If the instrument cluster fails while driving, then this will often cause the engine to cut out. 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. The vehicle was towed to the dealer and they stated that the tcm module needed to be replaced. Ok Adding New Oil Without Draining? Check terminal 16 and terminal 5 (signal ground) also. ABS Control Module: if data-bus wiring is damaged or module is defective, this can cause an OBD linking error. Im aRed Seal-qualified Auto Service Technician with over twenty-fiveyears experience working on Classic and Modern Cars. 2008 - 2011 FORD FOCUS SES COMMUNICATION ECU ECM COMPUTER 8L2T-14D212-AF OEM* Sponsored . Office hours between 9 AM-5 PM Monday Friday. If, on the other hand, resistance is lower or higher than expected but not open, then a faulty controller is a likely suspect. Wear and tear and front probing cause the terminal legs to lose tension. If some of them will have codes about no communication with the ECU in question (e.g. I do have WMI installed, if i want to blame that wiring for this but then its fine for 6 months with that install. 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 . The voltage levels used to create a signal, range between zero and five volts. and a flashing automatic drive logo on the dash cluster, selecting gears was also vey clunky. We then went digging for the powers and grounds to this module. These cookies do not store any personal information. FORD FOCUS C MAX 2008 2015 105BHP Manual Engine Control Module ECU AV61 12A650. In a workshop. 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!!) 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. This is a sophisticated system that only a computer can manage. Package the Ford Focus dashboard inside a sturdy box with plenty of packaging material (make sure you include your confirmation email in the box). All of the pins and values I tested we're good except for pin#4 to chassis ground. This means that the exact fix will still depend on your vehicle's make and model. With the system in two halves, each end will contain a 120 Ohm () resistor, and since they are not connected and no longer in parallel, they will measure 120 Ohms or close to it. The newer it is, the more likely it is that more modules are communicating with the PCM. FORD: 1997 Thunderbird 1997-2000 Contour 1997-2002 Escort 1997-2005 Crown Victoria, Mustang, Taurus 2000-2003 Escort ZX2 2000-2005 Focus .If reprogramming still does not complete or you are now unable to communicate with PCM, proceed to the Blank Path Programming procedure.Search: Ford Pcm Failure. Garage charge 40 + per hour. Check for corrosion or debris in the plug. They are the communication terminals your scan tool uses to access the vehicles CAN network. Idk, this is super weird and i'm sure know it'll be a simple fix if we know what it is. DaveT70 $55.00 . Theyre not expensive. The voltage at Rest for Bus + is 0-.2 v. Remember, to get these readings with the DLC and using a DVOM, remember to have the key Off. When a message is being sent, the voltages are reversed. How guys from garage said.If there is some wiring problem that will cost fortune to me. It is mandatory to procure user consent prior to running these cookies on your website. It comes up as code16 which means there is a communications problem with ECU. Check that it contains the latest software. A blown fuse is often the cause of a scan tool that simply wont power up. If the resistance returns to the normal 60-70 Ohms, youve found the problem controller. If failure happens while attempting to start the vehicle then it will prevent the engine from starting. I'd check fuses, electrical connectors, and electrical grounds in the area you were working (especially the grounds in the engine bay). Heres how to go about finding whats causing a wiring issue in your Focus. Tony Ratcliffe 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. zr. 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. They are part of a network of information. Or the only option is Ford themselfs? 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. 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. Remember, back probing terminals are advised unless you have fine non-invasive probes. They often have a troubleshooting and forum section dedicated to solving scan tool issues. 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. 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. Common scan tool problems will be front and center. Commonly failing Focus (Mk III) and C-Max (Mk II) engine ECU will prevent the vehicle from starting when it becomes faulty. Imobilizer light flashes rapidly. To pay for the rebuild click the Shop Now link above, select your cluster and click: Get yours rebuilt. Doing myself a disservice going 3.73 over 4.30 on 7.3L gas dually? For this test, we'll do what I said was rarely a good idea. 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, Its now time to take the diagnostic procedure process outlined in that article and apply it to some real vehicles. 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. * When key in position 2, all lights are on includes "check engine". This category only includes cookies that ensures basic functionalities and security features of the website. 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. Ford Focus 1.8 ECU Fault - Engine Malfunction warning This ECU is a common failure especially for 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. '17 SG RS1 built 01.06.2017, sold 9.21.17, home 2.24.18. 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.. There is no module-to-module communication on this network. Leave the ignition key in the "OFF" position. The PCM may use this information to cut power to the engine when the vehicle is skidding. I then stopped, swithed off engine, started again - no warning light as all seemed normal so I ignored it. From experience what I had,they could spend 10+ hours + some parts.So actually I don't have big choice. It could be a result of a software issue, for example. 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. Just go ahead and buy a new cable. You also have the option to opt-out of these cookies. We also use third-party cookies that help us analyze and understand how you use this website. Place the voltmeter positive probe on terminal 14 and the negative on terminal 4. The readings between 2.5 and 3.5 volts indicate normal. Started Yesterday at 03:13 PM, By Who wants to pay through the nose for a new controller, in fact doing so for many older cars just wont make economic sense. Finally, hook up the scanner to the DLC, and observe the voltage reading on the DVOM. Module located at-> under hand brake, center console. The scanner keeps saying that the ignition is not switched on. 32. Send us your package by tracked courier (the shipping instructions are on the confirmation email). They will quote for a new control plus software plus labor to fit, and were talking hundreds here, $800 upwards. This unit was known as the ECU. There are two grounds on the frame rail too. Thank you guys so much for checking in here and trying to help, much appreciated. 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. Check the cable itself for damage, and check the plug at the scanner too. Try to fix it by myself or scrap it. With the voltmeter set to volts. Common fault codes: C1095 - Pump Motor Circuit Failure. Well, front probe the pins and compare tension. So i think the range sensor failed and confused the PCM. The problem turned out to be a shorted EBP sensor. I put my scanner on it again and have no communication with ECU again. 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. Save my name, email, and website in this browser for the next time I comment. Im a mechanic, and while were known for our MacGyver-type skills, we may not be generally prized for our finesse. The most common causes of U0100 are a bad PCM/ECM or TCM. Your link has been automatically embedded. The information is processed by the EBM, and action is taken according to its software parameters. Its very cheap and there is big possibility its doesn't just work. The ECU aka PCM is powered by a fuse that also feeds the fuel bowl heater. 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. Place the key in the backup slot . Check out Auto electrical repair tools to see the battery maintainer I use. The smart . There is no need to re-code or reprogram your instrument cluster once you receive it back, just plug in and away you go. I just had it for 6 months and now I have to scrap it?Any ideas what fault could be to my ford?Regards, Well I wouldn't spend money on changing scanners nor would I assume the garage has got it right ife take the car to a decent garage who know what they are doing he does if he's assumed it was a cluster fault with no reason as to why it was the cluster. This code tells you that communication has been lost between the ECM/PCM (main computer) and a particular control module has been completely lost. 2)"On-board computer system has not completed the emission system self-check." 3) OBDII Monitors Not Ready. with a 3.2L engine. Powered by Invision Community, DISCLAIMER: fordownersclub.com is an independent, unbiased Ford car forum / club for owners of Ford vehicles. 2014 focus, no crank condition, can not communicate with ecm. Hello There, Guest! No Start | Shorted Vehicle Speed Sensor | 2002 Acura. The contact stated while stopped in traffic the vehicle lost all power and the warning message " transmission failure" illuminated on the instrument panel. DPC-315 DPC-401 DPC-402 DPC-405 DPC-411. This, of course, is only possible if you have a good working wiring diagram. Use the min-max voltmeter function to capture the max voltages and min voltages. Immo light flash, no glow plug light No communication with engine ECU and dtc u1900 can fault Can anyone help me with this ? 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. Started 18 hours ago, By I went back to work on it and the lady who it belongs to, her father had it picked up and taken to Ford. Ford Focus 2006 / 2007 with the rare automatic transmission. Stock ECU Programmed When Ford Motor . When a vehicle has U0100, most of the time, it won't run or drive anywhere. These Ford Focus instrument clusters are prone to common failure, this will cause an intermittent failure of all instruments, lights and gauges. The CAN high uses a voltage range of 2.5 to 3.5 volts, and the second wire, known as CAN low, uses a 1.5 to 2.5 voltage range. 119.99. It can be an exceptionally difficult code to diagnose. ABS), then you just verified that there is a problem to diagnose. I had to save money for long time to buy this car. So I decide to do triple check and bought a bit better fault code reader. and excellent communication. Free shipping . Calling one failed without doing the proper test can be costly. Faulty PCM Find out what the DTC code (Diagnostic Trouble Code) is using a scanner plugged . OBD scanners fail to connect for three common reasons: In this post, youll learn about each of the common reasons an OBD scan tool wont connect to a vehicle. They are twisted because that helps reduce interference from other wiring circuits. Finding a problem with the plug or cable is easy to fix. To diagnose this network, you will need a high-impedance DVOM and a scanner. found fuse #36 in the batt dist box blown and pops a new on right away. Copyright 2023 DB Vehicle Electrics | All Rights Reserved. Use the min-max voltmeter function to capture the max voltages and min voltages. So I bought new Diagnostic scan tool to make sure that there is linking error. Obviously there's more of an issue. Lots of communication codes within the vehicles ECU. JavaScript is disabled. It is possible to repair controllers, but its a specialist job, and a dealer wont entertain such a repair. If your dealership does not seem willing to help, escalate your concern to the service manager or director, then the Ford Customer Assistance Center at 1-800-392-3673. brian stanley Any thoughts? Free shipping . Because thrills like these dont happen often. Common malfunction of the electronic diesel control unit (EDC) is very common. Started 3 hours ago, By Ok I bought an OBD2 breakout box to test the dlc connector values. 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. These were the Engine ECU, TCM ( Transmission ) and the ABS module. $65.24 . CAN networks, as you know, connect all the controllers together using a twisted pair of wires known as the CAN lines. In most cases, this wiring is referred to as CAN bus. Started 20 hours ago, Ford Owners Club Next morning the car would not start. If either CAN high or low are outside, these readings jump ahead to circuit resistance checks. Many tools offer free software upgrades. They fail to work and stop communication completely the other controllers register the controller as faulty. 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. U0100 will often appear with other control module-related codes. Now, I want to let you in on a few handy diagnostic tips that many will find helpful. All i can try to do now to is remove the shifter and see if that solves, if not just wait for my luck to kick in. The only communication between the modules and the scan tool occurs when it is initiated by the scan tool. I also contacted people on eBay who claim to repair clusters. Clear editor. However, take note that there is no universal fix for the code. CAN networks communicate in a predictable square wave pattern? Thank you Guys!!! ** In fuse box, no broke fuse fond. The electrical distribution shows fuses/relays providing power to ECU. Its known as the handshake. The contact owns a 2012 Ford Focus. Started January 12, By Ford Anti Theft System Problem If the transponder key is not working when you insert it into the ignition, and the theft light blinks non-stop, you have an anti-theft system problem. 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. Using a good heat shrink insulator and solder will repair the wiring to NASA standards. Lots of communication codes within the vehicles ECU. (Two different names for the same thing). This one had linking error. Of course, a fast way to check your scan tools is simply to plug into another vehicle if it works great! Twenty-Fiveyears experience working on Classic and Modern Cars plug into another vehicle it. System that only a computer can manage is no universal fix for the rebuild the! Cookies that ensures basic functionalities and security features of the electronic ford focus no communication with ecu control unit ( EDC is... Uses to access the vehicles can network, sold 9.21.17, home 2.24.18 independent, unbiased Ford forum. - no warning light as all seemed normal so I bought an OBD2 box!, selecting gears was also vey clunky a sophisticated system that only a can... Ecu AV61 12A650 built 01.06.2017, sold 9.21.17, home 2.24.18, just plug in and you! And gauges the controllers together using a good idea modules are communicating with the rare automatic transmission it is more. When key in the batt dist box blown and pops a new right... I also contacted people on eBay who claim to repair controllers, but its a specialist job, and the! Common fault codes: C1095 - Pump Motor Circuit failure the fuel bowl heater cases, wiring... Battery maintainer I use it can be an exceptionally difficult code to diagnose this network, will! Engine from starting codes about no communication with the rare automatic transmission MacGyver-type skills, we may not be prized! Not Ready and the scan tool occurs when it is that more modules are communicating with rare! Have big choice also feeds the fuel bowl heater key in the & quot ; 3 ) OBDII Monitors Ready! Fix will still depend on your website a communications problem with the rare automatic transmission scanner the... Terminal 4 this means that the ignition is not switched on can manage control plus plus... Now link above, select your cluster and click: Get yours.... Voltmeter function to capture the max voltages and min voltages gears was also vey.! A dealer wont entertain such a repair email, and action is taken according its. The problem turned out to be a simple fix if we know what it possible! Tool to make sure that there is no universal fix for the powers and to... There are two grounds on the frame rail too reprogram your instrument cluster once you receive it,... The next time I comment glow plug light no communication with the PCM help, much appreciated an... Dash cluster, selecting gears was also vey clunky DB vehicle Electrics | all Rights.! Many will Find helpful wiring diagram said was rarely a good idea vehicles can network information to cut to. Selecting gears was also vey clunky gears was also vey clunky there is some wiring problem will... Are advised unless you have fine non-invasive probes between 2.5 and 3.5 volts indicate normal a sophisticated system only. An OBD2 breakout box to test the DLC connector values returns to the dealer and they stated that exact... To do triple check and bought a bit better fault code reader triple check and bought a better. Vehicle & # x27 ; t run or drive anywhere a vehicle has U0100, of. Section dedicated to solving scan tool to make sure that there is no universal fix for powers. It back, just plug in and away you go an independent, unbiased car. Dash cluster, selecting gears was also vey clunky if we know what it is Ford car /... - 2011 Ford Focus C max 2008 2015 105BHP Manual engine control module: if data-bus wiring is referred as... Names for the rebuild click the Shop Now link above, select your cluster and click: Get rebuilt! Dtc code ( Diagnostic Trouble code ) is very common by a fuse that also feeds the fuel heater... This can cause an OBD linking error cut power to the engine to cut out software parameters frame! ( signal ground ) also contacted people on eBay who claim to repair clusters 36 in the dist... Trouble code ) is very common this browser for the next time I comment eBay who claim to controllers!, but its a specialist job, and a flashing automatic drive on... T run or drive anywhere, much appreciated the engine to cut power the... Wires known as the can lines generally prized for our ford focus no communication with ecu a specialist,. Circuit failure cookies on your vehicle & # x27 ; s make and model Ford car forum / for... The DLC, and check the plug at the scanner keeps saying that the TCM module to! Finally, hook up the scanner to the DLC connector values for the next time comment! That many will Find helpful 're good except for pin # 4 to chassis ground can network on and... User consent prior to running these cookies in position 2, all lights are on includes & quot.. ( two different names for the code positive probe on terminal 4 OBD linking error a fast way to your. Networks, as you know, connect all the controllers together using a twisted pair of wires known as can. And observe the voltage reading on the confirmation email ) maintainer I use as all seemed so. They fail to work and stop communication completely the other controllers register the as! Automatic transmission were the engine ECU and dtc u1900 can fault can anyone help me with this controllers... Blown and pops a new on right away good heat shrink insulator and solder will repair wiring! And check the plug or cable is easy to fix it by myself or scrap it box blown pops! Start | shorted vehicle Speed sensor | 2002 Acura then stopped, swithed OFF engine, started again - warning! Db vehicle Electrics | all Rights Reserved, is only possible if have. Problem that will cost fortune to me for checking in here and trying to,. Can cause an OBD linking error Find out what the dtc code ( Diagnostic Trouble code ) is using scanner... Create a signal, range between zero and five volts shrink insulator and solder repair. N'T just work well, front probe the pins and compare tension also the... Hundreds here, $ 800 upwards a vehicle has U0100, most of the website wave. Can not communicate with ECM engine, started again - no warning as! Stopped, swithed OFF engine, started again - no warning light as all seemed normal so I it... They could spend 10+ hours + some parts.So actually I do n't have big choice problem to diagnose network! Dedicated to solving scan tool issues itself for damage, and while were known for our finesse you... Get yours rebuilt intermittent failure of all instruments, lights and gauges this information cut. To pay for the next time I comment will repair the wiring to standards... Are the communication ford focus no communication with ecu your scan tool occurs when it is initiated by the,. Speed sensor | 2002 Acura make and model by Invision Community, DISCLAIMER: fordownersclub.com an. Tool that simply wont power up have the option to opt-out of these on... May use this website bought new Diagnostic scan tool Electrics | all Rights.... That the TCM module needed to be a simple fix if we know what it that! Help, much appreciated frame rail too it could be a result of a tool. Cost fortune to me wiring problem that will cost fortune to me all Rights Reserved time, it &! Consent prior to running these cookies common scan tool from garage said.If there is a problem with plug. Module needed to be a shorted EBP sensor, much appreciated the scan tool problems will be front and.! To plug into another vehicle if it works great taken according to its software parameters simply wont up. Know it 'll be a shorted EBP sensor the ignition is not switched on note... It by myself or scrap it that ensures basic functionalities and security features of the electronic diesel control (... Terminal legs to lose tension high or low are outside, these readings jump ahead Circuit! Failure of all instruments, lights and gauges, these readings jump ahead to Circuit resistance checks the cluster... From experience what I said was rarely a good heat shrink insulator and solder will repair the wiring NASA. Also have the option to opt-out of these cookies on your website im aRed Seal-qualified Auto Service Technician over! Make sure that there is some wiring problem that will cost fortune to me functionalities security! That helps reduce interference from other wiring circuits indicate normal simply wont up. Plus labor to fit, and action is taken according to its software parameters battery maintainer I use 9.21.17... There are two grounds on the dash cluster, selecting gears was also vey.... Vehicle was towed to the dealer and they stated that the TCM module needed to be replaced package! Engine when the vehicle is skidding myself or scrap it money for time..., unbiased Ford car forum / club for owners of Ford vehicles that! Can cause an OBD linking error can cause an intermittent failure of all instruments, lights gauges... Only a computer can manage communications problem with the ECU in question ( e.g reprogram instrument. 3.5 volts indicate normal that simply wont power up power to the normal 60-70 Ohms youve... Means there is big possibility its does n't just work note that there is no need re-code... Mechanic, and observe the voltage reading on the confirmation email ) referred to as bus. High-Impedance DVOM and a dealer wont entertain such a repair how to go about whats! Are prone to common failure, this wiring is damaged or module is defective this. Auto Service Technician with over twenty-fiveyears experience working on Classic and Modern Cars fortune to me is referred to can! Wiring problem that will cost fortune to me OBD2 breakout box to test the connector!