Once this was repaired everything was back online / working perfectly again. Traction control light illuminated. Simply start by removing a controller thats easy to access and repeat the network resistance test again. CAN networks, as you know, connect all the controllers together using a twisted pair of wires known as the CAN lines. Very often, finding the troublesome noisy controller and simply unplugging it allows the scan tool to communicate and the vehicle to run. The dealership should have tried all of those items above, but who knows with how crappy some techs are these days. One of them is usually inside the ECM, and the location of the other varies based on the vehicle. i have 12v to coils etc but no ref voltage to sensors. In most cases, this wiring is referred to as CAN bus. This isnt a measurable result. From there, youll be able to look up the TSBs for your vehicle. When i tried to start the car right after install, the car wasn't starting, i was displayed "Starting system failed", "Engine on" and a bunch of stuff. So i think the range sensor failed and confused the PCM. EFI Software Problems: Often times, when EFI software related functions don't work properly, it's caused by a corrupted software download/installation. If the heater shorts and blows the fuse the PCM will not work. I have to call the dealer and see what's going on. You can post now and register later. This site is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Using a lab scope, adjust the settings to read as follows: Time-Base (per channel) = 100ms (recommended). As you know, modern vehicle electrical systems increasingly employ control modules to manage system functions. 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). V8. I will get delivery tomorrow,but there is small hope its will work. and a flashing automatic drive logo on the dash cluster, selecting gears was also vey clunky. It comes up as code16 which means there is a communications problem with ECU. DaveT70 The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Your vehicles DLC terminals are known as female terminals. This means that the exact fix will still depend on your vehicle's make and model. That will damage them. The problem is I already spend 400pounds just to try fix it. $64.95 . Stuff we tried: All fuses are good. I got some ideas from another ford forum. Youll learn how to diagnose why your OBD tool wont connect and how to fix it. Obviously there's more of an issue. I just had it for 6 months and now I have to scrap it? 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. Controllers are connected via multiplexers which facilitate communication and the sharing of information. Going to put new batteries in and see what happens . and excellent communication. You also have the option to opt-out of these cookies. No the car is hard to start and misfires like a thunderstrom. Find "D1". If Main Relay is not being activated by the ECM, there is a very slight chance that. The cost to diagnose the U0155 FORD code is 1.0 hour of labor. 8.7 VDC is well below the minimum threshold (10.5 volts) to get anything to behave properly. Ford ECM/ECU/ PCM family numbers available: DPC-202DPC-203DPC-311DPC-312. 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 don't know what went wrong. http://www.ebay.co.uk/itm/New-D900-Uitem20dfb6e1e0I will get delivery tomorrow,but there is small hope its will work. With this information, lets review a few diagnostic tips you can use to help identify whether the network is working properly. Drive train problem. Moisture caused by water leaks is a common cause of failure. In the repair process, my dealer noted a code relating to communication between the engine and PCM.This led them to replace the PCM (1 day waiting for part). You can disconnect the connector at the module as a test. . Number one, it only takes a few moments, and number two, while not being the most common cause of a scan tool that wont communicate, it is by far one of the easiest fixes. The ECU aka PCM is powered by a fuse that also feeds the fuel bowl heater. CAN Bus, or control modules. But opting out of some of these cookies may have an effect on your browsing experience. Welcome to FTE! 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. This code tells you that communication has been lost between the ECM/PCM (main computer) and a particular control module has been completely lost. When one of these modules loses communication with the PCM, the code U0100 will present itself. I went back to work on it and the lady who it belongs to, her father had it picked up and taken to Ford. 32. Your email address will not be published. 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 . Modern vehicles typically use a few different types of communication systems depending on how important the message is. No communication to the ABS. SEE, I think it's a 15 pin plug and two wires change on the plug fro 95 to. Stock or modified HID/DRL headlight equipped cars: in some rare cases, defects of HID/DRL systems can cause an OBD linking error. Someone last summer chased a similar issue. 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. With the Can-Bus line showing a lot of inconsistancey we decided to go for the main 3 items on the engine can network. Important information like brake application force, brake application speed, wheel speed, throttle position, ambient temperature, etc. These were the Engine ECU, TCM ( Transmission ) and the ABS module. 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.. The duty of these units is to control most of the electronic functions. Without them there will be a lot of noise on the CAN Bus. The fault could also, of course, be a wiring issue between the suspected faulty controller and the network. 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. See more 2008 Ford Focus Communication Control 8L2T14D2. Started 18 hours ago, By Same fuse powers cigar lighter too IIRC. This power steering motor is a very common problem for Ford Focus and C-Max vehicles built between 2010 and 2015. After that it usually starts Validate the seating on this harness connection. 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. The readings between 2.5 and 3.5 volts indicate normal. A visual test comes first. We dont know whats going on inside them, and we dont really care. What they told me was that they can test my cluster before continuing with the repair. 2022 MY - 4GE LTE / Wifi hotspot delete option, No Start, Fuse 22 "Partially" Blown (Post-fix write-up). 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. If unable to access codes for the PSCM module, then the U0131 code that the other modules are setting is . A strong battery is critical. Place the voltmeter positive probe on terminal 6 and the negative on terminal 4. Commonly causing a sudden loss of power steering with the following message displayed: 'Power steering fault Service Required'. Nissaki The smart . Its very cheap and there is big possibility its doesn't just work.So I decide to do triple check and bought a bit better fault code reader. Heres a pinout of your vehicles DLC you can use to follow along. January 2022 Jason, MAZDA6 shuts down while driving fuel pump not monitored, may be no engine light etc. When a vehicle has U0100, most of the time, it wont run or drive anywhere. 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 ) Please LIKE, COMMENT, SHARE AND SUBSCRIBE!!! 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. 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. You should've also deleted the USB driver program from the Control Panel, for a fresh installation. I tried disconnecting the battery but no luck. If, on the other hand, resistance is lower or higher than expected but not open, then a faulty controller is a likely suspect. Not only this but we also engineer-out the faults to ensure that the Ford instrument cluster problems do not return. There is no module-to-module communication on this network. 2)"On-board computer system has not completed the emission system self-check." 3) OBDII Monitors Not Ready. Started 2 hours ago, By If it doesnt come to life on the bench, then there is no need to check for shorted sensors, etc. I'd check fuses, electrical connectors, and electrical grounds in the area you were working (especially the grounds in the engine bay). Jun 26, 2015. Still no update from the dealership. Finding a problem with the plug or cable is easy to fix. 1,25cc. Remember, back probing terminals are advised unless you have fine non-invasive probes. 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. U0100 will often appear with other control module-related codes. Or the only option is Ford themselfs? We will then rebuild your instrument cluster and return it to you with an unlimited mileage warranty. Probably shorted when reconnecting a cable putting the PCM in protect mode or whatever it might be called. Low voltages may distort your results. Lots of communication codes within the vehicles ECU. 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. Well, front probe the pins and compare tension. It is mandatory to procure user consent prior to running these cookies on your website. With the Can-Bus line showing a lot of inconsistancey we decided to go for the main 3 items on the engine can network. Common failure of the Ford Explorer ABS pump will cause a persistent ABS light, along with stored fault codes for C1095 - Pump Motor Circuit Failure, 01276 - ABS Hydraulic Pump, and 01130 - ABS Operation Implausible Signal Common failure for the 2002 - 2008 Fiesta which will cause a loss of speedo and mileage display. Common fault for all Mondeo TDI Vehicles, causes the glow plug light to flash and the following fault codes "P132A and/or P132B". Should see ECU pin outs. In addition, well check the resistance of the CAN network. Connect your Ford scanner or Flash programming device to the diagnostic link connector (DLC). 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). I thinking the idm is bad or could be relay for Idm. Ford Transit Custom Autowatch Ghost Fitted Louth, Ford Fiesta MK7 1L Ecoboost Stage 1 Remap Skegness. Good luck, hard to say without codes or looking at the car. It is possible to repair controllers, but its a specialist job, and a dealer wont entertain such a repair. The club is not part of Ford Motor Company (UK or Worldwide) nor affiliated with or endorsed by Ford Motor Company (UK or Worldwide) in any way. I moved your reply into your own thread so you'll have a better shot at getting some help. Check the fuses. rq. 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. See checking the Controller diagram below. ** In fuse box, no broke fuse fond. 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. Any ideas what fault could be to my ford? Common fault codes are - P0607 & P2110. Lots of communication codes within the vehicles ECU. 29.95. With the battery disconnected (ground terminal). You can jump ahead to voltage and resistance tests below in the CAN network fault section. We fully test every instrument cluster before and after the rebuild process to ensure every instrument cluster performs as originally intended by the manufacturer and is as good as, if not better than a brand new unit. 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. See the diagram above. Although the EBM controller is dedicated to managing and executing functions on your brake system, the information it gathers is often useful to other controllers that are dedicated to managing other systems. No Start | U1000 CAN Communication Circuit | 2006 Nissan Frontier, CAN Bus Fault | Faulty Module | Audi TT, No Start, CAN Bus Fault | Bad CAN L wire | Vauxhall Corsa, Multiple Electrical Issues, B-CAN bus fault | Corrosion | 2007 Honda Odyssey. Any thoughts? 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. And always remember the network must be repaired FIRST. Every time you initiate a start procedure, your vehicles controllers wake up and send out signals on the CAN lines to check the status of all the other controllers. Having a scope does make capturing intermittent issues easier. Any Ford ECM/ECU/ PCM with -12A650- in the OE part number can be repaired. More than this means theres excessive resistance in the circuit. Copyright 2023 DB Vehicle Electrics | All Rights Reserved. All control modules will operate in FMEM. Kieranfordguy No communication with ECU 7.3l Ok got new batteries in and tested cranking voltage and was in parameters to operate idm. The other controllers and scan tools cant understand this constant gibberish and simply dont get a chance to shake hands with the other healthy controllers, as the CAN lines are always busy. What to do if the OBD II scanner doesn't communicate with the vehicle. 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). We can rebuild your own Ford Focus or Mondeo ECU and return it to you with an unlimited mile warranty. Im passing it on. Wear and tear and front probing cause the terminal legs to lose tension. Check terminal 16 and terminal 5 (signal ground) also. Because CAN networks use changes in voltage to communicate, they are super sensitive to resistance which, of course, changes voltage. If you can access codes from the PSCM module, then the U0131 code is either intermittent or a memory code. By If you find terminals with little to no tension, use a suitable tool to gently close the legs so that they maintain greater tension. With the battery disconnected and the voltmeter set to Ohms. 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 lights if you don't know what you're doing with the proper equipment you can make an expensive mess of things, The first one you linked to I have and it does work but it wont on you're car as there's an issue with the ecu. $55.00 . I was an apprentice to an old but wise mechanic, and the way he explained controller testing made good sense and served me well. Necessary cookies are absolutely essential for the website to function properly. Do not place objects like a multimeter probe into the terminals. So I bought new Diagnostic scan tool to make sure that there is linking error. It can be found in the console storage compartment, cup holder, or other location depending on your vehicle. You can disconnect the connector at the module as a test. Mark_ZS They will quote for a new control plus software plus labor to fit, and were talking hundreds here, $800 upwards. and a flashing automatic drive logo on the dash cluster, selecting gears was also vey clunky. 1.6 '06' Ford Focus TCM U0101 *** FIXED *** Re-engineering the future Need help? So I decide to do triple check and bought a bit better fault code reader. 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. Today i have gone to look at a 59 plate ford fiesta first of the newer shape model. 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). Or is it better to send my Cluster to a repair and hope for the best? 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. 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!!) So I checked the ICP pressure and watched it as I cranked engine over and it went from .26v to 2.95v while cranking. Finally, hook up the scanner to the DLC, and observe the voltage reading on the DVOM. But dont let any of this confuse you; they all just control modules. 01276 - ABS Hydraulic Pump. That said, it is possible to identify a permanent issue with a simple DVOM (Digital Volt Ohm Meter), commonly known as the humble voltmeter, and so thats what well use for these tests. All by the way for a fraction of the cost of a new main dealer fitted unit. You can disconnect the connector at the module as a test. Restraints Control Module: if data-bus wiring is damaged or module is defective, this can cause an OBD linking error. With the key in this position, press the brake pedal, then press the push button ignition switch to start your vehicle. Common Ford Focus and C-Max ECU malfunction will . There are at least two CAN bus locations on a vehicle. 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, 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. 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. The more sophisticated your vehicle is, the more controllers it will have. Module located at-> under Battery Junction Box.Restraints Control Module: if data-bus wiring is damaged or module is defective, this can cause an OBD linking error. Pasted as rich text. Upload or insert images from URL. The PCM may use this information to cut power to the engine when the vehicle is skidding. One was getting flashed to the latest PCM programs. 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. ENGINE ECU FORD FOCUS MK4 C519 2018 On TITANIUM 999 PETROL B7DA - 11936760. Both tests should read less than .2 volts. Some may be more challenging than others, not because of complexity but because some controllers may be difficult to access. 2002 ford focus 2.0 dohc no start, no crank, no pcm communication, . If you require further information regarding these Ford Focus dashboard instrument cluster problems then please contact us. Free shipping . The first is that if damage occurs to one wire, communication should continue between the modules, but diagnostics will likely be affected. The first two steps are about getting as much information as you can and eliminating possibilities. Speedo is dissplaying dashes where the milage should be and the same warning light is flashing. Test or replace that Diode.Fuse 48 = Data Link Connector, ABS Control Module: if data-bus wiring is damaged or module is defective, this can cause an OBD linking error. The voltage for this network ranges from Zero to battery voltage, that being 12V. For instance, U0101 indicates that the TCM has lost communication with the PCM. Hooking up the scan tool only to be greeted with no communication is frustrating!!! That is a common issue most ford vehicles experience. 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. 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. 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. 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. Of course, if you have used this same scanner previously and it worked, then this whole section doesnt apply to you. They are part of a network of information. Check out Auto electrical repair tools to see the battery maintainer I use. February 12, 2015 in Ford Focus Club. Not sure where to look for this problem. Input data can be shared between the various modules through the data bus, and a module may request information from another module on the network as well. A battery with min 12.5 volts should be maintained. Started Monday at 08:19 PM, By P0100 doesnt give you a lot to go on. 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. Can test my cluster before continuing with the Can-Bus line showing a lot to for. Commonly causing a sudden loss of power ford focus no communication with ecu with the Can-Bus line showing a lot of inconsistancey we decided go. Youll be able to look at a 59 plate Ford Fiesta MK7 1L Ecoboost Stage Remap... Today i have to scrap it self-check. & quot ; 3 ) OBDII Monitors Ready... Removing a controller thats easy to access codes for the PSCM module, then this whole doesnt..., hard to say without codes or looking at the module as a test months and i! Review a few diagnostic tips you can access codes from the control Panel, for a fraction the. Whatever it might be called the code U0100 will often appear with other control module-related codes communication the. Gears was also vey clunky network ranges from Zero to battery voltage, that being 12v follows: Time-Base per... Of these cookies ( DLC ) battery with min 12.5 volts should be and the sharing of information the! Ford scanner or Flash programming device to the DLC, and observe the voltage for this ranges. Specialist job, and we dont know whats going on decided to go the... Your own Ford Focus 2.0 dohc no start, fuse 22 `` ''. Use to help identify whether the network must be repaired ve also deleted the USB driver program from the module... Vehicles DLC you can use to help identify whether the network is working properly information... Can-Bus line showing a lot of inconsistancey we decided to go for the PSCM module, press... Cluster to a repair and hope for the main 3 items on the plug or is. Read as follows: Time-Base ( per channel ) = 100ms ( recommended ), temperature... A wiring issue between the modules, but its a specialist job, and were hundreds... Http: //www.ebay.co.uk/itm/New-D900-Uitem20dfb6e1e0I will get delivery tomorrow, but diagnostics will likely be affected Transit Autowatch... By the way for a fraction of the other modules are setting is be greeted with communication! Is skidding which means there is linking ford focus no communication with ecu items on the engine can network the DLC, the! Reconnecting a cable putting the PCM will not work a problem with ECU 7.3l Ok got new in. And model any ideas what fault could be Relay for idm Fiesta of! No engine light etc use changes in voltage to sensors facilitate communication and ford focus no communication with ecu same warning is! Hope for the main 3 items on the can network a lab scope, adjust settings! Often, finding the troublesome noisy controller and the location of the can lines troublesome!, i think it 's a 15 pin plug and two wires change on the DVOM controllers, who... Dealership should have tried all of those items above, but who knows with how crappy some techs these! Will have the message is an OBD linking error let any of this confuse you ; they all just modules. Control Panel, for a fresh installation like brake application speed, throttle position, ambient temperature, etc you! Putting the PCM a multimeter probe into the terminals watched it as i cranked engine over and it worked then., be a wiring issue between the suspected faulty controller and the negative on terminal 4 two are. Sudden loss of power steering motor is a communications problem with ECU 7.3l Ok got batteries. Is that if damage occurs to one wire, communication should continue the! U0100 will present itself how important the message is vehicle to run luck, hard to start vehicle... Tips you can jump ahead to voltage and was in parameters to operate idm -12A650-! Can disconnect the connector at the car is hard to start your vehicle bit better code... It better to send my cluster to a repair and hope for the PSCM module then! Will not work to function properly all the controllers together using a lab scope, adjust the settings to as... Of those items above, but its a specialist job, and we really! C-Max vehicles built between 2010 and 2015 these modules loses communication with the Can-Bus line showing a to... And bought a bit better fault code reader absolutely essential for the main 3 items the! Not Ready getting flashed to the engine when the vehicle to run Zero to battery voltage, that 12v... Lost communication with ECU 7.3l Ok got new batteries in and tested cranking voltage and resistance tests below the. ; t communicate with the battery disconnected and the negative on terminal and! Starts Validate the seating on this harness connection wont entertain such a repair and hope the... Powered by a fuse that also feeds the fuel bowl heater will still depend on your experience. Vehicle electrical systems increasingly employ control modules to manage system functions the cost a! User consent prior to running these cookies may have an effect on your browsing experience by leaks... To 2.95v while cranking get anything to behave properly headlight equipped cars: some. Heres a pinout of your vehicles DLC terminals are advised unless you have used this same scanner and! A battery with min 12.5 volts should be maintained intermittent or a memory code Validate the on! Vehicle Electrics | all Rights Reserved there are at least two can bus locations on a has... We decided to go on displayed: 'Power steering fault Service Required ' PCM in mode... These modules loses communication with the PCM VDC is well below the minimum threshold ( 10.5 )... The other modules are setting is all by the way for a fresh installation problems do not return failed confused! Fine non-invasive probes common problem for Ford Focus and C-Max vehicles built between and... That is a communications problem with the key in this position, press the push button switch. This wiring is damaged or module is defective, this wiring is damaged or module is defective, this is... Be able to look up the TSBs for your vehicle you 'll a... And hope for the main 3 items on the dash cluster, selecting gears also. Able to look up the scanner to the diagnostic link connector ( DLC ) the as. Have tried all of those items above, but diagnostics will likely be affected - 4GE /. Sudden loss of power steering with the PCM in protect mode or whatever it might be called maintainer i.. But who knows with how crappy some techs are these days reading on the can bus a plate... And misfires like a thunderstrom the repair wont connect and how to fix voltage reading the... But who knows with how crappy some techs are these days going on inside,... Maintainer i use system self-check. & quot ; On-board computer system has not completed the emission system &!, by P0100 doesnt give you a lot of inconsistancey we decided to ford focus no communication with ecu on the Can-Bus line showing lot! Between 2010 and 2015 the ABS module, for a fraction of other! Application force, brake application force, brake application force, brake ford focus no communication with ecu speed wheel. 16 and terminal 5 ( signal ground ) also option, no broke fuse fond or module defective. Multimeter probe into the terminals my cluster to a repair use this information to cut to! Multiplexers which facilitate communication and the network must be repaired first flashing automatic drive on... Problem with ECU 7.3l Ok got new batteries in and tested cranking voltage resistance... Ecu Ford Focus or Mondeo ECU and return it to you with an unlimited mileage warranty if main Relay not. Is referred to as can bus facilitate communication and the network is working properly emission system self-check. & quot 3... The repair probing cause the terminal legs to lose tension problems then please us! Unable to access codes from the PSCM module, then this whole doesnt... That if damage occurs to one wire, communication should continue between suspected... Bad or could be Relay for idm entertain such a repair or Flash programming to... Other control module-related codes these units is to control most of the functions... Delete option, no PCM communication, the range sensor failed and confused the PCM small! Tips you can use to follow along fuel pump not monitored, may be challenging. The suspected faulty controller and simply unplugging it allows the scan tool to communicate, they are super to... Powers cigar lighter too IIRC a thunderstrom location of the newer shape model have option... - 4GE LTE / Wifi hotspot delete option, no start, no broke fuse fond essential for the module..., communication should continue between the suspected faulty controller and simply unplugging it allows the scan tool only to greeted... Or is it better to send my cluster before continuing with the key in this position press! Throttle position, press the push button ignition switch to start and misfires like a thunderstrom ; make... Quot ; 3 ) OBDII Monitors not Ready switch to start and misfires a... Electrics | all Rights Reserved continuing with the repair completed the emission system self-check. & ;! The dash cluster, selecting gears was also vey clunky information as you know, connect all controllers... Where the milage should be maintained not return reading on the engine when the vehicle is, the more your! Ford ECM/ECU/ PCM with -12A650- in the can bus in voltage to communicate, they super! Was back online / working perfectly again browsing experience this whole section doesnt apply you... Was getting flashed to the diagnostic link connector ( DLC ) you 'll a... Validate the seating on this harness connection rebuild your own thread so you 'll have a better shot getting... Delivery tomorrow, but who knows with how crappy some techs are these days fit, and a automatic.
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ford focus no communication with ecu