. Its known as the handshake. LW16-11 OEM 2008 2009 FOCUS EXPLORER TAURUS . That is a common issue most ford vehicles experience. Check the fuses. 1997 - 2003 Ford F150 - Difficult to start and no ecu communication - Hi, i am working on a 1999 5.4V8. You can disconnect the connector at the module as a test. Started July 8, 2022, By 221,000 MILES. This is a simple voltage check using a voltmeter and fine probes. Next, well pin-drag test the terminals. There are two grounds on the frame rail too. FORD FOCUS 2003 1.8 REF 727 / ECU SET KIT 2M5A-12A650-PE FREE P&P. 100. After that it usually starts Validate the seating on this harness connection. Copyright 2023 ECU Testing LTD. All Rights Reserved, Comments on "Ford Focus Dashboard Instrument Cluster - common fault", Power Steering (EPS - Electric Power Steering), ECU (Transmission Combined Clutch Actuator), ECU (Comfort / Convenience Control Module), ECU (ELSD - Electronic Limited Slip Differential), Loss of all instrument cluster functions and lights, Speedometer, temperature and rev counter drops to zero, P1260 - Theft Detected Vehicle Immobilised, U0155 - CAN Data from Hybrid Electronic Cluster Module Not Received By TCM, P0106 - Manifold Absolute Pressure /Baro Sensor Range Performance, P0108 - Manifold Absolute Pressure/Barometric Pressure Circuit High Input, U1900 - CAN Communication BUS Fault - Receive Error, U2510 - CAN Invalid Data for Vehicle Security, U0155 - Engine ECU Lost Communication with Instrument Cluster. Tip. Controllers, therefore, share information. If resistance is more than 120, it means that there is a problem with CAN Bus wires and/ or possibly with both ECUs that host terminating resistors. If it doesnt come to life on the bench, then there is no need to check for shorted sensors, etc. U0100 will often appear with other control module-related codes. The PCM may use this information to cut power to the engine when the vehicle is skidding. Of course, if you have used this same scanner previously and it worked, then this whole section doesnt apply to you. Maybe one got bumped. But opting out of some of these cookies may have an effect on your browsing experience. This ECU is a common failureespeciallyfor 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. Mark_ZS Im a mechanic, and while were known for our MacGyver-type skills, we may not be generally prized for our finesse. 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. Now, measuring resistance not at the DLC but instead at CAN In and CAN Out (at the disconnected controllers block connector) will identify which side of the circuit is at issue. Thank you guys so much for checking in here and trying to help, much appreciated. and a flashing automatic drive logo on the dash cluster, selecting gears was also vey clunky. 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. There is no module-to-module communication on this network. Some people in warmer climes leave it disconnected. Ford Focus . i dont have a wiring diagram for that circut. This is not a problem, if you prefer this option then follow the following steps: Package the dashboard instrument cluster inside a sturdy box with plenty of packaging material (make sure you include your confirmation email in the box). In a long-winded way, Im saying your vehicles OBD connector, also known as the DLC (Datalink connector), may be damaged from possibly years of OBD scanning and, dare I say it, Front probing.. 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. With the voltmeter set to volts. That will damage them. When unplugging the TCM which is a pain to get to. ECU ECM No Communication FREE fix!! Place the negative probe on terminal 4 and the positive probe on the chassis ground and note the reading Repeat this for pin 5. Check that it contains the latest software. Next morning the car would not start. Checking your vehicles socket is a little more work but not much. The official Ford website can be found at http://www.ford.co.uk/, Really Need Help Ford Focus Ecu Communication Problem. 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. 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. The contact owns a 2012 Ford Focus. 97 it's a, I have a 2007 h3 hummer base model. Should see ECU pin outs. And finally, if both wires are open in one of the branches of the network, only the modules that are on the open side of the network will be affected. zontjiks, Simply replace the ECM. brian stanley The more sophisticated your vehicle is, the more controllers it will have. They can be almost anywhere. 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. Investigate constant misting up windows, damp carpets, water sloshing noises, musty smell, and sweet smell; keep your window cowl drains, and firewall drains clear, check those sunroof drains and take care of water leaks immediately; they can do a surprising amount of damage. This may seem simplistic, and you are correct, but its worth exploring for two reasons. February 12, 2015 in Ford Focus Club. Or is it better to send my Cluster to a repair and hope for the best? i have 12v to coils etc but no ref voltage to sensors. And always remember the network must be repaired FIRST. If you require further information regarding these Ford Focus dashboard instrument cluster problems then please contact us. Jun 26, 2015. Still no update from the dealership. Second, if circuit # 914 & # 915 are both shorted to ground, a complete network failure will result. I do have WMI installed, if i want to blame that wiring for this but then its fine for 6 months with that install. Controllers at the start of the CAN network and the end often employ an integrated 120-ohm resistor. Its eyes on eyes. Place the voltmeter positive probe on terminal 14 and the negative on terminal 4. RECALLS! Moisture caused by water leaks is a common cause of failure. My fuse box has some corrosion in it so had to clean it up. Common Ford Focus and C-Max ECU malfunction will . could the ecm be causing it. 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. One day I was driving home from work and suddenly my engine just stall,no weird sounds or other symptoms for any faults. CAN networks communicate in a predictable square wave pattern? Raydog I wrote a post about the systems it affects, which is included in this post How hard is it to change car battery.. For a better experience, please enable JavaScript in your browser before proceeding. A blown fuse is often the cause of a scan tool that wont power up. Now, turn ON the ignition switch and compare the signal(s) you see with the diagrams below. However, they do it at lightning speed. Often main dealerships will attempt to swap out the faulty cluster with a replacement unit, however this will require coding to the vehicle at an extra expense. Although the short shifter i used is not cobb but its the same model, cobb recommends to remove the white clip on the range sensor put the gear on the 4th and reattach the clip, this will reset the neutral(according to cobb). As said, vehicles employ lots of controllers. Started 20 hours ago, Ford Owners Club The two wires are identified as CAN high and CAN low, so-called because of the range of volts they use to communicate on the network. This website uses cookies to improve your experience. The information is processed by the EBM, and action is taken according to its software parameters. ENGINE ECU FORD FOCUS MK4 C519 2018 On TITANIUM 999 PETROL B7DA - 11936760. Restraints Control Module: if data-bus wiring is damaged or module is defective, this can cause an OBD linking error. 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. 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. By Save my name, email, and website in this browser for the next time I comment. The cause can now be diagnosed with the aid of a wiring diagram, a component locator, a DVOM, and a healthy dose of patience. 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. 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. But the BCM may also share information about ABS activation. Depending on how your CAN network is wired. The PCM (Powertrain controller manages engine and transmission) uses basic data like vehicle speed to perform timely fueling or gear change decisions. If however the scanner is new or new to you, go ahead and check your scanners capability. 2022 MY - 4GE LTE / Wifi hotspot delete option, No Start, Fuse 22 "Partially" Blown (Post-fix write-up). They, in turn, signal back so that all the controllers talk to each other. This category only includes cookies that ensures basic functionalities and security features of the website. Ford Focus UK model 2000 registered 1.8 diesel CL non aircon The car cut out and would not restart. Copyright 2023 ECU Testing LTD. All Rights Reserved. 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. Started 20 hours ago, By Edit: Also check health of wiring shown in the pics at this link (rear hatch door)->, Parts & Accessories from Ford's Official Store on eBay, http://www.ebay.co.uk/itm/CAN-BUS-OBitem48674ef736, http://www.ebay.co.uk/itm/New-D900-Uitem20dfb6e1e0, http://www.focusfanatics.com/forum/s09&postcount=5, Best wheel for a series 2 Escort Rs turbo, I replaced my first clutch/slave cylinder - These are my notes of how I did the full job - Just in case anyone wants these for future reference. 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). ABS Control Module: if data-bus wiring is damaged or module is defective, this can cause an OBD linking error. Check if the ECM energizes Main Relay be grounding it, when all the other power supplies are on. 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. Do not place objects like a multimeter probe into the terminals. We found the can-bus was a lot more consistant on the scope. Before you start chasing the wiring issues. The battery is OK ( and has been checked with a replacement) When you turn the ignition on the odometer just shows dashes, most of the lights come on to self test then go out, but the glow plug light does not come on at all. Examine your scan tool plug and check the pins. His ECM could not communicate because of low reference voltage. I can help you Contact me PM Reply JustJames 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. The scanner you are using may simply not be compatible with your vehicle. 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. Eventually, you'll need to pop at least one valve cover because you have a bad UVCH. 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). Stock or modified HID/DRL headlight equipped cars: in some rare cases, defects of HID/DRL systems can cause an OBD linking error. 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. Kieranfordguy Ford Focus 2006 / 2007 with the rare automatic transmission. The ECU was used in Ford Mondeo, Galaxy, Focus and Ka - 1.8/2.0/2.5/3.0. Going to test/replace relay as needed and go from there. We recommend having your Focus towed to a shop that works on your type of vehicle frequently. Also noticed cranking voltage dropped to 8.7v which won't allow idm to fire injectors. Your previous content has been restored. Check the cable itself for damage, and check the plug at the scanner too. Not sure where to look for this problem. Please LIKE, COMMENT, SHARE AND SUBSCRIBE!!! We'll assume you're ok with this, but you can opt-out if you wish. 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. Place the key in the backup slot . This site uses cookies to offer you a better browsing experience, by continuing to browse you agree to the use of cookies - find out more/change settings, Mon-Fri 9:00am-10:00pmInternational dial +44 1773 535638. 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. Its very cheap and there is big possibility its doesn't just work. This, of course, is only possible if you have a good working wiring diagram. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. What they told me was that they can test my cluster before continuing with the repair. Speedo is dissplaying dashes where the milage should be and the same warning light is flashing. Having a scope does make capturing intermittent issues easier. Heres how to go about finding whats causing a wiring issue in your Focus. You can post now and register later. By I've worked for GM, Jaguar, Land Rover, Volvo, Audi, and VW main dealers. I just had it for 6 months and now I have to scrap it? To diagnose this network, you will need a high-impedance DVOM and a scanner. If that isnt the case, check voltage terminal 16 (scan tool voltage) and terminal 4 (chassis ground). $65.24 . 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. There was .9v of resistance. 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. 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 ) 29.95. 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. Guide with pics. As the BCM already gathers speed data, it shares it with the PCM. . We then went digging for the powers and grounds to this module. 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. You cannot paste images directly. If a wire needs to be replaced, be sure to use the same size wire and maintain the twist in the wiring, the twist helps prevent interference from other wiring. The only communication between the modules and the scan tool occurs when it is initiated by the scan tool. Cluster problems then please contact us signal back so that all the controllers talk each! Communicate because of low reference voltage the PCM ( Powertrain controller manages engine and )., it shares it with the rare automatic transmission can be found at http //www.ford.co.uk/... Recommend having your Focus no voltage on the ignition switch and compare the signal ( s ) you with..., Audi, and action is taken according to its software parameters,. At http: //www.ford.co.uk/, Really need help Ford Focus 2006 / 2007 with the ignition switch and the! To life on the scope website can be found at http:,! Going to test/replace Relay as needed and go from there option, no,. Of some of these cookies may have an effect on your website vehicle frequently it will have other Control codes... Features of the website a complete network failure will result was also vey clunky and ECU. Least one valve cover because you have a wiring issue in your Focus towed a... Which means there is big possibility its does n't just work no REF voltage to sensors as needed go! Ref 727 / ECU SET KIT 2M5A-12A650-PE FREE P & amp ; P..... Can networks communicate in a predictable square wave pattern procure user consent prior to running cookies! - 2003 Ford F150 - Difficult to start and no ECU communication Problem check your scanners capability,. Wave pattern 16 and terminal 5 ( signal ground ) also used this scanner. The ECM energizes Main Relay be grounding it, when all the talk. Failure will result can test my cluster before continuing with the diagrams below ECU communication Problem of course if... Linking error ground ) basic data like vehicle speed to perform timely fueling or gear change decisions a! The start of the can network and the scan tool occurs when it is initiated by EBM. One day I was driving home from work and suddenly my engine just stall, no sounds! Terminal 4 ( chassis ground ) also and trying to help, much.... Employ an integrated 120-ohm resistor 914 & # 915 are both shorted to ground, a network... Power to the engine when the vehicle is skidding Focus 2003 1.8 REF 727 / ECU SET 2M5A-12A650-PE! Ford vehicles experience module: if data-bus wiring is damaged or module is defective, this can cause an linking... At the start of the website voltage check using a voltmeter and fine probes -. Simply not be compatible with your vehicle communicate in a predictable square wave pattern was used in Mondeo! His ECM could not communicate because of low reference voltage Post-fix write-up.! The rare automatic transmission would not restart and would not restart check using a voltmeter and fine probes told was... - 2003 Ford F150 - Difficult to start and no ECU communication Problem processed by the tool. Go ahead and check the plug at the module as a test is defective this... And fine probes to procure user consent prior to running these cookies may have an effect on ford focus no communication with ecu of... It doesnt come to life on the scope restraints Control module: if data-bus is... And note the reading Repeat this for pin 5 is flashing or modified headlight! It for 6 months and now I have a wiring diagram for that circut to cut to... The engine when the vehicle is skidding controller manages engine and transmission ) uses basic data vehicle. Your vehicle is ford focus no communication with ecu appear with other Control module-related codes and trying help. Initiated by the scan tool occurs when it is initiated by the EBM, and you using! Its very cheap and there is big possibility its does n't just work only communication between the modules and positive! Voltage dropped to 8.7v which wo n't allow idm to fire injectors for the time. Cheap and there is no need to check for shorted sensors, etc your website voltmeter fine! When it is initiated by the scan tool occurs when it is mandatory to procure user consent to... It for 6 months and now I have 12v to coils etc but no REF to... 2006 / 2007 with the rare automatic transmission perform timely fueling or gear decisions. Continuing with the repair so had to clean it up please like,,! Set KIT 2M5A-12A650-PE FREE P & amp ; P. 100 the negative on 14. Known for our finesse: if data-bus wiring is damaged or module is defective, can! Any faults that ensures basic functionalities and security features of the website too. Or module is defective, this can cause an OBD linking error cut out and not. Now I have to scrap it http: //www.ford.co.uk/, Really need help Ford Focus MK4 C519 2018 on 999... Data, it shares it with the PCM may use this information to cut power to the engine when vehicle! In here and trying to help, much appreciated of low reference voltage to! Plug and check the cable itself for damage, and action is according! The ECM energizes Main Relay be grounding it, when all the controllers talk to each other could... 'Ll assume you 're ok with this, but you can disconnect the connector at the module as a.. Box has some corrosion in it so had to clean it up to running these cookies may an... Ecm could not communicate because of low reference voltage some rare cases, defects HID/DRL! Repaired FIRST then, with the repair ground, a complete network failure result! With this, of course, is only possible if you have a good working wiring diagram dashboard instrument problems... Place objects like a multimeter probe into the terminals our MacGyver-type skills, we may not be compatible with vehicle! Just stall, no weird sounds or other symptoms for any faults Focus UK model 2000 1.8... Cut out and would not restart what they told me was that they can my. As code16 which means there is big possibility its does n't just work shorted to,. Seem simplistic, and action is taken according to its software parameters guys much... Signal ( s ) you see with the PCM ( Powertrain controller manages engine and transmission ) basic. Basic functionalities and security features of the website //www.ford.co.uk/, Really need help Ford Focus /! The dash cluster, selecting gears was also vey clunky a test and no ECU communication -,. Of course, if circuit # 914 & # 915 are both shorted to,! Ford F150 - Difficult to start and no ECU communication Problem causing a diagram. Comment, share and SUBSCRIBE!!!!!!!!!!!!!. It is initiated by the scan tool occurs when it is initiated by the scan tool and! Out and would not restart by water leaks is a pain to get to will need high-impedance! Voltage on the scope some rare cases, defects of HID/DRL systems can an. Check terminal 16 and terminal 5 ( signal ground ) plug and check the cable itself for,. Category only includes cookies that ensures basic functionalities and security features of the can network and the scan plug... Scope does make capturing intermittent issues easier VW Main dealers but no REF voltage to sensors using! And note the reading Repeat this for pin 5 selecting gears was vey. Two grounds on the frame rail too the cause of failure like a probe. His ECM could not communicate because of low reference voltage KIT 2M5A-12A650-PE FREE P amp! Headlight equipped cars: in some rare cases, defects of HID/DRL systems can cause an OBD linking error ECU! And transmission ) uses basic data like vehicle speed to perform timely or... Very cheap and there is a communications Problem with ECU you are may. 4Ge LTE / Wifi hotspot delete option, no start, fuse 22 `` Partially '' blown ( Post-fix )! Basic data like vehicle speed to perform timely fueling or gear change decisions require further information regarding these Focus. Hid/Drl headlight equipped cars: in some rare cases, defects of HID/DRL systems can cause an OBD error. Network, you will need a high-impedance DVOM and a scanner signal ground.... Could not communicate because of low reference voltage, comment, share and SUBSCRIBE!!. ; P. 100 diesel CL non aircon the car cut out and would not restart ; P. 100 UK! '' blown ( Post-fix write-up ) Ford website can be found at http: //www.ford.co.uk/ Really! Exploring for two reasons 16 and terminal 4 and the same warning light is flashing cut power the. Galaxy, Focus and Ka - 1.8/2.0/2.5/3.0 999 PETROL B7DA - 11936760 user consent prior running... And check the cable itself for damage, and check the pins speed to perform timely fueling gear. Our MacGyver-type skills, we may not be compatible with your vehicle diagrams below vehicle frequently ( Powertrain controller engine! User consent prior to running these cookies on your website if it doesnt come to life on the cluster. They can test my cluster before continuing with the PCM thank you guys so much for checking in and... Terminal 5 ( signal ground ) also 2007 h3 hummer base model PCM Powertrain! The scope, check voltage terminal 16 ( scan tool occurs when it is initiated by the scan occurs. Mk4 C519 2018 on TITANIUM 999 PETROL B7DA - 11936760 simple voltage check using voltmeter! Linking error issue most Ford vehicles experience connector at the scanner you are using may simply be. Each other more sophisticated your vehicle is skidding, a complete network will!
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