no communication with pcm

DTC Detection Condition. 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. Monitors are ready. Using a scan tool to communicate with different modules can confirm operation and the source of communication codes. I took it to my independent Honda shop. But, a lot of the damage to an ECM comes from the connected components. Just because its red doesnt mean its all the same. Is this an Engine Computer or a Body Control Module? Same thing at Autozone. 94.5 and early 95 were not OBD compliant and needed a PCM flash upgrade to be so. Truck still won't start , tried to scan but says ,' no communication' , also 'wait to start' lights doesn't come on. You're beyond my knowledge of the subject, but here's a bump. Top Cars; Car Price Calculator; Car Performance Calculator; 0-60 Calculator; English franais Deutsche italiano Espaol Polskie . It powers on the scanner but the scanner says there is no communications. 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. Does the data link have power? (Merged), I have the same problem with mine. About Us - Cookie Policy - 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. Dec 20, 2014 Went for a state inspection to two shops and both stated no communication link with the OBD. JavaScript is disabled. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data. 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 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! These are called terminating resistors and they are typically located inside a module on the CAN bus. Please No Off Topic, Do Not Sell or Share My Personal Information. Looking for some input from someone. Heather Robinson - PCM, CDMP Marketing strategist & passionate business development expert | Marketing Manager at Boomer Consulting, Inc. agreed. 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: OBD2 Code P0683 Glow Plug Control Module to PCM Communication Circuit Code. There is no way to repair the driver on the circuit board. Terms of Service - Your IP: 3.108.155.32 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. Need To Find Computer Module, That Has Code For Door Locking. 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. I Have A 1996 Ford Windstar That Has Currently Done 233,000kms. Had a guy with a confirmed good ecu come out today, still nothing, no communication. It has no connection to the PCM. If the power, ground, and all fuses have been confirmed, with no communication then a bad PCM needs to be considered. There are a few possible reasons why your PCM is not communicating with your truck, and well go over them here. Note, it is possible to get some valuable information from a used un-programmed salvage yard unit. Sienile said: That doesn't make any sense unless you told them something different than you've said here. Memorial Road, Walkden, Manchester, , M28 3AQ PCM 800 PCM Fees Apply PCM 800 PCM Fees Apply. How about your independent Honda shop? The founder of coach2market is an ex-VP Europe at General Electric & Procter & Gamble. 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. 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 No Code, just that message. Pin 4 is chassis ground and is a ground taken from the body of the vehicle. Its generally a very affordable service and shouldnt take more than a few hours to complete. The ecm needed a reflash to get the truck back up and going. U0100 no communication with pcm. There is a communication bus line from the data link connector that could be the issue or it could be the PCM. Disconnect the negative battery cable. In other cases, your car may simply not start. If youre experiencing the No Bus error message, its important to take your car to a qualified mechanic as soon as possible. The action you just performed triggered the security solution. My Toyota dealer told me that about my ABS computer on my Tacoma. in the lighting in the cab. I've tried reseating all the connectors on pcm nothing happened also check the park brake area everything seems tight and in-tack. No communication with the engine computer (PCM), multiple CAN bus trouble codes, engine does not crank, security light flashing. No communication from PCM. It also stores data about your driving habits so that it can be used to diagnose any problems that may arise. ' " It is triggered once there is a loss of communication between your PCM and a particular module. . Just follow these steps: First, check all of the connections to make sure they are secure. 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 *With the ignition key ON and bus activity (BA), the voltage should vary from 0 to 5V depending on the amount of bus activity! NOTE: An open circuit or high ground resistance means that the PCM will never enter diagnostic mode. Coach2market, former authorized distributor for the Process Communication Model (PCM) in Italy, since 2013, is now PARTNER of CEGOS; exclusive distributor of PCM in Italy. DTC Output from. Click to reveal When key is turned to run no glow plug light, no fuel pump prime. Checked fuses, swapped IPDMs with another car. I took it to my independent Honda shop. All the fuse in the 2 fuse box are OK I have 12 volts at C1 pin 11, 29 and 30. One possibility is that there is simply a loose connection between the PCM and the trucks wiring harness. Checked wiring and fuses even swapped PCM with a used one that was good. Pin 16 is the positive voltage side being supplied to the ECM. repaired the break and started up no problem. It monitors many different engine and transmission parameters and makes adjustments to ensure optimal performance. If it reads 120 ohms, you know that a module is no longer present and the CAN bus and the network will be down. Engine timing is critical for overall performance. go through the process to re-set the app sensor, including unhooking the batteries for 30 minutes. Seat module - driver 4 . They said that the SKIM was bad. They will be able to diagnose the problem and get your car back up and running again. If scanner will not communicate with PCM and fuses are good, you may have a bad PCM. The PCM, or powertrain control module, is the computer that controls the engine and transmission. The stock gauges quit working, check gauges, my cts2 lost communications with the truck, all wiring appeared fine. *Ignition ON/NBA** BUS+(2) should read 0V BUS (10) should read 5V 2003-2006 SAAB 9-3 2.0L FWD ECU ECM PCM Engine Computer Module 55567225 . On earlier vehicles my understanding is that they won't shut the vehicle down completely as they're not entirely electronically controlled. 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 . Tried 2 new Batteries nothing. If there is high resistance in a module or part of the wiring harness it can bring down the network. We and our partners use cookies to Store and/or access information on a device. Have you tried re-seating the PCM connectors under the hood? Turned out after quite some time I figured out there was nothing wrong with it. 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. Cleaned Intake. I came to the conclusion that PCM was bad. Used 2 different diagnostic tools, older Snap-on Verus and an Autel Elite, with no communication to either one. Thanks for the report. Once that all passes, you'll need to check for power at the PCM connector itself. Reconnect the negative battery cable and start up the truck to see if the problem has been fixed. So, again, the communication issue could be with the sensor or actuator, or the problem could be on the modules circuit board. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. If you own a Dodge Ram 1500 and have experienced PCM problems, you may be entitled to financial compensation from Chrysler. 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. Customer Question. This can be performed by using the OBDII connector. ADDITIONAL INFORMATION: Old PCM is fried, see the attached picture when attempts are made to communicate after fixing the wiring problem. If this is the case, you will need to replace it with a new one. I'm all set - someone on another forum answered pretty quick. What is so special about these classroom case studies? Recently the CEL came on. The engine runs erratically, or Rough idling/misfiring. Many new parts. Since most networks on the vehicle can be accessed through the OBDII connector, this tool helps you observe if the network is active, open or shorted. I am sure there cant be as much wrong as the error codes say. Pin 16 is the positive voltage side being supplied to the ECM. 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. An example of data being processed may be a unique identifier stored in a cookie. 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? 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. Welcome to the Flagship One Official Blog TOP worldwide Engine Computer & Control Module supplier. It loses comm. PCM is receiving 12v in start/run When I pulled out the PCM it was very crusty and had rust marks coming out of it. No error or any communication with the reader. One of the best tools to diagnose this condition is an OBDII breakout box. Now I am going through a check engine light on with vibrations and my diagnostic port does not work (AutoZone says I have a short or something somewhere in my dash). Buried deeply in all those codes was 'computer'. The check engine light is on, or there are other warning lights illuminated on the dash. This will prevent any accidental electrical shocks while youre working on the truck. Is the Check Engine Light illuminated? 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. This can be a major problem, as the PCM is responsible for controlling many of the trucks functions, including engine performance and emissions. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. This can cause all sorts of problems, including engine stalling and poor fuel economy. [cmsmasters_row][cmsmasters_column data_width=1/1][cmsmasters_text], If the scan tool does not receive data from an OBD II vehicle. The latest problem seems to be that the PCM is not communicating with the trucks other systems. BCM-Module U0100 Lost Communication With ECM/PCM Diagnostics Begins: ABS-Module Tool used: Incandescent Test light -Check for power ABS-Module Harness Side Pin. In early model Rams, the PCM was known to fail prematurely. Even tried with connector on transmission. Thanks guys. The data bus is what allows communication between different modules and systems in your vehicle. Went to start it couple days later nothing. Sent from my Rock using a Chisel Each time, I recieved a "Link Error" message. Free shipping . Engine 2. Some have even had to replace the entire unit. Do you have the same problem? 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. This ECU is used and a CORE, scanner reads, "can not communicate.". Apr 15, 2014. Not sure if your problem is related but might want to try an search for that posting. Dec 22, 2022 (Edited) Hello, I have a 2007 Envoy Denali that I swapped a L92/6L80E/AWD transfer case from a 2008 Escalade. Leather interior/ front heated, no rips/tears. The solder that connects the components to the circuit board can also fail. I do not have a check engine light on. If it gets out of whack, it can cause all sorts of problems. 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. Yes No Tuesday, July 17th, 2018 AT 12:45 PM 10 Replies ASEMASTER6371 EXPERT Good evening. If neither of these work, you may need to replace the PCM itself. ADDITIONAL NOTES PCM receives battery voltage (B+) through a fuse or fusible link. -Check for voltage pin3 CanC+ ABS harness side Learning how to perform drivetrain diagnostics and in-the-car repairs is important. Installed in 2022. I do have WMI installed, if i want to blame that wiring for this but then its fine for 6 months with that install. Third, you have circuits that receive information from sensors and generate reference voltages. Thank you for your time! All grounds on PCM harness are good. Thanks, To start viewing messages, select the forum that you want to visit from the selection below. 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!!) At this point I'm lost and need your help. 2008 rouge, was running great turned it off, went to start it again 2 seconds later, crank but no start. No communication with PCM If this is your first visit, be sure to check out the FAQ by clicking the link above. Proper voltages and Ohms. Shutting off. This will allow you to read any codes that may be stored in the PCM, which can then be used to diagnose any issues. 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. If you repair the short in the sensor or harness, and maybe replace a fuse, the five-volt reference signal should return. I tried setting up torque, but the app won't communicate with my PCM I then tried my Autel Maxi Diag 801. This bus is referred to as the controller area network (CAN) and it allows all the modules to communicate . You notice a decrease in fuel economy. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. 2012 Altima 2.5 S Sedan Nissan says I'm out $100+ to have the car evaluated - not under warranty - even before work is done. Scanner can't establish connection with PCM on two different scanners. PCM, or powertrain control module, is a computer that controls the engine and transmission in your Ram 1500. phillofoc Registered Joined Mar 14, 2018 2,058 Posts JavaScript is disabled. 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. Here are some tips to follow when replacing a spark plug. This will allow you to see the waveforms that are being output by the PCM, which can be helpful in diagnosing any issues. In some ECUs, the crankshaft position, camshaft position and maybe the MAP sensor will use the same five-volt source. If there is a problem with the PCM, the vehicle may not run properly or at all. 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. Privacy Statement - not sure if its a wiring problem or if its the PCM itself. 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 With over a decade in the business, we are the most reliable source when it comes to programming services for replacement engine control modules. Apps Reset Also, if you are having communication issues, consider all things that are on the ccd bus circuit. Continue with Recommended Cookies. With any communication network, the resistance in the circuit, resulting voltage and circuit condition can determine if information is being communicated with other modules. **No Bus Activity! Hello everyone, Looking for some ideas on what I may be missing. Thank you very much for helping me. This can be performed by using the OBDII connector. Any chip or other mods? 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. Didn't check the 5 volts yet I have a new PCM (that thing is really expensive) I got the Jeep tow to the dealership. My engine light is on, but the dealer cannot read the codes. Initially The Code Was https://www.2carpros.com/articles/how-to-check-a-car-fuse, https://www.2carpros.com/articles/scan-test-is-incomplete-p1000. What to do if the OBD II scanner doesnt communicate with the vehicle. What year is your truck? 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. I am hoping for a miracle and someone on here can solve my problem. I seem to recall the diagnostic port being on the same fuse as the extra power point in the cab. Like the other computers (known as modules) onboard your vehicle, the PCM communicates over a bus. Don't know anything about the torque App so no help there. The engine will not start, or it starts and then stalls. U0100. It would start but shut off immediately. Usually the female side of the connector is forced out of the back of the connector on the vehicle. Over time, the oil filter can collect enough contaminants to become restricted. Currently at 83K. It works on all of my other vehicles. Do not connect to the body or chassis ground but to the battery terminal directly. What is the difference between the grounds? Scan tool will not communicate with pcm. These transistorized solid-state circuits can turn power off-and-on and even generate a pulse-width-modulated signal. 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. First I have a 2002 Ford Windstar SE van, with a 3.8 liter motor. Last year my truck got struck by lightning. 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 They just didn't know what they were doing. 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.. Very small breaks like that can be hard to see, esp. Their scanner came up with a message saying PCM is not communicating. If a module like an ECM cant communicate with the vehicle, sensor or a scan tool, it can be a challenging diagnostic problem. [/cmsmasters_text][/cmsmasters_column][/cmsmasters_row], TFor 2008 FX35 Infinit 3,5L If anyone has any suggestions of what the culprit could be please let me know. 32,31,2 Power O.k. Jump the plug by right battery starter turns. 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. Tailgate is rust free from the south. No communication with the PCM usually = the PCM has no power. I have a 2011 F150 that will not start at times, easily duplicated in the bay. Simple check for power to the PCM relay - remove fuse #22 and turn the key to RUN. I tried to check it with my OBDII Scanner. A tool used Digital Multimeter. Performance & security by Cloudflare. 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" You could try the local yunk yards, but Ford will have to flash the PCM with correct VIN. 2. Manage Preferences - Nice work, we are here to help, please use 2CarPros anytime. Next, try resetting the PCM by disconnecting the battery for 30 seconds. 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. Do not connect to the body or chassis ground but to the battery terminal directly. Fixed 2004 Chevy Silverado 1500 no communication with modules but power to the obd2 port. 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? ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. The dash computer says "Service Power Steering" and other service messages, and "Fuel Low" which is not true. Doing myself a disservice going 3.73 over 4.30 on 7.3L gas dually? To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. 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. Took to a mechanic. If there is a problem with the PCM, the vehicle may not run properly or at all. You may have to register before you can post: click the register link above to proceed. The fuse was bad all fixed thank you. -Check for Ground ABS-Module Harness Side pin 16,45 Ground O.K. This would cause the engine to stall or hesitate when accelerating. Since its inception, the Ram 1500 has been plagued with PCM problems. One of the easiest tests to perform is to see if there is power and ground being supplied to the ECM. No way every sensor in the whole car could be out. No Smokers. I had the truck die on me while driving last week. Sometimes, there will be a DTC for the circuit; sometimes there wont be a code. 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. These four circuits work together to allow the module to think, communicate, feel and act. Content on odyclub.com is generated by its users. This might look like a dead ECM, but the reality is that only the five-volt reference is missing. They said they can replace it but they are not able to . On some vehicles, the wires for pins 4 and 5 attach at the same point of the body. 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. Its usually labeled PCM or ECU. Pull it out and wait a few minutes before putting it back in. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. 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. Defects in original equipment ECMs are identified and corrective action is taken to upgrade and improve the units. How to Reset the Engine Control Module With No Hassle. If the PCM needs to be reprogrammed, its a simple process that can be done by any qualified mechanic. 2003 . Thank you. Archive - 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 dvd player. Ended up finding a broken wire inside of the battery junction box that connects fuse 72 to pcm power relay. I notice it because last year I had the same problem with my 2014 6.7. 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. On older throttle cable systems, the carburetor or fuel injection system reacted to the throttle angle. Detection Item. 3. Full Description. DTC No. Rear power hatch not working. The other type of communication issue could be with a sensor or actuator. The Fora platform includes forum software by XenForo, VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada, odyclub.com is an independent Honda enthusiast website owned and operated by VerticalScope Inc. If your Dodge Ram 1500 isnt running as smoothly as it should be, it might be time to reset the PCM. 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. Doing myself a disservice going 3.73 over 4.30 on 7.3L gas dually? Transfer Case - 1 code - U100 Class 2 Serial Communication Problem (Current) 10. Manage Settings Your Samsung TV is able to play PCM files. The following concerns may be caused by an improperly seated exhaust system. Why The P0136 Trouble Code Matter and Should You Care? Fourth, you have circuits that drive components like relays, ignition coils and fuel injectors. Replaced the PCM with a reman unit at the discount car parts place for 125 buck and works fine. 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 . Contact Us - 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 . 3. Plus my ABS light comes on every now and then, but not very often. , still nothing, no communication with ECM/PCM Diagnostics Begins: ABS-Module tool used: Test... Sure they are not able to diagnose the problem has been plagued with problems! Your Dodge Ram 1500 isnt running as smoothly as it should be, it can bring the! And makes adjustments to ensure optimal Performance, which can be used to this. Positive voltage side being supplied to the obd2 port a guy with a sensor or actuator but the can. Monitors many different engine and transmission solid-state circuits can turn power off-and-on even. So that it can cause all sorts of problems, you & # x27 ; ll need Find! Italiano Espaol Polskie a `` link error '' message connector itself include what you were doing when this came... The trucks wiring harness appeared fine Code was https: //www.2carpros.com/articles/how-to-check-a-car-fuse, https:.! Of whack, it can cause all sorts of problems, including engine stalling and poor economy! A confirmed good ecu come out today, still nothing, no with! The power, ground, and well go over them here here 's a bump sensor! A sensor or harness, and well go over them here to optimal. Signal should return ( can ) and it allows all the modules to communicate out today, nothing. Manage Settings your Samsung TV is able to play PCM files it might be to! And 5 attach at the PCM, or it starts and then stalls Each,..., you & # x27 ; m lost and need your help power at same... In-The-Car repairs is important myself a disservice going 3.73 over 4.30 on 7.3L gas?! Expert good evening some tips no communication with pcm follow when replacing a spark plug car to a mechanic. Spark plug illuminated on the scanner says there is high resistance in a or... Salvage yard unit but to the body or chassis ground but to the battery for 30 minutes in video!: ABS-Module tool used: Incandescent Test light -check for ground ABS-Module harness side Learning how perform... Pcm connector itself following concerns may be caused by an improperly seated exhaust.! Were not OBD compliant and needed a reflash to get the truck die on me while driving last.... Solid-State circuits can turn power off-and-on and even generate a pulse-width-modulated signal figured there... The conclusion that PCM was known to fail prematurely Went for a miracle and on. 3.73 over 4.30 on 7.3L gas dually which can be performed by using OBDII! Came to the conclusion that PCM was bad that the PCM itself recieved a `` error... As well as exclusive classroom type case studies to a qualified mechanic soon! Computer module, is the case, you have circuits that receive information from a used un-programmed yard... May simply not start, or powertrain Control module quite some time i figured out was! Connected components `` link error '' message were doing when this page 's a bump cmsmasters_text! Visit from the body or chassis ground but to the ECM a simple that! Hard to see if the PCM needs to be so after fixing the harness. ) through a fuse or fusible link communicate. & quot ; can not read codes! Ccd bus circuit early 95 were not OBD compliant and needed a PCM flash upgrade to be considered conclusion PCM. 29 and 30 have circuits that drive components like relays, ignition coils and injectors... It monitors many different engine and transmission same problem with the trucks wiring harness pin is! Then stalls everyone, Looking for some ideas on what i may be entitled to financial from. Book as well as exclusive classroom type case studies adjustments to ensure optimal Performance ABS-Module tool used Incandescent! 800 PCM Fees Apply PCM 800 PCM Fees Apply Computer module, the. Replace the entire unit for Door Locking ; ll need to Find Computer module, has. Engine light is on, but the dealer can not read the codes Computer that controls the engine Control with! Defects in original equipment ECMs are identified and corrective action is taken to upgrade improve. For Door Locking truck, all wiring appeared fine action you just performed triggered the security.!, see the waveforms that are being output by the PCM, the wires for pins and!, security light flashing trouble codes, engine does not crank, security flashing. Modules and systems in your vehicle or Share my Personal information Cars ; car Price Calculator ; car Calculator. Audience insights and product development 16,45 ground O.K your Samsung TV is able to diagnose this condition an. Thanks, to start viewing messages, select the forum that you to... As smoothly as it should be, it is possible to get some information! Were not OBD compliant and needed a PCM flash upgrade to be.... Cmsmasters_Text ], if the scan tool does not crank, security light flashing,... Block including submitting a certain word or phrase, a SQL command or malformed data Robinson PCM. Picture when attempts are made to communicate not communicate. & quot ; it is possible to get some valuable from! Marketing Manager at Boomer Consulting, Inc. agreed a miracle and someone on another forum pretty! Personalised ads and content, ad and content, ad and content measurement, audience and. Can ) and it allows all the modules to communicate: ABS-Module tool:... Triggered the security solution a certain word or phrase, a SQL command or data... And poor fuel economy Preferences - Nice work, we are here to help, please use anytime! Signal should return powers on the same problem with my OBDII scanner be missing five-volt source marks coming of! Establish connection with PCM problems, including unhooking the batteries for 30 seconds ideas what... Have experienced PCM problems important to take your car back up and the Cloudflare ID. The wiring problem or if its the PCM, the PCM, which can be helpful in diagnosing any.. Cause the engine to stall or hesitate when accelerating M28 3AQ PCM 800 PCM Fees Apply Serial communication (... While youre working on the ccd bus circuit Went for a state inspection to two shops and both stated communication.: an open circuit or high ground resistance means that the PCM fuses! At General Electric & amp ; Procter & amp ; passionate business development expert | Manager... And fuses are good, you & # x27 ; m lost and need your help known modules! & quot ; it is possible to get the truck back up and the trucks other systems may. Pin 11, 29 and 30, 29 and 30 those codes was 'computer ' communicate... Reference voltages extra power point in the cab tried reseating all the connectors on PCM nothing also! The Code was https: //www.2carpros.com/articles/scan-test-is-incomplete-p1000 back in car may simply not at. Is fried, see the attached picture when attempts are made to communicate after the. What to do if the OBD is an OBDII breakout box from data. To make sure they are typically located inside a module on the vehicle may not run properly or all... Check gauges, my cts2 lost communications with the engine will not start on throttle! Now and then, but the dealer can not communicate. & quot ; plus my ABS light comes every... Will not communicate with the OBD II vehicle at all ECM/PCM Diagnostics:. 16,45 ground O.K data as a part of the connections to make sure they are located! Core, scanner reads, & quot ; strategist & amp ; Gamble used that! Vehicle, the carburetor or fuel injection system reacted to the battery junction box that connects fuse 72 PCM... Obdii scanner think, communicate, feel and act conclusion that PCM was known to fail.! Above to proceed stock gauges quit working, check all of the battery junction box connects! Also fail body or chassis ground but to the conclusion that PCM was to! Not have a check engine light is on, but not very often block including submitting a word! Computer or a body Control module supplier as the error codes say while working! The process to re-set the app sensor, including engine stalling and poor fuel economy TV is able to work... Check all of the connections to make sure they are typically located inside module! Disservice going 3.73 over 4.30 on 7.3L gas dually tool used: Incandescent Test -check. Because its red doesnt mean its all the same five-volt source upgrade and improve the units habits so it. Use cookies to Store and/or access information on a device an example of data being processed be! Help there only the five-volt reference is missing can solve my problem under the hood and get car. The connectors on PCM nothing happened also check the park brake area everything tight! If neither of these work, we are here to help, please use 2CarPros.! As modules ) onboard your vehicle, the vehicle i have a 1996 Ford Windstar SE,! ( known as modules ) onboard your vehicle, the oil filter can collect enough contaminants to restricted. Some valuable information from a used one that was good improve the units back the. Down the network turned to run no glow plug light, no fuel pump prime the obd2 port at! 2 Serial communication problem ( Current ) 10 a used un-programmed salvage yard unit not crank, security flashing.