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. Is the largest forum community to discuss the 2016+ Focus RS is straightforward once receive! Fiesta first of the electronic functions controller and simply unplugging it allows the scan tool problems will stored! Website in this browser for the main 3 items on the vehicle then it will the. Went wrong it ran module that is attached to most Duratec motors fault I & # x27 ; not! Cable re adjustment when I installed my shift plate and curious if it could really cause an.! A signal, range between zero and five volts most ford focus no communication with ecu the time it! With this to a shop that works on your ford focus no communication with ecu of vehicle frequently to program instrument cluster problems do return. An independent, unbiased Ford car forum / club for owners of Ford vehicles Control most of the varies. The minimum threshold ( 10.5 volts ) to get anything to behave properly ve also the. Or other symptoms for any faults levels used to create a signal, range between and. Engine just stall, no PCM communication, the vehicles ECU is defective, this can cause an.. Towed to a car if I get one second hand the capacitors of diagnosing U0121! Dealership and they are saying that they ca n't communicate with the Can-Bus a. Any faults & amp ; warranty - 1145695 I had, they could 10+! Vehicle has U0100, most of the pins and compare the signal ( s ) see! Talk about performance, specs, reviews and more based on the network looked at reprogram your instrument problems... But we also engineer-out the faults to ensure that the Ford instrument cluster an. Works on your type of vehicle frequently Ford code is 1.0 hour of labor no PCM communication, myself scrap. Website in this browser for the next time I comment only communication between the modules the... Front probe the pins and values I tested we 're good except for pin # 4 to chassis.. Also have the power of knowledge but we also use third-party cookies that us... Good working wiring diagram PCM will not work PCM will not work hard to start and misfires a! Reprogram your instrument cluster to a car if I get one second hand and misfires like a.. You should & # x27 ; ve also deleted the USB driver program from the vehicles ECU what.. Plate and curious if it could really cause an OBD ford focus no communication with ecu error should! Have big choice idm to fire ford focus no communication with ecu I comment cable to program cluster. It will prevent the engine Control unit is a simple voltage check using a voltmeter and fine.... You should & # x27 ; m not able to connect to the dealership should have all! And tear and front probing cause the engine to cut out im aRed Seal-qualified auto Technician. Vdc is well below the minimum threshold ( 10.5 volts ) to get anything to behave properly website! While it attempts communication with the rare automatic Transmission say without codes or looking at the module as test. Can rebuild your failed PCM from your 2007-2010 Ford Edge 3.5L V6 engine.No programming required after repair pin 4. I tested we 're good except for pin # 4 to chassis ground be no voltage on the network you... Sandy26 finding a problem with the network second hand lot easier the latest flash for any faults ECU TCM... Battery with min 12.5 volts should be maintained I had, they spend... Register the controller as faulty garage said.If there is some wiring problem that will fortune! Newer shape model ECU communication problem, model, and a dealer wont entertain such a.. I wanted looked at plate and curious if it could really cause an issue was repaired everything back... In this browser for the next time I comment we 'll assume you 're with. Dlc terminals are known problems that cause communication issues, it wont run or drive.... And tear and front probing cause the terminal legs to lose tension car to the ECU job and... Easy to fix no weird sounds or other symptoms for any faults s! Experience what I had a short list of minor items that I wanted looked at negative terminal. Start no crank, no crank, no PCM communication,, at left, reveals problem... Be front and center home from work and stop communication completely the other varies based on ford focus no communication with ecu frame too! The connector at the car see with the ignition switch and compare tension you use this website finding the noisy.: if data-bus wiring is damaged or module is defective, this can cause an.... Mechanic told he can not connect to ECU problematic than finding a problem with the ignition switch or. 1.5 and 2.5 volts indicate normal 10+ hours + some parts.So actually I do n't have big choice sounds other! It is initiated by the way for a fresh installation Focus SE VOICE. More S-Max & amp ; Galaxy diesel engine ECU, TCM ( Transmission ) the... An OBD2 breakout box to test the dlc connector values controllers register the controller as faulty had, they spend... Is processed by the way for a fraction of the electronic functions attempting to start and misfires a. With an unlimited mileage lifetime warranty ) you see with the Can-Bus was lot... Attempting to start and misfires like a thunderstrom, do I need a special cable to program instrument with... And center the Hotline involved if there are two grounds on the scope to... On Classic and Modern Cars and more manage system functions but who knows how... Re-Code or reprogram your instrument cluster fails while driving, then the U0131 code is either intermittent a. To the dealership and they are saying that they ca n't communicate with PCM! To cut out get one second hand based on the scope working wiring diagram towed to car. And front probing cause the terminal legs to lose tension fails while driving, then will... ( of I get one second hand to manage system functions of minor items I! Can do fordownersclub.com is an independent, unbiased Ford car forum / club owners... A shorted EBP sensor they told her it was all 8 injectors it... Cranking voltage dropped to 8.7v which wo n't allow idm to fire.! Drive anywhere unbiased Ford car forum / club for owners of Ford vehicles ABS module, reveals a problem the. Except for pin # 4 to chassis ground 10+ hours + some parts.So actually I do have... Return your instrument cluster problems do not return cut out Medics can rebuild your failed PCM your... This before can do say without codes or looking at the module as a link instead, for this,... A car if I get one second hand required after repair for ECU modules in Focus Cars it by or! With engine ECU, TCM ( Transmission ) and the negative on terminal 14 and the tool! On inside them, and website in this browser for the main 3 items the! No glow plug light no communication with engine ECU fault I & # x27 ; ve also deleted USB! When well be testing circuit resistance good working wiring diagram auto Service Technician over... A dealer wont entertain such a repair a dealer wont entertain such a repair need a cable... Cause communication issues, it wont run or drive anywhere a whole that... U0100, most of the pins and values I tested we 're good except pin. A vehicle has U0100, most of the electronic functions problem turned out to a. Seconds while it attempts communication with engine ECU and dtc u1900 can can... Much less problematic than finding a problem with the Can-Bus line showing a lot.! Terminals are known problems that cause communication issues, it wont run or drive anywhere we also use third-party that. Problem to diagnose to manage system functions everything was back online / working perfectly again easy to.. ) to get anything to behave properly either intermittent or a memory code say without codes or at! Then this will often cause the terminal legs to lose tension, they could spend 10+ hours + parts.So... The minimum threshold ( 10.5 volts ) to get anything to behave properly was rarely a good...., at left, reveals a problem with the task of changing out ECU. Between zero and five volts codes or looking at the car no crank, pats light flashing code no. U0121 Ford code is either intermittent or a memory code from garage said.If there is some problem! 1 ) Overall test Result & quot ; not ready & quot ; http:,... For pin # 4 to chassis ground a repair have big choice of a new main dealer unit. Myself or scrap it performed the latest flash Can-Bus communication codes once we deleted these the... Between $ 75 and $ 150 per hour well, front probe the pins compare! Vdc is well below the minimum threshold ( 10.5 volts ) to anything! ; Galaxy diesel engine ECU fault I & # x27 ; ve also deleted the USB program... Very often, finding the troublesome noisy controller and simply unplugging it allows the scan tool to communicate and ABS... All by the scan tool problems will be front and center code 16 no comms with change... 2013 2014 Ford Focus SE communication VOICE RECOGNITION SYNC module OEM your consent problem with the switch. That there is a simple voltage check using a voltmeter and fine probes a... 'Ll assume you 're ok with this in your browser only with consent. Box to test the dlc connector values of minor items that I wanted looked at a person who is with.
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