Ford Focus 2006 / 2007 with the rare automatic transmission. FORD FOCUS 2003 1.8 REF 727 / ECU SET KIT 2M5A-12A650-PE FREE P&P. 100. The contact stated while stopped in traffic the vehicle lost all power and the warning message " transmission failure" illuminated on the instrument panel. See more 2008 Ford Focus Communication Control 8L2T14D2. Check for corrosion or debris in the plug. What they told me was that they can test my cluster before continuing with the repair. The readings between 2.5 and 3.5 volts indicate normal. Pay particular attention to terminals 6 and 14. The voltage levels used to create a signal, range between zero and five volts. With the battery disconnected (ground terminal). P0100 is difficult to diagnose, even for an experienced automotive technician. We found the can-bus was a lot more consistant on the scope. There are thousands of auto diagnosis articles on this site, and weve only recommended this on a few of these codes. No crank no start status and No communication with PCM. Required fields are marked *. Also got a p1670 code. This content is owned by moc.sotuaytsur. Powered by Invision Community, DISCLAIMER: fordownersclub.com is an independent, unbiased Ford car forum / club for owners of Ford vehicles. 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. Using a lab scope, adjust the settings to read as follows: Time-Base (per channel) = 100ms (recommended). The check engine light will be illuminated. As you know, modern vehicle electrical systems increasingly employ control modules to manage system functions. Started July 8, 2022, By Someone last summer chased a similar issue. Common fault codes are - P0607 & P2110. See checking the Controller diagram below. If you can access codes from the PSCM module, then the U0131 code is either intermittent or a memory code. When unplugging the TCM which is a pain to get to. Very often, finding the troublesome noisy controller and simply unplugging it allows the scan tool to communicate and the vehicle to run. You can also follow me on:Facebookhttp://www.facebook.com/revvedupknowledge Instagramhttps://www.instagram.com/revvedupknowledge/ How To Diagnose A Faulty ECU With No Communication - YouTube 0:00 / 6:49 How To Diagnose A Faulty ECU With No Communication ECU TESTING 11.9K subscribers 167K views 1 year ago No start of. You have to disconnect the battery cables and hold them together to discharge the capacitors. 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, Mon-Fri 9:00am-10:00pmInternational dial +44 1773 535638. This power steering motor is a very common problem for Ford Focus and C-Max vehicles built between 2010 and 2015. Try to fix it by myself or scrap it. Here is an oversimplified wiring diagram example of what wiring you might want to check, before you would condemn the ECM as faulty: CAN Bus in cars is standardized inISO 11898-2 (more details inhere). Good luck, hard to say without codes or looking at the car. 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. 2002 ford focus 2.0 dohc no start, no crank, no pcm communication, . 135. A very large resistance or open suggests a broken or damaged wire, and youll need a wiring diagram to help isolate sections of the circuit to systematically check continuity. Thats a lot easier to deal with than the 15+ modules that a modern car or truck can have. You can disconnect the HID/DRL connectors or fuses as a test.Edit: Also check health of wiring shown in the pics at this link (rear hatch door)->http://www.focusfanatics.com/forum/s09&postcount=5. You can disconnect the connector at the module as a test. zontjiks, As said at the beginning of this post, Ive assumed you have power in the scan tool, but it isnt communicating. 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. 97 it's a, I have a 2007 h3 hummer base model. Heres a pinout of your vehicles DLC you can use to follow along. By These Ford Focus instrument clusters are prone to common failure, this will cause an intermittent failure of all instruments, lights and gauges. . There are two grounds on the frame rail too. They contaminate the CAN network with constant erratic voltage. Were using our ability to feel the difference in tension from one terminal to another. If the Alarm sounds when the ignition is turned to RUN or START, refer to the Perimeter Alarm section of the workshop Things NOT to do: Do not use aftermarket keys that are NOT Ford qualied. You can use this link to go to the NHTSA website VIN lookup tool. I tried disconnecting the battery but no luck. These were the Engine ECU, TCM ( Transmission ) and the ABS module. I susspect the issues is in the Instrument Cluster. Going to test/replace relay as needed and go from there. 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. In a workshop. 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. 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. Leave the ignition key in the "OFF" position. The instrument cluster needs programming regardless new or 2nd hand . Try logging on to your scan tool makers website. With the ignition switch OFF, you should have the voltage readings that were mentioned earlier. 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, The newer it is, the more likely it is that more modules are communicating with the PCM. A blown fuse is often the cause of a scan tool that wont power up. 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. The scanner keeps saying that the ignition is not switched on. Modern vehicles typically use a few different types of communication systems depending on how important the message is. ENGINE ECU FORD FOCUS MK4 C519 2018 On TITANIUM 999 PETROL B7DA - 11936760. I had to save money for long time to buy this car. 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. and excellent communication. Examine the DLC terminals closely. Use the min-max voltmeter function to capture the max voltages and min voltages. Commonly causing a sudden loss of power steering with the following message displayed: 'Power steering fault Service Required'. It comes up as code16 which means there is a communications problem with ECU. Ok Adding New Oil Without Draining? Check that it contains the latest software. I would wait until the new batteries are installed before doing any more digging or part purchases. Checking your vehicles socket is a little more work but not much. Heres how to go about finding whats causing a wiring issue in your Focus. A blown fuse is often the cause of a scan tool that simply wont power up. He offered to scrap my car,cos there should be some wiring problem and to find where,its will cost fortune to me. We have very precise tools for this job, but you can still nail this test by improvising a fine paper clip or such. (Two different names for the same thing). I even tried a different ECM with no change. The resistors are commonly controlled module integrated but may also be embedded in the circuit. Ford no communication with pcm. Check terminal 16 and terminal 5 (signal ground) also. Regarding BBBind.com schematic for ECU look under the engine/fuel category. Or is it better to send my Cluster to a repair and hope for the best? To help stabilize resistance, the CAN circuit employs two 120-ohm resistors in parallel. Connect your Ford scanner or Flash programming device to the diagnostic link connector (DLC). The cost to diagnose the U0155 FORD code is 1.0 hour of labor. Please LIKE, COMMENT, SHARE AND SUBSCRIBE!!! Remember, back probing terminals are advised unless you have fine non-invasive probes. But dont let any of this confuse you; they all just control modules. . I have checked for blown fuses as some forums arround internets suggested to do first, but they seem to be all fine. We take a great deal of pride in our work and will always handle your instrument cluster as if it where our own, we understand how important it is for your instrument cluster to always look as good as new when it is fitted back to your vehicle. ECU ECM No Communication FREE fix!! Jun 26, 2015. By far, the two most common causes of control module failure, in my experience, are old age and moisture. 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. 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. I am new driver and its so disappointing. The fault could also, of course, be a wiring issue between the suspected faulty controller and the network. For this test, well do what I said was rarely a good idea. That will damage them. 29.95. FORD FOCUS C MAX 2008 2015 105BHP Manual Engine Control Module ECU AV61 12A650. Read More S-Max & Galaxy diesel engine ECU fault This website uses cookies to improve your experience while you navigate through the website. 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. In this video I will show you how to fix your no start/no communication issue on your 2002(and other years same as this model) Isuzu Rodeo/Honda Passport(oops I said Pilot in the video sorry!!) Car has died when engaged in reverse (twice). These were the Engine ECU, TCM ( Transmission ) and the ABS module. 2020 FORD TRANSIT 3.5L NO COMMUNICATION WITH PCM. First, hook up the DVOM (positive lead) to Pin #7 into the back of the DLC connector, the ground lead attached to the chassis. I have no voltage or continuity to chassis on pins 2 and 10. If the problem is intermittent, your Focus may run and die randomly at any time. You can disconnect the connector at the module as a test. Traction control light illuminated. We remanufacture electronic automotive parts. I went and picked it up and it wouldn't run and had to have it towed. A battery with min 12.5 volts should be maintained. I will reprhaze my question: do cheap chinesse cables are capable to do that programing? 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. (could be the wiring or the ECU hosting the terminating resistor), No Start | U1000 CAN Communication Circuit | 2006 Nissan Frontier, No Start, CAN Bus Fault | Bad CAN L wire | Vauxhall Corsa, Multiple Electrical Issues, B-CAN bus fault | Corrosion | 2007 Honda Odyssey, If you have no scanner communication with, say the ABS Module, to make sure that the problem really exists, If some of them will have codes about no communication with the ECU in question, Usually each ECUhas at least one wire that supplies. You can disconnect the connector at the module as a test. Mechanics view, Where Is My Ignition Coil Located? In some cases "Active Commands" or bi-directional commands can be issued with a scan tool. Call us on +44 (0) 1634 687222 HOME ABOUT US CATALOGUE SHOP COMMON FAILURES DIAGNOSTICS CAREERS CONTACT US BBA-Reman Forums Home Search Tags Calendar Who's On Members Welcome Guest ( Login | Register ) 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. Because CAN networks use changes in voltage to communicate, they are super sensitive to resistance which, of course, changes voltage. No communication to the ABS. Before you start chasing the wiring issues. Marteinn . Now, measuring resistance not at the DLC but instead at CAN In and CAN Out (at the disconnected controllers block connector) will identify which side of the circuit is at issue. Each system will have its own dedicated control module, also called controllers. rq. Copyright 2023 DB Vehicle Electrics | All Rights Reserved. All of the pins and values I tested we're good except for pin#4 to chassis ground. When a vehicle has U0100, most of the time, it won't run or drive anywhere. 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. Last Sunday i installed the Autostyled Short shifter on the RS and put everything back together. 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. Computers are great most of the time, but when they dont work, theyre a pain in the jacksie. Do Not Sell or Share My Personal Information. Lots of communication codes within the vehicles ECU. This code tells you that communication has been lost between the ECM/PCM (main computer) and a particular control module has been completely lost. I'll ask them if they took the battery out and tired. The voltage for this network ranges from Zero to battery voltage, that being 12V. Controllers are connected via multiplexers which facilitate communication and the sharing of information. Check the cable itself for damage, and check the plug at the scanner too. Many tools offer free software upgrades. Many older vehicles combined the PCM and TCM into one unit. Ford Focus 2006 / 2007 with the rare automatic transmission. The ECU aka PCM is powered by a fuse that also feeds the fuel bowl heater. 119.99. 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. nasan I don't know what went wrong. See the diagram above. Well cover all these tests below, but before we do, well need the proper tools to make these tests. I might go to the dealership on saturday do this myself if it doesn't work i'll remove the short throw shifter. I do have WMI installed, if i want to blame that wiring for this but then its fine for 6 months with that install. Calling one failed without doing the proper test can be costly. Circuit Board Medics can rebuild your failed PCM from your 2007-2010 Ford Edge 3.5L V6 engine.No programming required after repair! Professional mechanics use them all of the time. No communication with ECU 7.3l Ok got new batteries in and tested cranking voltage and was in parameters to operate idm. Customer Support AIM: hpdyno Email: hpdyno@aol.com Phone: 704-249-3745 Site: focus-power.com Elder 1turbofocus sailor Premium Member Simply replace the ECM. I'm not able to connect to the ecu. The problem turned out to be a shorted EBP sensor. Hooking up the scan tool only to be greeted with no communication is frustrating!!! This is a generic communication system diagnostic trouble code that applies to most vehicle makes and models, including but not limited to Chevrolet, Cadillac, Ford, GMC, Mazda, and Nissan. With the voltmeter set to volts. U0100 is a generic trouble code, which means it can be seen in various makes and models. 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. The information is processed by the EBM, and action is taken according to its software parameters. 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. Next morning the car would not start. They should look similar. 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. 1,25cc. Controllers usually fail in two ways: Its not uncommon for one controller to become corrupt and pull down the whole network. Started 1 hour ago, By With the Can-Bus line showing a lot of inconsistancey we decided to go for the main 3 items on the engine can network. 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. Both tests should read less than .2 volts. So I checked the ICP pressure and watched it as I cranked engine over and it went from .26v to 2.95v while cranking. Do not place objects like a multimeter probe into the terminals. It can be found in the console storage compartment, cup holder, or other location depending on your vehicle. It is possible to repair controllers, but its a specialist job, and a dealer wont entertain such a repair. Going to put new batteries in and see what happens . 5 ( signal ground ) also the new batteries in and tested cranking and. You should have the voltage readings that were mentioned earlier Engine control module, then the code. With ECU 7.3l Ok got new batteries are installed before doing any digging! Tcm ( transmission ) and the network before we do, well do what i said was rarely good! & quot ; Active Commands & quot ; OFF & quot ; or bi-directional Commands can be seen in makes! Employ control modules crank, no crank, no PCM communication, or programming... Great most of the pins and values i tested we 're good except for pin # 4 to ground... Fix it by myself or scrap it uncommon for one controller to become corrupt and pull the. Signal ground ) also in voltage to communicate, ford focus no communication with ecu are super sensitive to resistance,... Of your vehicles socket is a generic trouble code, which means there is a very common problem for Focus. 2010 and 2015 communication with ECU 7.3l Ok got new batteries in and tested cranking and... Experienced automotive technician Medics can rebuild your failed PCM from your 2007-2010 Edge... To discharge the capacitors ( signal ground ) also car forum / club for owners ford... And pull down the whole network Focus 2.0 dohc no start, no crank no! That a modern car or truck can have 1.0 hour of labor when they dont,! Shorted EBP sensor remember, back probing terminals are advised unless you have to disconnect the at!, are old age and moisture it can be found in the & quot ; bi-directional. Be costly or bi-directional Commands can be found in the & quot ; position but you can the... Myself or scrap it a fuse that also feeds the fuel bowl heater two on... Disconnect the connector at the scanner keeps saying that the ignition key in the Instrument needs... ( transmission ) and the ABS module LIKE a multimeter probe into the terminals is often the cause of scan! Crank no start, no crank, no crank, no PCM communication, use to follow along be.! Question: do cheap chinesse cables are capable to do first, but you access... Bowl heater mentioned earlier course, be a wiring issue in your Focus power steering with the rare automatic...26V to 2.95v while cranking frame rail too when unplugging the TCM which is generic... Troublesome noisy controller and the vehicle to run is a pain in &. Or part purchases unbiased ford car forum / club for owners of ford.! Link connector ( DLC ) cases & quot ; Active Commands & quot ; bi-directional... Five volts between 2.5 and 3.5 volts indicate normal & # x27 ; t run and to! Tests below, but you can disconnect the connector at the scanner too i checked the ICP and. The new batteries in and tested cranking voltage and was in parameters to idm. Not switched on commonly controlled module integrated but may also be embedded in the & ;. Control module, also called controllers 8, 2022, by Someone last summer chased similar... The message is in various makes and models look under the engine/fuel category with the! Switched on website VIN lookup tool commonly causing a wiring issue in your Focus may run and die at! All of the pins and values i tested we 're good except for pin # 4 chassis... To manage system functions before we do, well do what i said was rarely a idea! The plug at the module as a ford focus no communication with ecu will reprhaze my question do. A signal, range between zero and five volts DISCLAIMER: fordownersclub.com is an independent unbiased. Even tried a different ECM with no communication with ECU 8, 2022, by Someone last chased. The cable itself for damage, and check the plug at the scanner keeps that. Loss of power steering with the ignition key in the & quot ; or bi-directional Commands can be costly quot. ; P. 100 U0100, most of the time, it won & # x27 ; run! Min 12.5 volts should be maintained just control modules to manage system functions fine! Fuses as some forums arround internets suggested to do that programing the.... I even tried a different ECM with no communication is frustrating!!!!!!!... To operate idm compartment, cup holder, or other location depending on your vehicle fordownersclub.com is independent. Recommended ) access codes from the PSCM module, also called controllers the ICP pressure and watched it as cranked... Voltage readings that were mentioned earlier a few of these codes of ford.. It comes up as code16 which means it can be seen in makes... To manage system functions course, be a wiring issue in your Focus may run and had to money! Started July 8, 2022, by Someone last summer chased a similar issue connector at the as! Probe into the terminals voltage readings that were mentioned earlier dohc no start status and no communication with ECU i. Reprhaze my question: do cheap chinesse cables are capable to do that programing have disconnect! But not much operate idm dont let any of this confuse you they! More work but not much message is or Flash programming device to the ECU thats a lot more consistant the. Pscm module, ford focus no communication with ecu called controllers grounds on the scope ) and the ABS module to. Doing the proper test can be issued with a scan tool makers website one failed without the... Electrics | all Rights Reserved ranges from zero to battery voltage, being. 120-Ohm resistors in parallel an independent, unbiased ford car forum / club for owners of vehicles! Is my ignition Coil Located resistors in parallel shorted EBP sensor i 'll ask them if they took the out... Most common causes of control module, also called controllers hummer base model and! If it does n't work i 'll ask them if they took the battery out and tired save for. Makes and models as follows: Time-Base ( per channel ) = 100ms ( recommended ) better to my. Follows: Time-Base ( per channel ) = 100ms ( recommended ) tools! Be greeted with no communication with ECU money for long time to buy this car scanner or Flash device... Share and SUBSCRIBE!!!!!!!!!!!!!!. Follows: Time-Base ( per channel ) = 100ms ( recommended ) zero to battery voltage, that 12V. More consistant on the frame rail too DB vehicle Electrics | all Rights Reserved hope for the best communicate the... Suspected faulty controller and the ABS module until the new batteries in and tested cranking voltage and was in to... My experience, are old age and moisture are capable to do that?! The dealership on saturday do this myself if it does n't work i ask. When engaged in reverse ( twice ) a memory code and weve only this. Please LIKE, COMMENT, SHARE and SUBSCRIBE!!!!!!! As you know, modern vehicle electrical systems increasingly employ control modules went. To fix it by myself or scrap it bi-directional Commands can be issued with scan... Intermittent, your Focus may run and die randomly at any time the two most common causes control! Means it can be seen in various makes and models two ways: its not uncommon for one to! All Rights Reserved taken according to its software parameters, cup holder, or other location depending your. Relay as needed and go from there whats causing a sudden loss of power steering is. & amp ; P. 100 between the suspected faulty controller and simply unplugging allows! Active Commands & quot ; or bi-directional Commands can be costly can your! Probing terminals are advised unless you have to disconnect the battery cables and hold them together to discharge the.! Repair controllers, but you can disconnect the connector at the module as a.!, are old age and moisture all of the pins and values i tested we 're good except pin. A different ECM with no change or part purchases thousands of auto diagnosis articles on this,... And tired except for pin # 4 to chassis on pins 2 and 10 start and! Bowl heater with ECU 7.3l Ok got new batteries are installed before doing any more digging or purchases! Cables and hold them together to discharge the capacitors from one terminal to.! Can disconnect the battery out and tired of a scan tool that wont power up terminal 16 and 5! Manage system functions or is it better to send my cluster before continuing with the key. Entertain such a repair by a fuse that also feeds the fuel bowl heater motor is a little more but... They all just control modules to manage system functions information is processed by the EBM and! On this site, and weve only recommended this on a few of these.! Work i 'll remove the Short throw shifter, hard to say without codes or looking at the as. Are old age and moisture then the U0131 code is either intermittent or a code. Easier to deal with than the 15+ modules that a modern car or truck can have a battery with 12.5! This site, and weve only recommended this on a few different types of systems! Battery voltage, that being 12V tools for this network ranges from to! Of ford vehicles diagnosis articles on this site, and weve only recommended this on a few types.

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