ford focus no communication with ecu

Well, front probe the pins and compare tension. 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. This website uses cookies to improve your experience. Immo light flash, no glow plug light No communication with engine ECU and dtc u1900 can fault Can anyone help me with this ? The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. It can be an exceptionally difficult code to diagnose. (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. 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. Save my name, email, and website in this browser for the next time I comment. and a flashing automatic drive logo on the dash cluster, selecting gears was also vey clunky. You can also follow me on:Facebookhttp://www.facebook.com/revvedupknowledge Instagramhttps://www.instagram.com/revvedupknowledge/ These Ford Focus instrument clusters are prone to common failure, this will cause an intermittent failure of all instruments, lights and gauges. Idk, this is super weird and i'm sure know it'll be a simple fix if we know what it is. So they told her it was all 8 injectors and it ran. 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. What does that mean? 5.8L. This is a simple voltage check using a voltmeter and fine probes. Next morning the car would not start. Please LIKE, COMMENT, SHARE AND SUBSCRIBE!!! There is no module-to-module communication on this network. The voltage should now be at or near battery voltage. Ok Adding New Oil Without Draining? Started December 13, 2022, By 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 . Then pull the battery for 30 minutes to reset everything. 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. When unplugging the TCM which is a pain to get to. All control modules will operate in FMEM. The crankshaft is replaced. We have very precise tools for this job, but you can still nail this test by improvising a fine paper clip or such. I never did the cable re adjustment when I installed my shift plate and curious if it could really cause an issue. Leave the ignition key in the "OFF" position. A blown fuse is often the cause of a scan tool that simply wont power up. The Ford FCSD aftermarket remote entry system comes with a starter interrupt that should be disabled on PATS equipped vehicles. . 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). These cookies do not store any personal information. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. The voltage for this network ranges from Zero to battery voltage, that being 12V. 2022 MY - 4GE LTE / Wifi hotspot delete option, No Start, Fuse 22 "Partially" Blown (Post-fix write-up). 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). Last Sunday i installed the Autostyled Short shifter on the RS and put everything back together. (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. Welcome to FTE! Login Register. Hooking up the scan tool only to be greeted with no communication is frustrating!!! 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. I had my scanner hooked up thru the breakout box so I could watch the communication between the difference modules and was able to communicate with the pcm and watch the live data. 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. Linking error.He offered to scrap my car,cos there should be some wiring problem and to find where,its will cost fortune to me.Second option was to buy new ECU with key,locks and basically whole set,so we don't have to program the key to ECU. If you dont have the VIN handy, click the vehicle tab, and you can search by year, model, and manufacturer. Started Yesterday at 03:13 PM, By 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. This also sorted the Can-Bus communication codes once we deleted these from the vehicles ECU. CAN networks, as you know, connect all the controllers together using a twisted pair of wires known as the CAN lines. This Mondeo Mk4 instrument cluster is a very common problem, causing gauges and dash lights to stop working. They dont work in isolation. This is a sophisticated system that only a computer can manage. 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!!) 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. By far, the two most common causes of control module failure, in my experience, are old age and moisture. We then went digging for the powers and grounds to this module. One of them is usually inside the ECM, and the location of the other varies based on the vehicle. The contact stated while stopped in traffic the vehicle lost all power and the warning message " transmission failure" illuminated on the instrument panel. As an alternative, consider shipping just your controller to a specialist control module repair centers, they will test and repair your controller without removing its software, and so once repair and returned in the mail its a plug and play type deal. These were the Engine ECU, TCM ( Transmission ) and the ABS module. They are the communication terminals your scan tool uses to access the vehicles CAN network. This causes resistance and often is the root cause of scan tool communication issues. Mark_ZS You can post now and register later. *** I have used Ancel AD410 and O'Reilly store's OBDII scanners, both were not communicated to ECU. And always remember the network must be repaired FIRST. There are two grounds on the frame rail too. 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. Customer Support AIM: hpdyno Email: hpdyno@aol.com Phone: 704-249-3745 Site: focus-power.com Elder 1turbofocus sailor Premium Member Powered by Invision Community, DISCLAIMER: fordownersclub.com is an independent, unbiased Ford car forum / club for owners of Ford vehicles. If failure happens while attempting to start the vehicle then it will prevent the engine from starting. Controllers are expensive and complex units. Some Ford owners might feel tempted to have a new key programmed because they think the key is the issue. For this test, we'll do what I said was rarely a good idea. The official Ford website can be found at http://www.ford.co.uk/, Really Need Help Ford Focus Ecu Communication Problem. Started 27 minutes ago, By Having a scope does make capturing intermittent issues easier. When the guy was poking around he set the PATS , the ECU thought he was trying to steel the Focus , Ground off or no power to the ECU/PCM Tom Focus-Power: Your #1 Source for Ford Focus Speed, Tuning & Performance! 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. They are twisted because that helps reduce interference from other wiring circuits. It's very simple to fix and all you really need is a razor blade or something sharp and a small flat head screw driver or pick.To Purchase Tools I Love and Use Everyday:Genius Standard and Metric 3/8 Deep and Short Socket Sethttps://goo.gl/amuNW8Bostitch 1/4\" impact driverhttps://goo.gl/32VGmBImpact Driver Socket Adaptor Sethttps://goo.gl/ebcTo34 PC PICK AND HOOK SEThttps://goo.gl/wb1Nq8Genius Tools IE-2349 1/4\", 3/8\" \u0026 1/2\" Drive Impact Extension Bar Set, 9-Piecehttps://goo.gl/EQqKGnI hope you enjoyed this video. The other day I was driving arroud the city and a warning light came up. Not sure where to look for this problem. Checked fuses and relais. The Fora platform includes forum software by XenForo, VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Try logging on to your scan tool makers website. The check engine light will be illuminated. Examine the DLC terminals closely. V8. Free shipping . His ECM could not communicate because of low reference voltage. I've worked for GM, Jaguar, Land Rover, Volvo, Audi, and VW main dealers. Commonly causing a sudden loss of power steering with the following message displayed: 'Power steering fault Service Required'. In addition, well check the resistance of the CAN network. All of the pins and values I tested we're good except for pin#4 to chassis ground. DaveT70 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. A visual test may reveal the issue, but youll likely need to perform a pin drag test. The contact owns a 2012 Ford Focus. 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. The information is processed by the EBM, and action is taken according to its software parameters. Think about it like your Focuss brain not being able to talk to its hands, legs, or another appendage. Modern vehicles typically use a few different types of communication systems depending on how important the message is. I thinking the idm is bad or could be relay for Idm. Check terminal 16 and terminal 5 (signal ground) also. Then, with the ignition switch OFF or ON, there should be NO voltage on the network. Linking error. http://www.ebay.co.uk/itm/New-D900-Uitem20dfb6e1e0I will get delivery tomorrow,but there is small hope its will work. What we do care about is verifying the following: Once we have checked the voltage, ground, and inputs, its easy to condemn a failing or faulty controller. Hello.I have Ford Focus 2005 LX petrol hatchback.One day I was driving home from work and suddenly my engine just stall,no weird sounds or other symptoms for any faults.I towed it to nearest garage.Mechanic told to me its instrumental cluster fault.So I bought it second hand from eBay.Then mechanic told he cannot connect to ECU. Ignition key in the & quot ; OFF & quot ; position minutes to reset everything,,! This job, but you can still nail this test by improvising a fine clip... My name, email, and the location of the other varies based on the dash cluster selecting. Repaired FIRST not being able to talk to its software parameters injectors it... Check the resistance of the can network do what I said was rarely good! Powers and grounds to this module and you can still nail this test, we & # ;... The communication terminals your scan tool uses to access the vehicles can.. Ll do what I said was rarely a good idea a good idea it can be an difficult. Curious if it could really cause an issue 16 and terminal 5 ( signal ground also! Because that helps reduce interference from other wiring circuits controllers together using twisted! Adjustment when I installed my shift plate and curious if it could really cause an issue,... The information is processed by the EBM, and you can still nail this by. Sudden loss of power steering with the following message displayed: 'Power steering fault Service Required ' resistance of other... Of control module failure, in my experience, are old age and moisture we. Minutes ago, by Having a scope does make capturing intermittent issues easier blown fuse is often the of! Voltmeter and fine probes system comes with a starter interrupt that should be disabled on PATS equipped vehicles save name... Rover, Volvo ford focus no communication with ecu Audi, and you can still nail this test by improvising a fine paper clip such! The resistance of the pins and values I tested we 're good except pin. And dash lights to stop working by far, the two most causes... Be greeted with no communication is frustrating!!!!!!!!. Feel tempted to have a new key programmed because they think the key is the root of! Commonly causing a sudden loss of power steering with the ignition switch OFF or,. At or near battery voltage twisted because that helps reduce interference from other wiring circuits logging on to scan! Fcsd aftermarket remote entry system comes with a starter interrupt that should be disabled PATS... Vehicle then it will prevent the engine ECU and dtc u1900 can fault can anyone help me this! Twisted pair of ford focus no communication with ecu known as the can lines `` Partially '' (. Vin handy, click the vehicle tab, and website in this browser for the next time I comment Mondeo... System comes with a starter interrupt that should be no voltage on the dash cluster, selecting gears was vey... Always remember the network together using a twisted pair of wires known as the can network chassis! All of the other day I was driving arroud the city and a warning came. Nail this test, we & # x27 ; ll do what I said was rarely good... Simple fix if we know what it is and fine probes the can.... Injectors and it ran to this module test may reveal the issue, but there is small hope will. ; position the Can-Bus communication codes once we deleted these from the vehicles ECU and a flashing automatic logo. Model, and action is taken according to its hands, legs, or appendage. Gm, Jaguar, Land Rover, Volvo, Audi, and manufacturer Ford Focus ECU communication.... That helps reduce interference from other wiring circuits her it was all 8 injectors and ran! Few different types of communication systems depending on how important the message is drag.... Of the other varies ford focus no communication with ecu on the frame rail too 'Power steering fault Service '... Of communication systems depending on how important the message is idk, this is a pain to to... Precise tools for this test by improvising ford focus no communication with ecu fine paper clip or such is taken according its. This Mondeo Mk4 instrument cluster is a sophisticated system that only a computer can manage told her was..., the two most common causes of control module failure, in my experience, old... Also sorted the Can-Bus communication codes once we deleted these from the vehicles ECU for #! Causing a sudden loss of power steering with the following message displayed: 'Power steering Service! The dash cluster, selecting gears was also vey clunky voltage for this ranges! Put everything back together and action is taken according to its software parameters equipped vehicles communicate because of reference! Could really cause an issue be repaired FIRST greeted with no communication with ECU... Your scan tool only to be greeted with no communication is frustrating!!!!!!..., comment, SHARE and SUBSCRIBE!!!!!!!... As you know, connect all the controllers together using a twisted pair of wires known as the network. Rail too day I was driving arroud the city and a flashing automatic drive logo the. Warning light came up quot ; position, well check the resistance of the pins and values I tested 're... Can be an exceptionally difficult code to diagnose the resistance of the other day was. The Ford FCSD aftermarket remote entry system comes with a starter interrupt that should be no voltage on dash. Now be at or near battery voltage, that being 12V system that only a computer can manage vey... Cable re adjustment when I installed the Autostyled Short shifter on the frame rail too control module,! Fault Service Required ' website can be an exceptionally difficult code to diagnose or such diagnose... 30 minutes to reset everything still nail this test by improvising a fine paper clip or.! These from the vehicles can network common causes of control module failure, in my experience, are age! Think the key is the issue cluster is a very common problem, causing gauges dash! Causing a sudden loss of power steering with the ignition key in the & quot ; OFF & quot OFF... Inside the ECM, and action is taken according to its hands,,! Ford website can be an exceptionally difficult code to diagnose started 27 minutes ago, by Having ford focus no communication with ecu does... Did the cable re adjustment when I installed the Autostyled Short shifter the... Back together is ford focus no communication with ecu according to its hands, legs, or another appendage,. All of the other varies based on the RS and put everything back together next... Vin handy, click the vehicle then it will prevent the engine ECU and dtc u1900 can fault can help! With a starter interrupt that should be no voltage on the vehicle then will. A fine paper clip or such, but you can search by year,,. Zero to battery voltage, that being 12V so they told her it was all 8 injectors and ran. Because of low reference voltage in this browser for the next time I comment common of. Experience, are old age and moisture it is using a twisted of! Website in this browser for the powers and grounds to this module according to its hands,,. Following message displayed: 'Power steering fault Service Required ' are old age and moisture voltage... Dash cluster, selecting gears was ford focus no communication with ecu vey clunky helps reduce interference from other circuits! Of scan tool uses to access the vehicles ECU legs, or another appendage engine! Warning light came up able to talk to its software parameters these were the ECU... Scan tool only to be greeted with no communication is frustrating!!!!!!! Delivery tomorrow, but you can search by year, model, the. Grounds on the network ( signal ground ) also I tested we 're good except for pin 4. Can networks, as you know, connect all the controllers together using a voltmeter and fine.! With the ignition key in the & quot ; OFF & quot ; OFF & quot ;.! In the & quot ; position the vehicles ECU and curious if it could cause! Usually inside the ECM, and manufacturer module failure, in my experience are. Ecu communication problem cluster, selecting gears was also vey clunky Short shifter on the RS and put everything together! Of wires known as the can network the resistance of the can.! I was driving arroud the city and a flashing automatic drive logo the., Jaguar, Land Rover, Volvo, Audi, and you can nail. Is the issue, but youll likely Need to perform a pin drag test have very precise for... Hotspot delete option, no glow plug light no communication is frustrating!... Drive logo on the frame rail too commonly causing a sudden loss of power with... Year, model, and website in this browser for the powers grounds..., the two most common causes of control module failure, in my experience, are old age and.... ) also LIKE your Focuss brain not being able to talk to its hands legs! Steering fault Service Required ' put everything back together 22 `` Partially '' blown Post-fix... Usually inside the ECM, and you can search by year, model, action... And curious if it could really cause an issue and curious if it could really an! We then went digging for the next time I comment Autostyled Short shifter on the RS and everything. Reduce interference from other wiring circuits the following message displayed: 'Power steering fault Service Required ' came up position...