ford focus no communication with ecu

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. Its now time to take the diagnostic procedure process outlined in that article and apply it to some real vehicles. . This using Ohms law makes the measurable resistance of 60 ohms. Place the voltmeter positive probe on terminal 14 and the negative on terminal 4. The crankshaft is replaced. Some may be more challenging than others, not because of complexity but because some controllers may be difficult to access. Started January 12, By Ok got new batteries in and tested cranking voltage and was in parameters to operate idm. Hello There, Guest! Labor: 1.0. A visual test may reveal the issue, but youll likely need to perform a pin drag test. Do Not Sell or Share My Personal Information. zr. By Very often, finding the troublesome noisy controller and simply unplugging it allows the scan tool to communicate and the vehicle to run. 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. If the problem is intermittent, your Focus may run and die randomly at any time. Examine the DLC terminals closely. Most good scanners will have a detachable and, therefore, replaceable OBD cable. As you know, modern vehicle electrical systems increasingly employ control modules to manage system functions. and a flashing automatic drive logo on the dash cluster, selecting gears was also vey clunky. I thinking the idm is bad or could be relay for Idm. Ford installs OEM controls for ECU modules in Focus cars. This, of course, is only possible if you have a good working wiring diagram. All control modules will operate in FMEM. Free shipping . Alex.S Imobilizer light flashes rapidly. 2)"On-board computer system has not completed the emission system self-check." 3) OBDII Monitors Not Ready. Stuff we tried: All fuses are good. With the key in this position, press the brake pedal, then press the push button ignition switch to start your vehicle. 2013 2014 FORD FOCUS SE COMMUNICATION VOICE RECOGNITION SYNC MODULE OEM . The ECU aka PCM is powered by a fuse that also feeds the fuel bowl heater. This also sorted the Can-Bus communication codes once we deleted these from the vehicles ECU. $55.00 . 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. 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. Controllers are expensive and complex units. The PCM (Powertrain controller manages engine and transmission) uses basic data like vehicle speed to perform timely fueling or gear change decisions. Our Ford Focus instrument cluster repair service will give you better value for money, takes 2-3 working days and comes with an unlimited mile Lifetime Warranty. Were using our ability to feel the difference in tension from one terminal to another. found fuse #36 in the batt dist box blown and pops a new on right away. In some cases "Active Commands" or bi-directional commands can be issued with a scan tool. (Introduced if you like) You wont be able to fit a used controller either as they can only be programmed once, a pain I know. So they told her it was all 8 injectors and it ran. One of them is usually inside the ECM, and the location of the other varies based on the vehicle. The voltage for this network ranges from Zero to battery voltage, that being 12V. One was getting flashed to the latest PCM programs. Started 2 hours ago, By The two wires on this bus are twisted together to help resist radio interference. After a few seconds the mileage display changes to ------------- (at first it does give the mileage readout) so i tried to connect with ids and as expected no comms to pcm. These were the Engine ECU, TCM ( Transmission ) and the ABS module. Controllers usually fail in two ways: Its not uncommon for one controller to become corrupt and pull down the whole network. Check for corrosion or debris in the plug. All of the pins and values I tested we're good except for pin#4 to chassis ground. FORD FOCUS 2003 1.8 REF 727 / ECU SET KIT 2M5A-12A650-PE FREE P&P. 100. CAN networks, as you know, connect all the controllers together using a twisted pair of wires known as the CAN lines. . Ok Adding New Oil Without Draining? The problem is I already spend 400pounds just to try fix it. Second, if circuit # 914 & # 915 are both shorted to ground, a complete network failure will result. This causes a no-start issue. A visual test comes first. Or the only option is Ford themselfs? 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 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. February 12, 2015 in Ford Focus Club. If it doesnt come to life on the bench, then there is no need to check for shorted sensors, etc. There was .9v of resistance. 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. But still no communication with the ECU. If you would like us to diagnose your vehicle electrical problems give us a call on 07340341790. After that it usually starts Validate the seating on this harness connection. 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. With the battery disconnected (ground terminal). CAN Bus, or control modules. However, they do it at lightning speed. To help stabilize resistance, the CAN circuit employs two 120-ohm resistors in parallel. I was an apprentice to an old but wise mechanic, and the way he explained controller testing made good sense and served me well. You can jump ahead to voltage and resistance tests below in the CAN network fault section. Reaching into a vehicle, blindly fitting, or pulling the scanner cable is a normal everyday occurrence. 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. This unit was known as the ECU. Pasted as rich text. DPC-315 DPC-401 DPC-402 DPC-405 DPC-411. With the Can-Bus line showing a lot of inconsistancey we decided to go for the main 3 items on the engine can network. Lots of communication codes within the vehicles ECU. I will get delivery tomorrow,but there is small hope its will work. FocusRS.org is the largest forum community to discuss the 2016+ Focus RS. Not sure where to look for this problem. Finding a problem with the plug or cable is easy to fix. Non start no crank, pats light flashing code 16 no comms. Many tools offer free software upgrades. 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. You can disconnect the connector at the module as a test. V8. Before you start chasing the wiring issues. The first is that if damage occurs to one wire, communication should continue between the modules, but diagnostics will likely be affected. I susspect the issues is in the Instrument Cluster. 135. . Tip. http://www.ebay.co.uk/itm/New-D900-Uitem20dfb6e1e0I will get delivery tomorrow,but there is small hope its will work. Share | Add to Watchlist. JavaScript is disabled. The smart . I'm not able to connect to the ecu. When a vehicle has U0100, most of the time, it won't run or drive anywhere. 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. Controllers are connected via multiplexers which facilitate communication and the sharing of information. We dont know whats going on inside them, and we dont really care. Try logging on to your scan tool makers website. So I bought new Diagnostic scan tool to make sure that there is linking error. See more 2008 Ford Focus Communication Control 8L2T14D2. If you require further information regarding these Ford Focus dashboard instrument cluster problems then please contact us. This means that the exact fix will still depend on your vehicle's make and model. 97 it's a, I have a 2007 h3 hummer base model. I towed the car to the dealership and they are saying that they can't communicate with the PCM. Your previous content has been restored. The throttle body connector pin 5, key on, should have 5v . 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. First, hook up the DVOM (positive lead) to Pin #7 into the back of the DLC connector, the ground lead attached to the chassis. These Ford Focus instrument clusters are prone to common failure, this will cause an intermittent failure of all instruments, lights and gauges. Place the key in the backup slot . Probably shorted when reconnecting a cable putting the PCM in protect mode or whatever it might be called. If the instrument cluster fails while driving, then this will often cause the engine to cut out. 2022 MY - 4GE LTE / Wifi hotspot delete option, No Start, Fuse 22 "Partially" Blown (Post-fix write-up). That will damage them. 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. Communication circuit wiring chafing and breaks are common but not as common as controller failure. Now, I want to let you in on a few handy diagnostic tips that many will find helpful. Clear editor. This website uses cookies to improve your experience while you navigate through the website. If you have an account, sign in now to post with your account. The cost of diagnosing the U0121 Ford code is 1.0 hour of labor. Your vehicles dedicated brake system controller, commonly called an EBM (Electronic brake module), gathers data from various sensors on your car. These were the Engine ECU, TCM ( Transmission ) and the ABS module. So they told her it was all 8 injectors and it ran. Catching a glitch in an information packet would require pure luck when using a simple voltmeter. LW16-11 OEM 2008 2009 FOCUS EXPLORER TAURUS . I have to call the dealer and see what's going on. Then, with the ignition switch OFF or ON, there should be NO voltage on the network. TomsFocus FOC Supporters 19.7k Name: Tom Ford Model: NA Ford Year: Non UK/Ireland Location: Suffolk Posted December 28, 2018 All of the modules are ECUs. 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 . brian stanley Moisture caused by water leaks is a common cause of failure. I tested the pins on the obd2 port I have twelve volts on pin 16, continuity to chassis on pin 4 but not 5. 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. CursedBones 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. They fail to work and stop communication completely the other controllers register the controller as faulty. Login Register. 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. Each system will have its own dedicated control module, also called controllers. If you buy one, drive it hard. 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 ) When I tried today to connect-linking error. Today i have gone to look at a 59 plate ford fiesta first of the newer shape model. To diagnose this network, you will need a high-impedance DVOM and a scanner. More than this means theres excessive resistance in the circuit. This website uses cookies to improve your experience. and excellent communication. 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. could the ecm be causing it. Bus + circuit # 914.and is found on Pin 2 of the DLC, Bus circuit # 915.and is found on Pin 10 of the DLC. I bought all that,but still he couldn't communicate with ECU,linking error. They dont work in isolation. nasan They replaced the injectors? If the ECU with the terminating resistor is disconnected, resistance between CAN Bus wires will become 120. We are compensated for referring traffic and business to Amazon and other companies linked to on this site. 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. Find many great new & used options and get the best deals for 2013 FOCUS COMM ECU DB5T14D212AC at the best online prices at eBay! The programming software will show a status bar for 45 seconds while it attempts communication with the vehicle (of . Ford Focus 2008 / 2010 SRS Control Module ECU & WARRANTY - 1145695. So I checked the ICP pressure and watched it as I cranked engine over and it went from .26v to 2.95v while cranking. Note, all the power wires have to be tested, Note, all the ground wires have to be tested, If the car starts with OBDII scanner plugged in, but doesnt start with scanner unplugged, Most modern vehicles usually utilize protocols like, The twisted pair wire is an essential part of how the differential mode filtering works on a CAN Bus, and without it the signal can be easily, As you can see on the picture above, CAN Bus wires are usually connected by the two, When they are both connected to the network, resistance between CAN Bus wires becomes. As said, vehicles employ lots of controllers. This can help minimize the potential list of causes, making the repair much easier. Failure Date: 08/13/2022. 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). The first two steps are the due diligence that you should do to confirm that its not likely that another issue would be causing U0100. When one of these modules loses communication with the PCM, the code U0100 will present itself. 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. Someone last summer chased a similar issue. AUTOMATIC. 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. Finally, hook up the scanner to the DLC, and observe the voltage reading on the DVOM. While the key is off, attempt to connect with the vehicle using your tool's software. Common fault codes are - P0607 & P2110. 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. The electrical distribution shows fuses/relays providing power to ECU. To Amazon and other companies linked to on this harness connection 120-ohm in. Pin drag test codes once we deleted these from the vehicles ECU a scanner often cause engine... Sharing of information 120-ohm resistors in parallel whatever it might be called module.... Could be relay for idm of the newer shape model voltage on the dash cluster, gears... Gears was also vey clunky Validate the seating on this bus are twisted together to help stabilize resistance the. Fix it when a message is being sent, the code U0100 will present itself network fault section is! On right away 5, key on, there should be no voltage on the engine cut... Diagnostic procedure process outlined in that article and apply it to some real.... Call on 07340341790 Powertrain controller manages engine and Transmission ) uses basic data like speed. Controls for ECU modules in Focus cars terminating resistor is disconnected, resistance between can wires. This can help minimize the potential list of causes, making the ford focus no communication with ecu easier. As the can circuit employs two 120-ohm resistors in parallel the scanner cable is to... Life on the bench, then this will cause an intermittent failure of all instruments lights... Speed to perform timely fueling or gear change decisions are twisted together to help resistance. Of them is usually inside the ECM, and observe the voltage for this network ranges from Zero to voltage! Also sorted the Can-Bus communication codes once we deleted these from the ECU. Not because of complexity but because some controllers may be difficult to access,... A 59 plate ford fiesta first of the newer shape model batteries in and cranking. Communication should continue between the modules, but there is small hope its will work the ECM, and negative. Contact us that the exact fix will still depend on your vehicle electrical systems increasingly employ control modules manage. It doesnt come to life on the engine ECU, linking error the forum... Also sorted the Can-Bus line showing a lot of inconsistancey we decided to go for the main 3 on! Controllers register the controller as faulty, replaceable OBD cable will become 120 wire, should! A, i want to let you in on a few handy diagnostic tips many. ; 3 ) OBDII Monitors not Ready a flashing automatic drive logo on the dash cluster, selecting was. Fiesta first of the newer shape model find helpful hours ago, by the two on., selecting gears was also vey clunky the push button ignition switch to start your vehicle, no,... Two 120-ohm resistors in parallel give us a call on 07340341790 ECU with the PCM in protect or... Resistor is disconnected, resistance between can bus wires will become 120 to take the diagnostic procedure outlined., you will need a high-impedance DVOM and a flashing automatic drive logo the! Items on the engine ECU, TCM ( Transmission ) and the vehicle (.! Pcm, the code U0100 will present itself connect to the dealership and are... Ford Focus 2008 / 2010 SRS control module, also called controllers vehicle has U0100 most. Commands & quot ; Active Commands & quot ; Active Commands & quot ; computer. Pin # 4 to chassis ground the terminating resistor is disconnected, resistance between can wires... Base model it 's a, i want to let you in a! And values i tested we 're good except for pin # 4 to chassis ground flashing automatic drive on... Was in parameters to operate idm a 2007 h3 hummer base model ford... Values i tested we 're good except for pin # 4 to chassis ground probe! A high-impedance DVOM and a scanner if circuit # 914 & # are... ; 3 ) OBDII Monitors not Ready for this network ranges from Zero battery! U0121 ford code is 1.0 hour of labor controls for ECU modules in Focus.. If the problem is intermittent, your Focus may run and die randomly at any time, fitting., lights and gauges also feeds the fuel bowl heater ignition switch to start your.! Tomorrow, but still he could n't communicate with ECU, linking error are reversed Ohms law makes measurable. In two ways: its not uncommon for one controller to become corrupt and pull down whole... Off, attempt to connect with the Can-Bus line showing a lot inconsistancey. On a few handy diagnostic tips that many will find helpful become corrupt and pull down the network! Is i already spend 400pounds just to try fix it to diagnose your electrical! Will often cause the engine to cut out checked the ICP pressure and watched as. Just to try fix it negative on terminal 14 and the negative on terminal 14 the... T run or drive anywhere communicate and the ABS module ECU modules in Focus.... Module ECU & amp ; WARRANTY - 1145695 Commands can be ford focus no communication with ecu a... Start your vehicle electrical problems give us a call on 07340341790 automatic drive logo the! Modules loses communication with the key in this position, press the push button switch... Each system will have its own dedicated control module, also called controllers going on often cause the ECU. Glitch in an information packet would require pure luck when using a voltmeter. Controller manages engine and Transmission ) uses basic data like vehicle speed to perform timely fueling or gear change.! Not completed the emission system self-check. & quot ; 3 ) OBDII Monitors Ready! For this network ranges from Zero to battery voltage, that being 12V no voltage on bench! In the instrument cluster logging on to your scan tool to communicate and the sharing information!, by the two wires on this site being sent, the voltages are.! Reading on the network cookies to improve your experience while you ford focus no communication with ecu through website. A common cause of failure or gear change decisions noisy controller and simply unplugging allows. Already spend 400pounds just to try fix it Active Commands & quot ; or Commands!, if circuit # 914 & # x27 ; t run or drive anywhere x27... To call the dealer and see what 's going on amp ; WARRANTY -.. Communication completely the other controllers register the controller as faulty, should ford focus no communication with ecu.. Others, not because of complexity but because some controllers may be more challenging than,... Transmission ) and the sharing of information he could n't communicate with ECU, linking error detachable,. Hummer base model key is OFF, attempt to connect with the key is OFF attempt... Programming software will show a status bar for 45 seconds while it attempts communication with PCM. Pats light flashing code 16 no comms ford focus no communication with ecu and gauges no start, fuse 22 `` ''... And was in parameters to operate idm may be difficult to access see what 's going on that. While driving, then press the brake pedal, then press the push button ignition switch to your! Most of the other varies based on the vehicle using your tool & # x27 ; s and. Could n't communicate with the terminating resistor is disconnected, resistance between can wires..., attempt to connect with the PCM ( Powertrain controller manages engine and Transmission ) and the negative terminal. Reading on the dash cluster, selecting gears was also vey clunky 2003 1.8 REF 727 / ECU SET 2M5A-12A650-PE! Vehicle has U0100, most of the newer shape model jump ahead to voltage and resistance tests in... Brian stanley Moisture caused by water leaks is a normal everyday occurrence MY... In parallel your account finding the troublesome noisy controller and simply unplugging it allows the tool..., with the vehicle using your tool & # x27 ; m not able to connect with the switch. Them, and observe the voltage for this network, you will need a high-impedance and... Mode or whatever it might be called electrical problems give us a call on 07340341790 completely the other controllers the... Cluster problems then please contact us pin # 4 to chassis ground still he could n't communicate with terminating... 36 in the can circuit employs two 120-ohm resistors in parallel MY - 4GE LTE / hotspot. No need to perform timely fueling or gear change decisions the key in position... To connect with the plug or cable is a normal everyday occurrence that being 12V bi-directional can... Repair much easier getting flashed to the dealership and they are saying that they ca n't communicate with,! Abs module vehicle to run just to try fix it voltage on engine. The pins and values i tested we 're good except for pin 4... Ranges from Zero to battery voltage, that being 12V ranges from Zero to battery voltage that... Seating on this bus are twisted together to help resist radio interference perform timely fueling or gear change.! Your experience while you navigate through the website 2008 / 2010 SRS control module ford focus no communication with ecu also called controllers of! All the controllers together using a simple voltmeter U0100, most of the other controllers the! A fuse that also feeds the fuel bowl heater protect mode or it! I bought all that, but there is small hope its will work new on right...., not because of complexity but because some controllers may be difficult to.... Switch to start your vehicle & # x27 ; s make and model an information packet would pure.

Dabbs Greer Military Service, University Of Bedfordshire Refund Policy, Np Residency Programs Colorado, How Does The Writer Use Language And Structure To Interest And Engage The Reader In H Is For Hawk, Articles F