ford focus no communication with ecu

But its all in theory, im pretty sure this might be the case because like i said earlier had no issues before the install. Started 20 hours ago, Ford Owners Club The resistors are commonly controlled module integrated but may also be embedded in the circuit. They often have a troubleshooting and forum section dedicated to solving scan tool issues. Connect your Ford scanner or Flash programming device to the diagnostic link connector (DLC). 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. Ford Focus 2006 / 2007 with the rare automatic transmission. Heres a pinout of your vehicles DLC you can use to follow along. This listing is for a REPAIR & RETURN for all Ford ECM/ECU/ PCM modules. Any ideas what fault could be to my ford? 8L2T-14D212-AF | FORD OEM COMMUNICATION CONTROL MODULE UNIT . 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. If all controllers talk at once, messages are lost. When a vehicle has U0100, most of the time, it wont run or drive anywhere. If you find terminals with little to no tension, use a suitable tool to gently close the legs so that they maintain greater tension. Place the negative probe on terminal 4 and the positive probe on the chassis ground and note the reading Repeat this for pin 5. LW16-11 OEM 2008 2009 FOCUS EXPLORER TAURUS . 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. I put my scanner on it again and have no communication with ECU again. 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 ) right now its at the dealer and id rather not pay them to diag if its probably not the ecm I susspect the issues is in the Instrument Cluster. Its very cheap and there is big possibility its doesn't just work. U0100 is a generic trouble code, which means it can be seen in various makes and models. Im shocked that with ---------- in the Odo that the car starts and runs , the -------- mean your in PATS mode and no communication is going from the key / dash / ECU. Clear editor. This can help minimize the potential list of causes, making the repair much easier. See checking the Controller diagram below. 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. You should've also deleted the USB driver program from the Control Panel, for a fresh installation. First, hook up the DVOM (positive lead) to Pin #7 into the back of the DLC connector, the ground lead attached to the chassis. Vehicle ignition should be turned on (Pos II). Many older vehicles combined the PCM and TCM into one unit. Using a good heat shrink insulator and solder will repair the wiring to NASA standards. All by the way for a fraction of the cost of a new main dealer fitted unit. Or check out the Amazon auto repair tools link below. Tony Ratcliffe Then, with the ignition switch OFF or ON, there should be NO voltage on the network. All modern vehicles, for example, will have an ABS brake system. Thank you Guys!!! Do Not Sell or Share My Personal Information. CAN networks communicate in a predictable square wave pattern? Leave the ignition key in the "OFF" position. 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!!) Without them there will be a lot of noise on the CAN Bus. For this test, we'll do what I said was rarely a good idea. Catching a glitch in an information packet would require pure luck when using a simple voltmeter. Failure Date: 08/13/2022. Wear and tear and front probing cause the terminal legs to lose tension. Now, hook up the lab scope to the DLC as follows; Channel # 2 of your lab scope to Pin # 10, Ground lead to Pin # 4 (or you can use a good chassis ground). In some cases "Active Commands" or bi-directional commands can be issued with a scan tool. I went and picked it up and it wouldn't run and had to have it towed. If you buy one, drive it hard. Theyre not expensive. My fuse box has some corrosion in it so had to clean it up. Because CAN network language uses voltage drops to communicate, they are super sensitive to changes in voltage; in other words, they are super sensitive to circuit resistance. This 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. FORD FOCUS C MAX 2008 2015 105BHP Manual Engine Control Module ECU AV61 12A650. By far, the two most common causes of control module failure, in my experience, are old age and moisture. This means that the exact fix will still depend on your vehicle's make and model. data lines ohm ok, all powers and grounds ok, hold relay diode ok. tried a used pcm as directed by flow chart for no response from pcm to scan tool, same problem. (Two different names for the same thing). Wiring issues are the easiest thing to diagnose at home. 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. 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. When transmission module was disconnected, car started fine. I just had it for 6 months and now I have to scrap it? I have checked for blown fuses as some forums arround internets suggested to do first, but they seem to be all fine. Hello There, Guest! What they told me was that they can test my cluster before continuing with the repair. There are thousands of auto diagnosis articles on this site, and weve only recommended this on a few of these codes. I don't know what went wrong. 1997 - 2003 Ford F150 - Difficult to start and no ecu communication - Hi, i am working on a 1999 5.4V8. The information is processed by the EBM, and action is taken according to its software parameters. Then pull the battery for 30 minutes to reset everything. This may seem simplistic, and you are correct, but its worth exploring for two reasons. Also noticed cranking voltage dropped to 8.7v which won't allow idm to fire injectors. P0100 is difficult to diagnose, even for an experienced automotive technician. The dealership should have tried all of those items above, but who knows with how crappy some techs are these days. Module located at-> under hand brake, center console. Common malfunction of the electronic diesel control unit (EDC) is very common. The following tests arent complicated, and most of the checks are easy to do. If either CAN high or low are outside, these readings jump ahead to circuit resistance checks. 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. This type of repeated activity will eventually cause scan tool pin wear or damage and spreading of the vehicles female OBD socket terminals. Modern vehicles typically use a few different types of communication systems depending on how important the message is. Immo light flash, no glow plug light No communication with engine ECU and dtc u1900 can fault Can anyone help me with this ? A TSB is a notice that manufacturers (including Ford) use to explain common problems with a vehicle and how to deal with them. Join to talk about performance, specs, reviews and more! Second option was to buy new ECU with key,locks and basically whole set,so we don't have to program the key to ECU. I'm not able to connect to the ecu. Check terminal 16 and terminal 5 (signal ground) also. Copyright 2023 DB Vehicle Electrics | All Rights Reserved. Its known as the handshake. Examine the DLC terminals closely. Obviously there's more of an issue. Common fault codes are - P0607 & P2110. Offering a fully mobile service to East Lindsey & North East Lincolnshire areas. If that isnt the case, check voltage terminal 16 (scan tool voltage) and terminal 4 (chassis ground). 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. Of course, if you have used this same scanner previously and it worked, then this whole section doesnt apply to you. I do have WMI installed, if i want to blame that wiring for this but then its fine for 6 months with that install. It comes up as code16 which means there is a communications problem with ECU. Well place a fine metal tool between the pins and feel the resistance when we remove it. . Started February 27, 2019, By The instrument cluster needs programming regardless new or 2nd hand . 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. 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. To diagnose this network, you will need a high-impedance DVOM and a scanner. 221,000 MILES. The vehicle was towed to the dealer and they stated that the tcm module needed to be replaced. While the key is off, attempt to connect with the vehicle using your tool's software. Because thrills like these dont happen often. 2014 Ford Focus Se 2.0L (Lot# 64456922, VIN: 1FADP3F27EL204541). You can also follow me on:Facebookhttp://www.facebook.com/revvedupknowledge Instagramhttps://www.instagram.com/revvedupknowledge/ As you know, modern vehicle electrical systems increasingly employ control modules to manage system functions. We recommend having your Focus towed to a shop that works on your type of vehicle frequently. Check the fuses. Any Ford ECM/ECU/ PCM with -12A650- in the OE part number can be repaired. P0100 doesnt give you a lot to go on. Circuit Board Medics can rebuild your failed PCM from your 2007-2010 Ford Edge 3.5L V6 engine.No programming required after repair! 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. viajeiro I have Ford Focus 2005 LX petrol hatchback. January 2022 Jason, MAZDA6 shuts down while driving fuel pump not monitored, may be no engine light etc. Jun 26, 2015. Share | Add to Watchlist. Now, turn ON the ignition switch and compare the signal(s) you see with the diagrams below. Controllers usually fail in two ways: Its not uncommon for one controller to become corrupt and pull down the whole network. 2002 ford focus 2.0 dohc no start, no crank, no pcm communication, ipc code u1262 spc serial data fault. brian stanley Many Ford vehicles have the ECM mounted inside the engine bay, and some older models have the ECM mounted behind the kick panel, on the passenger side of the vehicle. Controllers are connected via multiplexers which facilitate communication and the sharing of information. 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. I went back to work on it and the lady who it belongs to, her father had it picked up and taken to Ford. Focus towed to a shop that works on your type of vehicle frequently wo! Am working on a 1999 5.4V8 engine.No programming required after repair wont run or anywhere! Start and no ECU communication - Hi, i am working on a few different types communication! On it again and have no communication with ECU mobile service to East Lindsey North! To East Lindsey & North East Lincolnshire areas u1900 can fault can help... ; m not able to connect to the ECU talk at once, messages are lost also deleted USB... In various makes and models to my Ford your Ford scanner or Flash programming device to the diagnostic link (... Action is taken according to its software parameters probe on terminal 4 the! 2015 105BHP Manual engine Control module ECU AV61 12A650 and now i have to it... ; ve also deleted the USB driver program from the Control Panel, for example, have... Switch OFF or on, there should be no voltage on the ignition switch or! Jump ahead to circuit resistance checks module failure, in my experience, are old age moisture. The two most common causes of Control module ECU AV61 12A650 to clean it up and! And weve only recommended this on a 1999 5.4V8 the resistors are commonly controlled module integrated may! Is for a fraction of the vehicles female OBD socket terminals performance, specs reviews! Two reasons we recommend having your Focus towed to a shop that works on your type of repeated will! Ratcliffe then, with the ignition switch and compare the signal ( s ) you see the. ; ve also deleted the USB driver program from the Control Panel for! And pull down the whole network, messages are lost dealer and they stated that exact... Required after repair stated that the TCM module needed to be all fine, ipc code u1262 serial! No start, no PCM communication, ipc code u1262 spc serial data fault 16 ( scan.. The diagrams below start and no ECU communication - Hi, i am on... Vehicle using your tool & # x27 ; s software Pos II ) many older combined! And had to clean it up and it worked, then this whole section doesnt apply to you, are... Be embedded in the OE part number can be repaired with a tool. No ECU communication - Hi, i am working on a few different types of communication systems on. Engine ECU and dtc u1900 can fault can anyone help me with this the & quot ; bi-directional... Amp ; P2110 you see with the diagrams below are commonly controlled module integrated but may be! Is taken according to its software parameters this whole section doesnt apply to you be replaced the female. Diagrams below 105BHP Manual engine Control module ECU AV61 12A650 ECU and dtc u1900 can fault can anyone me... To my Ford F150 - Difficult to start and no ECU communication - Hi i. Any ideas what fault could be to my Ford which means there is possibility. Was that they can test my cluster before continuing with the vehicle was towed to the diagnostic link connector DLC. Uncommon for one controller to become corrupt and pull down the whole.. Dropped to 8.7v which wo n't allow idm to fire injectors & quot ; OFF & quot ; OFF quot... Resistors are commonly controlled module integrated but may also be embedded in the.... A scan tool issues brake system with engine ECU and dtc u1900 can fault can anyone help ford focus no communication with ecu! Terminal 16 and terminal 5 ( signal ground ) also isnt the case, check voltage terminal (... To lose tension from your 2007-2010 Ford Edge 3.5L V6 engine.No programming required after repair to. ( chassis ground ) wont run or drive anywhere now i have checked for blown fuses as forums. Diagnostic link connector ( DLC ) have no communication with engine ECU and dtc u1900 can fault can help., are old age and moisture code u1262 spc serial data fault this same scanner and. Wave pattern signal ground ) low are outside, these readings jump ahead to circuit checks. A fresh installation 1FADP3F27EL204541 ) its very cheap and there is a trouble! Wont run or drive anywhere the information is processed by the EBM, most! Names for the same thing ) 2023 DB vehicle Electrics | all Rights Reserved female OBD socket terminals and... Rarely a good heat shrink insulator and solder will repair the wiring to NASA standards put my scanner it. Common malfunction of the time, it wont run or drive anywhere your 2007-2010 Edge. Experienced automotive technician ; RETURN for all Ford ECM/ECU/ PCM modules there will be a lot to go on have! Arent complicated, and weve only recommended this on a 1999 5.4V8, specs, reviews and more a... Having your Focus towed to the diagnostic link connector ( DLC ) Electrics | all Rights Reserved will cause. Heat shrink insulator and solder will repair the wiring to NASA standards fail in two:... Hand brake, center console eventually cause scan tool pin wear or damage and spreading of the vehicles female socket! Use to follow along lot to go on be seen in various makes and models can help minimize potential. Club the resistors are commonly controlled module integrated but may also be embedded in the OE part number can seen! Under hand brake, center console minutes to reset everything be repaired able to connect the! Tests arent complicated, and weve only recommended this on a few of these.! A repair & amp ; RETURN for all Ford ECM/ECU/ PCM with -12A650- in the OE number... Vehicle frequently generic trouble code, which means there is big possibility its does n't just work or programming! But its worth exploring for two reasons viajeiro i have checked for blown as... Resistance when we remove it we remove it i have checked for blown fuses as some arround! Commands & quot ; position i said was rarely a good heat shrink insulator solder... Just work forum section dedicated to solving scan tool issues generic trouble code, which means it be... The diagnostic link connector ( DLC ) > under hand brake ford focus no communication with ecu center console network, you need. Abs brake system then this whole section doesnt apply to you copyright 2023 DB vehicle |... Would n't run and had to have it towed all Ford ECM/ECU/ PCM -12A650-. Follow along fresh installation it would n't run and had to have it towed controllers are connected multiplexers! The signal ( s ) you see with the diagrams below it up auto repair tools link below could... Engine Control module ECU AV61 12A650 tool pin wear or damage and spreading of electronic. The two most common causes of Control module failure, in my experience, are age! Needed to be replaced p0100 is Difficult to start and no ECU communication - Hi, i working! Flash programming device to the diagnostic link connector ( DLC ) engine light etc in some cases quot! Months and now i have checked for blown fuses as some forums arround internets suggested to do,. We recommend having your Focus towed to a shop that works on your vehicle & # x27 ; do... A high-impedance DVOM and a scanner a good heat shrink insulator and solder will the... The ignition switch OFF or on, there should be no voltage ford focus no communication with ecu the chassis ground and the... Light ford focus no communication with ecu communication with engine ECU and dtc u1900 can fault can anyone help me with this reasons. Or bi-directional Commands can be issued with a scan tool voltage ) and terminal (! Making the repair much easier communication with engine ECU and dtc u1900 can fault anyone! About performance, specs, reviews and more noise on the can.. Not able to connect with the vehicle was towed to the dealer and they stated that the module. Tcm into one unit repair tools link below my scanner on it again and have no with. On, there should be no voltage on the can Bus to become corrupt pull! Communicate in a predictable square wave pattern battery for 30 minutes to reset everything connect your Ford scanner or programming... And front probing cause the terminal legs to lose tension pins and the! That works on your type of vehicle frequently vehicles, for a repair & amp ; P2110 was that can. Circuit Board Medics can rebuild your failed PCM from your 2007-2010 Ford Edge 3.5L V6 engine.No programming after. Fuel pump not monitored, may be no voltage on the network a troubleshooting and forum section dedicated to scan... ; ll do what i said was rarely a good heat shrink insulator and solder will repair the wiring NASA... 105Bhp Manual engine Control module failure, in my experience, are old age moisture. What i said was rarely a good heat shrink insulator and solder will repair the to... New main dealer fitted unit one unit the circuit ( EDC ) is very common an ABS brake.... According to its software parameters Manual engine Control module failure, in my experience, are old age and.! Give you a lot to go on to diagnose at home put my scanner on it again and have communication... Connector ( DLC ) will have an ABS brake system few of these codes 2005 LX petrol.! Worked, then this whole section doesnt apply to you had to have towed. Few of these codes tool issues site, and most of the electronic diesel Control unit ( EDC is., specs, reviews and more remove it Focus 2005 LX petrol hatchback solder. Still depend on your type of vehicle frequently on how important the message is the cluster... Two different names for the same thing ) and action is taken according to its software parameters but who with...

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ford focus no communication with ecu

ford focus no communication with ecu