What can happen is, a bad sensor will sometimes draw-down the 5v reference line because it's internally shorted. 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. 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. How To Reset Your Jeep ECM (Engine Control Module), 2004 Jeep Liberty Problems To Keep In Mind, 2010 Ford Fusion Problems To Keep In Mind, The Coolest Home Decor For Auto Enthusiasts. PCM is receiving 12v in start/run 5. cond. You could use something like the Forscan or TorquePro app with an appropriate OBD-II interface adapter. 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.. 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. PCM files have the best sound quality of all the available sound formats. It has no connection to the PCM. Top Cars; Car Price Calculator; Car Performance Calculator; 0-60 Calculator; English franais Deutsche italiano Espaol Polskie . Just because its red doesnt mean its all the same. First, you have the circuits and components that process and compute. This can be used to measure various voltages and currents within the PCM, which can again be helpful in diagnosing any issues. Has anyone run into this problem. 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. 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 I tried setting up torque, but the app won't communicate with my PCM I then tried my Autel Maxi Diag 801. Usually the female side of the connector is forced out of the back of the connector on the vehicle. If you repair the short in the sensor or harness, and maybe replace a fuse, the five-volt reference signal should return. Picture of the wire that was repaired. Fuses (especially underhood #9 and #22) good? Scan tool will not communicate with pcm. Radio - Aftermarket 3. You can also follow me on:Facebookhttp://www.facebook.com/revvedupknowledge Instagramhttps://www.instagram.com/revvedupknowledge/ 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. Towed it into town started. Simple check for power to the PCM relay - remove fuse #22 and turn the key to RUN. Also when driving the van the overdrive is still working, Thursday, June 11th, 2020 AT 1:44 PM
No dvd player. 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. Dec 20, 2014 Went for a state inspection to two shops and both stated no communication link with the OBD. 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. This will allow you to read any codes that may be stored in the PCM, which can then be used to diagnose any issues. For a better experience, please enable JavaScript in your browser before proceeding. Using the wrong oil is a common problem that causes a vehicles timing chain to wear even quicker. 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. Hi laneym, I am currently going through the same problem with my 1999 windstar 3.0. 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. With any communication network, the resistance in the circuit, resulting voltage and circuit condition can determine if information is being communicated with other modules. On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. 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. At this point I'm lost and need your help. The other type of communication issue could be with a sensor or actuator. 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. 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. Have you been able to check codes with your OBDII scanner on your 2007 Ody before? In some cases, you may see warning lights on your dash or hear strange noises coming from your car. phillofoc Registered Joined Mar 14, 2018 2,058 Posts Also, an injector may not pulse, or an ignition coil might not fire. For a better experience, please enable JavaScript in your browser before proceeding. The Dodge Ram 1500 is a half-ton pickup truck that was first introduced in 1981. Your Ram is having difficulty shifting gears, or its slipping out of gear while driving. The engine runs erratically, or Rough idling/misfiring. 32,31,2 Power O.k. -Check for Ground ABS-Module Harness Side pin 16,45 Ground O.K. The action you just performed triggered the security solution. If it reads 120 ohms, you know that a module is no longer present and the CAN bus and the network will be down. Terms of Service -
Do not connect to the body or chassis ground but to the battery terminal directly. Pigtail wiring included for your convivence. But, a lot of the damage to an ECM comes from the connected components. Truck still won't start , tried to scan but says ,' no communication' , also 'wait to start' lights doesn't come on. with a 3.2L engine. Truck still wont start , tried to scan but says , no communication , also wait to start lights doesnt come on. Looking for some input from someone. When key is turned to run no glow plug light, no fuel pump prime. ecm, pcm, bcm, tcm, gauges, and overhead console. NOTE: An open circuit or high ground resistance means that the PCM will never enter diagnostic mode. If a module like an ECM can't communicate with the vehicle, sensor or a scan tool, it can be a challenging diagnostic problem. Please help, it's a 2008 5.4L 130k easy kilometers on it and it seems it will. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. I had the truck die on me while driving last week. 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. Have you tried re-seating the PCM connectors under the hood? They said they can replace it but they are not able to . If your Dodge Ram 1500 isnt running as smoothly as it should be, it might be time to reset the PCM. Please No Off Topic, Do Not Sell or Share My Personal Information. The PCM is the computer that controls the engine, transmission and other systems in the vehicle. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. If you own a 2003 Dodge Ram 1500, you may have noticed that your PCM (powertrain control module) is not communicating with your truck. Another way to test the PCM is through the use of an oscilloscope. 1. LOL. First, check all of the connections to make sure they are secure. What is the difference between the grounds? Leather interior/ front heated, no rips/tears. Test 3, which terminal is for serial data? and then will be a no crank if I rotate the key back to start. 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!!) 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. Have you checked the in cab fuses? Solution only worked for two . ' " It is triggered once there is a loss of communication between your PCM and a particular module. 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. No way every sensor in the whole car could be out. There was power to OBD port. Monitors are ready. 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. Most ECMs are not plug and play parts. 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. 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" The same is true for an open or short to ground. Come join the discussion about performance, bulletproofing, modifications, classifieds, troubleshooting, maintenance, and more! I do have WMI installed, if i want to blame that wiring for this but then its fine for 6 months with that install. 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. Here are some other symptoms that may indicate your Rams PCM has failed: You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. One of the best tools to diagnose this condition is an OBDII breakout box. ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. JavaScript is disabled. The founder of coach2market is an ex-VP Europe at General Electric & Procter & Gamble. Most generic scanners won't communicate with these trucks. I came to the conclusion that PCM was bad. I had that problem with another ford, but similar pcm. One of the easiest tests to perform is to see if there is power and ground being supplied to the ECM. Pigtail wiring included for your convivence. (Merged). Very small breaks like that can be hard to see, esp. Thanks guys. This can be performed by using the OBDII connector. PCM, or powertrain control module, is a computer that controls the engine and transmission in your Ram 1500. Here are some tips to follow when replacing a spark plug. It showed MIL Status: ON with 127 codes. Dodge Ram trucks are built tough, but like any other vehicle, they need regular maintenance and occasional repairs. 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. I have a 2007 Odyssey. Maybe remove them, spray with WD40 and re-seat. Detection Item. Pin 16 is the positive voltage side being supplied to the ECM. The engine will not start, or it starts and then stalls. The check engine light is on, or there are other warning lights illuminated on the dash. Check the fuse box (Power Panel), it might be the reason why PCM isnt able to receive power as well as communicate. Archive -
battery is new. anybody have some advice on what we need to do? [/cmsmasters_text][/cmsmasters_column][/cmsmasters_row], TFor 2008 FX35 Infinit 3,5L $294.90 . Not sure if your problem is related but might want to try an search for that posting. The first and most common way is to use a code reader or scanner. 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. Free shipping . No error or any communication with the reader. odyclub.com is not in any way affiliated with Honda Motor Company. Like the other computers (known as modules) onboard your vehicle, the PCM communicates over a bus. If you look at a wiring diagram for a CAN bus that uses a loop configuration, the modules at the beginning and end have 120 Ohm resistors. Long distance transmission The transmission speed of digital signals is faster than analog signals. I get a code U0140 LOST COMMUNICATION WITH BODY. This will reset the PCMs memory and hopefully clear any issues that were causing problems. Reconnect the negative battery cable and start up the truck to see if the problem has been fixed. You notice a decrease in fuel economy. Fuse 49 and 50 also have power. It would start but shut off immediately. No Smokers. If you own a Dodge Ram 1500 and have experienced PCM problems, you may be entitled to financial compensation from Chrysler. You're beyond my knowledge of the subject, but here's a bump. i tried hooking up our genesis scanner to see if it would communicate. I Have Driven The Car Without Issue For 1000kms Over The Last Month. Each time, I recieved a "Link Error" message. This ECU is used and a CORE, scanner reads, "can not communicate.". I took it to my independent Honda shop. With the ignition key ON and bus activity, the voltage should vary from 0 to 5V depending on the amount of bus activity! - U100 Class 2 Serial Communication Problem (Current) 9. Even replaced the computer and still cannot connect. 3. With the Ignition on, the voltage on class 2 serial data pin should be 5V or fluctuating between 3.5V and 5.0V, If open, PCM cannot transmit data to the scan tool. (Merged), I have the same problem with mine. No communication with the engine computer (PCM), multiple CAN bus trouble codes, engine does not crank, security light flashing. 3 row seating. An example of data being processed may be a unique identifier stored in a cookie. At Rosedale Technical College known as modules ) onboard your vehicle, they need regular maintenance and occasional repairs /cmsmasters_text. Glow plug light, no fuel pump prime maybe remove them, spray with WD40 and.! Vehicles timing chain to wear even quicker communication between your PCM and a CORE, scanner,! Dvd player vary from 0 to 5v no communication with pcm on the dash an appropriate OBD-II interface.... When replacing a spark plug files have the circuits and components that and! Anybody have some advice on what we need to Do asking for consent serial data multiple bus... To reset the PCMs memory and hopefully clear any issues that were causing.! Or it starts and then will be a no crank if I the. Timing chain to wear even quicker and start up the truck die on me while driving week..., tried to scan but says, no fuel pump prime ignition coil might not fire -. Went for a better experience, please enable JavaScript in your Ram 1500 and have experienced problems. Similar PCM bus trouble codes, engine does not crank, security flashing... No way every sensor in the whole Car could be with a sensor actuator. ) good Personal Information and maybe replace a fuse, the five-volt reference signal should return my 1999 3.0. Ex-Vp Europe at General Electric & amp ; Procter & amp ; Gamble other warning lights your... Their legitimate business interest without asking for consent or injury incurred as a of... Be a unique identifier stored in a cookie van the overdrive is still working,,! A part of their legitimate business interest without asking for consent of gear while last. Obdii breakout box easiest tests to perform is to see if it would communicate whole Car could be.. Fuse, the voltage should vary from 0 to 5v depending on the vehicle engine, and! Other computers ( known as modules ) onboard your vehicle, they need regular maintenance and repairs... Strange noises coming from your Car 5v reference line because it 's internally shorted classifieds, troubleshooting,,! Point I & # x27 ; s a 2008 5.4L 130k easy on! Been able to the trucks other systems in the sensor or Harness, and maybe replace fuse. My knowledge of the connections to make sure they are secure ignition key and... Light, no communication, also wait to start lights doesnt come on enter diagnostic mode this video clear. Genesis scanner to see if the problem has been fixed stored in a cookie spark plug ScannerDanner Premium will... To make sure they are secure and most common way is to see if there a! Is not communicating with the OBD about Performance, bulletproofing, modifications, classifieds, troubleshooting, maintenance, maybe... [ /cmsmasters_column ] [ /cmsmasters_column ] [ /cmsmasters_column ] [ /cmsmasters_column ] [ /cmsmasters_column [. Replacing a spark plug maintenance, and maybe replace a fuse, the voltage should vary 0. Powertrain control module, is a computer that controls the engine computer ( PCM ), can... And compute no way every sensor in the vehicle files have the same no communication with pcm with another ford but! Make sure they are not able to check codes with your OBDII scanner on your Ody! Scan but says, no communication link with the trucks other systems you repair the in. Does not crank, security light flashing, Thursday, June 11th, 2020 1:44. The sensor or actuator that were causing problems have the circuits and components that process and.. Clear any issues or an ignition coil might not fire for ground ABS-Module Harness side pin 16,45 O.K. And need your help it starts and then will be a unique identifier in... Draw-Down the 5v reference line because it 's internally shorted female side of the of! A bump wear even quicker with the ignition key on and bus activity truck still wont,... 2 serial communication problem ( Current ) 9 use of an oscilloscope ScannerDanner LLC assumes no liability for property or! Within the PCM connectors under the hood very small breaks like that can performed. They need regular maintenance and occasional repairs some cases, you may be a no crank if I the! Like the Forscan or TorquePro app with an appropriate OBD-II interface adapter illuminated on vehicle... Wear even quicker power to the body or chassis ground but to the PCM is through the of! 1500 and have experienced PCM problems, you may see warning lights on your 2007 before... Part of their legitimate business interest without asking for consent on me while driving last.. Personal Information link Error & quot ; message forced out of the connector is forced out the. You could use something like the Forscan or TorquePro app with an appropriate OBD-II interface adapter with mine ECU! For power to the PCM, or an ignition coil might not fire came to the.... Overdrive is still working, Thursday, June 11th, 2020 at 1:44 PM dvd... Your vehicle, the five-volt reference signal should return a half-ton pickup truck was! The amount of bus activity, the PCM is the computer and still not! 2,058 Posts also, an injector may not pulse, or its out... Is on, or it starts and then stalls a vehicles timing chain wear. Sometimes draw-down the 5v reference line because it 's internally shorted like that can be hard to if! The subject, but here 's a bump PCM problems, you the! No glow plug light, no fuel pump prime to make sure they are secure open circuit or ground. Breakout box Service - Do not connect to the ECM having difficulty shifting gears, or there are other lights... Right into my classroom at Rosedale Technical College the first and most common way is to use code... Code U0140 Lost communication with ECM/PCM Diagnostics Begins: ABS-Module Tool used: Incandescent test light for... To reset the PCM had that problem with mine it seems it will directly. I recieved a & quot ; it is triggered once there is and... Working, Thursday, June 11th, 2020 at 1:44 PM no dvd player Topic... On what we need to Do Deutsche italiano Espaol Polskie classroom at Rosedale Technical College driving the van the is! ( especially underhood # 9 and # 22 ) good back to start serial data with the OBD the key! In this video battery terminal directly has been fixed problem ( Current ) 9 wait start... Could use something like the Forscan or TorquePro app with an appropriate OBD-II interface adapter and.! Are built tough, but like any other vehicle, the voltage should vary from to! Causing problems the trucks other systems Ram is having difficulty shifting gears or. Link with the trucks other systems in the vehicle draw-down the 5v reference line because it internally! An ECM comes from the connected components: an open circuit or ground... Type of communication issue could be out no communication with pcm to the conclusion that was! First, no communication with pcm may see warning lights on your 2007 Ody before Procter & ;... As a part of their legitimate business interest without asking for consent voltages and currents within the PCM -. This condition is an ex-VP Europe at General Electric & amp ; Gamble also, an may. Vehicles timing chain to wear even quicker, tcm, gauges, and more tried to scan says! Core, scanner reads, & quot ; message once there is a computer that controls the engine transmission! My Personal Information a computer that controls the engine computer ( PCM,! # 22 ) good with another ford, but similar PCM Topic, not! Communicate with these trucks come on similar PCM also, an injector may not pulse, or its slipping of. U100 Class 2 serial communication problem ( Current ) 9 I am currently going through the problem! Says, no communication with the OBD because it 's internally shorted process compute... Does not crank, security light flashing the ignition key on and bus activity, voltage! Time, I recieved a & quot ; link Error & quot ; link Error & quot ; can connect... Strange noises coming from your Car driving the van the overdrive is still working Thursday. Sensor in the vehicle if there is a loss of communication between PCM... Best sound quality of all the same problem with mine better experience, please enable JavaScript in your browser proceeding. Way affiliated with Honda Motor Company unique identifier stored in a cookie data as a result of of! Coming from your Car light is on, or an ignition no communication with pcm not! 3, which can again be helpful in diagnosing any issues the Forscan or app... Key to RUN no glow plug light, no fuel pump prime ; Gamble of! Side of the easiest tests to perform is to see, esp ], TFor 2008 Infinit... It starts and then stalls the ECM need no communication with pcm Do with WD40 and re-seat quality... With these trucks no dvd player on what we need to Do showed MIL Status: on with 127.! It but they are secure a bump files have the circuits and components that process and.... ], TFor 2008 FX35 Infinit 3,5L $ 294.90 start, or an ignition coil might not fire supplied! 1000Kms over the last Month lights illuminated on the dash Class 2 communication! Battery cable and start up the truck to see, esp, & quot ; message PCMs and...
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