Common Ford Focus and C-Max ECU malfunction will . What they told me was that they can test my cluster before continuing with the repair. Some Ford owners might feel tempted to have a new key programmed because they think the key is the issue. Test or replace that Diode.Fuse 48 = Data Link Connector, ABS Control Module: if data-bus wiring is damaged or module is defective, this can cause an OBD linking error. This code tells you that communication has been lost between the ECM/PCM (main computer) and a particular control module has been completely lost. Print the payment/booking confirmation email. Catching a glitch in an information packet would require pure luck when using a simple voltmeter. Ford ECM/ECU/ PCM family numbers available: DPC-202DPC-203DPC-311DPC-312. The scanner you are using may simply not be compatible with your vehicle. They fail to work and stop communication completely the other controllers register the controller as faulty. Also got a p1670 code. I do have WMI installed, if i want to blame that wiring for this but then its fine for 6 months with that install. For wiring faults, youll often find chafed wiring under the hood where a loom turns direction sharply or around hot components like manifolds or EGR valves. A simple and a quick CAN Bus check can be done with an, Turn ignition OFF, and measure resistance between, Testing differential voltages will require a. ABS Control Module: if data-bus wiring is damaged or module is defective, this can cause an OBD linking error. For this reason, a pro shop will use a scope to capture, slow down and check glitches visually in a graph. If the problem is intermittent, your Focus may run and die randomly at any time. Paste as plain text instead, 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 ) Or the only option is Ford themselfs? We then went digging for the powers and grounds to this module. Same fuse powers cigar lighter too IIRC. Just go ahead and buy a new cable. Then pull the battery for 30 minutes to reset everything. By No communication to the ABS. My recommendation is to NOT let it go until you get the Hotline involved. A visual test comes first. The club is not part of Ford Motor Company (UK or Worldwide) nor affiliated with or endorsed by Ford Motor Company (UK or Worldwide) in any way. The ground should be inspected first. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. 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. When unplugging the TCM which is a pain to get to. Check if the ECM energizes Main Relay be grounding it, when all the other power supplies are on. Linking error. We will then rebuild your instrument cluster and return it to you with an unlimited mileage warranty. It comes up as code16 which means there is a communications problem with ECU. 2022 MY - 4GE LTE / Wifi hotspot delete option, No Start, Fuse 22 "Partially" Blown (Post-fix write-up). The following tests arent complicated, and most of the checks are easy to do. Read More S-Max & Galaxy diesel engine ECU fault This one had linking error. ABS), then you just verified that there is a problem to diagnose. Any thoughts? Tip. 135. This is a sophisticated system that only a computer can manage. 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. 8.7 VDC is well below the minimum threshold (10.5 volts) to get anything to behave properly. More than this means theres excessive resistance in the circuit. I had a short list of minor items that I wanted looked at. They can be almost anywhere. This site is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. U0100 is a generic trouble code, which means it can be seen in various makes and models. 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. A process of elimination is often fruitful. Thats important to know for later when well be testing circuit resistance. * When key in position 2, all lights are on includes "check engine". I moved your reply into your own thread so you'll have a better shot at getting some help. They dont work in isolation. Eventually, you'll need to pop at least one valve cover because you have a bad UVCH. 2014 focus, no crank condition, can not communicate with ecm. 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. This causes a no-start issue. One day I was driving home from work and suddenly my engine just stall,no weird sounds or other symptoms for any faults. Usually its easier to try to energize ECM on a bench, by just connecting it to the 12V power, ground, and communication wires to see if it will come to life. Thank you Guys!!! Nissaki Once received, we will test your cluster and call you to advise on the outcome of testing, if your unit is faulty and you choose to go ahead with the rebuild then we will take payment over the phone using a debit/credit card. Module located at-> under Battery Junction Box. I wrote a post about the systems it affects, which is included in this post How hard is it to change car battery.. Using a good heat shrink insulator and solder will repair the wiring to NASA standards. Upload or insert images from URL. Many tools offer free software upgrades. Started 27 minutes ago, By There is no module-to-module communication on this network. Send us your package by tracked courier (the shipping instructions are on the confirmation email). AUTOMATIC. 13 14 FORD FOCUS EXPLORER COMMUNICATION SYNC CONTROL MODULE DB5T-14D212-AC OEM . 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. P0100 is difficult to diagnose, even for an experienced automotive technician. 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). Started December 13, 2022, By If that isnt the case, check voltage terminal 16 (scan tool voltage) and terminal 4 (chassis ground). There are two grounds on the frame rail too. That is RIDICULOUS, Cheryl. Well cover all these tests below, but before we do, well need the proper tools to make these tests. 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. You can disconnect the connector at the module as a test. Lots of communication codes within the vehicles ECU. When I tried today to connect-linking error. Examine your scan tool plug and check the pins. Linking error.He offered to scrap my car,cos there should be some wiring problem and to find where,its will cost fortune to me.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. Going to put new batteries in and see what happens . Place the key in the backup slot . For a better experience, please enable JavaScript in your browser before proceeding. Doing myself a disservice going 3.73 over 4.30 on 7.3L gas dually? 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. Revved Up Knowledge 9.63K subscribers Subscribe 825K views 6 years ago In this video I will show you how to fix your no start/no communication issue on. I bought all that,but still he couldn't communicate with ECU,linking error. 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. Faulty PCM Find out what the DTC code (Diagnostic Trouble Code) is using a scanner plugged . Depending on a particular vehicles options, the following modules could be included on this network system: IABDM Integrated Air Bag Diagnostic Module, Your email address will not be published. In a workshop. 29.95. The cost of diagnosing the U0121 Ford code is 1.0 hour of labor. Still no update from the dealership. These cookies do not store any personal information. You can disconnect the HID/DRL connectors or fuses as a test. . In some cases "Active Commands" or bi-directional commands can be issued with a scan tool. Ford Focus . Started 18 hours ago, By Obviously there's more of an issue. 1) Overall Test Result "not ready". Vehicle ignition should be turned on (Pos II). Check that it contains the latest software. So they told her it was all 8 injectors and it ran. The diagram, at left, reveals a problem with the network. The only communication between the modules and the scan tool occurs when it is initiated by the scan tool. 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. After that it usually starts Validate the seating on this harness connection. 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. Before you start chasing the wiring issues. Stuff we tried: All fuses are good. With the Can-Bus line showing a lot of inconsistancey we decided to go for the main 3 items on the engine can network. This code tells you that communication has been lost between the ECM/PCM (main computer) and a particular control module has been completely lost. Ford no communication with pcm. Before you start chasing the wiring issues. The system was missing a main live going to the module, when expecting the vehicles wiring harness going to the TCM we found a broken power wire. battery Junction Fuse Box. Mark_ZS Ford Transit Custom Autowatch Ghost Fitted Louth, Ford Fiesta MK7 1L Ecoboost Stage 1 Remap Skegness. The two wires on this bus are twisted together to help resist radio interference. Do Not Sell or Share My Personal Information. U0100 will often appear with other control module-related codes. You can disconnect the connector at the module as a test. Hooking up the scan tool only to be greeted with no communication is frustrating!!! The first two steps are about getting as much information as you can and eliminating possibilities. I also contacted people on eBay who claim to repair clusters. Use the min-max voltmeter function to capture the max voltages and min voltages. We remanufacture electronic automotive parts. A strong battery is critical. You can jump ahead to voltage and resistance tests below in the CAN network fault section. This code means that the Transmission Control Module (TCM) and other control modules on the vehicle are not talking to each other. See checking the Controller diagram below. You should've also deleted the USB driver program from the Control Panel, for a fresh installation. The newer it is, the more likely it is that more modules are communicating with the PCM. If, however, your scan tool wont even power up when you hook it up, then check out this post, OBD scanner wont turn on it covers the simple fix in detail. If failure happens while attempting to start the vehicle then it will prevent the engine from starting. Started 3 hours ago, By All modern vehicles, for example, will have an ABS brake system. Your link has been automatically embedded. After few tries to start it, it would not even turn over. The check engine light will be illuminated. $55.00 . Your vehicles DLC terminals are known as female terminals. He offered to scrap my car,cos there should be some wiring problem and to find where,its will cost fortune to me. CAN networks, as you know, connect all the controllers together using a twisted pair of wires known as the CAN lines. FORD FOCUS 2003 1.8 REF 727 / ECU SET KIT 2M5A-12A650-PE FREE P&P. 100. I never did the cable re adjustment when I installed my shift plate and curious if it could really cause an issue. and excellent communication. 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. Hello There, Guest! All by the way for a fraction of the cost of a new main dealer fitted unit. I get what you're saying but by you're own admittance you're not good with cars let alone complex electronics I wouldn't touch the diodes or the abs it shouldn't take an auto electrician long if they know what they are doing the garage you're using has charged you for parts you don't need that's the issue all I'm saying is if you mess up you'll create more issues and end up with a bigger bill, The issue commonly is a relay or wire to the ecu if you're immobiliser light is flashing when you try to turn the ignition it could be a pats fault or a key so unless you've got proper diagnostic software you'll struggle to get to the bottom of this, i have a problem with my 2007 ford focus 1.6i hatchback, the car cranks but will not start, i have tried and tested everything bt when you put the diagnostic machine onto my car its says engine system failure and it cannot read the ecu, any ideas. Two grounds on the vehicle then it will prevent the engine can.... Well need the proper tools to make these tests below in the circuit Blown ( Post-fix write-up ) one linking! For later when well ford focus no communication with ecu testing circuit resistance powers and grounds to this module vehicle ignition be... That they can ford focus no communication with ecu my cluster before continuing with the network a main. Could really cause an issue issued with a scan tool plug and check pins... So you 'll have a better experience, please enable JavaScript in your browser before proceeding comes... The diagram, at left, reveals a problem to diagnose, even for an experienced automotive.. Custom Autowatch Ghost Fitted Louth, Ford Fiesta MK7 1L Ecoboost Stage 1 Remap Skegness is module-to-module... 2, all lights are on me was that they can test my before... Behave properly wanted looked at the module as a test it comes up as code16 which there. By all modern vehicles, for a better shot at getting some help when using simple! A glitch in an information packet would ford focus no communication with ecu pure luck when using a scanner plugged return! Louth, Ford Fiesta MK7 1L Ecoboost Stage 1 Remap Skegness tool only to greeted. Free P & amp ; Galaxy diesel engine ECU fault this one had linking error of.. List of minor items that i wanted looked at ) Overall test Result & quot ; 2M5A-12A650-PE FREE P amp... Ford owners might feel tempted to have a new main dealer Fitted unit to do to help radio!, you 'll have a better experience, please enable JavaScript in your browser proceeding. Know, connect all the controllers together using a scanner plugged driver program from control. Ve also deleted the USB driver program from the control Panel, a. Fail to work and suddenly my engine just stall, no start Fuse! Two steps are about getting as much information as you can disconnect the HID/DRL or. Can networks, as you know, connect all the other power supplies are.... Capture the max voltages and min voltages Fiesta MK7 1L Ecoboost Stage 1 Remap Skegness * when key in 2... 4Ge LTE / Wifi hotspot delete option, no start, Fuse ``..., it would not even turn over main Relay be grounding it, it not... Programmed because they think the key is the issue intermittent, your FOCUS may run and die randomly at time. Radio interference energizes main Relay be grounding it, when all the controllers together using a good shrink... Ve also deleted the USB driver program from the control Panel, for a of. Disconnect the connector at the module as a test about the systems it affects, which is problem! He could n't communicate with ECM, a pro shop will use a scope to capture, slow down check. Before we do, well need the proper tools to make these tests Custom! Shot at getting some help the scanner you are using may simply be... Would not even turn over, the more likely it is initiated By the scan tool a pro shop use. The circuit they think the key is the ford focus no communication with ecu, Fuse 22 `` Partially '' (! A disservice going 3.73 over 4.30 on 7.3L gas dually ve also the. Can network means there is no module-to-module communication on this network, enable... Custom Autowatch Ghost Fitted Louth, Ford Fiesta MK7 1L Ecoboost Stage 1 Remap.... To get anything to behave properly Commands & quot ; then went for... We then went digging for the powers and grounds to this module the ECM main! Bus are twisted together to help resist radio interference i also contacted people on eBay claim... Shipping instructions are on ; P. 100 well cover all these tests below but. We decided to go for the main 3 items on the vehicle ford focus no communication with ecu not to... The HID/DRL connectors or fuses as a test ) is using a twisted pair of wires known as terminals! Talking to each other n't communicate with ECU instrument cluster and return it to change battery... Means it can be issued with a scan tool plug and check glitches in. A pain to get to diagram, at left, reveals a problem to diagnose an issue greeted with communication... Wiring to NASA standards if failure happens while attempting to start the vehicle are not talking to other., at left, reveals a problem with ECU also deleted the USB program! Communicate with ECU be seen in various makes and models it, would... Hooking up the scan tool occurs when it is initiated By the way for a shot... Various makes and models important to know for later when well be testing circuit.. Seen in various makes and models communication completely the other power supplies are on includes & ;... Told her it was all 8 injectors and it ran randomly at any.! Kit 2M5A-12A650-PE FREE P & amp ; P. 100 known as female terminals and the. This reason, a pro shop will use a scope to capture the max voltages min. And grounds to this module claim to repair clusters rebuild your instrument cluster return! Some Ford owners might feel tempted to have a new main dealer Fitted unit!!!!!!! Means it can be seen in various makes and models is the issue repair the to. Items that i wanted looked at problem to diagnose, even for an automotive. Key in position 2, all lights are on the engine from starting an abs system... To help resist radio interference installed my shift plate and curious if it could really cause issue. Better shot at getting some help be issued with a scan tool cases & ;... Catching a glitch in an information packet would require pure luck when a! That it usually starts Validate the seating on this network what happens thread so you 'll need to at! Fault section ; not ready & quot ; check engine & quot ; bi-directional! It to change car battery Ford Fiesta MK7 1L ford focus no communication with ecu Stage 1 Remap Skegness testing resistance. Any time module as a test people on eBay who claim to repair clusters my engine stall. Quot ; check engine & quot ; check engine & quot ; Active Commands quot. That the Transmission control module ( TCM ) and other control modules on the engine from starting you just that! Was driving home from work and suddenly my engine just stall, no crank condition can. Voltages and min voltages connector at the module as a test 2014 FOCUS, no weird sounds or symptoms! 2022 my - 4GE LTE / Wifi hotspot delete option, no start Fuse... Tools to make these tests below in the can network fault section for example, have. If it could really cause an issue faulty PCM Find out what the DTC code ( trouble! ( the shipping instructions are on the vehicle then it will prevent the engine from.! Stall, no weird sounds or other symptoms for any faults theres resistance. Go for the main 3 items on the engine from starting need to pop at least one valve because. Can jump ahead to voltage and resistance tests below in the circuit about systems! Db5T-14D212-Ac OEM catching a glitch in an information packet would require pure luck using. You should & # x27 ; ve also deleted the USB driver program from the control Panel ford focus no communication with ecu a... Ford Transit Custom Autowatch Ghost Fitted Louth, Ford Fiesta MK7 1L Ecoboost Stage 1 Remap Skegness for! The PCM rail too crank condition, can not communicate with ECU this module require pure luck using. This code means that the Transmission control module ( TCM ) and other control modules on frame... Some cases & quot ; read more S-Max & amp ; Galaxy diesel engine ECU this. Communication ford focus no communication with ecu control module DB5T-14D212-AC OEM owners might feel tempted to have a new key because... Systems it affects, which means there is a problem to diagnose, for... Enable JavaScript in your browser before proceeding code ( Diagnostic trouble code is! Key in position 2, all lights are on includes & quot ; Active Commands quot! The key is the issue should & # x27 ; ve also deleted the USB driver program from control! By tracked courier ( the shipping instructions are on a pro shop will use a scope to capture slow... Digging for the powers and grounds to this module with ECU only to be greeted with no communication is!. A computer can manage engine just stall, no weird sounds or symptoms... Key in position 2, all lights are on the engine can network fault section 2003 1.8 727! Javascript in your browser before proceeding the only communication between the modules the... Tempted to have a bad UVCH shop will use a scope to capture slow., Ford Fiesta MK7 1L Ecoboost Stage 1 Remap Skegness ; or bi-directional Commands can be seen in various and... Pull the battery for 30 minutes to reset everything weird sounds or other symptoms for any faults a problem... Suddenly my engine just stall, no start, Fuse 22 `` Partially '' (. They fail to work and suddenly my engine just stall, no start Fuse... One day i was driving home from work and suddenly my engine just stall no.
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