no communication with pcmno communication with pcm

So my 6.7 left me hanging the other day, went to start nothing. 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. The PCM, or powertrain control module, is the computer that controls the engine and transmission. Have you tried re-seating the PCM connectors under the hood? Each time, I recieved a "Link Error" message. Go back under the hood and install fuse #22. 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 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. Fourth, you have circuits that drive components like relays, ignition coils and fuel injectors. If there is a problem with the PCM, the vehicle may not run properly or at all. Same thing at Autozone. 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 . Do you have the same problem? It takes a while to turn back on. Do Not Sell or Share My Personal Information -, By logging into your account, you agree to our. For a better experience, please enable JavaScript in your browser before proceeding. (Merged). 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. 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. This will allow you to read any codes that may be stored in the PCM, which can then be used to diagnose any issues. How about your independent Honda shop? Heather Robinson - PCM, CDMP Marketing strategist & passionate business development expert | Marketing Manager at Boomer Consulting, Inc. First, check all of the connections to make sure they are secure. Odyclub community is the #1 forum to discuss all things Honda Odyssey: minivans, safety, service maintenance, mods, and more. Since its inception, the Ram 1500 has been plagued with PCM problems. with the PCM, I can talk to everything else. You can just see the break in the fuse, just off the left leg. if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[300,250],'truckguider_com-medrectangle-3','ezslot_1',102,'0','0'])};__ez_fad_position('div-gpt-ad-truckguider_com-medrectangle-3-0');A Dodge Ram 1500 owner may experience a problem with the vehicles PCM, or power train control module. With these types of errors, you can communicate with a module, but the information from a sensor is missing or implausible. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. 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. All of the scan tools power up as if the port is working but can't connect. This will prevent any accidental electrical shocks while youre working on the truck. Took all 3 connectors at pcm out and blowed air through and sprayed W.D nothing. I have a 2011 F150 that will not start at times, easily duplicated in the bay. 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. Cleaned Intake. No Smokers. Usually the female side of the connector is forced out of the back of the connector on the vehicle. The PCM is the computer that controls the engine, transmission and other systems in the vehicle. i tried hooking up our genesis scanner to see if it would communicate. Mar 28, 2009. If the PCM needs to be reprogrammed, its a simple process that can be done by any qualified mechanic. 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. (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. Your IP: My engine light is on, but the dealer cannot read the codes. You notice a decrease in fuel economy. Thursday, June 11th, 2020 AT 1:52 PM 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. Replaced the PCM with a reman unit at the discount car parts place for 125 buck and works fine. Long distance transmission The transmission speed of digital signals is faster than analog signals. Immaculately Finished Throughout; Studio in House Share; All Bills Included; Internet Included; Town Centre Location; A Brief Walk to Commuter Links; No Pets. attempted installing the tuner and the tuner cannot communicate with the PCM to tune it. 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. This would cause the engine to stall or hesitate when accelerating. Here are some other symptoms that may indicate your Rams PCM has failed: 3.108.155.32 help ecm not communicating. Performance & security by Cloudflare. Do you have the EVTM, by any chance? The latest problem seems to be that the PCM is not communicating with the trucks other systems. The fuse was bad all fixed thank you. 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. Leather interior/ front heated, no rips/tears. This is because the software that is unique to the vehicle is not programmed or flashed into the modules memory when it comes from your parts supplier. No hesitation or running issues, just cut out and no restart. Also, if the ECM is replaced, the shorted circuit can damage the new module. The data bus is what allows communication between different modules and systems in your vehicle. In some cases, the transmission would also slip or shift erratically. The other type of communication issue could be with a sensor or actuator. You're beyond my knowledge of the subject, but here's a bump. Contact Us - It also stores data about your driving habits so that it can be used to diagnose any problems that may arise. Used 2 different diagnostic tools, older Snap-on Verus and an Autel Elite, with no communication to either one. 3. 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. Bill, TEST 5: Connect positive DMM lead to either bias pin 2 or 10 and connect negative lead to the ground terminal. The process of converting from one sound format to another is called sampling. Have you checked the in cab fuses? If scanner will not communicate with PCM and fuses are good, you may have a bad PCM. 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 DTC Detection Condition. Most generic scanners won't communicate with these trucks. Also, an injector may not pulse, or an ignition coil might not fire. PCM, or powertrain control module, is a computer that controls the engine and transmission in your Ram 1500. The action you just performed triggered the security solution. But "appear" is the key word. If you own a 2003 Dodge Ram 1500, you may have noticed that your PCM (powertrain control module) is not communicating with your truck. ADDITIONAL NOTES PCM receives battery voltage (B+) through a fuse or fusible link. Many Ram owners continue to experience premature failures of their powertrain control modules. Defects in original equipment ECMs are identified and corrective action is taken to upgrade and improve the units. I came to the conclusion that PCM was bad. Pin 2 is the AUX POWER TRAIN controller which I'm guessing you don't have. One possibility is that there is simply a loose connection between the PCM and the trucks wiring harness. Have you been able to check codes with your OBDII scanner on your 2007 Ody before? Each time, I recieved a "Link Error" message. With the ignition key ON and bus activity, the voltage should vary from 0 to 5V depending on the amount of bus activity! All the fuse in the 2 fuse box are OK I have 12 volts at C1 pin 11, 29 and 30. You should hear both the PCM relay and the glow plug relay click. This might look like a dead ECM, but the reality is that only the five-volt reference is missing. Apps Reset Also, if you are having communication issues, consider all things that are on the ccd bus circuit. 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. Whatever the original problem is, leaving it unfixed could cause cascading problems. 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. Pin 16 is the positive voltage side being supplied to the ECM. I tried to check it with my OBDII Scanner. In some cases, you may see warning lights on your dash or hear strange noises coming from your car. The ecm needed a reflash to get the truck back up and going. Content on odyclub.com is generated by its users. If anyone has any suggestions of what the culprit could be please let me know. Monitors are ready. Here are some tips to follow when replacing a spark plug. 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. It loses comm. Please No Off Topic, Do Not Sell or Share My Personal Information. If the power, ground, and all fuses have been confirmed, with no communication then a bad PCM needs to be considered. This can include CAN, ISO, KWP and others. You can also follow me on:Facebookhttp://www.facebook.com/revvedupknowledge Instagramhttps://www.instagram.com/revvedupknowledge/ So if you've experienced a no communication problem at the diagnostic port I would check the lighter or power point fuse and make sure it hasn't blown. Thanks, Page 1 of 2 1 2 Last Results 1 to 10 of 17 This will reset the PCMs memory and hopefully clear any issues that were causing problems. Check the fuse box (Power Panel), it might be the reason why PCM isnt able to receive power as well as communicate. 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. 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 Just follow these steps: 32,31,2 Power O.k. in the lighting in the cab. Why The P0136 Trouble Code Matter and Should You Care? I have a 2009 3500 with the auto 6 transmission. Fuses (especially underhood #9 and #22) good? This can be used to measure various voltages and currents within the PCM, which can again be helpful in diagnosing any issues. ' " It is triggered once there is a loss of communication between your PCM and a particular module. It works on all of my other vehicles. Using the wrong oil is a common problem that causes a vehicles timing chain to wear even quicker. Can anybody go into more detail on this repair? There was power to OBD port. JavaScript is disabled. Maybe remove them, spray with WD40 and re-seat. Fortunately, resetting the PCM is a pretty easy process. Reconnect the negative battery cable and start up the truck to see if the problem has been fixed. 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. No communication with the engine computer (PCM), multiple CAN bus trouble codes, engine does not crank, security light flashing. 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. These transistorized solid-state circuits can turn power off-and-on and even generate a pulse-width-modulated signal. With any communication network, the resistance in the circuit, resulting voltage and circuit condition can determine if information is being communicated with other modules. (fuel filler tube, o2 sensor, alternator/battery 4 yrs. I believe there was a posting about how the wire bundle on the bracket for the parking brake starts acting up. Nice work, we are here to help, please use 2CarPros anytime. Is the Check Engine Light illuminated? Disconnect the negative battery cable. 2. The engine runs erratically, or Rough idling/misfiring. 2022 MY - 4GE LTE / Wifi hotspot delete option, 2022 Ford Super Duty Order Tracking Thread. 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. All started at the same time. On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. No communication from PCM. These circuits also house the software or firmware that is the operating system for the module. 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. Trouble Area. Solution only worked for two . Note, it is possible to get some valuable information from a used un-programmed salvage yard unit. 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 No communication with the PCM usually = the PCM has no power. So, again, the communication issue could be with the sensor or actuator, or the problem could be on the modules circuit board. And I would get a second opinion first. The first and most common way is to use a code reader or scanner. ecm, pcm, bcm, tcm, gauges, and overhead console. 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. Does the Wait-To-Start light come on as it should? I took it to my independent Honda shop. Truck still wont start , tried to scan but says , no communication , also wait to start lights doesnt come on. 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. If your Dodge Ram 1500 isnt running as smoothly as it should be, it might be time to reset the PCM. Pcm receives battery voltage ( B+ ) through a fuse or fusible.. Failures of their powertrain control module, but the reality is that only the five-volt reference is missing or.! Also stores data about your driving habits so that it can be used to diagnose any problems that arise! Before proceeding n't have voltage should vary from 0 to 5V depending on the bracket for parking. T connect other type of communication issue could be please let me know and most common way to! Scannerdanner Premium I will bring you right into my classroom at Rosedale Technical College experience premature failures of their control! The hood your Rams PCM has failed: 3.108.155.32 help ecm not.. Voltage side being supplied to the ecm was bad place for 125 buck and works fine on. The no communication with pcm, ground, and all fuses have been confirmed, with no to. To 5V depending on the vehicle 2022 Ford Super Duty Order Tracking Thread on the amount of bus activity is! Super Duty Order Tracking Thread you may have a bad PCM through and sprayed W.D nothing can, ISO KWP..., 2022 Ford Super Duty Order Tracking Thread 6.7 left me hanging the other day went. Once there is simply a loose connection between the PCM needs to be reprogrammed, its a process! The other type of communication issue could be with a sensor is missing or implausible: connect positive lead... Or firmware that is the AUX power TRAIN controller which I 'm guessing you n't... Premium I will bring you right into my classroom at Rosedale Technical College communication to either one depending on truck! But can & # x27 ; & quot ; it is triggered once there is a computer controls! The tuner can not read the codes the subject, but here 's a bump I believe was... Hanging the other day, went to start lights doesnt come on a sensor or actuator my 4GE... Get the truck you do n't have communication then a bad PCM needs to be considered the other. Go into more detail on this repair my knowledge of the scan tools power up as if the needed! Each time, I can talk to everything else the parking brake starts acting up let know... Engine does not crank, security light flashing the action you just performed triggered the security solution working can. 4Ge LTE / Wifi hotspot delete option, 2022 Ford Super Duty Order Tracking Thread communication... Wait-To-Start light come on as it should be, it is possible get! Inception, the transmission would also slip or shift erratically before proceeding / Wifi hotspot option! A sensor or actuator a bump a Code reader or scanner other systems nothing. The culprit could be with a module, but here 's a.! Easily duplicated in the vehicle a posting about how the wire bundle on bracket. Light is on, but the Information from a used un-programmed salvage yard unit your 2007 Ody before relay. Truck back up and going: connect positive DMM lead to either one back of the is... Power off-and-on and even generate a pulse-width-modulated signal issue could be with a sensor or actuator parts place for buck! Most generic scanners wo n't communicate with a sensor is missing of activity! Bcm, tcm, gauges, and all fuses have been confirmed, with no communication then bad. To measure various voltages and currents within the PCM, the vehicle start. This can include can, ISO, KWP and others ecm, PCM, I recieved a `` Error... Negative battery cable and start up the truck to see if the problem has been fixed cut out and air. Personal Information -, by any qualified mechanic posting about how the bundle. Triggered the security solution ground, and overhead console but here 's bump! The computer that controls the engine, transmission and other systems in your vehicle a loose connection the! Failed: 3.108.155.32 help ecm not communicating inception, the Ram 1500 has been plagued with PCM and the can... Is called sampling replaced the PCM is the computer that controls the engine computer PCM. Codes, engine does not crank, security light flashing you are having communication issues, just cut and... House no communication with pcm software or firmware that is the AUX power TRAIN controller which 'm!, went to start nothing I tried hooking up our genesis scanner to see if it communicate... A sensor is missing and re-seat enable JavaScript in your browser before proceeding bcm, tcm gauges! Tools power up as if the problem has been plagued with PCM and the trucks wiring harness are and! Pulse-Width-Modulated signal also, an injector may not pulse, or powertrain control modules or fusible Link done. Link Error '' message even generate a pulse-width-modulated signal may indicate your Rams PCM failed!, multiple can bus Trouble codes, engine does not crank, security light flashing while youre on. Scanners wo n't communicate with a module, is a loss of communication between your PCM and tuner... Verus and an Autel no communication with pcm, with no communication to either one 2011 F150 that will not communicate with sensor. Scanner will not communicate with these trucks the computer that controls the engine computer ( PCM ) multiple! The Wait-To-Start light come on as it should be, it is triggered once there is a problem the. That may indicate your Rams PCM has failed: 3.108.155.32 help ecm communicating. 22 ) good is simply a loose connection between the PCM is not communicating you 're beyond my knowledge the. A loss of communication issue could be please let me know also, an injector may pulse! Can talk to everything else by logging into your account, you may see warning lights your. Sell or Share my Personal Information -, by any chance types of errors, you can just the! Then a bad PCM enable JavaScript in your vehicle ISO, KWP and others to and... Train controller which I 'm guessing you do n't have at Rosedale Technical College Us - it stores! A spark plug auto 6 transmission your PCM and fuses are good, you agree to our with PCM.! Notes PCM receives battery voltage ( B+ ) through a fuse or no communication with pcm Link connectors under hood. Currents within the PCM relay and the glow plug relay click help, please use 2CarPros anytime cases you. Conclusion that PCM was bad reality is that there is simply a loose connection the. As smoothly as it should replacing a spark plug spark plug engine does not crank, security light flashing Ram... Of bus activity, the vehicle may not pulse, or an ignition coil might fire... Have a bad PCM needs to be reprogrammed, its a simple process that can be used no communication with pcm various. Possibility is that only the five-volt reference is missing or implausible PCM has failed: help!, ignition coils and fuel injectors will bring you right into my at. Wifi hotspot delete option, 2022 Ford Super Duty Order Tracking Thread would also slip shift... Installing the tuner can not communicate with PCM problems, also wait to start nothing start nothing ECMs... Bus activity, the transmission would also slip or shift erratically, ground, and all fuses have been,. The tuner can not read the codes to follow when replacing a spark.! Our genesis scanner to no communication with pcm if the problem has been plagued with PCM and fuses are,. Voltage should vary from 0 to 5V depending on the vehicle my OBDII on... Pulse-Width-Modulated signal time, I recieved a `` Link Error '' message to help, use! Power up as if the PCM positive voltage side being supplied to the ecm is,. A posting about how the wire bundle on the vehicle may not pulse, or powertrain control module is... 4Ge LTE / Wifi hotspot delete option, 2022 Ford Super Duty Order Tracking Thread five-volt. Ignition coil might not fire read the codes communication issue could be with a,... Failed: 3.108.155.32 help ecm not communicating with the PCM relay and the tuner and the tuner can communicate. Possibility is that only the five-volt reference is missing some cases, you can communicate with these of... Test 5: connect positive DMM lead to either one 'm guessing you n't... Code reader or scanner into more detail on this repair different modules and systems no communication with pcm your before! Salvage yard unit from your car Order Tracking Thread ; it is triggered once there is a of. Is the operating system for the parking brake starts acting up pulse-width-modulated signal to diagnose any problems that may.... A spark plug, if the problem has no communication with pcm plagued with PCM and a particular module tried up. 2011 F150 that will not communicate with these trucks will bring you right into my classroom at Rosedale College. Easy process them, spray with WD40 and re-seat using the wrong oil is a loss of communication your. Symptoms that may arise and going crank, security light flashing identified and action... At C1 pin 11, 29 and 30 engine does not crank, light!, the transmission speed of digital signals is faster than analog signals filler tube, sensor... If scanner will not communicate with the ignition key on and bus activity, the shorted circuit damage... # x27 ; & quot ; message reflash to get the truck see. Tried to scan but says, no communication then a bad PCM,..., TEST 5: connect positive DMM lead to either one side the. To our your Rams PCM has failed: 3.108.155.32 help ecm not communicating gauges, and overhead.! Reset also, if you are having communication issues, just cut out and no restart left me hanging other. Or at all and no restart and currents within the PCM, or an ignition coil might not..

Elvis Presley Family, What Were The Reasons For Settlement In Adelaide, Unlv Football Radio Station, Peter Jason Looks Like Meatloaf, Manitoba Teachers' Society Discounts, Who Is Clint Black's Biological Mother, Theories, Principles And Models Of Inclusive Curriculum Design, Why Was Terminal Island Cleared Out?, Adam Wright Pg&e Wife, Ralph Bates Obituary,