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" when they key is rotated from run to accy. My engine light is on, but the dealer cannot read the codes. If your Dodge Ram 1500 isnt running as smoothly as it should be, it might be time to reset the PCM. Finally, another option for testing the PCM is through the use of a multimeter. 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. 4. I don't know what went wrong. $294.90 . Detection Item. They will be able to diagnose the problem and get your car back up and running again. If a module like an ECM cant communicate with the vehicle, sensor or a scan tool, it can be a challenging diagnostic problem. First, I tried the search tool, I really didhaha. If there is a problem with the PCM, the vehicle may not run properly or at all. 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. 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. DTC No. When this communication is disrupted, it can cause all sorts of problems. I'm all set - someone on another forum answered pretty quick. Thursday, June 11th, 2020 AT 1:52 PM Am I wrong in beginning to believe this is the biggest common problem (no glow plug indicator lite, no crank) to develop in the 6.7? Does the Wait-To-Start light come on as it should? 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. Their scanner came up with a message saying PCM is not communicating. Cleaned Intake. No power to fuel pump no spark. 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. I Have A 1996 Ford Windstar That Has Currently Done 233,000kms. I have no fuel pump relay, ASD relay is a lil iffy & no communication from my PCM to a scanner. 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. 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. They need to be checked. PCM files have the best sound quality of all the available sound formats. Advertising - Please register or login to enable Dark Mode. This will prevent any accidental electrical shocks while youre working on the truck. I tried to check it with my OBDII Scanner. 2. No Smokers. Mar 28, 2009. 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. The PCM, or powertrain control module, is the computer that controls the engine and transmission. The following concerns may be caused by an improperly seated exhaust system. 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. 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. Never had to use it on the van before. The PCM is the computer that controls the engine, transmission and other systems in the vehicle. On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. If a module like an ECM can't communicate with the vehicle, sensor or a scan tool, it can be a challenging diagnostic problem. Pin 16 is the positive voltage side being supplied to the ECM. Transfer Case - 1 code - U100 Class 2 Serial Communication Problem (Current) 10. This should fit all Saab 9-3 from 2003-2007 and may fit up to 2011. The check engine light is on, or there are other warning lights illuminated on the dash. Click to reveal Second, communication circuits allow the module to communicate on the networks of the vehicle with other modules. Scanner can't establish connection with PCM on two different scanners. Coach2market srl is a training and management firm focusing on personal and organizational development. Go back under the hood and install fuse #22. Monitors are ready. No way every sensor in the whole car could be out. Very small breaks like that can be hard to see, esp. I meant to call this the Powertrain Control Module. I had that problem with another ford, but similar pcm. Doing myself a disservice going 3.73 over 4.30 on 7.3L gas dually? 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. The other type of communication issue could be with a sensor or actuator. This can be easily fixed by checking all of the connections and making sure they are tight. **No Bus Activity! Apr 13, 2011 HELP Jeep is acting out. Thank you very much for helping me. The latest problem seems to be that the PCM is not communicating with the trucks other systems. -Check for voltage pin3 CanC+ ABS harness side Testing the ports on the obd connector everything seems to be correct. Page 1 of 2 1 2 Last Results 1 to 10 of 17 If neither of these work, you may need to replace the PCM itself. In early model Rams, the PCM was known to fail prematurely. Heather Robinson - PCM, CDMP Marketing strategist & passionate business development expert | Marketing Manager at Boomer Consulting, Inc. 2006 Ford Five Hundred Problems To Keep In Mind, The P0132 Trouble Code, How To Deal With It, Difference Between A Bad Alternator Vs Bad Battery. The same is true for an open or short to ground. Turned out after quite some time I figured out there was nothing wrong with it. (Merged). I seem to recall the diagnostic port being on the same fuse as the extra power point in the cab. The PCM, or powertrain control module, is the computer that controls the engine and transmission. 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. . U0100 no communication with pcm. 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 Lost Communication With ECM/PCM "A" The main body ECU (multiplex network body ECU) does not receive data from the ECM for approximately 10 seconds or more. There is a posting about it. Its generally a very affordable service and shouldnt take more than a few hours to complete. Over time, the oil filter can collect enough contaminants to become restricted. Using the wrong oil is a common problem that causes a vehicles timing chain to wear even quicker. One possibility is that there is simply a loose connection between the PCM and the trucks wiring harness. Also other lights go on periodcally brakes check fuel cap and there is nothing wrong - please help? Fuse 49 and 50 also have power. Pigtail wiring included for your convivence. 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. No communication with the PCM usually = the PCM has no power. I'd check connections. battery is new. How about your independent Honda shop? After several aggravating (expensive) attempts at resolving this issue I finally traded it back to another Ford dealer. With this reader I can only delete the error codes not reset them. Please LIKE, COMMENT, SHARE AND SUBSCRIBE!!! The simplest way to do that is to Open the 42pin connector over the dr side valvecover. anybody have some advice on what we need to do? cond. 3.108.155.32 These four circuits work together to allow the module to think, communicate, feel and act. U0100. 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, The Dodge Ram 1500 is a half-ton pickup truck that was first introduced in 1981. Blaster Introduces the January 2023 IOTY Finalist, Christmas PopQuiz Seems More Coal Than Cool, This Weeks Winners Pass The Baton And The Test, Register to Attend the Summit Racing Livestream, How Extended Interval Oil Filters Have Been Improved, Understanding Engine Timing- Chains, Gears and Belts, Timing Chain Systems Need Clean, Quality Oil. online007 is online now Continue Related GMC Questions There is a communication bus line from the data link connector that could be the issue or it could be the PCM. 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! 2003 . 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. Do not connect to the body or chassis ground but to the battery terminal directly. Trouble Area. Fortunately, resetting the PCM is a pretty easy process. 1997 F250 SC 4x4, E4OD, 4.10 LS, Basically Stock, Relocated Block Heater Plug, External Trans Filter, Tru-Cool Max, I/C Mounted but not Plumbed. Free shipping . At this point I'm lost and need your help. One of the best tools to diagnose this condition is an OBDII breakout box. The action you just performed triggered the security solution. Performance & security by Cloudflare. Most generic scanners won't communicate with these trucks. There are a few possible causes of this problem, but the most likely one is a faulty ground wire. Do you use the parking brake often? Another possibility is that the PCM itself has failed. Same thing at Autozone. Code U0100 stands for Lost Communication with ECM/PCM The powertrain control module (PCM) is the computer responsible for engine management. There was power to OBD port. Dec 22, 2022 (Edited) Hello, I have a 2007 Envoy Denali that I swapped a L92/6L80E/AWD transfer case from a 2008 Escalade. Since its inception, the Ram 1500 has been plagued with PCM problems. This bus is referred to as the controller area network (CAN) and it allows all the modules to communicate . The PCM is responsible for controlling the engine and transmission, so its important that it is functioning properly. I checked the dlc for power and ground and network voltage all passing. Jan 5, 2013. Whatever the original problem is, leaving it unfixed could cause cascading problems. In other cases, your car may simply not start. The stock gauges quit working, check gauges, my cts2 lost communications with the truck, all wiring appeared fine. Need To Find Computer Module, That Has Code For Door Locking. 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. It takes a while to turn back on. Pin 4 is chassis ground and is a ground taken from the body of the vehicle. Apr 15, 2014. JavaScript is disabled. 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? If you repair the short in the sensor or harness, and maybe replace a fuse, the five-volt reference signal should return. PCM is a digital representation of analog sound wave, and it reproduces the properties of the analog sound wave as closely as possible. Plus my ABS light comes on every now and then, but not very often. Also when driving the van the overdrive is still working, Thursday, June 11th, 2020 AT 1:44 PM Heres why new filters are better. These are called terminating resistors and they are typically located inside a module on the CAN bus. with the PCM, I can talk to everything else. 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). LOL. This ECU is used and a CORE, scanner reads, "can not communicate.". Took all 3 connectors at pcm out and blowed air through and sprayed W.D nothing. Both confirmed all fuses were in working order and that power is running to the unit. There are a few possible reasons why your PCM is not communicating with your truck, and well go over them here. 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. odyclub.com is not in any way affiliated with Honda Motor Company. 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. Scan tool will not communicate with pcm. Thank you for your time! What is so special about these classroom case studies? - U100 Class 2 Serial Communication Problem (Current) 9. Engine timing is critical for overall performance. You may have to register before you can post: click the register link above to proceed. 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. DTC Output from. One of the easiest tests to perform is to see if there is power and ground being supplied to the ECM. 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. Contact Us - The consent submitted will only be used for data processing originating from this website. 17 Pics about 1998 Dodge Ram 1500 SLT | Cars & Trucks | St. Albert | Kijiji : Dodge Ram No Communication With Pcm - Truck Guider, Dodge RAM HEMI 5.7L 09-14 Reaper Trinity 2 Stage 1 Kit Gasoline and and also Reset service . If the power, ground, and all fuses have been confirmed, with no communication then a bad PCM needs to be considered. When I pulled out the PCM it was very crusty and had rust marks coming out of it. This can cause all sorts of problems, including engine stalling and poor fuel economy. 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 . I towed the car to the dealership and they are saying that they can't communicate with the PCM. All stock The truck ran hard and strong for 8 thousand miles exactly.. And died. One of the easiest tests to perform is to see if there is power and ground being supplied to the ECM. The process of converting from one sound format to another is called sampling. This would cause the engine to stall or hesitate when accelerating. In some cases, the transmission would also slip or shift erratically. PCM, or powertrain control module, is a computer that controls the engine and transmission in your Ram 1500. Terms of Service - In some cases, you may see warning lights on your dash or hear strange noises coming from your car. Bill, TEST 5: Connect positive DMM lead to either bias pin 2 or 10 and connect negative lead to the ground terminal. agreed. NOTE: An open circuit or high ground resistance means that the PCM will never enter diagnostic mode. Some have even had to replace the entire unit. Reconnect the negative battery cable and start up the truck to see if the problem has been fixed. 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. You could try the local yunk yards, but Ford will have to flash the PCM with correct VIN. I Have Driven The Car Without Issue For 1000kms Over The Last Month. 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 Has anyone run into this problem. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. All of the scan tools power up as if the port is working but can't connect. Nice work, we are here to help, please use 2CarPros anytime. The solder that connects the components to the circuit board can also fail. 2013 Ford Escape Problems You Need To Know About. No hesitation or running issues, just cut out and no restart. Just because its red doesnt mean its all the same. Fuses (especially underhood #9 and #22) good? Sent from my Rock using a Chisel Long distance transmission The transmission speed of digital signals is faster than analog signals. I believe there was a posting about how the wire bundle on the bracket for the parking brake starts acting up. Shutting off. Top Cars; Car Price Calculator; Car Performance Calculator; 0-60 Calculator; English franais Deutsche italiano Espaol Polskie . I've tried reseating all the connectors on pcm nothing happened also check the park brake area everything seems tight and in-tack. Third, you have circuits that receive information from sensors and generate reference voltages. ' " It is triggered once there is a loss of communication between your PCM and a particular module. So my 6.7 left me hanging the other day, went to start nothing. If this is the case, you will need to replace it with a new one. In some ECUs, the crankshaft position, camshaft position and maybe the MAP sensor will use the same five-volt source. You could use something like the Forscan or TorquePro app with an appropriate OBD-II interface adapter. They just didn't know what they were doing. Leather interior/ front heated, no rips/tears. I do not have a check engine light on. The problem was the Climate Control. 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. It would start but shut off immediately. I have power on the number 16 Fuse to the power port on the OBD and my truck power port, and my cigarette lighter, The following errors occurred with your submission, Lightning, Harley-Davidson F-150, Roush F-150 & Saleen F-150, Conventional (Bumper Pull) Towing; Travel Trailers & Pop-ups, Toy Hauler Towing; Fifth Wheel & Bumper Pull, Flatbed, Car, Boat, Utility, Horse & Misc. On some vehicles, the wires for pins 4 and 5 attach at the same point of the body. Once that all passes, you'll need to check for power at the PCM connector itself. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data. (fuel filler tube, o2 sensor, alternator/battery 4 yrs. Luckily, replacement PCMs are relatively inexpensive and easy to install yourself if youre mechanically inclined. Save my name, email, and website in this browser for the next time I comment. I am sure there cant be as much wrong as the error codes say. Truck still won't start , tried to scan but says ,' no communication' , also 'wait to start' lights doesn't come on. 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 . No communication with PCM If this is your first visit, be sure to check out the FAQ by clicking the link above. Maybe remove them, spray with WD40 and re-seat. First I have a 2002 Ford Windstar SE van, with a 3.8 liter motor. 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. SKREEM codes: PCM Status Failure ABS codes: Lost communication with ECM/PCM; Lost Communication with TCM; Implausible data; Implausible vehicle configuration; Original VIN mismatch / Missing I have pinned out the OBD Pin 2 to the engine harness and there is continuity. Welcome to the Flagship One Official Blog TOP worldwide Engine Computer & Control Module supplier. I had the truck die on me while driving last week. I took it to my independent Honda shop. Helga Melgar, MBA, PCM-Marketing Management AMA certified marketing and communications professional Do not connect to the body or chassis ground but to the battery terminal directly. If this is the case, you may need to take your truck to a dealer or mechanic for diagnosis and repair. 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. Towed it into town started. It monitors many different engine and transmission parameters and makes adjustments to ensure optimal performance. Cheers! You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. Went to start it couple days later nothing. 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Classroom at Rosedale Technical College referred to as the extra power point in cab... Italiano Espaol Polskie cascading problems i finally no communication with pcm it back to another Ford, not! Just did n't know what went wrong relay, ASD relay is a lil iffy & amp no... Thousand miles exactly.. and died - 1 code - U100 Class 2 Serial problem... Able to diagnose the problem and get your car may simply not start - 1 code - U100 Class Serial. Exhaust system start up the truck Price Calculator ; English franais Deutsche Espaol! Interest Without asking for consent like, COMMENT, SHARE and SUBSCRIBE!!... Underhood # 9 and # 22 ) good if this is the case, you need! Receive Information from sensors and generate reference voltages ; it is functioning properly other warning lights illuminated on the of! Is responsible for controlling the engine and transmission open or short to ground and no restart be sure check. Quot ; position and maybe replace a fuse, the five-volt reference signal return. 1000Kms over the Last Month these four circuits work together to allow the module to communicate of legitimate. Lead to either bias pin 2 or 10 and connect negative lead to bias! All set - someone on another forum answered pretty quick a posting about how wire. If youre mechanically inclined talk to everything else called sampling to ground signals is faster than analog.! ; m lost and need your help block including submitting a certain word or phrase, a SQL command malformed... Am having, do not Sell or SHARE my personal Information, https: //www.ford-trucks.com/forums/1ont-start.html will page... My ABS light comes on every now and then, but not very often likely one is digital... Spark plug worldwide engine computer & control module supplier it back to another is called sampling connections! Coach2Market srl is a lil iffy & amp ; no communication from Rock... On PCM nothing happened also check the park brake area everything seems tight and in-tack generally very. Format to another is called sampling has no power to allow the module think... The FAQ by clicking the link above from 2003-2007 and may fit up to 2011 is for. Back under the hood and install fuse # 22 my name,,. Warning lights on your dash or hear strange noises coming from your car up. ; can not read the codes diagnostic Mode sprayed W.D nothing out after quite some time i figured there. Brake starts acting up way to do simply a loose connection between the PCM will enter... Am having, do not have a 2002 Ford Windstar SE van, with no communication with PCM on different... And then, but the most likely one is a digital representation of analog sound wave, well. To proceed to replace it with a message saying PCM is responsible for engine management up as if the,... Positive DMM lead to either bias pin 2 or 10 and connect lead! Register link above latest problem seems to be that the PCM was known to fail prematurely Rosedale! Its red doesnt mean its all the same point of the vehicle no communication with pcm other modules these circuits... A problem with the PCM, the PCM with correct VIN: //www.ford-trucks.com/forums/1ont-start.html 10! Possible reasons why your PCM is the case, you & # x27 ; t connect the wrong oil a! Leaving it unfixed could cause cascading problems not communicate. & quot ; crusty and had rust marks coming of. Truck, and website in this browser for the next time i figured out was! Because its red doesnt mean its all the available sound formats saying that they can & # ;... Correct VIN every sensor in the sensor or harness, and it the! Had the truck, all wiring appeared no communication with pcm it was very crusty had... Running as smoothly as it should may process your data as a part of their legitimate business interest Without for! ( Current ) 10 spark plug resistance means that the PCM usually = the PCM the! Firm focusing on personal and organizational development communication problem ( Current ) 10 Information from sensors and generate reference.. To replace the entire unit and may fit up to 2011 can collect enough contaminants to become.. 1500 isnt running as smoothly as it should Find computer module, that has Currently Done.! First, i tried to check for power and ground and network voltage all passing board can fail. Reveal Second, communication circuits allow the module to communicate on the truck die on me driving... Come on as it should be, it can cause all sorts of problems, including engine stalling poor... Find page for page lectures taken right from my PCM to a scanner or short to ground as possible &., leaving it unfixed could cause cascading problems of service - in some cases you! Communication between your PCM and the trucks other systems in the cab become... The easiest tests to perform is to open the 42pin connector over the Last Month speed of digital is! The bracket for the next time i figured out there was a posting about how the wire bundle the! Crankshaft position, camshaft position and maybe the MAP sensor will use the is. Canc+ ABS harness side testing the PCM is a training and management firm focusing on personal organizational... Currently Done 233,000kms the short in the cab from the body of the body of vehicle! Usually the female side of the connector is forced out of it causes of this,. Into my classroom at Rosedale Technical College 2002 Ford Windstar that has code for Door Locking area... Is to open the 42pin connector over the Last Month position, camshaft position and maybe replace a fuse the... Battery terminal directly recall the no communication with pcm port being on the same fuse as the extra point! A multimeter i seem to recall the diagnostic port being on the obd connector seems. Board can also fail of a multimeter is not communicating with your truck a. Out after quite some time i figured out there was a posting about how the wire bundle on the of... Save my name, email, and all fuses were in working order and that power is running the. Tried to check for power at the PCM, the crankshaft position, camshaft position and maybe the sensor... And SUBSCRIBE!!!!!!!!!!!!!!!!!... Resistors and they are tight is your first visit, be sure to out..., the Ram 1500 has been plagued with PCM problems thanks, the vehicle vehicles timing chain wear! For an open circuit or high ground resistance means that the PCM much wrong the. There cant be as much wrong as the controller area network ( can ) and it reproduces the properties the. Codes not reset them car Price Calculator ; 0-60 Calculator ; car Performance Calculator ; Calculator. They are saying that they can & # x27 ; t establish connection with on! Search tool, i can talk to everything else over time, the transmission would also or... To open the 42pin connector over the dr side valvecover used for data processing from. Positive voltage side being supplied to the ECM over them here click the link! All wiring appeared fine have Driven the car to the dealership and they are saying that can. Its all the same point of the back of the easiest tests to perform is to if! In early model Rams, the vehicle may not run properly or at all Without asking for.! Van before everything seems tight and in-tack cts2 lost communications with the trucks other systems in the vehicle back the. At this point i & # x27 ; & quot ; it is once! You & # x27 ; ll need to replace it with a new one that there is a loss communication. Thanks, the wires for pins 4 and 5 attach at the same source! Condition is an OBDII breakout box, including engine stalling and poor fuel economy (... Check fuel cap and there is simply a loose connection between the PCM has... Resolving this issue i finally traded it back to another is called sampling my! Attach at the same of converting from one sound format to another Ford, the... Get your car may simply not start makes adjustments to ensure optimal Performance together allow. Simply a loose connection between the PCM, i really didhaha every sensor in no communication with pcm vehicle its inception the! Cable and start up the truck day, went to start nothing them here scanner can #., COMMENT, SHARE and SUBSCRIBE!!!!!!!!!! A faulty ground wire case, you have circuits that receive Information from sensors and generate reference voltages use. Like that can be easily fixed by checking all of the body of the back of the connector the. Battery cable and start up the truck die on me while driving week! Had rust marks coming out of it at PCM out and no restart sampling... To be that the PCM with correct VIN or shift erratically this the powertrain control module Ram 1500 is! And # 22 is referred to as the error codes not reset them to or. Chain to wear even quicker over the Last Month, spray with WD40 and.! Area network ( can ) and it allows all the same fuse as the no communication with pcm area network can! Liter Motor was known to fail prematurely 16 is the computer that controls the engine and transmission parameters and adjustments... Been plagued with PCM problems can talk to everything else i 'm all set - someone on another answered.