Its known as the handshake. I might go to the dealership on saturday do this myself if it doesn't work i'll remove the short throw shifter. So I decide to do triple check and bought a bit better fault code reader. 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. Customer Support AIM: hpdyno Email: hpdyno@aol.com Phone: 704-249-3745 Site: focus-power.com Elder 1turbofocus sailor Premium Member The smart . This unit was known as the ECU. Your previous content has been restored. But still no communication with the ECU. Doing myself a disservice going 3.73 over 4.30 on 7.3L gas dually? This is a simple voltage check using a voltmeter and fine probes. I've worked for GM, Jaguar, Land Rover, Volvo, Audi, and VW main dealers. I can help you Contact me PM Reply JustJames They can be almost anywhere. 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. Here is an oversimplified wiring diagram example of what wiring you might want to check, before you would condemn the ECM as faulty: CAN Bus in cars is standardized inISO 11898-2 (more details inhere). The ECU aka PCM is powered by a fuse that also feeds the fuel bowl heater. You can disconnect the connector at the module as a test. and excellent communication. You should've also deleted the USB driver program from the Control Panel, for a fresh installation. Each controller has a set time to communicate. A visual test comes first. Module located at-> under battery Junction Box.TCS/Electronic Stability Program Module (car options and model dependent): if data-bus wiring is damaged or module is defective, this can cause an OBD linking error. Each module in the system is connected together using a twisted pair of wires; however, some systems use fiber optics. P0100 is difficult to diagnose, even for an experienced automotive technician. Ok got new batteries in and tested cranking voltage and was in parameters to operate idm. These cookies will be stored in your browser only with your consent. I tried disconnecting the battery but no luck. Controllers, therefore, share information. When the guy was poking around he set the PATS , the ECU thought he was trying to steel the Focus , Ground off or no power to the ECU/PCM Tom Focus-Power: Your #1 Source for Ford Focus Speed, Tuning & Performance! 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). You can disconnect the HID/DRL connectors or fuses as a test. I'd check fuses, electrical connectors, and electrical grounds in the area you were working (especially the grounds in the engine bay). You can disconnect the connector at the module as a test. Thats not to say we disrespect kit or customers vehicles, but working on a workshop floor is all about speed. The two wires on this bus are twisted together to help resist radio interference. You can jump ahead to voltage and resistance tests below in the CAN network fault section. The voltage levels used to create a signal, range between zero and five volts. 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. The cause can now be diagnosed with the aid of a wiring diagram, a component locator, a DVOM, and a healthy dose of patience. So they told her it was all 8 injectors and it ran. There is no module-to-module communication on this network. If it is the heater fuse, disconnect harness from bowl (#8 in pic below) replace fuse, but do not re-connect harness or the fuse will simply blow again. Both tests should read less than .2 volts. No the car is hard to start and misfires like a thunderstrom. This is a common problem for the Focus and C-Max, causes the ESP light to remain on the dash and the following fault code to be reported C1288 Pressure Transducer Main/Primary Circuit Failure. 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. *** I have used Ancel AD410 and O'Reilly store's OBDII scanners, both were not communicated to ECU. They often have a troubleshooting and forum section dedicated to solving scan tool issues. 2008 - 2011 FORD FOCUS SES COMMUNICATION ECU ECM COMPUTER 8L2T-14D212-AF OEM* Sponsored . Your vehicles DLC terminals are known as female terminals. This code tells you that communication has been lost between the ECM/PCM (main computer) and a particular control module has been completely lost. This power steering motor is a very common problem for Ford Focus and C-Max vehicles built between 2010 and 2015. This category only includes cookies that ensures basic functionalities and security features of the website. (not all are used) Look in particular for pins that are bent or pushed into the socket, i.e., a lot shorter than the others. If, on the other hand, resistance is lower or higher than expected but not open, then a faulty controller is a likely suspect. I have to call the dealer and see what's going on. Think about it like your Focuss brain not being able to talk to its hands, legs, or another appendage. The ground should be inspected first. Office hours between 9 AM-5 PM Monday Friday. Brought it to my friend's shop and he hooked it up to his Snapon scan tool and the same thing. This is a sophisticated system that only a computer can manage. Checked fuses and relais. All by the way for a fraction of the cost of a new main dealer fitted unit. The first two steps are about getting as much information as you can and eliminating possibilities. 01130 - ABS Operation Implausible Signal. They fail to work and stop communication completely the other controllers register the controller as faulty. The following tests arent complicated, and most of the checks are easy to do. Some people in warmer climes leave it disconnected. If all controllers talk at once, messages are lost. Copyright 2023 ECU Testing LTD. All Rights Reserved. You can disconnect the connector at the module as a test. This type of repeated activity will eventually cause scan tool pin wear or damage and spreading of the vehicles female OBD socket terminals. Vehicle computers are known by several names and acronyms, and to make things even more exciting, manufacturers use their own names. No Start | U1000 CAN Communication Circuit | 2006 Nissan Frontier, CAN Bus Fault | Faulty Module | Audi TT, No Start, CAN Bus Fault | Bad CAN L wire | Vauxhall Corsa, Multiple Electrical Issues, B-CAN bus fault | Corrosion | 2007 Honda Odyssey. Started 1 hour ago, By When I tried today to connect-linking error. However, they do it at lightning speed. 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. V8. Because thrills like these dont happen often. Next, well pin-drag test the terminals. View Digital Edition Browse Print Archives. Common fault codes are - P0607 & P2110 Ford Focus Dashboard Instrument Cluster - Common problem, Fiesta, B-Max and Transit brakes locking on, Ford Focus 1.8 ECU Fault - Engine Malfunction warning, Fiesta (Mk VI) 2002 - 2008 loss of speedo and mileage, Ford Mondeo III TDCI Turbo Actuator fault, Diesel Pump EDC failure for Fiesta, Focus, Mondeo & Transit, Power Steering (EPS - Electric Power Steering), ECU (Transmission Combined Clutch Actuator), ECU (Comfort / Convenience Control Module), ECU (ELSD - Electronic Limited Slip Differential). Started Yesterday at 03:13 PM, By 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. Because CAN networks use changes in voltage to communicate, they are super sensitive to resistance which, of course, changes voltage. Modern vehicles typically use a few different types of communication systems depending on how important the message is. This Mondeo Mk4 instrument cluster is a very common problem, causing gauges and dash lights to stop working. * When key in position 2, all lights are on includes "check engine". Well, front probe the pins and compare tension. We then went digging for the powers and grounds to this module. Regarding BBBind.com schematic for ECU look under the engine/fuel category. Lots of communication codes within the vehicles ECU. The only communication between the modules and the scan tool occurs when it is initiated by the scan tool. Ian Keys 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. Obviously there's more of an issue. Ford Focus 2006 / 2007 with the rare automatic transmission. 8L2T-14D212-AF | FORD OEM COMMUNICATION CONTROL MODULE UNIT . Read More S-Max & Galaxy diesel engine ECU fault Crank but no start, or no start and no crank. The duty of these units is to control most of the electronic functions. Join to talk about performance, specs, reviews and more! Well place a fine metal tool between the pins and feel the resistance when we remove it. With the Can-Bus line showing a lot of inconsistancey we decided to go for the main 3 items on the engine can network. That's like $1500 plus labor if I am not mistaken. 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. 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. My fuse box has some corrosion in it so had to clean it up. Controllers usually fail in two ways: Its not uncommon for one controller to become corrupt and pull down the whole network. I have tried several scan tools with the same result no communication. I bought all that,but still he couldn't communicate with ECU,linking error. Marteinn Just go ahead and buy a new cable. Now, turn ON the ignition switch and compare the signal(s) you see with the diagrams below. Finding a problem with the plug or cable is easy to fix. The ECU was used in Ford Mondeo, Galaxy, Focus and Ka - 1.8/2.0/2.5/3.0. A blown fuse is often the cause of a scan tool that simply wont power up. But opting out of some of these cookies may have an effect on your browsing experience. Ok Adding New Oil Without Draining? Before you start chasing the wiring issues. For this reason, a pro shop will use a scope to capture, slow down and check glitches visually in a graph. Once received we will test, rebuild and return your instrument cluster with an unlimited mileage lifetime warranty. The PCM is the engine ECU. and a flashing automatic drive logo on the dash cluster, selecting gears was also vey clunky. (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. JavaScript is disabled. I had a short list of minor items that I wanted looked at. Vehicle ignition should be turned on (Pos II). Many a good tech has been caught out by jumping the gun and calling a perfectly good controller faulty, only to find the problem is still present with a shiny new spendy one installed. I put my scanner on it again and have no communication with ECU again. zontjiks, Professional mechanics use them all of the time. Could be partial power from your gauge sweep issue too, pumps get wonky at low volts. They should look similar. $55.00 . The CAN bus connects the PCM to all of the complicated control systems that a modern vehicle has, such as: There can be as many as 18 of these modules. I get asked if scan tools are universal, and so I wrote a post about exactally that and you can check it out here Are OBD scanners universe.. In my last article, I outlined the basics behind getting valuable diagnostic information from the Diagnostic Line Connector (DLC), and how to troubleshoot potential problems with the communications network. The other controllers and scan tools cant understand this constant gibberish and simply dont get a chance to shake hands with the other healthy controllers, as the CAN lines are always busy. Each system will have its own dedicated control module, also called controllers. After few tries to start it, it would not even turn over. They replaced the injectors? To help stabilize resistance, the CAN circuit employs two 120-ohm resistors in parallel. Using a good heat shrink insulator and solder will repair the wiring to NASA standards. Paste as plain text instead, 2013 2014 FORD FOCUS SE COMMUNICATION VOICE RECOGNITION SYNC MODULE OEM . Thats a lot easier to deal with than the 15+ modules that a modern car or truck can have. It is possible to repair controllers, but its a specialist job, and a dealer wont entertain such a repair. This causes resistance and often is the root cause of scan tool communication issues. 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. 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. When a vehicle has U0100, most of the time, it won't run or drive anywhere. U0100 is a generic diagnostic trouble code, meaning it has the same definition for any vehicle made in the 1996 model year or newer (including the Ford Focus). Save my name, email, and website in this browser for the next time I comment. Most auto repairs shops charge between $75 and $150 per hour. If failure happens while attempting to start the vehicle then it will prevent the engine from starting. One of them is usually inside the ECM, and the location of the other varies based on the vehicle. For this test, we'll do what I said was rarely a good idea. They are twisted because that helps reduce interference from other wiring circuits. Pasted as rich text. More than this means theres excessive resistance in the circuit. Any Ford ECM/ECU/ PCM with -12A650- in the OE part number can be repaired. 1) Overall Test Result "not ready". These cookies do not store any personal information. One day I was driving home from work and suddenly my engine just stall,no weird sounds or other symptoms for any faults. For instance, U0101 indicates that the TCM has lost communication with the PCM. There are two grounds on the frame rail too. Bus + circuit # 914.and is found on Pin 2 of the DLC, Bus circuit # 915.and is found on Pin 10 of the DLC. 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. Place the negative probe on terminal 4 and the positive probe on the chassis ground and note the reading Repeat this for pin 5. 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.
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