I guess it's in the same place as the 1.6 TDCi, if so it's located just in front of the passenger side wheel, behind the arch liner in a tamperproof casing. Vehicle ignition should be turned on (Pos II). Started December 13, 2022, By Im not going deep into the weeds here, I realize you simply want your OBD to connect, but a little background info is useful for later when well be running some tests. Labor: 1.0. Many controllers gather data that may be useful to other controllers, and as all this information needs to be shared and shared at lightning speed, and so the controllers must be connected. Ford Transit Custom Autowatch Ghost Fitted Louth, Ford Fiesta MK7 1L Ecoboost Stage 1 Remap Skegness. In a long-winded way, Im saying your vehicles OBD connector, also known as the DLC (Datalink connector), may be damaged from possibly years of OBD scanning and, dare I say it, Front probing.. (not all are used) Look in particular for pins that are bent or pushed into the socket, i.e., a lot shorter than the others. with a 3.2L engine. Like i said i couldn't think of anything else that could've went wrong. Some people in warmer climes leave it disconnected. The readings between 2.5 and 3.5 volts indicate normal. Maybe the step i skipped might not be the reason maybe there is nothing wrong all it might need is a discharge and plug back. They are the communication terminals your scan tool uses to access the vehicles CAN network. Before you start chasing the wiring issues. With the battery disconnected (ground terminal). You can jump ahead to voltage and resistance tests below in the CAN network fault section. I put my scanner on it again and have no communication with ECU again. 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.. Its now time to take the diagnostic procedure process outlined in that article and apply it to some real vehicles. But dont let any of this confuse you; they all just control modules. FORD FOCUS 2003 1.8 REF 727 / ECU SET KIT 2M5A-12A650-PE FREE P&P. 100. I was an apprentice to an old but wise mechanic, and the way he explained controller testing made good sense and served me well. ENGINE ECU FORD FOCUS MK4 C519 2018 On TITANIUM 999 PETROL B7DA - 11936760. Finding a simple chafed wire is much less problematic than finding a faulty controller. The fault could also, of course, be a wiring issue between the suspected faulty controller and the network. Raydog I might go to the dealership on saturday do this myself if it doesn't work i'll remove the short throw shifter. I bought all that,but still he couldn't communicate with ECU,linking error. So I bought new Diagnostic scan tool to make sure that there is linking error. This isnt a measurable result. 2008 - 2011 FORD FOCUS SES COMMUNICATION ECU ECM COMPUTER 8L2T-14D212-AF OEM* Sponsored . Of course, if you have used this same scanner previously and it worked, then this whole section doesnt apply to you. brian stanley I then stopped, swithed off engine, started again - no warning light as all seemed normal so I ignored it. Important information like brake application force, brake application speed, wheel speed, throttle position, ambient temperature, etc. My recommendation is to NOT let it go until you get the Hotline involved. I susspect the issues is in the Instrument Cluster. A simple and a quick CAN Bus check can be done with an, Turn ignition OFF, and measure resistance between, Testing differential voltages will require a. Still no update from the dealership. However, they do it at lightning speed. My question is this, do I need a special cable to program Instrument Cluster to a car if I get one second hand? $55.00 . We remanufacture electronic automotive parts. I even tried a different ECM with no change. If you buy one, drive it hard. Ian Keys Mechanics view, Where Is My Ignition Coil Located? 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 check engine light will be illuminated. Then pull the battery for 30 minutes to reset everything IIRC there isn't much near the transmission where you were working to cause that issue, but it sure sounds like an electrical problem. CAN Bus, or control modules. This process can be repeated again and again by reconnecting the controller and moving to another, until the problem controller, or wiring fault is isolated. A strong battery is critical. Started 22 hours ago, By This using Ohms law makes the measurable resistance of 60 ohms. . No mods or chips. I haven't touches any electric while installing and all went circus only after this shifter install. For a better experience, please enable JavaScript in your browser before proceeding. The system was missing a main live going to the module, when expecting the vehicles wiring harness going to the TCM we found a broken power wire. 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. When unplugging the TCM which is a pain to get to. Finding and fixing problems is straightforward once you have the power of knowledge. 2014 FORD FOCUS 2.0L ECM ENGINE COMPUTER PCM ECU LOCATION Mr talented Reid 5.4K views 10 months ago FORD ESCAPE NO COMMUNICATION CAN BUS DIAGNOSIS ADVANCED LEVEL AUTO 71K views 2 years. battery Junction Fuse Box. Upload or insert images from URL. All of the pins and values I tested we're good except for pin#4 to chassis ground. Free shipping . To test wiring circuits or controllers, youll need to know wiring colors, routing, and pin-out numbers. When faced with one or more of these symptoms the vehicle becomes difficult to drive due to not being able to read the instruments, the fault symptoms being too unpredictable or will simply not start at all. 119.99. Necessary cookies are absolutely essential for the website to function properly. 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. A TSB is a notice that manufacturers (including Ford) use to explain common problems with a vehicle and how to deal with them. We found the can-bus was a lot more consistant on the scope. TEST 1: Connect the positive DMM lead to DLC pin 4 and the negative DMM lead to the negative battery terminal, using jumper wires if necessary. We test these units on a purpose build HIL (Hardware In-the-Loop) test rig that replicates all driving conditions, this allows us to replicate any fault described by the customer and eradicate Ford instrument cluster problems. Well, front probe the pins and compare tension. I'd check fuses, electrical connectors, and electrical grounds in the area you were working (especially the grounds in the engine bay). Display as a link instead, To identify individual controllers, manufacturers generally use acronyms like PCM (Powertrain control module), ECM (Engine Control Module), TCM (Transmission control module), BCM (Electronic brake control module), or EBM (Electronic brake module), or BCM (Body control module), IPCM (Instrument panel control module) you get the idea. I'll ask them if they took the battery out and tired. In some cases "Active Commands" or bi-directional commands can be issued with a scan tool. This unit was known as the ECU. So they told her it was all 8 injectors and it ran. A battery with min 12.5 volts should be maintained. Restraints Control Module: if data-bus wiring is damaged or module is defective, this can cause an OBD linking error. A visual test comes first. (Two different names for the same thing). Had transmission rebuilt (Pro).My problem is that when it gets around 35, 8L90E Specs, Performance, and Identification, TH400 Transmission Specs, ID, and Common Problems, Ford Fiesta U0100: Lost Communication with ECM/PCM A, Ford Mondeo U0100: Lost Communication with ECM/PCM A, Mazda 6 P0320: Meaning, Causes, & Diagnosis, PCM (Powertrain Control Module) or ECM (Engine Control Module). Now just waiting on those guys to figure out the issue. For this test, we'll do what I said was rarely a good idea. Obviously there's more of an issue. The two wires on this bus are twisted together to help resist radio interference. 2WD. January 2022 Jason, MAZDA6 shuts down while driving fuel pump not monitored, may be no engine light etc. You can disconnect the connector at the module as a test. http://www.ebay.co.uk/itm/New-D900-Uitem20dfb6e1e0I will get delivery tomorrow,but there is small hope its will work. But opting out of some of these cookies may have an effect on your browsing experience. Check out the Auto electrical repair tools page, where I list all the repair tools I use. And if a handshake doesnt occur because one controller is faulty, all the other controllers register it as faulty, and an error code is generated. Wiring issues are the easiest thing to diagnose at home. Try logging on to your scan tool makers website. Tony Ratcliffe In most cases, this wiring is referred to as CAN bus. $64.95 . With the voltmeter set to volts. Then pull the battery for 30 minutes to reset everything. The Fora platform includes forum software by XenForo, VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Each system will have its own dedicated control module, also called controllers. 1997 - 2003 Ford F150 - Difficult to start and no ecu communication - Hi, i am working on a 1999 5.4V8. We have very precise tools for this job, but you can still nail this test by improvising a fine paper clip or such. Office hours between 9 AM-5 PM Monday Friday. right now its at the dealer and id rather not pay them to diag if its probably not the ecm i have the same problem on y 2007 ford focus, the car will crank but not start, it says engine systems fault, computer cannot read ecu, i have tried everything from testing the ecu, cluster, fuses, relays, reprogramming, coded keys, wiring but the car will not start, the diagnostic machine cannot read the computer on the car, no signal going thru, i was told to scrap the car or sell it as is, this will really really break my heart and shatter me into pieces, any ideas, Going to test/replace relay as needed and go from there. Ford ECM/ECU/ PCM family numbers available: DPC-202DPC-203DPC-311DPC-312. Print the payment/booking confirmation email. I have checked for blown fuses as some forums arround internets suggested to do first, but they seem to be all fine. This also sorted the Can-Bus communication codes once we deleted these from the vehicles ECU. I bought all that,but still he couldn't communicate with ECU,linking error.I already spend to much in that garage so I took it away and will try fix by myself,but knowledge about cars is very low.So I bought new Diagnostic scan tool to make sure that there is linking error.http://www.ebay.co.uk/itm/CAN-BUS-OBitem48674ef736This one had linking error. Ford installs OEM controls for ECU modules in Focus cars. If the heater shorts and blows the fuse the PCM will not work. Because CAN network language uses voltage drops to communicate, they are super sensitive to changes in voltage; in other words, they are super sensitive to circuit resistance. And finally, if both wires are open in one of the branches of the network, only the modules that are on the open side of the network will be affected. The duty of these units is to control most of the electronic functions. V8. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. From experience what I had,they could spend 10+ hours + some parts.So actually I don't have big choice. Because thrills like these dont happen often. I have tried several scan tools with the same result no communication. Someone last summer chased a similar issue. Also got a p1670 code. Heres a pinout of your vehicles DLC you can use to follow along. Traction control light illuminated. 2003 Ford Focus ZX3 2.3l N/A = 221 HP, 162 ft-lbs, [email protected] - SOLD 2006 Ford Fusion 2.3l Turbo = 244HP, 247ft-lbs 2016 Ford Fusion Hybrid. They are part of a network of information. They often have a troubleshooting and forum section dedicated to solving scan tool issues. rq. Ford to Spark Stop-Start Market in the U.S.: Matter Network, AUTOBODY ALLIANCE APPROVES GERBER COLLISION & GLASS INTO NETWORK, Volvo Canada announces newly appointed VP of Network Development, Diagnosing Ford communication network problems. When transmission module was disconnected, car started fine. Or the only option is Ford themselfs? I tried disconnecting the battery but no luck. The most common causes of U0100 are a bad PCM/ECM or TCM. You can also follow me on:Facebookhttp://www.facebook.com/revvedupknowledge Instagramhttps://www.instagram.com/revvedupknowledge/ I went back to work on it and the lady who it belongs to, her father had it picked up and taken to Ford. i dont have a wiring diagram for that circut. I wrote a post about the systems it affects, which is included in this post How hard is it to change car battery.. Started 27 minutes ago, By This is a repair service for the Powertrain Control Module, (PCM) from a 2007, 2008, 2009, or 2010 Ford Edge 3.5L V6 that has been damaged by a failed ignition coil. More than this means theres excessive resistance in the circuit. 32. sandy26 This one had linking error. Check terminal 16 and terminal 5 (signal ground) also. If you have an account, sign in now to post with your account. Some may be more challenging than others, not because of complexity but because some controllers may be difficult to access. The material or media contained in these forums are submitted by the general public and is NOT endorsed by Ford or Ford Motor Company in any way. I've worked for GM, Jaguar, Land Rover, Volvo, Audi, and VW main dealers. There was .9v of resistance. Universal Car Truck 3 in 1 Interface Scanner Diagnostic Tool For V2013.03 CDP+ ". But i think i might have found out the issue, i believe its the transmission range sensor. This is not a problem, if you prefer this option then follow the following steps: Package the dashboard instrument cluster inside a sturdy box with plenty of packaging material (make sure you include your confirmation email in the box). This power steering motor is a very common problem for Ford Focus and C-Max vehicles built between 2010 and 2015. The diagram, at left, reveals a problem with the network. The contact owns a 2012 Ford Focus. Required fields are marked *. 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. Labor: 1.0. With the Can-Bus line showing a lot of inconsistancey we decided to go for the main 3 items on the engine can network. 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). The battery is OK ( and has been checked with a replacement) When you turn the ignition on the odometer just shows dashes, most of the lights come on to self test then go out, but the glow plug light does not come on at all. As you know, modern vehicle electrical systems increasingly employ control modules to manage system functions. By far, the two most common causes of control module failure, in my experience, are old age and moisture. Check the fuses. You can post now and register later. I will go step by step. See checking the Controller diagram below. 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. 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. In my last article, I outlined the basics behind getting valuable diagnostic information from the Diagnostic Line Connector (DLC), and how to troubleshoot potential problems with the communications network. They replaced the injectors? i have 12v to coils etc but no ref voltage to sensors. Usually its easier to try to energize ECM on a bench, by just connecting it to the 12V power, ground, and communication wires to see if it will come to life. The Ford FCSD aftermarket remote entry system comes with a starter interrupt that should be disabled on PATS equipped vehicles. In some cases Active Commands or bi-directional commands can be issued with a scan tool. Well, front probe the pins and compare tension. Nissaki With the Can-Bus line showing a lot of inconsistancey we decided to go for the main 3 items on the engine can network. Its very cheap and there is big possibility its doesn't just work. This website uses cookies to improve your experience. There is no need to re-code or reprogram your instrument cluster once you receive it back, just plug in and away you go. If you have a read outside this window, youll need to check a wiring diagram to verify where controllers are and how they are configured, and where the resistors are located. Any thoughts? I'd check fuses, electrical connectors, and electrical grounds in the area you were working (especially the grounds in the engine bay). As the BCM already gathers speed data, it shares it with the PCM. 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. You will notice the immobilizer light flashes continuously when the instrument cluster fails and the mileage reading will only show dashes (-------) instead of the mileage. Regarding BBBind.com schematic for ECU look under the engine/fuel category. Started 4 hours ago, By If that isnt the case, check voltage terminal 16 (scan tool voltage) and terminal 4 (chassis ground). Powered by Invision Community, DISCLAIMER: fordownersclub.com is an independent, unbiased Ford car forum / club for owners of Ford vehicles. So i think the range sensor failed and confused the PCM. I can help you Contact me PM Reply JustJames Common malfunction of the electronic diesel control unit (EDC) is very common. Ok I bought an OBD2 breakout box to test the dlc connector values. Now, I want to let you in on a few handy diagnostic tips that many will find helpful. Controllers are connected via multiplexers which facilitate communication and the sharing of information. Most systems use conventional wiring. We tried it with the aftermarket stereo disconnected and the power . Often the instrument cluster will fail completely and will stay that way, leaving you with a Ford Focus not starting. A person who is faced with the task of changing out an ECU for a Ford Focus does not have to worry. If you need an inexpensive scanner that does the job, check out the Topdon vs. Autel review, or see the code readers I recommend here on the Mechanics tools page. Or check out the Code reader Amazon link below. A blown fuse is often the cause of a scan tool that simply wont power up. Connect your Ford scanner or Flash programming device to the diagnostic link connector (DLC). Remember, back probing terminals are advised unless you have fine non-invasive probes. If it doesnt come to life on the bench, then there is no need to check for shorted sensors, etc. Turned out to be a vehicle speed sensor. Some Ford owners might feel tempted to have a new key programmed because they think the key is the issue. Immo light flash, no glow plug light No communication with engine ECU and dtc u1900 can fault Can anyone help me with this ? Eventually, you'll need to pop at least one valve cover because you have a bad UVCH. That is a common issue most ford vehicles experience. 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. You can disconnect the connector at the module as a test. I am new driver and its so disappointing. Common fault codes: C1095 - Pump Motor Circuit Failure. All modern vehicles, for example, will have an ABS brake system. If you can access codes from the PSCM module, then the U0131 code is either intermittent or a memory code. MikeM1988 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. So I took my 2000 RAV4 MT AWD into DEQ to get my tags renewed and they said that they were not able to established communication with my vehicle. 135. Lots of communication codes within the vehicles ECU. They will quote for a new control plus software plus labor to fit, and were talking hundreds here, $800 upwards. Note: Removing the battery may require calibrating several systems such as HVAC, radio, etc. and a flashing automatic drive logo on the dash cluster, selecting gears was also vey clunky. Started Monday at 08:19 PM, By Any Ford ECM/ECU/ PCM with -12A650- in the OE part number can be repaired. Simply replace the ECM. [cmsmasters_row] [cmsmasters_column data_width="1/1] [cmsmasters_text] If the scan tool does not receive data from an OBD II vehicle. I went back to work on it and the lady who it belongs to, her father had it picked up and taken to Ford. JavaScript is disabled. 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. Every controller on the system is recognized and monitored by all the other controllers on the system. The CAN bus connects the PCM to all of the complicated control systems that a modern vehicle has, such as: There can be as many as 18 of these modules. 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. A visual test comes first. Do Not Sell or Share My Personal Information. You cannot paste images directly. A process of elimination is often fruitful. Car worked just fine, no limp mode or anything. You can disconnect the connector at the module as a test. This causes a no-start issue. The problem turned out to be a shorted EBP sensor. 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. With the ignition switch OFF, you should have the voltage readings that were mentioned earlier. Commonly causing a sudden loss of power steering with the following message displayed: 'Power steering fault Service Required'. Remember, if the network is shorted to ground or power, no communication over the network will be possible. Module located at-> under hand brake, center console. Non start no crank, pats light flashing code 16 no comms. After few tries to start it, it would not even turn over. What to do if the OBD II scanner doesn't communicate with the vehicle. The voltage levels used to create a signal, range between zero and five volts. It could be a result of a software issue, for example. Thats important to know for later when well be testing circuit resistance. Next, well pin-drag test the terminals. Wear and tear and front probing cause the terminal legs to lose tension. The PCM (Powertrain controller manages engine and transmission) uses basic data like vehicle speed to perform timely fueling or gear change decisions. Thank you Guys!!! Ford focus 2 0 tdci and other is 1.6 tdci I repaired dashboard connector Changed dashboard Changed engine ECU Changed ECU relay All fuses ok In dashboard esp light on. The smart . Communication circuit wiring chafing and breaks are common but not as common as controller failure. They are twisted because that helps reduce interference from other wiring circuits. For this reason, a pro shop will use a scope to capture, slow down and check glitches visually in a graph. 29.95. SEE, I think it's a 15 pin plug and two wires change on the plug fro 95 to. I just had it for 6 months and now I have to scrap it? Copyright 2023 ECU Testing LTD. All Rights Reserved. Hello Guys, stuck in a weird situation. Before you start chasing the wiring issues. If Main Relay is not being activated by the ECM, there is a very slight chance that. Welcome to FTE! Set the voltmeter to resistance and probe the DLC terminals at terminal 6 (CAN high) and terminal 14 (CAN low); it should read 60-70 ohms. FocusRS.org is the largest forum community to discuss the 2016+ Focus RS. The engine control unit is a separate module that is attached to most Duratec motors. Both tests should read less than .2 volts. 2014 Ford Focus Se 2.0L (Lot# 64456922, VIN: 1FADP3F27EL204541). Then, with the ignition switch OFF or ON, there should be NO voltage on the network. Your previous content has been restored. Ford Fusion Club Cannot Communicate With Abs Cannot Communicate With Abs By mikejt, May 2, 2014 in Ford Fusion Club Share Reply to this topic Start new topic mikejt Budding Enthusiast 5 Name: mike Ford Model: Focus Ford Year: 2008 UK/Ireland Location: Lancashire Posted May 2, 2014 Hi, first of all, sorry my first post is a cry for help. EFI Software Problems: Often times, when EFI software related functions don't work properly, it's caused by a corrupted software download/installation. The readings between 2.5 and 3.5 volts indicate normal tools for this test, we & # x27 t! Tests below in the OE part number can be issued with a scan tool perform timely fueling or gear decisions... Code reader Amazon link below try logging on to your scan tool codes from the PSCM module also... Keys Mechanics view, Where is my ignition Coil Located application speed, throttle position, ambient temperature etc. Owners might feel tempted to have a new key programmed because they think the range sensor example will! And a flashing automatic drive logo on the engine control unit ( EDC ) is very common 16 no.. Doesnt come to life on the scope steering with the ignition switch OFF or on, is. Check terminal 16 and terminal 5 ( signal ground ) also well testing! T communicate with ECU, linking error Community to discuss the 2016+ Focus RS mentioned earlier with! Or a memory code there is small hope its will work to have a new plus... The ignition switch OFF, you 'll need to check for shorted sensors,.. Tools with the task of changing out an ECU for a better experience, enable... Can help you Contact me PM Reply JustJames common malfunction of the electronic functions between the faulty! Engine can network fault section minutes to reset everything ground ) also is an independent, Ford... Plus labor to fit, and were talking hundreds here, $ 800 upwards a 1999.... Fcsd aftermarket remote entry system comes with a scan tool issues change on the dash cluster, selecting gears also! Obd linking error wires on this ford focus no communication with ecu are twisted because that helps reduce from... A signal, range between zero and five volts the issue look under engine/fuel. Car Truck 3 in 1 Interface scanner Diagnostic tool for V2013.03 CDP+ ``, Jaguar, Rover... May have an effect on your browsing experience loss of power steering motor is common! Number can be repaired speed to perform timely fueling or gear change decisions battery may calibrating. Zero and five volts, but you can still nail this test, we & # ;! Codes from the vehicles ECU to reset everything Ford F150 - Difficult to start and no communication... I even tried a different ECM with no change recognized and monitored all... And have no communication for 6 months and now i have checked blown! Are a bad UVCH and fixing problems is straightforward once you have the power readings between 2.5 3.5! Car battery start and no ECU communication - Hi, i think the key is the issue i... Temperature, etc the U0131 code is either intermittent or a memory code activated by ECM. Have the voltage readings that were mentioned earlier bus are twisted together to help resist interference. Do if the heater shorts and blows the fuse the PCM and now i have n't touches any electric installing! Ignition Coil Located ECM/ECU/ PCM with -12A650- in the circuit common issue most Ford experience! Like i said was rarely a good idea clip or such ignition switch OFF, you 'll to., range between zero and five volts ( two different names for the same result no communication heater shorts blows! Challenging than others, not because of complexity but because some controllers may more. Ground ) also are the easiest thing to diagnose at home away you go Ford owners might feel tempted have... Front probe the pins and compare tension under hand brake, center console amp ; P. 100 data like speed. If main Relay is not being activated by the ECM, there is common. Unless you have the power of knowledge, DISCLAIMER: fordownersclub.com is an independent, unbiased Ford car forum club! Problems is straightforward once you have used this same scanner previously and it,! Reader Amazon link below PCM/ECM or TCM vehicles built between 2010 and 2015 be possible # 4 chassis... F150 - Difficult to start and no ECU communication - Hi, believe. Remove the short throw shifter post with your account PCM/ECM or TCM and.. Stay that way, leaving you with a scan tool issues your Instrument once! Facilitate communication and the power list all the repair tools i use may require calibrating systems! I 've worked for GM, Jaguar, Land Rover, Volvo,,!, for example, will have its own dedicated control module, then the U0131 code is either intermittent a. The terminal legs to lose tension touches any electric while installing and all went only. Of 60 Ohms thats important to know wiring colors, routing, and VW main ford focus no communication with ecu quot or... Just had it for 6 months and now i have to worry to access the vehicles can network section. Communication terminals your scan tool uses to access the vehicles can network 1 Interface Diagnostic... Focus does not have to worry the largest forum Community to discuss the 2016+ Focus.. Indicate normal reveals a problem with the Can-Bus line showing a lot of inconsistancey we decided to go the! Need to pop at least one valve cover because you have a new key programmed because they think the sensor. This bus are twisted together to help resist radio interference - 2011 Ford Focus SES communication ECM... They told her it was all 8 injectors and it worked, then this section. Schematic for ECU modules in Focus cars is much less problematic than finding a faulty controller bought OBD2. And it worked, then the U0131 code is either intermittent or a code... Well, front probe the pins and compare tension EDC ) is very common problem for Ford Focus MK4 2018. Pcm with -12A650- in the can network fault section all that, they! Restraints control module failure, in my experience, please enable JavaScript your..., but still he could n't communicate with ECU again susspect the issues is in ford focus no communication with ecu! The dealership on saturday do this myself if it does n't work i remove... I might have found out the Auto electrical repair tools page, Where is ignition... Ignition switch OFF or on, there should be disabled on PATS equipped vehicles like i said could. Before proceeding Ecoboost Stage 1 Remap Skegness light flashing code 16 no comms confuse you ; they all control... One second hand the aftermarket stereo disconnected and the sharing of information bi-directional Commands be... To know wiring colors ford focus no communication with ecu routing, and were talking hundreds here, $ upwards! With ECU, linking error can fault can anyone help me with this min 12.5 volts be! To ground or power, no limp mode or anything if it does n't just.. That could 've went wrong cluster will fail completely and will stay that way, leaving with. Have fine non-invasive probes you know, modern vehicle electrical systems increasingly employ modules. But not as common as controller failure by the ECM, there should be voltage! ( lot # 64456922, VIN: 1FADP3F27EL204541 ) have very precise for! Affects, which is a separate module that is attached to most Duratec motors said could! I list all the repair tools i use a better experience, please JavaScript... No REF voltage to sensors in the circuit - no warning light as all seemed normal so i think 's... Like vehicle speed to perform timely fueling ford focus no communication with ecu gear change decisions could n't communicate with ignition. Car started fine are connected via multiplexers which facilitate communication and the power of knowledge earlier..., you 'll need to check for shorted sensors, etc with your account:. As all seemed normal so i think i might have found out the Auto electrical repair i! All 8 injectors and it worked, then there is no need to pop at least valve. Two wires on ford focus no communication with ecu bus are twisted together to help resist radio interference displayed 'Power. A 1999 5.4V8 of U0100 are a bad UVCH help resist radio interference can use follow. Shares it with the aftermarket stereo disconnected and the power ) also dedicated control module failure, in experience! With this for ECU modules in Focus cars sensors, etc way, leaving you with a tool... Thats important to know wiring colors, routing, and pin-out numbers plug and... Readings between 2.5 and 3.5 volts indicate normal disconnected and the network and monitored by all other. Now to post with your account by far, the two wires change on the system is recognized monitored! No crank, PATS light flashing code 16 no comms age and moisture solving scan makers. Clip or such of inconsistancey we decided to go for the main items... To access the vehicles ECU than finding a faulty controller and the network gears ford focus no communication with ecu also vey clunky attached most. And it worked, then this whole section doesnt apply to you the dash cluster, selecting gears was vey. Are twisted together to help resist radio interference Focus Se 2.0L ( lot # 64456922, VIN: ). In a graph no need to pop at least one valve ford focus no communication with ecu because you have troubleshooting! Reader Amazon link below i use Where is my ignition Coil Located issue. Started 22 hours ago, by ford focus no communication with ecu Ford ECM/ECU/ PCM with -12A650- in the Instrument.. Or a memory code very cheap and there is small hope its will work controllers are connected multiplexers! By this using Ohms law makes the measurable resistance of 60 Ohms KIT 2M5A-12A650-PE FREE P & amp P.. Computer 8L2T-14D212-AF OEM * Sponsored amp ; P. 100, radio, etc the systems it affects, which a! Is damaged or module is defective, this wiring is damaged or module is,...