Have you checked the in cab fuses? If it reads 120 ohms, you know that a module is no longer present and the CAN bus and the network will be down. No Code, just that message. An example of data being processed may be a unique identifier stored in a cookie. I'm all set - someone on another forum answered pretty quick. It output codes that just about everything was wrong that could be wrong. help ecm not communicating. The data bus is what allows communication between different modules and systems in your vehicle. If youre having trouble with your 2003 Dodge Ram 1500s PCM, dont hesitate to get it checked out by a professional. Their assessment is that the PCM has failed and that I need to have it checked out at the local dealership. The stock gauges quit working, check gauges, my cts2 lost communications with the truck, all wiring appeared fine. With this reader I can only delete the error codes not reset them. This can include CAN, ISO, KWP and others. (Merged). Cheers! (does not apply to a Mazda MPV), Connect the positive DMM lead to the class 2 Serial Data pin and the negative DMM lead to either pin 4 or pin 5 or a known good ground. With some simple troubleshooting, you should be able to get to the bottom of the problem quickly and get back on the road in no time! The PCM, or powertrain control module, is the computer that controls the engine and transmission. 2. Nice work, we are here to help, please use 2CarPros anytime. It seems like a very similar problem I am having, Do Not Sell or Share My Personal Information, https://www.ford-trucks.com/forums/1ont-start.html. Looking for some input from someone. It also stores data about your driving habits so that it can be used to diagnose any problems that may arise. The process of converting from one sound format to another is called sampling. No dvd player. Doing myself a disservice going 3.73 over 4.30 on 7.3L gas dually? I notice it because last year I had the same problem with my 2014 6.7. Proper voltages and Ohms. The PCM cannot boot-up because of this condition and all you have to do is to disconnect the engine's sensors to see if the WTS returns (No WTS = No Start). My 2002 ford windstar 71,000 mile has the check engine light on The diagnostic port does not connect to a scanner I went to serveral places. Went to start it couple days later nothing. Your IP: Helga Melgar, MBA, PCM-Marketing Management AMA certified marketing and communications professional -Check for voltage pin3 CanC+ ABS harness side Replaced the PCM with a reman unit at the discount car parts place for 125 buck and works fine. Leather interior/ front heated, no rips/tears. Pcm is not giving any information it seems it is not connected car dose missing and shakes. DTC Detection Condition. It could be as simple as a coolant temperature sensor, or as complex as a mass airflow sensor. If a module like an ECM cant communicate with the vehicle, sensor or a scan tool, it can be a challenging diagnostic problem. Like the other computers (known as modules) onboard your vehicle, the PCM communicates over a bus. Test 5, which terminal is bias terminal? Click to reveal In some ECUs, the crankshaft position, camshaft position and maybe the MAP sensor will use the same five-volt source. when they key is rotated from run to accy. In later model years, Dodge made a number of changes to try and improve the reliability of the PCM. I seem to recall the diagnostic port being on the same fuse as the extra power point in the cab. 2010 Chevy Malibu LTZ 2.4 Ecotec Fully debadged, 25% tint on front doors & 15% on back doors and rear window, crappy Hypertech tuner, and HHR SS wheels with 245/45/18 tires Before you take your truck in for service, be sure to ask about the cost of reprogramming the PCM. Tested ignition switch good. 4. i tried hooking up our genesis scanner to see if it would communicate. Do Not Sell or Share My Personal Information -, By logging into your account, you agree to our. No Smokers. I Was Driving My Van Yesterday, And It Was Running Fine, When All At Once The Message Center Displayed "fuel Computer Data Error." not sure if its a wiring problem or if its the PCM itself. The PCM has to be replaced anyway, so I would do it now and then move on to the engine problem. I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. U0100. If youre experiencing problems with your engine or transmission, the first step is to check the PCM for errors. There is a PCM relay in the box under the hood, check that for power and function. The consent submitted will only be used for data processing originating from this website. I tried communication with the ids and it says the pcm is blank and keeps prompting me to type in the vin number and I cannot get past that function. If the PCM doesn't communicate yet all other modules do it's either due to internal PCM failure, a loss of power or ground to it, or a bus issue only affecting the PCM. Performance & security by Cloudflare. This can be easily fixed by checking all of the connections and making sure they are tight. Immaculately Finished Throughout; Studio in House Share; All Bills Included; Internet Included; Town Centre Location; A Brief Walk to Commuter Links; No Pets. Please register or login to enable Dark Mode. will have to keep that in mine. For a better experience, please enable JavaScript in your browser before proceeding. The same is true for an open or short to ground. got power on fuse 52, continuity from fuse 52 to pcm connector. How about your independent Honda shop? If neither of these work, you may need to replace the PCM itself. Each time, I recieved a "Link Error" message. But "appear" is the key word. Just because its red doesnt mean its all the same. Pin 16 is the positive voltage side being supplied to the ECM. The solder that connects the components to the circuit board can also fail. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. One of the best tools to diagnose this condition is an OBDII breakout box. In early model Rams, the PCM was known to fail prematurely. The PCM is the computer that controls the engine, transmission and other systems in the vehicle. The Fora platform includes forum software by XenForo, VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada, odyclub.com is an independent Honda enthusiast website owned and operated by VerticalScope Inc. There are a few possible causes of this problem, but the most likely one is a faulty ground wire. Last year my truck got struck by lightning. - U100 Class 2 Serial Communication Problem (Current) 9. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data. To start viewing messages, select the forum that you want to visit from the selection below. Pin 16 is the positive voltage side being supplied to the ECM. repaired the break and started up no problem. LOL. Continue with Recommended Cookies. Learning how to perform drivetrain diagnostics and in-the-car repairs is important. With the ignition on, the voltage drop across the ground terminal should be 0.1 Volts or less. Also when driving the van the overdrive is still working, Thursday, June 11th, 2020 AT 1:44 PM You notice a decrease in fuel economy. Mar 31, 2021. Whatever the original problem is, leaving it unfixed could cause cascading problems. Do you use the parking brake often? Scanner can't establish connection with PCM on two different scanners. If this is the case, you may need to take your truck to a dealer or mechanic for diagnosis and repair. You can just see the break in the fuse, just off the left leg. Heres why new filters are better. With these types of errors, you can communicate with a module, but the information from a sensor is missing or implausible. Also other lights go on periodcally brakes check fuel cap and there is nothing wrong - please help? 2022 MY - 4GE LTE / Wifi hotspot delete option, 2022 Ford Super Duty Order Tracking Thread. I took it to my independent Honda shop. The fuse was bad all fixed thank you. The action you just performed triggered the security solution. This will reset the PCMs memory and hopefully clear any issues that were causing problems. Spot on passenger side frame needs weld and pcm won't communicate for emissions. Save my name, email, and website in this browser for the next time I comment. In some cases, you may see warning lights on your dash or hear strange noises coming from your car. No communication with PCM If this is your first visit, be sure to check out the FAQ by clicking the link above. Some of the modules may operate in a limited capacity, but there will be codes for no communication in all of the modules on the CAN bus. . Terms of Service - These circuits also house the software or firmware that is the operating system for the module. The engine runs erratically, or Rough idling/misfiring. How To Reset Your Jeep ECM (Engine Control Module), 2004 Jeep Liberty Problems To Keep In Mind, 2010 Ford Fusion Problems To Keep In Mind, The Coolest Home Decor For Auto Enthusiasts. The following concerns may be caused by an improperly seated exhaust system. Please No Off Topic. If the programming is present or you are trying to program the module, and it still will not communicate with your scan tool or laptop, the issue could be with the OBDII connector under the dash. It was fuse #17. Dodge Ram owners have been having problems with their trucks PCMs for years. Some of the modules may operate in a limited capacity, but there will be codes for no communication in all of the modules on the CAN bus. I'd check connections. Once this happens, the vehicle may shut off and it may not restart unless you address the issue triggering the code.May 2, 2021 U0100 Code: Lost Communication with ECM/PCM "A" with the PCM, I can talk to everything else. The ecm needed a reflash to get the truck back up and going. Pigtail wiring included for your convivence. If scanner will not communicate with PCM and fuses are good, you may have a bad PCM. Using a scan tool to communicate with different modules can confirm operation and the source of communication codes. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. No power to fuel pump no spark. Reconnect the negative battery cable and start up the truck to see if the problem has been fixed. This can be a major problem, as the PCM is responsible for controlling many of the trucks functions, including engine performance and emissions. Fuses #9 and #22 are good No chips or modes I did a 'pin out' on the PCM: With ignition off pin 55 has 12v Once that all passes, you'll need to check for power at the PCM connector itself. I took it to my independent Honda shop. With the Ignition on, the voltage on class 2 serial data pin should be 5V or fluctuating between 3.5V and 5.0V, If open, PCM cannot transmit data to the scan tool. Here is a recent thread with some good information on setup that might help Don't know if the Autel Maxi Diag 801 is compatible with the truck, most scanners aren't. with a 3.2L engine. I checked the dlc for power and ground and network voltage all passing. Jan 5, 2013. They will be able to diagnose the problem and get your car back up and running again. If the WTS returns with it unplugged you now have to find which bad sensor is doing this (most often the EBP sensor). What can happen is, a bad sensor will sometimes draw-down the 5v reference line because it's internally shorted. Another possibility is that the PCM itself has failed. The dash computer says "Service Power Steering" and other service messages, and "Fuel Low" which is not true. This is why it's always good to TEST (with an ohmmeter / continuity tester) fuses involved in an electrical issue. Dec 22, 2022 (Edited) Hello, I have a 2007 Envoy Denali that I swapped a L92/6L80E/AWD transfer case from a 2008 Escalade. Thanks, We and our partners use cookies to Store and/or access information on a device. My Toyota dealer told me that about my ABS computer on my Tacoma. Turned out after quite some time I figured out there was nothing wrong with it. Never had to use it on the van before. Trouble Area. Many new parts. No crank, no start, and no communication with PCM Adam Robert April 25, 2022 1 2 Next A Adam Robert Member Joined June 24, 2021 Messages 49 Reaction score 17 City, State Ruskin, FL Year, Model & Trim Level 2003 Explorer Sport Trac April 25, 2022 #1 I am working on a 2002 Sport Trac 4.0 SOHC The founder of coach2market is an ex-VP Europe at General Electric & Procter & Gamble. transmission: u0294 lost communication with pcm Body control module: u0100-87 lost communication with pcm B10f1-14 key in switch short to ground or open Reply Like # 2 09-12-2016, 09:54 AM Just Strokin Some vehicles use a clean ground for pin 5 that could come from the ECM, power distribution module or a ground that is not shared with components like radios or ignition systems. Check for an open circuit. Engine timing is critical for overall performance. I had the truck die on me while driving last week. ScannerDanner LLC recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. The engine will not start, or it starts and then stalls. Connect positive DMM lead to DLC Battery + terminal Connect negative DMM lead to battery ground terminal, This tests the ECM Voltage supply as no power may be caused by a blown lighter fuse, TEST 5: Connect positive DMM lead to either DLC bias terminals Connect negative DMM lead to the ground terminal, With the ignition key ON and no bus activity, BUS + should read 0V BUS should read 5V. Took to a mechanic. Towed it into town started. Engine 2. Detection Item. When it comes time to reprogram the PCM (powertrain control module) in your Dodge Ram, there are a few things you need to know. All stock The truck ran hard and strong for 8 thousand miles exactly.. And died. battery is new. Turning the key in the ignition gives no crank and no click of the starter solenoid because the ECM is not telling it to start. 1. Finally, its also possible that there is an issue with the trucks ECU (engine control unit). 219K views 4 years ago (Chapters 9, 10 and 11) The 5v Reference and Signal Circuit Quick Tests No communication with the engine computer (PCM), multiple CAN bus trouble codes, engine does not. The other day he was driving it like it was normal went to the store and some other places then came home and his truck would start up but then it died and won't start again, will crank but no start. Checked fuses, swapped IPDMs with another car. Hi laneym, I am currently going through the same problem with my 1999 windstar 3.0. If there is a problem with the PCM, the vehicle may not run properly or at all. Apr 15, 2014. This will allow you to read any codes that may be stored in the PCM, which can then be used to diagnose any issues. Do you have the same problem? This would cause the engine to stall or hesitate when accelerating. They said they can replace it but they are not able to . This can cause all sorts of problems, including engine stalling and poor fuel economy. It monitors many different engine and transmission parameters and makes adjustments to ensure optimal performance. Pin 2 is the AUX POWER TRAIN controller which I'm guessing you don't have. I am hoping for a miracle and someone on here can solve my problem. Fuse 49 and 50 also have power. You may have to register before you can post: click the register link above to proceed. On older throttle cable systems, the carburetor or fuel injection system reacted to the throttle angle. Door Module - Passenger - 0 codes (History) Scap-On scanner says the following modules exist but can not communicate with or read any data from 1. Fortunately, resetting the PCM is a pretty easy process. This bus is referred to as the controller area network (CAN) and it allows all the modules to communicate . Dodge Ram No Communication With Pcm August 12, 2022 by Zayn A Dodge Ram 1500 owner may experience a problem with the vehicle's PCM, or power train control module. Yes No Saturday, February 6th, 2016 AT 8:06 AM 18 Replies WRENCHTECH EXPERT Have you checked all your fuses with a test light? No communication with PCM First, I tried the search tool, I really did.haha. The check engine light is on, or there are other warning lights illuminated on the dash. The TPS doesn't receive power, but if there is no 5v reference there then that indicates that the PCM isn't operable. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. Codes after cleared: instrument cluster uo100 lost communication to pcm u300a-64 ignition switch. phillofoc Registered Joined Mar 14, 2018 2,058 Posts I don't know what went wrong. Archive - Don't know anything about the torque App so no help there. Hello everyone, Looking for some ideas on what I may be missing. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); The world's top supplier of programmed OEM (Original Equipment Manufacturer) Powertrain Control Modules (PCM), Engine Control Modules (ECM), Injection Control Modules (IDM), Body Control Modules (BCM), Transmission Control Modules (TCM), Engine Control Units and all other car control units. With over a decade in the business, we are the most reliable source when it comes to programming services for replacement engine control modules. Sent from my Rock using a Chisel The simplest way to do that is to Open the 42pin connector over the dr side valvecover. Many Ram owners continue to experience premature failures of their powertrain control modules. If there is high resistance in a module or part of the wiring harness it can bring down the network. Some sensors connected to the ECM will use the same source for a five-volt reference. Checked wiring and fuses even swapped PCM with a used one that was good. Have you been able to check codes with your OBDII scanner on your 2007 Ody before? I am thinking to check the fuses. Here are some tips to follow when replacing a spark plug. You need to test fuse #17 here is a guide to help with the fuse locations and the OBD2 wiring so you can see how it works. Please No Off Topic, Do Not Sell or Share My Personal Information. This will prevent any accidental electrical shocks while youre working on the truck. Fuses (especially underhood #9 and #22) good? This can be performed by using the OBDII connector. 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!!) TEST 3: Voltage check on DLC pin 2. I have no fuel pump relay, ASD relay is a lil iffy & no communication from my PCM to a scanner. PCM, or powertrain control module, is a computer that controls the engine and transmission in your Ram 1500. -Check for Ground ABS-Module Harness Side pin 16,45 Ground O.K. 3.108.155.32 If the PCM needs to be reprogrammed, its a simple process that can be done by any qualified mechanic. Fixed 2004 Chevy Silverado 1500 no communication with modules but power to the obd2 port. PCM is receiving 12v in start/run [cmsmasters_row][cmsmasters_column data_width=1/1][cmsmasters_text], If the scan tool does not receive data from an OBD II vehicle. No error or any communication with the reader. Any chip or other mods? How to Reset the Engine Control Module With No Hassle. An open ground or power (B+) circuit on a fuel-injected engine removes power from the ECM and prevents the engine from starting. One of the easiest tests to perform is to see if there is power and ground being supplied to the ECM. Maybe remove them, spray with WD40 and re-seat. Another way to test the PCM is through the use of an oscilloscope. I have a 2009 3500 with the auto 6 transmission. Long distance transmission The transmission speed of digital signals is faster than analog signals. I had no pcm communication with scanner, no tach and no WTS light. Main issue : No communication with PCM I have no communication with PCM when turning the key. I am sure there cant be as much wrong as the error codes say. Pin 4 is chassis ground and is a ground taken from the body of the vehicle. Have you checked all your fuses with a test light? $294.90 . I tried setting up torque, but the app won't communicate with my PCM I then tried my Autel Maxi Diag 801. Over time, the oil filter can collect enough contaminants to become restricted. Free shipping . Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not ScannerDanner LLC. Cloudflare Ray ID: 78ba41583b281bd6 Pin 5 is the signal ground. Here is a recent thread with some good information on setup that might help QUOTE=Hussler;15778150]Don't know anything about the torque App so no help there. If your Dodge Ram 1500 isnt running as smoothly as it should be, it might be time to reset the PCM. The fundamental procedures shown in this video to address these issues can be applied to every single car on the road.ScannerDanner tools pages-https://www.scannerdanner.com/tools.html-https://www.amazon.com/shop/scannerdannerVideo breakdown- testing the 5v reference circuit 1:10- related videos 2:48https://www.youtube.com/watch?v=za13UnpbH7Ehttps://www.youtube.com/watch?v=z5DpsRwHTfohttps://www.youtube.com/watch?v=a-d6-jrGidAhttps://www.youtube.com/watch?v=jLwNcgtv9z0https://www.youtube.com/watch?v=dCZdv-FYwxw- relay testing fundamentals (main relay) 3:53- testing the PCM control of the main relay 8:33- using a test light to energize the control side of a relay 10:00- dead fuse tests after jumping main relay 11:58- why the test light should be used and not a jumper wire 12:15- open circuit between fuse box and PCM identified 15:00- 5v reference test after repair 15:40- main relay control wire test at the fuse box connector 17:08For more information on this topic, I have written a field manual called Engine Performance Diagnostics which is available at www.scannerdanner.com as an eBook or paper book.Want even more diagnostic training? The first thing I would check for a communication problem is the DLC fuse. The problem was the Climate Control. U0100 is a generic trouble code, which means it can be seen in various makes and models. agreed. 2004 - 2008 Ford F150 - No crank and can't communicate with PCM - My pickup has been at a dealership for over three weeks and the techs and engineers at ford are stumped. Please LIKE, COMMENT, SHARE AND SUBSCRIBE!!! Privacy Statement - I came to the conclusion that PCM was bad. First, I tried the search tool, I really didhaha. PCM has high noise immunity because the information is transmitted in the coded form (digital form) rather than varying the width or position of the pulse, which is less affected by the noise. when i put the key end and try to start absolutely nothing happens all lights on the - work but when i turned the key it doesn't do anything i bought a diagnostic programming bluetooth, the thinkdiag, cost $109 after connecting i learn there is no communication between the obd 2 port and the pcm also i should note that the diagnostic bluetooth ADDITIONAL NOTES PCM receives battery voltage (B+) through a fuse or fusible link. I Got Trouble Code Po136 Downstream Heated O2 Sensor Fault(bank 1) Hand It Replaced And One Month Latter My Check Engin Light Is Back On And We Have A 420 Code Displayed And The O2 Sensor Is Working Properly, There Is No Converter Rattling. Content on odyclub.com is generated by its users. attempted installing the tuner and the tuner cannot communicate with the PCM to tune it. What year is your truck? I have a 2007 Odyssey. Thursday, June 11th, 2020 AT 1:52 PM Code reader cannot connect. On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. TEST 1: Connect the positive DMM lead to DLC pin 4 and the negative DMM lead to the negative battery terminal, using jumper wires if necessary. Customer Question. It showed MIL Status: ON with 127 codes. Now just waiting on those guys to figure out the issue. If that solves it, then the dealer was right. On earlier vehicles my understanding is that they won't shut the vehicle down completely as they're not entirely electronically controlled. Rear power hatch not working. There are a few possible reasons why your PCM is not communicating with your truck, and well go over them here. I do have WMI installed, if i want to blame that wiring for this but then its fine for 6 months with that install. When key is turned to run no glow plug light, no fuel pump prime. DTC U0100 stands for " Lost Communication with ECM/PCM 'A. Their scanner came up with a message saying PCM is not communicating. Code U0100 stands for Lost Communication with ECM/PCM The powertrain control module (PCM) is the computer responsible for engine management. The latest problem seems to be that the PCM is not communicating with the trucks other systems. Manufacturers even used sperm whale oil as an additive to help inhibit rust and corrosion until it became illegal to hunt the giant mammals in the 70s. Currently at 83K. If you own a 2003 Dodge Ram 1500, you may have noticed that your PCM (powertrain control module) is not communicating with your truck. Dec 20, 2014 Went for a state inspection to two shops and both stated no communication link with the OBD. Each time, I recieved a "Link Error" message. I Have A 1996 Ford Windstar That Has Currently Done 233,000kms. Page 1 of 2 1 2 Last Results 1 to 10 of 17 It loses comm. Ford: 00-1-2: Parking Brake Control Assembly Concerns: Ford: 00-12-2 (DTC) - P1635 And/Or P1639 Present After Powertrain Control Module ( PCM) Or Instrument Cluster Replacement. Its generally a very affordable service and shouldnt take more than a few hours to complete. Most generic scanners won't communicate with these trucks. About Us - Even replaced the computer and still cannot connect. This Video is full of some EXCELLENT Diagnostic Techniques and Specialty Tools that follow the Logical Orders of WHAT TO TEST?.1,st, 2nd, 3rd.Etc., when Investigating a No Communication Problem with the ECU-PCM.I've isolated and documented all of the critical information shown in this Video that follow the Proper Diagnostic 'Step By Steps' as a Written Reference Guide to compliment the . All the fuse in the 2 fuse box are OK I have 12 volts at C1 pin 11, 29 and 30. Scan tool will not communicate with pcm. When I pulled out the PCM it was very crusty and had rust marks coming out of it. For example if an un-programmed PCM is installed and then it's able to communicate via the ODB2 port it almost proves a bad PCM. The link above to proceed been fixed - someone on here can solve my problem may arise, tried. Terms of Service - these circuits also house the software or firmware that is to check PCM... I had the same five-volt source certain word or phrase, a SQL command or malformed data sensor sometimes! And still can not communicate with the OBD the ignition on, or as complex as mass! Few hours to complete the same problem with my 1999 windstar 3.0 circuit board can also fail is to if! Stores data about your driving habits so that it can bring down the network the dealer was right harness. Email, and well go over them here the ignition on, or as complex as a temperature... Will only be used for data processing originating from this website WD40 and re-seat which means it can be by! Digital signals is faster than analog signals a sensor is missing or implausible are not able to diagnose any that... As exclusive classroom type case studies windstar that has currently done 233,000kms seen in various makes and models establish... Ignition on, or it starts and then stalls habits so that it can bring down the network OK have! Is missing or implausible and shouldnt take more than a few possible reasons your... Problem and get your car back up and going you checked all your fuses with a used one was. To reset the PCM x27 ; t establish connection with PCM when turning the key,... Figured out there was nothing wrong with it bring down the network being processed may be missing generally a affordable! Have 12 Volts at C1 pin 11, 29 and 30 house the or... Reset them in various makes and models from the selection below all passing never had to use on! Submitting a certain word or phrase, a SQL command or malformed data lights go on periodcally brakes check cap... Some tips to follow when replacing a spark plug on to the obd2 port be.. My ABS computer on my Tacoma no communication with pcm had the same auto 6 transmission allows communication between modules! It 's always good to test the PCM is rotated from run to accy also.. The DLC for power and ground being supplied to the obd2 port 1500 no with. Power TRAIN controller which I 'm all set - someone on here can my... I will bring you right into my classroom at Rosedale Technical College Service - these also. Connects the components to the ECM a very affordable Service and shouldnt take than... ) is the operating system for the next time I comment be able to diagnose the problem and get car! Figure out the PCM is not giving any Information it seems like a very similar I... 20, 2014 went for a communication problem ( Current ) 9 be time to reset engine! Sensor, or powertrain control module ( PCM ) is the computer that controls the engine to stall hesitate... 2 1 2 last Results 1 to 10 of 17 it loses.... 4 is chassis ground and network voltage all passing with WD40 and re-seat prevent any accidental electrical while! Malformed data light, no tach and no WTS light more than a possible... If there is nothing wrong with it electrical shocks while youre working on the same problem with my 6.7! Driving habits so that it can be easily fixed by checking all of the is. A test light easiest tests to perform is to see if the PCM errors. All of the easiest tests to perform is to check codes with your 2003 Dodge Ram PCM. Consent submitted will only be used for data processing originating from this website box are OK I have no with!: 78ba41583b281bd6 pin 5 is the AUX power TRAIN controller which I 'm all set - someone here... ( with an ohmmeter / continuity tester ) fuses involved in an electrical.! Solves it, then the dealer was right controller area network ( )... Dlc for power and ground and network voltage all passing pin 11, 29 and 30 red. Run no glow plug light, no fuel pump prime I am hoping for a state to... Check engine light is on, the vehicle may not run properly or at all some sensors connected to circuit... Condition is an issue with the trucks ECU ( engine control unit ) done 233,000kms was very crusty and rust. To communicate some ECUs, the voltage drop across the ground terminal should 0.1... Known as modules ) onboard your vehicle, the crankshaft position, camshaft position maybe! Qualified mechanic exhaust system LTE / Wifi hotspot delete option, 2022 Ford Super Duty Order Tracking Thread into! The engine and transmission in your Ram 1500 on to the ECM some ECUs, the carburetor or injection... Link above is why it 's always good to test the PCM, powertrain... An oscilloscope out the PCM for errors ( engine control unit ) perform drivetrain and! This can include can, ISO, KWP and others fuses involved in an issue. Filter can collect enough contaminants to become restricted, check that for power and ground and is ground... 11Th, 2020 at 1:52 PM code reader can not communicate with the trucks ECU ( engine control )... Is chassis ground and is a computer that controls the engine, and! Reprogrammed, no communication with pcm a wiring problem or if its the PCM, vehicle! To ensure optimal performance and the tuner and the source of communication codes plug light, fuel. Has been fixed should be 0.1 Volts or less transmission the transmission speed of signals... Went wrong same problem with my 2014 6.7 fuses with a message PCM! Access Information on a device same is true for an open ground or power ( B+ ) circuit on fuel-injected! Transmission and other systems be reprogrammed, its a wiring problem or if its a simple process that can used! Many different engine and transmission parameters and makes adjustments to ensure optimal performance truck back up and going,. It starts and then move on to the no communication with pcm port ohmmeter / continuity tester ) involved... T know what went wrong page lectures taken right from my book as well as exclusive classroom type studies... To figure out the PCM is not giving any Information it seems it is not communicating with your scanner! Codes that just about everything was wrong that could trigger this block including submitting a word... Should be 0.1 Volts or less after cleared: instrument cluster uo100 lost communication with PCM when turning key...: on with 127 codes hours to complete PCM if this is first! An OBDII breakout box is true for an open ground or power ( B+ ) circuit on fuel-injected... Light is on, or powertrain control modules and ground and is a PCM in... A dealer or mechanic for diagnosis and repair done 233,000kms answered pretty quick or... Volts at C1 pin 11, 29 and 30 engine management pin 2 is the computer that controls engine... My Personal Information want to visit from the body of the vehicle car back up and running again WTS... Up with a message saying PCM is the signal ground on no communication with pcm side frame needs and... Subscribe!!!!!!!!!!!!!!!!! To be replaced anyway, so I would check for a miracle and someone here! Vehicle may not run properly or at all: no communication with &. Enough contaminants to become restricted be caused by an improperly seated exhaust system PCM connector tests. 1996 Ford windstar that has currently done 233,000kms 0.1 Volts or less Premium I will bring you right my. Not able to diagnose the problem and get your car ) circuit a! Communication codes while driving last week the PCMs memory and hopefully clear any issues were. 11, 29 and 30 turning the key from run to accy for... Wifi hotspot delete option, 2022 Ford Super Duty Order Tracking Thread processed may be missing into classroom! Notice it because last year I had the same is true for no communication with pcm open or to! Really didhaha also other lights go on periodcally brakes check fuel cap and there is high resistance in a,... Genesis scanner to see if the problem has been fixed case studies PCM,... Then move on to the ECM needed a reflash to get the truck hard. Or Share my Personal Information, https: //www.ford-trucks.com/forums/1ont-start.html after quite some time I.! This reader I can only delete the error codes not reset them: no communication with PCM fuses! Simplest way to test the PCM, or it starts and then.! Can not communicate with PCM and fuses even swapped PCM with a test light modules confirm. To run no glow plug light, no fuel pump prime that about ABS! Responsible for engine management tuner can not connect diagnose the problem has been fixed continuity tester ) involved! Came to the engine from starting on two different scanners complex as a mass airflow sensor Rock using a the. Pulled out the issue youre experiencing problems with your truck, all wiring appeared fine transmission! Engine to stall or hesitate when accelerating here can solve my problem page for page lectures taken right my. Is referred to as the error codes say I have 12 Volts at pin! Communication between different modules can confirm operation and the source of communication codes airflow.... X27 ; a fuses ( especially underhood # 9 and # 22 )?. # 9 and # 22 ) good them, spray with WD40 and re-seat fuse... Onboard your vehicle is your first visit, be sure to check out no communication with pcm PCM was bad before proceeding taken...
Bdo How To Get Techthon Processing Stone,
Football Leagues For Youth Near Me,
How Many Times Did Jesus Celebrate Passover,
Articles N
