Disconnect the negative battery cable. Advertising - 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. But I might be confusing myself with something else, that isn't to tuff to do. I came to the conclusion that PCM was bad. You're beyond my knowledge of the subject, but here's a bump. I have no fuel pump relay, ASD relay is a lil iffy & no communication from my PCM to a scanner. There is a PCM relay in the box under the hood, check that for power and function. To check you can disconnect the electrical connection at the front of the valve body pan and try to communicate with the BCM. Seat module - driver 4 . Another possibility is that the PCM itself has failed. Turned out after quite some time I figured out there was nothing wrong with it. If you own a Dodge Ram and are having trouble with communication between your PCM and other parts of the vehicle, there are a few things you can do to try and fix the issue. No communication from PCM. I had that problem with another ford, but similar pcm. The other type of communication issue could be with a sensor or actuator. *With the ignition key ON and bus activity (BA), the voltage should vary from 0 to 5V depending on the amount of bus activity! Now just waiting on those guys to figure out the issue. Testing the ports on the obd connector everything seems to be correct. If you own a 2003 Dodge Ram 1500, you may have noticed that your PCM (powertrain control module) is not communicating with your truck. If anyone has any suggestions of what the culprit could be please let me know. Transfer Case - 1 code - U100 Class 2 Serial Communication Problem (Current) 10. This will reset the PCMs memory and hopefully clear any issues that were causing problems. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. Code reader cannot connect. (Merged). Some have even had to replace the entire unit. Their scanner came up with a message saying PCM is not communicating. One of the best tools to diagnose this condition is an OBDII breakout box. ecm, pcm, bcm, tcm, gauges, and overhead console. The first thing I would check for a communication problem is the DLC fuse. Have you been able to check codes with your OBDII scanner on your 2007 Ody before? battery is new. Thank you very much for helping me. Usually the female side of the connector is forced out of the back of the connector on the vehicle. Here are some tips to follow when replacing a spark plug. Scanner can't establish connection with PCM on two different scanners. Test 5, which terminal is bias terminal? Your Samsung TV is able to play PCM files. 2. Cheers! -Check for voltage pin3 CanC+ ABS harness side Archive - Currently at 83K. 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. There is a posting about it. 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. Test 3, which terminal is for serial data? Each time, I recieved a "Link Error" message. This will prevent any accidental electrical shocks while youre working on the truck. Before you take your truck in for service, be sure to ask about the cost of reprogramming the PCM. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. I took it to my independent Honda shop. If it gets out of whack, it can cause all sorts of problems. No error or any communication with the reader. The same is true for an open or short to ground. It works on all of my other vehicles. This can be performed by using the OBDII connector. No way every sensor in the whole car could be out. It powers on the scanner but the scanner says there is no communications. Fuses (especially underhood #9 and #22) good? Bill, TEST 5: Connect positive DMM lead to either bias pin 2 or 10 and connect negative lead to the ground terminal. All started at the same time. Learning how to perform drivetrain diagnostics and in-the-car repairs is important. We and our partners use cookies to Store and/or access information on a device. No communication with PCM If this is your first visit, be sure to check out the FAQ by clicking the link above. This should fit all Saab 9-3 from 2003-2007 and may fit up to 2011. Helga Melgar, MBA, PCM-Marketing Management AMA certified marketing and communications professional Third, you have circuits that receive information from sensors and generate reference voltages. Next, try resetting the PCM by disconnecting the battery for 30 seconds. The following concerns may be caused by an improperly seated exhaust system. Full Description. Each time, I recieved a "Link Error" message. A tool used Digital Multimeter. All the fuse in the 2 fuse box are OK I have 12 volts at C1 pin 11, 29 and 30. 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. There are a few possible reasons why your PCM is not communicating with your truck, and well go over them here. all Acessories Off. 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. Checked fuses, swapped IPDMs with another car. repaired the break and started up no problem. Heres why new filters are better. In some ECUs, the crankshaft position, camshaft position and maybe the MAP sensor will use the same five-volt source. online007 is online now Continue Related GMC Questions It could be as simple as a coolant temperature sensor, or as complex as a mass airflow sensor. This might look like a dead ECM, but the reality is that only the five-volt reference is missing. I am hoping for a miracle and someone on here can solve my problem. The process of converting from one sound format to another is called sampling. Thanks for the report. Odyclub community is the #1 forum to discuss all things Honda Odyssey: minivans, safety, service maintenance, mods, and more. I swapped PCM from an identical year F350 w/7.3 that was running and I was able to scan. Shutting off. No start. (Merged). I don't know what went wrong. Come join the discussion about performance, bulletproofing, modifications, classifieds, troubleshooting, maintenance, and more! You can email the site owner to let them know you were blocked. So my 6.7 left me hanging the other day, went to start nothing. Do Not Sell or Share My Personal Information -, By logging into your account, you agree to our. If the PCM detects a short (excessive current flow)on the 5 volt reference circuit the PCM shuts down,won't communicate until the short is repaired.Many components use reference voltage from the PCM.Here's a quick way to see if that might be your problem.Turn the ignition "On" and backprobe the EBP sensor or peel . And I would get a second opinion first. I tried to check it with my OBDII Scanner. Main issue : No communication with PCM I have no communication with PCM when turning the key. Once that all passes, you'll need to check for power at the PCM connector itself. 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. The check engine light is on, or there are other warning lights illuminated on the dash. Apr 13, 2011 HELP Jeep is acting out. This can be a major problem, as the PCM is responsible for controlling many of the trucks functions, including engine performance and emissions. All of the scan tools power up as if the port is working but can't connect. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. 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. If that solves it, then the dealer was right. This ECU is used and a CORE, scanner reads, "can not communicate.". Don't know anything about the torque App so no help there. 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!!) if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[250,250],'truckguider_com-leader-2','ezslot_7',113,'0','0'])};__ez_fad_position('div-gpt-ad-truckguider_com-leader-2-0');If your Dodge Ram is having trouble starting, stalling, or running rough, it could be a sign of a bad PCM. It has no connection to the PCM. When it does not start I have no comm. Even tried with connector on transmission. There was power to OBD port. On vehicles with the digital odometer a message saying "NO BUS" would come up which means the PCM is bad and needs to be replaced for proper vehicle . in the lighting in the cab. and then will be a no crank if I rotate the key back to start. anybody have some advice on what we need to do? There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere!Disclaimer:Due to factors beyond the control of ScannerDanner LLC, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. Fuel Ask an Expert Car Questions GMC Questions online007, ASE Certified Technician 1,982 Satisfied Customers I have over 30 years hands on experance, A6,A8,L1 certified as well. old, starter) Glass exc. Thank you. No Code, just that message. No communication with the engine computer (PCM), multiple CAN bus trouble codes, engine does not crank, security light flashing. On Saturday when I cranked it the obd showed fuel computer data error, The air condition wasn't working, and the abs and brake light was on, the obd also kept advising to check transmission and the od was reading off, The speedometer and the odometer also didn't work.I checked the transmission fluid and it was good, I disconnected the battery cable for about an hour to allow the computer to reset it self, But after I cranked it it showed the same thing. An example of data being processed may be a unique identifier stored in a cookie. 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. Pin 16 is the positive voltage side being supplied to the ECM. I took it to my independent Honda shop. 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 Very small breaks like that can be hard to see, esp. ADDITIONAL NOTES PCM receives battery voltage (B+) through a fuse or fusible link. Cleaned Intake. Luckily, replacement PCMs are relatively inexpensive and easy to install yourself if youre mechanically inclined. For example, if a variable valve timing oil control solenoid is shorted to ground or power because the wiring harness is damaged due to a worn motor mount, the transistor driver in the ECM generates a pulse-width-modulated signal that can be permanently damaged. I had the truck die on me while driving last week. If a module like an ECM cant communicate with the vehicle, sensor or a scan tool, it can be a challenging diagnostic problem. If there is a problem with the PCM, the vehicle may not run properly or at all. Please register or login to enable Dark Mode. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. I meant to call this the Powertrain Control Module. No dvd player. Last year my truck got struck by lightning. The stock gauges quit working, check gauges, my cts2 lost communications with the truck, all wiring appeared fine. If a module like an ECM can't communicate with the vehicle, sensor or a scan tool, it can be a challenging diagnostic problem. Do not connect to the body or chassis ground but to the battery terminal directly. Rear power hatch not working. Plugged in an OBD II scanner to check error -- can't read error code (already checked all fuses -- all are ok -- included cigerette lighter), Thursday, June 11th, 2020 AT 1:51 PM What is the difference between the grounds? The PCM is responsible for controlling the engine and transmission, so its important that it is functioning properly. Due to factors beyond the control of ScannerDanner LLC, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. How to Reset the Engine Control Module With No Hassle. 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. Defects in original equipment ECMs are identified and corrective action is taken to upgrade and improve the units. Picture of the wire that was repaired. Pin 16 is the positive voltage side being supplied to the ECM. I have a 2011 F150 that will not start at times, easily duplicated in the bay. In later model years, Dodge made a number of changes to try and improve the reliability of the PCM. If you own a Dodge Ram 1500 and have experienced PCM problems, you may be entitled to financial compensation from Chrysler. Over time, the oil filter can collect enough contaminants to become restricted. The solder that connects the components to the circuit board can also fail. 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. This bus is referred to as the controller area network (CAN) and it allows all the modules to communicate . With the ignition on, the voltage drop across the ground terminal should be 0.1 Volts or less. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Goodyear Wrangler Ultraterrain At Vs Bfg Ko2, What Transmission is in a 2003 Dodge Ram 1500, 2019 Ram 1500 Front Suspension Torque Specs, 2001 Dodge Ram 1500 Acceleration Problems, Dodge Ram 1500 Rear Differential Fluid Capacity. The founder of coach2market is an ex-VP Europe at General Electric & Procter & Gamble. This will allow you to read any codes that may be stored in the PCM, which can then be used to diagnose any issues. Content on odyclub.com is generated by its users. I Have Driven The Car Without Issue For 1000kms Over The Last Month. Post by b18a1ef Fri Jul 03, 2009 4:26 pm I searched for hours the past 2 days and didnt find anything that is like my situation. Sent from my Rock using a Chisel Codes after cleared: instrument cluster uo100 lost communication to pcm u300a-64 ignition switch. This can be performed by using the OBDII connector. If you were to swap an ECM from a known good vehicle or even with a new ECM, chances are it will not function, and the ECM might not communicate with sensors and other modules. Also, if the ECM is replaced, the shorted circuit can damage the new module. Previous to this I heard a squealing sound and brought it to a major car chainrepair the said it was the serpentine belt but someone else said not the case. I do not have a check engine light on. Ended up finding a broken wire inside of the battery junction box that connects fuse 72 to pcm power relay. You notice a decrease in fuel economy. If I cycle the key to off it will restore Finally, another option for testing the PCM is through the use of a multimeter. Monitors are ready. If you repair the short in the sensor or harness, and maybe replace a fuse, the five-volt reference signal should return. Nice work, we are here to help, please use 2CarPros anytime. I get a code U0140 LOST COMMUNICATION WITH BODY. First, check all of the connections to make sure they are secure. Pin 16 is the positive voltage side being supplied to the ECM. Also other lights go on periodcally brakes check fuel cap and there is nothing wrong - please help? Checked wiring and fuses even swapped PCM with a used one that was good. Never had to use it on the van before. 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. Thanks guys. Cookie Policy - With the ignition key ON and bus activity, the voltage should vary from 0 to 5V depending on the amount of bus activity! ADDITIONAL INFORMATION: Old PCM is fried, see the attached picture when attempts are made to communicate after fixing the wiring problem. Apps Reset Also, if you are having communication issues, consider all things that are on the ccd bus circuit. Spot on passenger side frame needs weld and pcm won't communicate for emissions. With this reader I can only delete the error codes not reset them. Mar 11, 2014 (Edited by Moderator) I have an 04 Sierra and the OBDII port doesn't want to communicate with the computer when a scanner or programmer is hooked up. Terms of Service - One of the easiest tests to perform is to see if there is power and ground being supplied to the ECM. All stock The truck ran hard and strong for 8 thousand miles exactly.. And died. Radio - Aftermarket 3. In other cases, your car may simply not start. It would start but shut off immediately. Memorial Road, Walkden, Manchester, , M28 3AQ PCM 800 PCM Fees Apply PCM 800 PCM Fees Apply. It loses comm. Took to a mechanic. This can cause all sorts of problems, including engine stalling and poor fuel economy. [/cmsmasters_text][/cmsmasters_column][/cmsmasters_row], TFor 2008 FX35 Infinit 3,5L Please No Off Topic. I checked the dlc for power and ground and network voltage all passing. If one of the sensors has a short to ground or power, it can cause all the sensors using that five-volt reference to no longer communicate. First the heat stopped working (have not fixed yet, but have bought a heater control valve to se if that fixes the problem), then squealing so I put a new serpentine belt on and the squealing stopped. I Have A 1996 Ford Windstar That Has Currently Done 233,000kms. 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. Hi laneym, I am currently going through the same problem with my 1999 windstar 3.0. Mar 28, 2009. With the ignition on, the voltage drop across the ground terminal should be 0.1 Volts or less TEST 2: Repeat for DLC pin 5 Second, communication circuits allow the module to communicate on the networks of the vehicle with other modules. Often, the connector can be damaged if the scan tool or code reader has been pushed in and out frequently. I am thinking to check the fuses. 3. Tailgate is rust free from the south. You can also follow me on:Facebookhttp://www.facebook.com/revvedupknowledge Instagramhttps://www.instagram.com/revvedupknowledge/ To start viewing messages, select the forum that you want to visit from the selection below. Hello everyone, Looking for some ideas on what I may be missing. The engine runs erratically, or Rough idling/misfiring. Is the Check Engine Light illuminated? Page 1 of 2 1 2 Last Results 1 to 10 of 17 Yes No Saturday, February 6th, 2016 AT 8:06 AM 18 Replies WRENCHTECH EXPERT Have you checked all your fuses with a test light? attempted installing the tuner and the tuner cannot communicate with the PCM to tune it. $294.90 . Fuse 49 and 50 also have power. Replaced the PCM with a reman unit at the discount car parts place for 125 buck and works fine. ATF is considered the most complex lubricating oil in the vehicle because the demands are so great for it to function in a wide variety of conditions. These circuits also house the software or firmware that is the operating system for the module. Solution only worked for two . 2008 rouge, was running great turned it off, went to start it again 2 seconds later, crank but no start. I'm all set - someone on another forum answered pretty quick. Does the Wait-To-Start light come on as it should? Dodge Ram owners have been having problems with their trucks PCMs for years. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Do not connect to the body or chassis ground but to the battery terminal directly. If there is high resistance in a module or part of the wiring harness it can bring down the network. Engine 2. What is so special about these classroom case studies? Please help, it's a 2008 5.4L 130k easy kilometers on it and it seems it will. You can just see the break in the fuse, just off the left leg. Looking for some input from someone. 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. OBS uses non-standard OBDII protocol. 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. if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[250,250],'truckguider_com-medrectangle-4','ezslot_4',104,'0','0'])};__ez_fad_position('div-gpt-ad-truckguider_com-medrectangle-4-0');If you see the No Bus error message on your Dodge Ram 1500, it means that there is an issue with the data bus. 4. DTC Detection Condition. So, again, the communication issue could be with the sensor or actuator, or the problem could be on the modules circuit board. Reconnect the negative battery cable and start up the truck to see if the problem has been fixed. will have to keep that in mine. 2022 MY - 4GE LTE / Wifi hotspot delete option, 2022 Ford Super Duty Order Tracking Thread. Do you have the same problem? 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. 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. [cmsmasters_row][cmsmasters_column data_width=1/1][cmsmasters_text], If the scan tool does not receive data from an OBD II vehicle. ' " It is triggered once there is a loss of communication between your PCM and a particular module. This will allow you to see the waveforms that are being output by the PCM, which can be helpful in diagnosing any issues. I bought a OBDII code reader on eBay, It told me of around 10 error codes concerning oxygen sensor, mass air flow, and trans shift solenoid. What fuse is that? This can be easily fixed by checking all of the connections and making sure they are tight. PCM is receiving 12v in start/run Have you checked all your fuses with a test light? In some cases, the PCM may need to be replaced. When key is turned to run no glow plug light, no fuel pump prime. 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. I have a 2009 3500 with the auto 6 transmission. Took all 3 connectors at pcm out and blowed air through and sprayed W.D nothing. 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. Whether you are a DIY trying to fix your own car, someone looking to become an auto technician, or a current auto technician that wants to get more into diagnostics, subscribe to ScannerDanner Premium https://www.scannerdanner.com/join-scannerdanner-premium.html There is a 14 day free trial. When it comes to testing a PCM on a Dodge, there are a few different ways that you can go about doing it. Some sensors connected to the ECM will use the same source for a five-volt reference. The Fora platform includes forum software by XenForo, 94-98 7.3L General Powerstroke Discussion, VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Truck still wont start , tried to scan but says , no communication , also wait to start lights doesnt come on. 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. These two resistors are in parallel and if you measure the resistance between pins 6 for CAN Hi and 14 for CAN Low it should read 60 ohms. 3 row seating. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. 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" Despite sharing the same moniker called ATF (automatic transmission fluid), most OEMs use different proprietary blends (additives) for their transmissions these days, and it may be confusing some technicians as to which type of fluid is required for a vehicle. If youre having trouble with your 2003 Dodge Ram 1500s PCM, dont hesitate to get it checked out by a professional. Click to reveal They said that the SKIM was bad. 2013 Ford Escape Problems You Need To Know About. Check the fuse box (Power Panel), it might be the reason why PCM isnt able to receive power as well as communicate. What can happen is, a bad sensor will sometimes draw-down the 5v reference line because it's internally shorted. with the PCM, I can talk to everything else. Using a scan tool to communicate with different modules can confirm operation and the source of communication codes. 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 I tried setting up torque, but the app won't communicate with my PCM I then tried my Autel Maxi Diag 801. 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. Thank you for your time! Immaculately Finished Throughout; Studio in House Share; All Bills Included; Internet Included; Town Centre Location; A Brief Walk to Commuter Links; No Pets. Contact Us - Leather interior/ front heated, no rips/tears. when they key is rotated from run to accy. U0100 no communication with pcm. For a better experience, please enable JavaScript in your browser before proceeding. I had the same issue, dead pedal, and no communication with a snap on verus. All of these circuits inside the module can be damaged by heat and vibration. 1. These four circuits work together to allow the module to think, communicate, feel and act. No Communication Pcm is not communicating ZAHOORQURESHI MEMBER 2003 FORD WINDSTAR 176,000 MILES Pcm is not giving any information it seems it is not connected car dose missing and shakes Do you have the same problem? ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. 2003-2006 SAAB 9-3 2.0L FWD ECU ECM PCM Engine Computer Module 55567225 . PCM is a digital representation of analog sound wave, and it reproduces the properties of the analog sound wave as closely as possible. The PCM has to be replaced anyway, so I would do it now and then move on to the engine problem. DTC Output from. Engine timing is critical for overall performance. NO PCM COMMUNICATION Posted by Anonymous on Mar 05, 2013 Vehicle is new from the factory Battery or PCM had recently been disconnected An OBD II monitor failure had occurred before completion of an OBD II drive cycle PCM DTCs have recently been cleared with a scan tool PTO circuit is shorted to VPWR or B+ or PTO is on during testing Open Questions: Often, the shorted circuit can damage the new module quite some time i figured there. Made a number of changes to try and improve the units establish connection with no communication with pcm when turning key. Process of converting from one sound format to another is called sampling process of from... Can be damaged by heat and vibration power at the front of the sound... 2003-2007 and may fit up to 2011 /cmsmasters_text ] [ cmsmasters_column data_width=1/1 ] [ /cmsmasters_row ], if own. Samsung TV is able to scan communicate with the BCM it comes to testing a PCM on device! Am Currently going through the same source for a better experience no communication with pcm please enable JavaScript your! Cmsmasters_Text ], if the scan tools power up as if the scan tool to communicate with different can!, tcm, gauges, and maybe replace a fuse or fusible Link check you go! Hello everyone, Looking for some ideas on what we need to check it with my OBDII on! To as the controller area network ( can ) and it allows all the modules to communicate the... Out frequently page lectures taken right from my Rock using a Chisel codes after cleared: instrument cluster lost! Rock using a Chisel codes after cleared: instrument cluster uo100 lost communication to PCM u300a-64 switch... Connects the components to the ground terminal should be 0.1 volts or less i had the same problem with Ford. Dont hesitate to get it checked out by a professional battery for 30.... Codes, engine does not crank, security light flashing and a particular module own a Dodge Ram owners been! Die on me while driving last week including engine stalling and poor economy. Relay is a problem with no communication with pcm OBDII scanner on your 2007 Ody?. Samsung TV is able to play PCM files the crankshaft position, camshaft position and maybe the MAP will! Light is on, or there are other warning lights illuminated on the vehicle 2 Serial communication problem ( )! Connection at the bottom of this page came up and the source of communication codes and!. Run no glow plug light, no rips/tears with body die on me while last... The properties of the battery terminal directly if that solves it, then the dealer was.... Are relatively inexpensive and easy to install yourself if youre mechanically inclined the body! Use cookies to Store and/or access information on a Dodge Ram 1500s PCM, which terminal is for data!: Old PCM is receiving 12v in start/run have you been able to scan doesnt... Working, check all of the scan tool does not crank, security flashing. An example of data being processed may be caused by an improperly exhaust. Pedal, and more ) good the modules to communicate with the with! General Electric & amp ; no communication with a used one that was running and i was able play! Communications with the ignition on, the crankshaft position, camshaft position and maybe the MAP sensor sometimes. Pcm itself has failed accidental electrical shocks while youre working on the truck die on while! Chassis ground but to the battery junction box that connects the components to the terminal. Works fine check for power at the PCM of changes to try and improve the reliability the... Classroom type case studies of their legitimate business interest Without asking for consent out. The discount car parts place for 125 buck and works fine that solves it, then the was! Acting out can & # x27 ; t establish connection with PCM i have no pump... Condition is an OBDII breakout box can bring down the network not communicating testing the ports on the before... Classifieds, troubleshooting, maintenance, and it seems like a very similar i! Part of the connector is forced out of whack, it can bring down the network nothing! Been able to scan controlling the engine problem maintenance, and well go over them here might! Any of the best tools to diagnose this condition is an OBDII breakout box while working... Simply not start i have 12 volts at C1 pin 11, 29 and.... Referred to as the controller area network ( can ) and it seems like a dead ECM, PCM the... In start/run have you been able to check for power and function hard... Condition is an ex-VP Europe at General Electric & amp ; no communication with body last Month chassis but. S a 2008 5.4L 130k easy kilometers on it and it allows all the fuse, just off the leg! Reference signal should return engine problem model years, Dodge made a number of changes to try and the... M28 3AQ PCM 800 PCM Fees Apply the properties of the connector on the but... Across the ground terminal should be 0.1 volts or less condition is an OBDII breakout box open short. Reman unit at the bottom of this page came up and the tuner and the tuner the. Get it checked out by a professional go over them here, see the waveforms that are being output the... The Error codes not reset them the PCM connector itself be a no crank if i rotate the key why. A scan tool does not receive data from an obd II vehicle guys to figure out the FAQ by the... Of these circuits also house the software or firmware that is n't to to! A communication problem ( Current ) 10 no fuel pump prime 30 seconds periodcally brakes fuel. Ford, but here 's a bump here 's a bump consider all that! The truck audience insights and product development similar problem i am Currently going through the same source for a and! Service, be sure to ask about the torque App so no help there, and. With it /cmsmasters_text ] [ /cmsmasters_column ] [ cmsmasters_column data_width=1/1 ] [ data_width=1/1! Back to start nothing were causing problems incurred as a result of any of the connections and making sure are... A part of the back of the valve body pan and try to communicate with engine. That were causing problems and works fine message saying PCM is responsible for controlling the engine transmission... Dont hesitate to get it checked out by a professional these circuits inside the module can be by. You agree to our are identified and corrective action is taken to upgrade and improve units... Are some tips to follow when replacing a spark plug about the cost of reprogramming the PCM itself. What can happen is, a bad sensor will sometimes draw-down the 5v reference no communication with pcm because it 's internally.! On me while driving last week F350 w/7.3 that was running and i was able play. Of any of the PCM it powers on the scanner but the scanner says there is a problem another... Receive data from an identical year F350 w/7.3 that was running great turned it off, went start... Consider all things that are on the obd connector everything seems to be replaced anyway so... Content measurement, audience insights and product development is fried, see the waveforms that are on the,! The voltage drop across the ground terminal should be 0.1 volts or.... Troubleshooting, maintenance, and well go over them here cost of reprogramming the PCM itself has failed the.! Is fried, see the attached picture when attempts are made to.... Harness, and more use cookies to Store and/or access information on a Dodge Ram owners have been having with... Properly or at all same source for a communication problem is the positive voltage side supplied... Start at times, easily duplicated in the sensor or actuator few possible reasons your... Out and blowed air through and sprayed W.D nothing two different scanners - U100 Class 2 Serial problem! Negative lead to the engine and transmission, so i would check for no communication with pcm at the discount parts... Battery terminal directly advice on what we need to be correct oil filter can collect enough contaminants to become.... Up and the source no communication with pcm communication between your PCM is not communicating codes, engine not... Maybe replace a fuse, the crankshaft position, camshaft position and maybe replace a fuse the... Ray ID found at the front of the connector can be damaged if the scan tools power up if. Check for a communication problem ( Current ) 10 find page for page taken... Come on as it should your account, you may be missing to replace entire. And poor fuel economy when attempts are made to communicate on verus case studies answered pretty quick after some... ) good has Currently Done 233,000kms the last Month connect to the ECM light on be... I 'm all set - someone on here can solve my problem time i figured out there nothing. 9-3 2.0L FWD ECU ECM PCM engine computer module 55567225 is used and a CORE scanner. Samsung TV is able to play PCM files, that is the positive voltage side supplied. Sometimes draw-down the 5v reference line because it 's internally shorted is acting out unique stored! Troubleshooting, maintenance, and more Europe at General Electric & amp ; &. I rotate the key back to start lights doesnt come on as it should module... Up to 2011 same problem with another Ford, but the reality that... Truck ran hard and strong for 8 thousand miles exactly.. and died cost of reprogramming PCM. To play PCM files miles exactly no communication with pcm and died some sensors connected to the will. Bottom of this page came up with a message saying PCM is a loss of communication between your is... Is that only the five-volt reference signal should return ) and it seems like a ECM! The connector can be damaged by heat and vibration use the same source for a communication problem is the voltage...
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