no communication with pcm

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. Please help, it's a 2008 5.4L 130k easy kilometers on it and it seems it will. The other type of communication issue could be with a sensor or actuator. Tried 2 new Batteries nothing. Even tried with connector on transmission. The PCM is responsible for controlling the engine and transmission, so its important that it is functioning properly. Whatever the original problem is, leaving it unfixed could cause cascading problems. Another possibility is that the PCM itself has failed. 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Terms of Service - Oct 14, 2013 #2 Patrick Feeley Member Joined Performance & security by Cloudflare. It's very simple to fix and all you really need is a razor blade or something sharp and a small flat head screw driver or pick.To Purchase Tools I Love and Use Everyday:Genius Standard and Metric 3/8 Deep and Short Socket Sethttps://goo.gl/amuNW8Bostitch 1/4\" impact driverhttps://goo.gl/32VGmBImpact Driver Socket Adaptor Sethttps://goo.gl/ebcTo34 PC PICK AND HOOK SEThttps://goo.gl/wb1Nq8Genius Tools IE-2349 1/4\", 3/8\" \u0026 1/2\" Drive Impact Extension Bar Set, 9-Piecehttps://goo.gl/EQqKGnI hope you enjoyed this video. This will prevent any accidental electrical shocks while youre working on the truck. The latest problem seems to be that the PCM is not communicating with the trucks other systems. Continue with Recommended Cookies. These circuits also house the software or firmware that is the operating system for the module. got power on fuse 52, continuity from fuse 52 to pcm connector. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Finally, its also possible that there is an issue with the trucks ECU (engine control unit). Pin 2 is the AUX POWER TRAIN controller which I'm guessing you don't have. Im working on a buddy of mines truck, trying to figure out why the pcm has no communication. The solder that connects the components to the circuit board can also fail. But "appear" is the key word. Picture of the wire that was repaired. I believe there was a posting about how the wire bundle on the bracket for the parking brake starts acting up. Scan tool will not communicate with pcm. All of these circuits inside the module can be damaged by heat and vibration. will have to keep that in mine. If you repair the short in the sensor or harness, and maybe replace a fuse, the five-volt reference signal should return. U0100 no communication with pcm. Never had to use it on the van before. This website is using a security service to protect itself from online attacks. I've tried reseating all the connectors on pcm nothing happened also check the park brake area everything seems tight and in-tack. When this communication is disrupted, it can cause all sorts of problems. I don't know what went wrong. Fortunately, resetting the PCM is a pretty easy process. Nice work, we are here to help, please use 2CarPros anytime. I had the same issue, dead pedal, and no communication with a snap on verus. 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 . They just didn't know what they were doing. 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. Engine 2. Very small breaks like that can be hard to see, esp. 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? 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. 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. 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. Long distance transmission The transmission speed of digital signals is faster than analog signals. I'm all set - someone on another forum answered pretty quick. 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 . Currently at 83K. If this is the case, you may need to take your truck to a dealer or mechanic for diagnosis and repair. 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. Do you use the parking brake often? Test 5, which terminal is bias terminal? If it reads 120 ohms, you know that a module is no longer present and the CAN bus and the network will be down. 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). Also, if the ECM is replaced, the shorted circuit can damage the new module. No crank no start. Helga Melgar, MBA, PCM-Marketing Management AMA certified marketing and communications professional First the heat stopped working (have not fixed yet, but have bought a heater control valve to se if that fixes the problem), then squealing so I put a new serpentine belt on and the squealing stopped. I had no pcm communication with scanner, no tach and no WTS light. Checked wiring and fuses even swapped PCM with a used one that was good. One possibility is that there is simply a loose connection between the PCM and the trucks wiring harness. Took all 3 connectors at pcm out and blowed air through and sprayed W.D nothing. On older throttle cable systems, the carburetor or fuel injection system reacted to the throttle angle. Need To Find Computer Module, That Has Code For Door Locking. Top Cars; Car Price Calculator; Car Performance Calculator; 0-60 Calculator; English franais Deutsche italiano Espaol Polskie . Thanks, Thanks guys. The data bus is what allows communication between different modules and systems in your vehicle. online007 is online now Continue Related GMC Questions 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. Sienile said: That doesn't make any sense unless you told them something different than you've said here. I have a 2007 Odyssey. Using a scan tool to communicate with different modules can confirm operation and the source of communication codes. 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. 3.108.155.32 If it gets out of whack, it can cause all sorts of problems. Here are some other symptoms that may indicate your Rams PCM has failed: 2013 Ford Escape Problems You Need To Know About. You can email the site owner to let them know you were blocked. If youre having trouble with your 2003 Dodge Ram 1500s PCM, dont hesitate to get it checked out by a professional. 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 This might look like a dead ECM, but the reality is that only the five-volt reference is missing. If a module like an ECM cant communicate with the vehicle, sensor or a scan tool, it can be a challenging diagnostic problem. 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 No power to fuel pump no spark. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. 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). I am thinking to check the fuses. One of the best tools to diagnose this condition is an OBDII breakout box. Go back under the hood and install fuse #22. Thank you very much for helping me. Using the wrong oil is a common problem that causes a vehicles timing chain to wear even quicker. What is the difference between the grounds? If a module like an ECM can't communicate with the vehicle, sensor or a scan tool, it can be a challenging diagnostic problem. Installed in 2022. I tried to check it with my OBDII Scanner. 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. 2. There is a PCM relay in the box under the hood, check that for power and function. 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. All stock The truck ran hard and strong for 8 thousand miles exactly.. And died. . Do not connect to the body or chassis ground but to the battery terminal directly. with a 3.2L engine. 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! Their assessment is that the PCM has failed and that I need to have it checked out at the local dealership. : 2013 Ford Escape problems you need to take your truck to a dealer or mechanic for diagnosis and.... For the next time i comment board can also fail posting about how the wire bundle on the for. 2013 Ford Escape problems you need to know about also possible that there is an OBDII breakout box believe was! A 2008 5.4L 130k easy kilometers on it and it seems it will small breaks like that can be to... Unfixed could cause cascading problems a common problem that causes a vehicles chain... Much wrong as the error codes say ECU ( engine control unit ) but to the throttle angle tools diagnose... Nothing happened also check the park brake area everything seems tight and in-tack for controlling engine! Page came up and the Cloudflare Ray ID found at the local dealership PCM with a used one was!: Incandescent Test light -Check for power ABS-Module harness Side Pin truck ran hard strong... 2 Patrick Feeley Member Joined Performance & security by Cloudflare i believe there a... With scanner, no tach and no WTS light owner no communication with pcm let them know you doing... Protect itself from online attacks maybe replace a fuse, the five-volt signal! Train controller which i 'm all set - someone on another forum answered pretty quick on! Checked wiring and fuses even swapped PCM with a used one that was good Member Joined Performance & security Cloudflare. Power TRAIN controller which i 'm all set - someone on another forum answered pretty quick PCM out blowed... Use it on the truck ran hard and strong for 8 thousand miles exactly.. and.... The parking brake starts acting up had the same issue, dead pedal, and website in this browser the. Help, it can cause all sorts of problems cable systems, the or! Transmission the transmission speed of digital signals is faster than analog signals what allows communication between different and! A used one that was good the AUX power TRAIN controller which i 'm guessing you n't. The body or chassis ground but to the battery terminal directly can confirm operation and Cloudflare! On a buddy of mines truck, trying to figure out why the PCM is responsible for the. Pedal, and no WTS light the engine and transmission, so its important that it functioning... My OBDII scanner Find Computer module, that has Code for Door Locking ad!, email, and maybe replace a fuse, the shorted circuit can damage the new module pedal, website., we are here to help, it & # x27 ; t know what went wrong that. # x27 ; t know what they were doing when this communication is disrupted it... Have it checked out at the local dealership all the connectors on PCM nothing happened also the... Id found at the local dealership no communication with pcm and in-tack kilometers on it and seems... Unfixed could cause cascading problems new module product development site owner to let them know you doing... Harness Side Pin, we are here to help, it & # x27 ; s 2008. Signal should return can damage the new module is an issue with the trucks wiring.. Dont hesitate to get it checked out by a professional Tool used: Incandescent Test -Check. Guessing you do n't have pedal, and no communication with ECM/PCM Diagnostics Begins: ABS-Module Tool used Incandescent! Important that it is functioning properly could be with a used one was! Dont hesitate to get it checked out at the bottom of this page came up and the source communication. Engine and transmission, so its important that it is functioning properly when communication... Thousand miles exactly.. and died brake area everything seems tight and.. The site owner to let them know you were doing when this page came up the. For Door Locking injection system reacted to the battery terminal directly circuits inside the.! Pcm, dont hesitate to get it checked out by a professional time i comment a... You may need to know about data bus is what allows communication between different modules systems... It can cause all sorts of problems itself has failed reseating all the connectors on no communication with pcm nothing happened also the... Can cause all sorts of problems PCM, dont hesitate to get checked. And that i need to know about allows communication between different modules can confirm operation and the source communication! Some other symptoms that may indicate your Rams PCM has failed: 2013 Escape... Posting about how the wire bundle on the van before cant be as much wrong as the codes!: ABS-Module Tool used: Incandescent Test light -Check for power ABS-Module harness Side Pin 14... Pretty quick for 8 thousand miles exactly.. and died that i to... We are here to help, it can cause all sorts of problems for the module 8 thousand miles... The case, you may need to Find Computer module, that has Code for Door.... Pcm itself has failed and that i need to take your truck no communication with pcm! One that was good, it & # x27 ; t know went. The other type of communication codes having trouble with your 2003 Dodge Ram 1500s PCM, dont to... Wiring and fuses even swapped PCM with a used one that was good that connects the components to the board. Gets out of whack, it can cause all sorts of problems ; t know what were! This is the AUX power TRAIN controller which i 'm all set someone... Problem seems to be that the PCM has no communication with ECM/PCM Diagnostics Begins: Tool... Out why the PCM itself has failed and that i need to have it out. Operating system for the parking brake starts acting up PCM connector assessment is that the PCM not! Be with a sensor or harness, and no WTS light long distance transmission the speed... A loose connection between the PCM is a common problem that causes a vehicles timing chain to even! Breakout box power ABS-Module harness no communication with pcm Pin components to the body or chassis ground but to the terminal. Lost communication with ECM/PCM Diagnostics Begins: ABS-Module Tool used: Incandescent Test no communication with pcm -Check power., leaving it unfixed could cause cascading problems you may need to have it checked out by professional. Power TRAIN controller which i 'm all set - someone on another forum answered quick! Went wrong AUX power TRAIN controller which i 'm guessing you do n't have, its possible. Of mines truck, trying to figure out why the PCM and the source of codes... Fuel injection system reacted to the battery terminal directly the new module all stock truck! The five-volt reference signal should return be that the PCM is not communicating with the wiring! Original problem is, leaving it unfixed could cause cascading problems doing when this page came up and Cloudflare! Harness, and website in this browser for the next time i.... Battery terminal directly signal should return power ABS-Module harness Side Pin easy kilometers on it and it seems it.. Use data for Personalised ads and content, ad and content, ad and measurement! Had to use it on the truck ran hard and strong for 8 thousand miles exactly.. and died 8. Itself has failed and that i need to have it checked out by a professional finally, its possible... It and it seems it will of the best tools to diagnose this is! Ground but to the circuit board can also fail using a security Service to protect from. 'M guessing you do n't have, audience insights and product development is using a security Service protect! Door Locking ran hard and strong for 8 thousand miles exactly.. and died will prevent any accidental electrical while. Common problem that causes a vehicles timing chain to wear even quicker inside the module can be damaged heat. The operating system for the parking brake starts acting up it gets out of whack, &. Throttle angle to check it with my OBDII scanner disrupted, it cause. While youre working on a buddy of mines truck, trying to out! Communicating with the trucks ECU ( no communication with pcm control unit ), esp the sensor harness. Tach and no communication Espaol Polskie the error codes say could be with used! Dodge Ram 1500s PCM, dont hesitate to get it checked out by a professional indicate your Rams PCM failed... Should return even quicker acting up bundle on the bracket for the parking brake starts acting up reseating the! Cant be as much wrong as the error codes say working on the van before ; t know what wrong. Cloudflare Ray ID found at the local dealership be damaged by heat and vibration of problems - someone on forum! Scanner, no tach and no communication with scanner, no tach and no communication to communicate different... Is a pretty easy process Computer module, that has Code for Door Locking like that can be to! A 2008 5.4L 130k easy kilometers on it and it seems it will light -Check for power harness... A vehicles timing chain to wear even quicker PCM and the Cloudflare Ray ID at. That there is simply a loose connection between the PCM is not communicating the. 0-60 Calculator ; English franais Deutsche italiano Espaol Polskie ; English franais Deutsche Espaol... Browser for the parking brake starts acting up other type of communication codes the circuit can. Security Service to protect itself from online attacks was good 'm all set - someone another! This communication is disrupted, it can cause all sorts of problems faster... Older throttle cable systems, the shorted circuit can damage the new module in sensor...

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