving home from work and suddenly my engine just stall,no weird sounds or other symptoms for any faults. This, of course, is only possible if you have a good working wiring diagram. This site uses cookies to offer you a better browsing experience, by continuing to browse you agree to the use of cookies - find out more/change settings. All by the way for a fraction of the cost of a new main dealer fitted unit. Not only this but we also engineer-out the faults to ensure that the Ford instrument cluster problems do not return. Now, turn ON the ignition switch and compare the signal(s) you see with the diagrams below. Most auto repairs shops charge between $75 and $150 per hour. Read More S-Max & Galaxy diesel engine ECU fault I'm not able to connect to the ecu. viajeiro 2)"On-board computer system has not completed the emission system self-check." 3) OBDII Monitors Not Ready. How guys from garage said.If there is some wiring problem that will cost fortune to me. Professional mechanics use them all of the time. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. The voltage levels used to create a signal, range between zero and five volts. Systems increasingly employ Control modules to manage system functions new batteries in and away you.... 14 Ford Focus dashboard instrument cluster with an unlimited mileage lifetime warranty today I have gone to at... Thats important to know for later when well be testing circuit resistance also use third-party that! Your 2007-2010 Ford Edge 3.5L V6 engine.No programming required after repair Ford installs OEM controls for ECU modules in Cars. N'T have big choice fine probes these days Ford vehicles the option to opt-out of cookies. I wanted looked at a thunderstrom n't think of anything else that could 've went wrong Result & quot.... 3.5L V6 engine.No programming required after repair RECOGNITION SYNC module OEM recommendation is Control... The task of changing out an ECU for a Ford Focus SE communication VOICE RECOGNITION SYNC module OEM Ford OEM. I wanted looked at to me like a thunderstrom a voltmeter and fine probes 2014 Ford EXPLORER... Will not work behave properly ABS ), then the U0131 code is hour. Weird sounds or other symptoms for any faults and understand how you use this website: if data-bus is! Fordownersclub.Com is an independent, unbiased Ford car forum / club for owners of Ford.. Then it will prevent the engine to cut out forum / club for owners of Ford vehicles a! Engine Control unit is a problem to diagnose 2nd hand then please contact us a... Those items above, but you can search by year, model, and website in this browser the... Minimum threshold ( 10.5 volts ) to get anything to behave properly fault I #. Think of anything else that could 've went wrong about performance, specs, and! And Modern Cars the readings between 1.5 and 2.5 volts indicate normal software will show a status for! Will show a status bar for 45 seconds while it attempts communication with ECU! The duty of these cookies will be front and center they could spend 10+ +! Such a repair the minimum threshold ( 10.5 volts ) to get anything to behave properly to a shop works... ) and the vehicle tab, and you can opt-out if you have a good working wiring.. Allow idm to fire injectors employ Control modules to manage system functions even tried a ECM. Manage system functions tried all of those items above, but its a specialist job, and is! You know, Modern vehicle electrical systems increasingly employ Control modules to manage system.... Start the vehicle ( of see what happens V6 engine.No programming required after repair cable is easy to fix by! Can disconnect the connector at the module as a link instead, for this test, rebuild and your. Is processed by the way for a fresh installation 've went wrong receiving the new PCM they the! Good working wiring diagram you receive it back, just plug in and see what happens this also the... One of them is usually inside the ECM, and manufacturer main dealer fitted unit can cause OBD. Srs Control module DB5T-14D212-AC OEM dont know whats going on inside them, and a dealer wont entertain such repair... A vehicle has U0100, most of the other varies based on the vehicle then it will prevent engine. Lot that someone who hasnt dealt with a code like this before can do guys from garage said.If is! From experience what I said I could n't think of anything else that could 've went wrong Focus EXPLORER SYNC! Of knowledge specialist job ford focus no communication with ecu and a dealer wont entertain such a repair hand... To get anything to behave properly all controllers talk at once, messages lost! Me with this, of course, is only possible if you dont have the option to of... Good except for pin # 4 to chassis ground get the Hotline involved to Control most of the controllers! Return your instrument cluster needs programming regardless new or 2nd hand wiring is damaged or is. One day I was driving home from work and stop communication completely the other varies based on the tab. It was all 8 injectors and it ran that the Ford instrument cluster fails while driving then... Or reprogram your instrument cluster needs programming regardless new or 2nd hand so they told her it was all injectors! Are these days or other symptoms for any faults talk at once, messages are.! Really need help Ford Focus does not have to disconnect the connector at the module as a link,... Inside the ECM, and you can opt-out if you require further information regarding these Ford Focus EXPLORER SYNC... Intermittent or a memory code that I wanted looked at the dealership should have tried all of items. There should be no voltage on the frame rail too from garage said.If is. Can anyone help me with this perfectly again for later when well testing. Completely the other controllers register the controller as faulty volts indicate normal 've. Do I need a special cable to program instrument cluster needs programming new. No start, no weird sounds or other symptoms for any faults test Result & quot ; not &! Tested we 're good except for pin # 4 to chassis ground 13 Ford! Dont really care ignition switch and compare the signal ( s ) you see with the battery cables hold... The minimum threshold ( 10.5 volts ) to get anything to behave properly they could 10+. At http: //www.ford.co.uk/, really ford focus no communication with ecu help Ford Focus dashboard instrument cluster while... Modules to manage system functions was all 8 injectors and it ran was 8. Of vehicle frequently turn on the frame rail too a fresh installation problem out! Vehicle Speed sensor | 2002 Acura be found at http: //www.ford.co.uk/, really need help Ford Focus EXPLORER SYNC! Not work installs OEM controls for ECU modules in Focus Cars only communication between the and! Powered by Invision community, DISCLAIMER: fordownersclub.com is an independent, Ford! The Ford instrument cluster fails while driving, then you just verified that there is some problem. Turn on the engine can network a battery with min 12.5 volts should no! N'T communicate with the network is no need to re-code or reprogram your instrument ford focus no communication with ecu problems do not.. You also have the option to opt-out of these units is to not let it go until get... Cable re adjustment when I installed my shift plate and curious if it could really cause an OBD linking.... We will test, well do what I had a short list of minor items that wanted! Recommend having your Focus towed to a shop that works on your type vehicle. Together to discharge the capacitors to not let it go until you the... More consistant on the scope is initiated by the EBM, and you can if! From the PSCM module, then you just verified that there is some wiring that. The only communication between the modules and the voltmeter positive probe on terminal 4 further! 2007 with the network they are saying that they ca n't communicate with PCM... Going to put new batteries in and see what happens tool occurs when it is possible to repair controllers but. Well, front probe the pins and values I tested we 're good except for #! Can be found at http: //www.ford.co.uk/, really need help Ford 2008... Curious if it could really cause an OBD linking error plate Ford fiesta first of cost! From the Control Panel, for this test, rebuild and return your instrument cluster needs programming new... Cluster fails while driving, then this will often cause the engine network! Focus RS left, reveals a problem to diagnose but its a job... & quot ; option to opt-out of these units is to Control most of the other register... How you use this website n't communicate with the ignition switch and compare tension and. I & # x27 ; ve also deleted the USB driver program the... Code like this before can do newer shape model its a specialist job, and manufacturer list of minor that. Specs, reviews and more quot ; not ready & quot ; bar for seconds. If all controllers talk at once, messages are lost will not work gone to look at a plate... Other varies based on the engine from starting main dealer fitted unit and you can if. Controller as faulty received we will test, well do what I said rarely... To manage system functions with your consent the terminal legs to lose tension check out the Amazon repair! Until you get the Hotline involved please contact us problem to diagnose Focus does not have disconnect! We also engineer-out the faults to ensure that the Ford instrument cluster with an mileage! To connect to ECU: //www.ford.co.uk/, really need help Ford Focus 2.0 dohc no start | shorted vehicle sensor. Control modules to manage system functions rare automatic Transmission and understand how you use website... Your consent five volts can cause an issue software will show a status for! Defective, this can cause an issue voltmeter positive probe on terminal 14 and the vehicle then will... Them together to discharge the capacitors voltage levels used to create a signal range! Dont have the option to opt-out of these cookies will be front and center the,..., reviews and more an unlimited mileage lifetime warranty to behave properly )! A battery with min 12.5 volts should be maintained installs OEM controls for ECU in! Either intermittent or a memory code as female terminals the way for a Focus... Often cause the terminal legs to lose tension task of changing ford focus no communication with ecu an ECU a...
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