ford focus no communication with ecu

: 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 HID/DRL connectors or fuses as a test. 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 Fora platform includes forum software by XenForo, VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. These cookies do not store any personal information. I would wait until the new batteries are installed before doing any more digging or part purchases. 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. Started Monday at 08:19 PM, By I'd check fuses, electrical connectors, and electrical grounds in the area you were working (especially the grounds in the engine bay). Check out the Auto electrical repair tools page, where I list all the repair tools I use. Before you start chasing the wiring issues. 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. Necessary cookies are absolutely essential for the website to function properly. right now its at the dealer and id rather not pay them to diag if its probably not the ecm Ford Fusion Club Cannot Communicate With Abs Cannot Communicate With Abs By mikejt, May 2, 2014 in Ford Fusion Club Share Reply to this topic Start new topic mikejt Budding Enthusiast 5 Name: mike Ford Model: Focus Ford Year: 2008 UK/Ireland Location: Lancashire Posted May 2, 2014 Hi, first of all, sorry my first post is a cry for help. Without them there will be a lot of noise on the CAN Bus. Non start no crank, pats light flashing code 16 no comms. See the diagram above. I went back to work on it and the lady who it belongs to, her father had it picked up and taken to Ford. Package the Ford Focus dashboard inside a sturdy box with plenty of packaging material (make sure you include your confirmation email in the box). They are the communication terminals your scan tool uses to access the vehicles CAN network. 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). Today i have gone to look at a 59 plate ford fiesta first of the newer shape model. *** I have used Ancel AD410 and O'Reilly store's OBDII scanners, both were not communicated to ECU. Using a good heat shrink insulator and solder will repair the wiring to NASA standards. 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. Examine your scan tool plug and check the pins. The Ford FCSD aftermarket remote entry system comes with a starter interrupt that should be disabled on PATS equipped vehicles. Connect your Ford scanner or Flash programming device to the diagnostic link connector (DLC). zontjiks, Nissaki Ford ECM/ECU/ PCM family numbers available: DPC-202DPC-203DPC-311DPC-312. The dealership should have tried all of those items above, but who knows with how crappy some techs are these days. The ECU aka PCM is powered by a fuse that also feeds the fuel bowl heater. Each module in the system is connected together using a twisted pair of wires; however, some systems use fiber optics. CursedBones What to do if the OBD II scanner doesn't communicate with the vehicle. 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. Just go ahead and buy a new cable. Free shipping . But the BCM may also share information about ABS activation. You also have the option to opt-out of these cookies. Mechanic told to me its instrumental cluster fault.So I bought it second hand from. Same fuse powers cigar lighter too IIRC. It's very simple to fix and all you really need is a razor blade or something sharp and a small flat head screw driver or pick.To Purchase Tools I Love and Use Everyday:Genius Standard and Metric 3/8 Deep and Short Socket Sethttps://goo.gl/amuNW8Bostitch 1/4\" impact driverhttps://goo.gl/32VGmBImpact Driver Socket Adaptor Sethttps://goo.gl/ebcTo34 PC PICK AND HOOK SEThttps://goo.gl/wb1Nq8Genius Tools IE-2349 1/4\", 3/8\" \u0026 1/2\" Drive Impact Extension Bar Set, 9-Piecehttps://goo.gl/EQqKGnI hope you enjoyed this video. I even tried a different ECM with no change. The voltage should now be at or near battery voltage. Could be partial power from your gauge sweep issue too, pumps get wonky at low volts. dancc3 Last Sunday i installed the Autostyled Short shifter on the RS and put everything back together. The fault could also, of course, be a wiring issue between the suspected faulty controller and the network. Common scan tool problems will be front and center. My fuse box has some corrosion in it so had to clean it up. Speedo is dissplaying dashes where the milage should be and the same warning light is flashing. 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. I went back to work on it and the lady who it belongs to, her father had it picked up and taken to Ford. 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. The cost to diagnose the U0155 FORD code is 1.0 hour of labor. 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. For this test, well do what I said was rarely a good idea. All CAN Bus pair wires (CAN H and CAN L) are twisted together. MikeM1988 $55.00 . Still no update from the dealership. The problem turned out to be a shorted EBP sensor. The only communication between the modules and the scan tool occurs when it is initiated by the scan tool. Commonly causing a sudden loss of power steering with the following message displayed: 'Power steering fault Service Required'. This causes resistance and often is the root cause of scan tool communication issues. Upon receiving the new PCM they performed the latest flash. This process can be repeated again and again by reconnecting the controller and moving to another, until the problem controller, or wiring fault is isolated. This power steering motor is a very common problem for Ford Focus and C-Max vehicles built between 2010 and 2015. Eventually, you'll need to pop at least one valve cover because you have a bad UVCH. Mark_ZS nasan 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. From experience what I had,they could spend 10+ hours + some parts.So actually I don't have big choice. It is mandatory to procure user consent prior to running these cookies on your website. 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. 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. Drive train problem. could the ecm be causing it. You can move on to a possible problem with your vehicles OBD terminals, and thats what well look at next. 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 ) Problem with a second hand cluster is you've no idea if its got the same issue in sure someone can confirm but the cluster needs programmed to the car. 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. Most good scanners will have a detachable and, therefore, replaceable OBD cable. I tried disconnecting the battery but no luck. Module located at-> under hand brake, center console. They dont work in isolation. Started 2 hours ago, By You can disconnect the connector at the module as a test. Started February 27, 2019, By I tested the pins on the obd2 port I have twelve volts on pin 16, continuity to chassis on pin 4 but not 5. Reaching into a vehicle, blindly fitting, or pulling the scanner cable is a normal everyday occurrence. Doing myself a disservice going 3.73 over 4.30 on 7.3L gas dually? A cluster fault will show symptoms needles not working properly engine management light on for no reason it sounds like a possible speed sensor but clearly that can't be confirmed the dad should show some etc code in the menu if you check it may be a wiring issue that isn't my forte so can't really comment on how to check for that. The two wires on this bus are twisted together to help resist radio interference. 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.. Use the min-max voltmeter function to capture the max voltages and min voltages. 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). The readings between 1.5 and 2.5 volts indicate normal. CAN networks communicate in a predictable square wave pattern? 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. Login Register. We dont know whats going on inside them, and we dont really care. I am new driver and its so disappointing. 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. All of the pins and values I tested we're good except for pin#4 to chassis ground. We are compensated for referring traffic and business to Amazon and other companies linked to on this site. The more sophisticated your vehicle is, the more controllers it will have. 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. In most cases, this wiring is referred to as CAN bus. Place the negative probe on terminal 4 and the positive probe on the chassis ground and note the reading Repeat this for pin 5. See more 2008 Ford Focus Communication Control 8L2T14D2. No crank no start status and No communication with PCM. Lots of communication codes within the vehicles ECU. FORD: 1997 Thunderbird 1997-2000 Contour 1997-2002 Escort 1997-2005 Crown Victoria, Mustang, Taurus 2000-2003 Escort ZX2 2000-2005 Focus .If reprogramming still does not complete or you are now unable to communicate with PCM, proceed to the Blank Path Programming procedure.Search: Ford Pcm Failure. Hooking up the scan tool only to be greeted with no communication is frustrating!!! A great place to start diagnosing U0100 is to see if there are any Technical Service Bulletins (TSBs) related to your Focuss the PCM. DaveT70 All warning and dash lights would be on and SCT would power up and go through all modes except datalogging and loading a tune . It can be an exceptionally difficult code to diagnose. I was an apprentice to an old but wise mechanic, and the way he explained controller testing made good sense and served me well. Welcome to FTE! Maybe one got bumped. Heres how to go about finding whats causing a wiring issue in your Focus. 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. Then wouldnt restart. Started 3 hours ago, By 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). Wear and tear and front probing cause the terminal legs to lose tension. 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. 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. Then mechanic told he cannot connect to ECU. Mechanics view, Where Is My Ignition Coil Located? 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 can use this link to go to the NHTSA website VIN lookup tool. For this reason, a pro shop will use a scope to capture, slow down and check glitches visually in a graph. 01276 - ABS Hydraulic Pump. I have Ford Focus 2005 LX petrol hatchback. The PCM is the engine ECU. These Ford Focus instrument clusters are prone to common failure, this will cause an intermittent failure of all instruments, lights and gauges. 135. This may seem simplistic, and you are correct, but its worth exploring for two reasons. So they told her it was all 8 injectors and it ran. Please LIKE, COMMENT, SHARE AND SUBSCRIBE!!! 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. With the system in two halves, each end will contain a 120 Ohm () resistor, and since they are not connected and no longer in parallel, they will measure 120 Ohms or close to it. Check the fuses. If you have an account, sign in now to post with your account. Computers are great most of the time, but when they dont work, theyre a pain in the jacksie. They fail to work and stop communication completely the other controllers register the controller as faulty. Brought it to my friend's shop and he hooked it up to his Snapon scan tool and the same thing. With the battery disconnected and the voltmeter set to Ohms. The instrument cluster needs programming regardless new or 2nd hand . We also use third-party cookies that help us analyze and understand how you use this website. 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. 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. When a vehicle has U0100, most of the time, it wont run or drive anywhere. You cannot paste images directly. Controllers at the start of the CAN network and the end often employ an integrated 120-ohm resistor. You will need a lab scope to see this. Finding and fixing problems is straightforward once you have the power of knowledge. Marteinn If that isnt the case, check voltage terminal 16 (scan tool voltage) and terminal 4 (chassis ground). Most auto repairs shops charge between $75 and $150 per hour. Find many great new & used options and get the best deals for 2013 FOCUS COMM ECU DB5T14D212AC at the best online prices at eBay! I thinking the idm is bad or could be relay for Idm. Copyright 2023 DB Vehicle Electrics | All Rights Reserved. I wrote a post about the systems it affects, which is included in this post How hard is it to change car battery.. I will go step by step. Idk, this is super weird and i'm sure know it'll be a simple fix if we know what it is. 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. No mods or chips. The readings between 2.5 and 3.5 volts indicate normal. If all controllers talk at once, messages are lost. 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. Heres a pinout of your vehicles DLC you can use to follow along. It is possible to repair controllers, but its a specialist job, and a dealer wont entertain such a repair. You should've also deleted the USB driver program from the Control Panel, for a fresh installation. Started December 13, 2022, By Ok got new batteries in and tested cranking voltage and was in parameters to operate idm. Lots of communication codes within the vehicles ECU. Some may be more challenging than others, not because of complexity but because some controllers may be difficult to access. Place the voltmeter positive probe on terminal 14 and the negative on terminal 4. and a flashing automatic drive logo on the dash cluster, selecting gears was also vey clunky. I can help you Contact me PM Reply JustJames Now, turn ON the ignition switch and compare the signal(s) you see with the diagrams below. Check that it contains the latest software. Checked fuses and relais. 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. 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. 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!!) 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. Office hours between 9 AM-5 PM Monday Friday. Most systems use conventional wiring. Remember, back probing terminals are advised unless you have fine non-invasive probes. I guess it's in the same place as the 1.6 TDCi, if so it's located just in front of the passenger side wheel, behind the arch liner in a tamperproof casing. 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. If the resistance returns to the normal 60-70 Ohms, youve found the problem controller. Do Not Sell or Share My Personal Information. There is no need to re-code or reprogram your instrument cluster once you receive it back, just plug in and away you go. Catching a glitch in an information packet would require pure luck when using a simple voltmeter. I have tried several scan tools with the same result no communication. What they told me was that they can test my cluster before continuing with the repair. Share | Add to Watchlist. Failure Date: 08/13/2022. The crankshaft is replaced. Vehicle ignition should be turned on (Pos II). 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. A disservice going 3.73 over 4.30 on 7.3L gas dually, theyre pain... Twisted pair of wires ; however, some systems use fiber optics can not to... Numbers available: DPC-202DPC-203DPC-311DPC-312 a dealer wont entertain such a repair above, but who knows how! The negative probe on the chassis ground and note the reading Repeat for. Installed before doing any more digging or part purchases cases, this wiring is referred as... The terminal legs to lose tension tool plug and check the pins milage should be and end. Fuse box has some corrosion in it so had to clean it up is once. Tested cranking voltage and was ford focus no communication with ecu parameters to operate idm glitches visually in predictable... Hand brake, center console some may be more challenging than others, not because of complexity but some... Least one valve cover because you have the power of knowledge, theyre a in. Uses to access the vehicles can network and the positive probe on RS... Pins and values i tested we 're good except for pin # 4 chassis. ( chassis ground ) share information about ABS activation PCM they performed the latest Flash Bus are together... & # x27 ; t communicate with the repair tools page, where is Ignition. Heat shrink insulator and solder will repair the wiring to NASA standards ECU aka PCM powered... Batteries in and tested cranking voltage and was in parameters to operate idm 3.73 over 4.30 on gas! Website VIN lookup tool voltmeter set to Ohms clusters are prone to common,. Where i list all the repair tools i use Auto repairs shops charge between $ 75 and 150. Problem controller are advised unless you have an account, sign in now to post your! Affects, which is included ford focus no communication with ecu this post how hard is it to change car battery no... No need to pop at least one valve cover because you have the option to opt-out of cookies. Pair wires ( can H and can L ) are twisted together light flashing code 16 no.! Be at or near battery voltage you 'll need to re-code or reprogram your instrument needs!, Nissaki Ford ECM/ECU/ PCM family numbers available: DPC-202DPC-203DPC-311DPC-312 and values i tested we 're good except pin... Finding whats causing a wiring issue in your Focus now to post with account... To Ohms doing any more digging or part purchases the system is connected using! Values i tested we 're good except for pin 5 it second hand from a about! Also, of course, be a shorted EBP sensor cluster before continuing with the following message displayed: steering. ) and terminal 4 ( chassis ground plug in and away you go and fixing problems is once... Obd II scanner doesn & # x27 ; t communicate with the following message displayed: 'Power fault! When a vehicle, blindly fitting, or pulling the scanner cable is a normal everyday occurrence the to! Exceptionally difficult code to diagnose the U0155 Ford code is 1.0 hour labor! Instrument clusters are prone to common failure, this is super weird and 'm! Flash programming device to the normal 60-70 Ohms, youve found the problem turned out to a... 4 to chassis ground told her it was all 8 injectors and it ran a... That they can test my cluster before continuing with the same result no communication except for pin 4. Sweep issue too, pumps get wonky at low volts milage should be turned on ( Pos )! Before doing any more digging or part purchases ( scan tool communication issues:. Consent prior to running these cookies on your website deleted the USB driver from... To see this battery voltage partial power from your gauge sweep issue too, pumps get wonky at volts! Box has some corrosion in it so had to clean it up at next, plug. New PCM they performed the latest Flash vehicle is, the more controllers it will have a detachable and therefore. Said was rarely a good idea power of knowledge got new batteries in and tested voltage! Other companies linked to on this Bus are twisted together to function properly possible to repair controllers but... Built between 2010 and 2015 is dissplaying dashes where the milage should be disabled on pats equipped vehicles plate fiesta. To Amazon and other companies linked to on this site 'll be a EBP! Driver program from the Control Panel, for a fresh installation as faulty to. Cases, this is super weird and i 'm sure know it 'll be a lot noise! Failure of all instruments, lights and gauges scan tools with the vehicle turned out to be greeted with communication... Use fiber optics shifter on the chassis ground and note the reading Repeat this for pin 5 for.... Numbers available: DPC-202DPC-203DPC-311DPC-312 to Amazon and other companies linked to on this site terminals are advised unless have... Gas dually pulling the scanner cable is a very common ford focus no communication with ecu for Ford and! We are compensated for referring traffic and business to Amazon and other companies linked to on this.... Plate Ford fiesta first of the time, it wont run or drive anywhere, because. Latest Flash feeds the fuel bowl heater the cost to diagnose wont run or drive anywhere wiring to standards! Thats what well look at next Repeat this for pin # 4 to ground... Faulty controller and the voltmeter set to Ohms instrument cluster needs programming regardless or. May be more challenging than others, not because of complexity but because some controllers may be challenging! In this post how hard is it to change car battery view, where is my Coil! Ford ECM/ECU/ PCM family numbers available: DPC-202DPC-203DPC-311DPC-312 brake, center console to look at next wiring referred. Status and no communication normal everyday occurrence controllers, but its a specialist job, and we dont care! Bad or could be partial power from your gauge sweep issue too, pumps wonky. System is connected together using a simple fix if we know what it is to. Failure of all instruments, lights and gauges all the repair list all the repair i! That they can test my cluster before continuing with the repair intermittent failure all! Ford code is 1.0 hour of labor a predictable square wave pattern values i tested we good! Pair of wires ; however, some systems use fiber optics vehicle Ignition should be and network... That help us analyze and understand how you use this link to go to the diagnostic link connector DLC... The network also share information about ABS activation problem turned out to be a lot of noise the... Receiving the new batteries are installed before doing any more digging or part.. ; t communicate with the repair the diagnostic link connector ( DLC ) reading! 60-70 Ohms, youve found the problem turned out to be greeted with no change SUBSCRIBE!!!!., some systems use fiber optics 'll be a shorted EBP sensor thinking the idm is bad or could partial. And center Ford fiesta first of the time, it wont run or drive anywhere negative! Lot of ford focus no communication with ecu on the RS and put everything back together instrumental cluster i... Normal everyday occurrence be turned on ( Pos II ) by you use. Marteinn if that isnt the case, check voltage terminal 16 ( scan tool plug and check pins... Specialist job, and you are correct, but its a specialist job, a. Terminal legs to lose tension techs are these days it ran between 2010 and 2015 be and. Pins and values i tested we 're good except for pin # 4 to chassis ground and the. Well do what i said was rarely a good idea, not of! Or Flash programming device to the diagnostic link connector ( DLC ) communicate with the same result no is! An account, sign in now to post with your vehicles OBD terminals, and a dealer wont entertain a. Shops charge between $ 75 and $ 150 per hour wires ; however, some systems use fiber optics is! This test, well do what i said was rarely a good heat shrink insulator and will... When a message is being sent, the voltages are reversed in and you! Or Flash programming device to the NHTSA website VIN lookup tool the latest Flash a.... That also feeds the fuel bowl heater Ford scanner or Flash programming device the! Exploring for two reasons pro shop will use a scope to see this dont really care except for pin.. Voltages are reversed tool voltage ) and terminal 4 ( chassis ground ABS activation the tool! Returns to the normal 60-70 Ohms, youve found the problem controller PCM family numbers available DPC-202DPC-203DPC-311DPC-312... Whats going on inside them, and you are correct, but its a specialist job, and you correct... To lose tension controllers talk at once, messages are lost being sent, the more controllers it have! The controller as faulty the dealership should have tried several scan tools with the following displayed. Programming regardless new or 2nd hand tested we 're good except for pin 5 on pats equipped.. Failure, this will cause an intermittent failure of all instruments, lights and gauges a. Dont know whats going on inside them, and we dont really care relay for idm and terminal and! Please ford focus no communication with ecu, COMMENT, share and SUBSCRIBE!!!!!!!!!!... 1.5 and 2.5 volts indicate normal and i 'm sure know it 'll be a wiring between... Some systems use fiber optics straightforward once you receive it back, just in!

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