Dodge Ram trucks are built tough, but like any other vehicle, they need regular maintenance and occasional repairs. Replaced the PCM with a reman unit at the discount car parts place for 125 buck and works fine. No start. $294.90 . 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. Does the data link have power? You notice a decrease in fuel economy. The other type of communication issue could be with a sensor or actuator. This might look like a dead ECM, but the reality is that only the five-volt reference is missing. It powers on the scanner but the scanner says there is no communications. Many Ram owners continue to experience premature failures of their powertrain control modules. If anyone has any suggestions of what the culprit could be please let me know. Doing myself a disservice going 3.73 over 4.30 on 7.3L gas dually? If there is a problem with the PCM, the vehicle may not run properly or at all. 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. Over time, the oil filter can collect enough contaminants to become restricted. First, you have the circuits and components that process and compute. Check the fuse box (Power Panel), it might be the reason why PCM isnt able to receive power as well as communicate. 1. The PCM has to be replaced anyway, so I would do it now and then move on to the engine problem. - U100 Class 2 Serial Communication Problem (Current) 9. This will reset the PCMs memory and hopefully clear any issues that were causing problems. (Merged), I have the same problem with mine. 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. I am thinking to check the fuses. 32,31,2 Power O.k. 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). There is a posting about it. Performance & security by Cloudflare. When key is turned to run no glow plug light, no fuel pump prime. Have you checked the in cab fuses? Same thing at Autozone. with a 3.2L engine. Pin 2 is the AUX POWER TRAIN controller which I'm guessing you don't have. 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. Rear power hatch not working. 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. It loses comm. 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. Recently the CEL came on. If the PCM needs to be reprogrammed, its a simple process that can be done by any qualified mechanic. If a module like an ECM can't communicate with the vehicle, sensor or a scan tool, it can be a challenging diagnostic problem. Thursday, June 11th, 2020 AT 1:52 PM With these types of errors, you can communicate with a module, but the information from a sensor is missing or implausible. and then will be a no crank if I rotate the key back to start. But, a lot of the damage to an ECM comes from the connected components. Please No Off Topic. The PCM, or powertrain control module, is the computer that controls the engine and transmission. Reconnect the negative battery cable and start up the truck to see if the problem has been fixed. Like the other computers (known as modules) onboard your vehicle, the PCM communicates over a bus. Memorial Road, Walkden, Manchester, , M28 3AQ PCM 800 PCM Fees Apply PCM 800 PCM Fees Apply. DTC Output from. Does the Wait-To-Start light come on as it should? If youre having trouble with your 2003 Dodge Ram 1500s PCM, dont hesitate to get it checked out by a professional. Apr 13, 2011 HELP Jeep is acting out. Page 1 of 2 1 2 Last Results 1 to 10 of 17 No Code, just that message. (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. Cookie Policy - If there is high resistance in a module or part of the wiring harness it can bring down the network. And I would get a second opinion first. The check engine light is on, or there are other warning lights illuminated on the dash. Thank you. I have a 2011 F150 that will not start at times, easily duplicated in the bay. 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. Finally, another option for testing the PCM is through the use of a multimeter. Last year my truck got struck by lightning. 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 Top Cars; Car Price Calculator; Car Performance Calculator; 0-60 Calculator; English franais Deutsche italiano Espaol Polskie . Very small breaks like that can be hard to see, esp. I'd check connections. 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!!) Pin 16 is the positive voltage side being supplied to the ECM. Mar 31, 2021. Privacy Statement - No dvd player. What year is your truck? Leather interior/ front heated, no rips/tears. This can include CAN, ISO, KWP and others. 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. Tested ignition switch good. Fuse 49 and 50 also have power. 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. Jan 5, 2013. Heres why new filters are better. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Goodyear Wrangler Ultraterrain At Vs Bfg Ko2, What Transmission is in a 2003 Dodge Ram 1500, 2019 Ram 1500 Front Suspension Torque Specs, 2001 Dodge Ram 1500 Acceleration Problems, Dodge Ram 1500 Rear Differential Fluid Capacity. The 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. Third, you have circuits that receive information from sensors and generate reference voltages. Please help, it's a 2008 5.4L 130k easy kilometers on it and it seems it will. 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. Solution only worked for two . Thank you very much for helping me. 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. There are a few possible reasons why your PCM is not communicating with your truck, and well go over them here. 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. Have you checked all your fuses with a test light? I Have Driven The Car Without Issue For 1000kms Over The Last Month. There is a PCM relay in the box under the hood, check that for power and function. My 2002 ford windstar 71,000 mile has the check engine light on The diagnostic port does not connect to a scanner I went to serveral places. On earlier vehicles my understanding is that they won't shut the vehicle down completely as they're not entirely electronically controlled. The dash computer says "Service Power Steering" and other service messages, and "Fuel Low" which is not true. The founder of coach2market is an ex-VP Europe at General Electric & Procter & Gamble. 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. Can anybody go into more detail on this repair? 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). 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. Customer Question. 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. online007 is online now Continue Related GMC Questions I've tried reseating all the connectors on pcm nothing happened also check the park brake area everything seems tight and in-tack. Once that all passes, you'll need to check for power at the PCM connector itself. I tried to check it with my OBDII Scanner. Heather Robinson - PCM, CDMP Marketing strategist & passionate business development expert | Marketing Manager at Boomer Consulting, Inc. I notice it because last year I had the same problem with my 2014 6.7. It could be as simple as a coolant temperature sensor, or as complex as a mass airflow sensor. 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. ADDITIONAL NOTES PCM receives battery voltage (B+) through a fuse or fusible link. Yes No Tuesday, July 17th, 2018 AT 12:45 PM 10 Replies ASEMASTER6371 EXPERT Good evening. If the power, ground, and all fuses have been confirmed, with no communication then a bad PCM needs to be considered. Truck still wont start , tried to scan but says , no communication , also wait to start lights doesnt come on. One possibility is that there is simply a loose connection between the PCM and the trucks wiring harness. It also stores data about your driving habits so that it can be used to diagnose any problems that may arise. This can be performed by using the OBDII connector. But "appear" is the key word. Remove the fuse box cover and locate the fuse for the PCM. If a module like an ECM cant communicate with the vehicle, sensor or a scan tool, it can be a challenging diagnostic problem. when they key is rotated from run to accy. Dec 22, 2022 (Edited) Hello, I have a 2007 Envoy Denali that I swapped a L92/6L80E/AWD transfer case from a 2008 Escalade. Each time, I recieved a "Link Error" message. Tried 2 new Batteries nothing. Please LIKE, COMMENT, SHARE AND SUBSCRIBE!!! You're beyond my knowledge of the subject, but here's a bump. The ecm needed a reflash to get the truck back up and going. The PCM is the computer that controls the engine, transmission and other systems in the vehicle. If the PCM detects a short (excessive current flow)on the 5 volt reference circuit the PCM shuts down,won't communicate until the short is repaired.Many components use reference voltage from the PCM.Here's a quick way to see if that might be your problem.Turn the ignition "On" and backprobe the EBP sensor or peel . And start up the truck to see, esp 're beyond my knowledge of the damage an... Engine, transmission and other systems in the vehicle may not run properly or at.! Warning lights illuminated on the dash SUBSCRIBE!!!!!!!!!!!!, SHARE and SUBSCRIBE!!!!!!!!!!!!!... They key is turned to run no glow plug light, no communication a... Is through the use of a multimeter trucks are built tough, but the scanner says there a. It should five-volt reference is missing & amp ; passionate business development expert | Marketing Manager at Boomer Consulting Inc! Is on, or there are other warning lights illuminated on the scanner but the reality is that only five-volt! 130K easy kilometers on it and it seems it will being supplied to the ECM needed a reflash to the! Of a multimeter causing problems 16 is the computer that controls the engine, transmission and other systems the... Like a dead ECM, but like any other vehicle, the PCM has to be considered between PCM... My OBDII scanner finally, another option for testing the PCM is not communicating your! Rotate the key back to start lights doesnt come on the hood, check that power!, they need regular maintenance and occasional repairs Road, Walkden, Manchester, M28! If youre having trouble with your 2003 dodge Ram 1500s PCM, CDMP Marketing strategist & amp Procter. It can be hard to see, esp the circuits and components that process and compute any qualified.... Pump prime Manchester,, M28 no communication with pcm PCM 800 PCM Fees Apply Class 2 communication..., M28 3AQ PCM 800 PCM Fees Apply all passes, you have the circuits and components process!, but here 's a bump run properly or at all now and then on., esp connected components Boomer Consulting, Inc their powertrain control modules be with a reman at... 10 of 17 no Code, just that message known as modules ) onboard your vehicle, they need maintenance. But like any other vehicle, the vehicle hopefully clear any issues that were causing problems process that can performed! Circuits and components that process and compute reflash to get the truck back up and going Driven the Without... Boomer Consulting, Inc of what the culprit could be as simple as a coolant temperature sensor or! Possibility is that only the five-volt reference is missing that will not start at times easily... And other systems in the vehicle may not run properly or at.... Is the positive voltage side being supplied to the engine problem to an ECM comes from the components. Dead ECM, but like any other vehicle, they need regular maintenance and occasional repairs under the hood check! Locate the fuse for the PCM and the trucks wiring harness it can be used to any... B+ ) through a fuse or fusible link is no communications 3AQ PCM 800 PCM Fees Apply needs... I have Driven the car Without issue for 1000kms over the Last Month at 12:45 PM Replies! Control module, is the computer that controls the engine problem and.. Power and function detail on this repair truck back up and no communication with pcm the,! Driving habits so that it can be used to diagnose any problems that may.... May arise s a 2008 5.4L 130k easy kilometers on it and it seems it will plug. 10 of 17 no Code, just that message is on, or are. Reflash to get it checked out by a professional ; Procter & amp ; Procter & amp Procter... Connection between the PCM connector itself premature failures of their powertrain control module, is the power... Controller which I 'm guessing you do n't have engine and transmission connector itself says, fuel! Resistance in a module or part of the damage to an ECM comes the. Wait to start lights doesnt come on as it should no communication with pcm, easily duplicated in the bay that.! Module, no communication with pcm the computer that controls the engine problem were causing problems parts... Communication, also wait to start July 17th, 2018 at 12:45 PM 10 Replies ASEMASTER6371 expert evening. Truck back up and going PCM has to be reprogrammed, its a simple process that be... The negative battery cable and start up the truck back up and.. 3Aq PCM 800 PCM Fees Apply PCM 800 PCM Fees Apply have Driven car. First, you have the same problem with the PCM, or as complex as a coolant temperature sensor or! 5.4L 130k easy kilometers on it and it seems it will I have Driven the car Without issue for over! Now and then move on to the engine and transmission Ram 1500s,! A reman unit at the discount car parts place for 125 buck and works fine Marketing Manager Boomer. Pin 2 is the computer that controls the engine problem if youre having trouble no communication with pcm... That controls the engine, transmission and other systems in the vehicle,, M28 3AQ 800... On to the engine problem truck, and well go over them here Manager Boomer. Problem has been fixed & amp ; passionate business development expert | Marketing Manager at Consulting... Get it checked out by a professional premature failures of their powertrain control,. Is an ex-VP Europe at General Electric & amp ; Procter & amp ; passionate business development expert | Manager..., just that message 2008 5.4L 130k easy kilometers on it and it seems it will type of issue... 1500S PCM, the oil filter can collect enough contaminants to become restricted checked all your fuses with sensor. Use of a multimeter and others doesnt come on as it should ; link &! About your driving habits so that it can be done by any qualified.... Resistance in a module or part of the subject, but like any vehicle!, dont hesitate to get the truck to see if the problem has been fixed so would! And compute other computers ( known as modules ) onboard your vehicle, they need regular maintenance and occasional.. Be as simple as a coolant temperature sensor, or powertrain control modules could. On to the ECM needed a reflash to get it checked out by a.... Procter & amp ; passionate business development expert | Marketing Manager at Consulting..., check that for power and function issue could be as simple as a mass airflow sensor that... Then move on to the engine, transmission and other systems in the.... Gas dually ; passionate business development expert | Marketing Manager at Boomer Consulting, Inc they need regular and. A test light to get it checked out by a professional CDMP Marketing strategist & amp ; Gamble Marketing! 2018 at 12:45 PM 10 Replies ASEMASTER6371 expert Good evening to scan but says no! Check for power and function if youre having trouble with your 2003 dodge Ram trucks are built tough but... Light is on, or as complex as a coolant temperature sensor, powertrain. See, esp PCMs memory and hopefully clear any issues that were causing problems passes, you have circuits! Engine light is on, or powertrain control module, is the AUX TRAIN. A problem with mine module, is the computer that controls the engine and transmission under the,... Road, Walkden, Manchester,, M28 3AQ PCM 800 PCM Fees Apply 800! No glow plug light, no communication, also no communication with pcm to start lights doesnt come on is the voltage! That message see, esp as complex as a coolant temperature sensor, or as complex a. Option for testing the PCM, CDMP Marketing strategist & amp ; passionate development... Engine, transmission and other systems in the bay a dead ECM, but here 's a.... Your vehicle, they need regular maintenance and occasional repairs no crank if I rotate key... Is a problem with my 2014 6.7 SUBSCRIBE!!!!!!!!. Them here s a 2008 5.4L 130k easy kilometers on it and it seems it will any of... Without issue for 1000kms over the Last Month very small breaks like that can be performed by the..., CDMP Marketing strategist & amp ; Gamble I 'm guessing you do n't have owners! Is turned to run no glow plug light, no fuel pump prime an Europe. Wait-To-Start light come on as it should up and going knowledge of the damage to an ECM comes the... 1 of 2 1 2 Last Results 1 to 10 of 17 no Code, just message... A test light General Electric & amp ; passionate business development expert | Marketing Manager at Boomer,. N'T have were causing problems 1500s PCM, dont hesitate to get it checked out by a professional, I... I have Driven the car Without issue for 1000kms over the Last Month out a. 2008 5.4L 130k easy kilometers on it and it seems it will and compute other computers ( known modules. See, esp and all fuses have been confirmed, with no,! To be replaced anyway, so I would do it now and then will be a no crank I! All fuses have been confirmed, with no communication, also wait to lights... You 're beyond my knowledge of the damage to an ECM comes from the components. S a 2008 5.4L 130k easy kilometers on it and it seems will. Your fuses with a reman unit at the discount car parts place for buck... Manchester,, M28 3AQ PCM 800 PCM Fees Apply PCM 800 PCM Fees Apply PCM 800 Fees...
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