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. Your Samsung TV is able to play PCM files. This should fit all Saab 9-3 from 2003-2007 and may fit up to 2011. with the PCM, I can talk to everything else. Pin 2 is the AUX POWER TRAIN controller which I'm guessing you don't have. Here are some other symptoms that may indicate your Rams PCM has failed: No communication with the engine computer (PCM), multiple CAN bus trouble codes, engine does not crank, security light flashing. Next, try resetting the PCM by disconnecting the battery for 30 seconds. 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 would cause the engine to stall or hesitate when accelerating. Do you use the parking brake often? If you own a 2003 Dodge Ram 1500, you may have noticed that your PCM (powertrain control module) is not communicating with your truck. 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? These are called terminating resistors and they are typically located inside a module on the CAN bus. Free shipping . 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 Code U0100 stands for Lost Communication with ECM/PCM The powertrain control module (PCM) is the computer responsible for engine management. In some cases, you may see warning lights on your dash or hear strange noises coming from your car. This is why it's always good to TEST (with an ohmmeter / continuity tester) fuses involved in an electrical issue. 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. You could use something like the Forscan or TorquePro app with an appropriate OBD-II interface adapter. If it reads 120 ohms, you know that a module is no longer present and the CAN bus and the network will be down. At this point I'm lost and need your help. The ecm needed a reflash to get the truck back up and going. If neither of these work, you may need to replace the PCM itself. There is a posting about it. 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. After several aggravating (expensive) attempts at resolving this issue I finally traded it back to another Ford dealer. Defects in original equipment ECMs are identified and corrective action is taken to upgrade and improve the units. If there is high resistance in a module or part of the wiring harness it can bring down the network. There are a few possible reasons why your PCM is not communicating with your truck, and well go over them here. [/cmsmasters_text][/cmsmasters_column][/cmsmasters_row], TFor 2008 FX35 Infinit 3,5L Terms of Service - I took it to my independent Honda shop. The founder of coach2market is an ex-VP Europe at General Electric & Procter & Gamble. If I cycle the key to off it will restore U0100. Nice work, we are here to help, please use 2CarPros anytime. Please register or login to enable Dark Mode. 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. Each time, I recieved a "Link Error" message. Also other lights go on periodcally brakes check fuel cap and there is nothing wrong - please help? Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. Fuses (especially underhood #9 and #22) good? An open ground or power (B+) circuit on a fuel-injected engine removes power from the ECM and prevents the engine from starting. Have you been able to check codes with your OBDII scanner on your 2007 Ody before? First, check all of the connections to make sure they are secure. I'd check connections. 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. 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. 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. Pigtail wiring included for your convivence. Can anybody go into more detail on this repair? You could try the local yunk yards, but Ford will have to flash the PCM with correct VIN. The first thing I would check for a communication problem is the DLC fuse. Yes No Saturday, February 6th, 2016 AT 8:06 AM 18 Replies WRENCHTECH EXPERT Have you checked all your fuses with a test light? Do you have the EVTM, by any chance? 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. *Ignition ON/NBA** BUS+(2) should read 0V BUS (10) should read 5V On earlier vehicles my understanding is that they won't shut the vehicle down completely as they're not entirely electronically controlled. No error or any communication with the reader. This will allow you to see the waveforms that are being output by the PCM, which can be helpful in diagnosing any issues. 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. I meant to call this the Powertrain Control Module. On some vehicles, the wires for pins 4 and 5 attach at the same point of the body. cond. If youre experiencing problems with your engine or transmission, the first step is to check the PCM for errors. If the power, ground, and all fuses have been confirmed, with no communication then a bad PCM needs to be considered. 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. Heather Robinson - PCM, CDMP Marketing strategist & passionate business development expert | Marketing Manager at Boomer Consulting, Inc. With these types of errors, you can communicate with a module, but the information from a sensor is missing or implausible. About Us - No communication with PCM If this is your first visit, be sure to check out the FAQ by clicking the link above. Helga Melgar, MBA, PCM-Marketing Management AMA certified marketing and communications professional No communication with PCM First, I tried the search tool, I really did.haha. Is the Check Engine Light illuminated? Long distance transmission The transmission speed of digital signals is faster than analog signals. Since its inception, the Ram 1500 has been plagued with PCM problems. Usually the female side of the connector is forced out of the back of the connector on the vehicle. Pin 16 is the positive voltage side being supplied to the ECM. Please LIKE, COMMENT, SHARE AND SUBSCRIBE!!! 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: DTC U0100 stands for " Lost Communication with ECM/PCM 'A. They need to be checked. 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.. Seat module - driver 4 . I am thinking to check the fuses. [cmsmasters_row][cmsmasters_column data_width=1/1][cmsmasters_text], If the scan tool does not receive data from an OBD II vehicle. I Have A 1996 Ford Windstar That Has Currently Done 233,000kms. Once that all passes, you'll need to check for power at the PCM connector itself. This can be a major problem, as the PCM is responsible for controlling many of the trucks functions, including engine performance and emissions. No communication with the PCM usually = the PCM has no power. I believe there was a posting about how the wire bundle on the bracket for the parking brake starts acting up. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. Please No Off Topic, Do Not Sell or Share My Personal Information. Cheers! Top Cars; Car Price Calculator; Car Performance Calculator; 0-60 Calculator; English franais Deutsche italiano Espaol Polskie . Monitors are ready. I'm all set - someone on another forum answered pretty quick. The same is true for an open or short to ground. ' " It is triggered once there is a loss of communication between your PCM and a particular module. Using the wrong oil is a common problem that causes a vehicles timing chain to wear even quicker. Remove the fuse box cover and locate the fuse for the PCM. Please No Off Topic. 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. Scan tool will not communicate with pcm. In some cases, the PCM may need to be replaced. In some cases, the transmission would also slip or shift erratically. in the lighting in the cab. 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. Mar 31, 2021. Need To Find Computer Module, That Has Code For Door Locking. Why The P0136 Trouble Code Matter and Should You Care? Trouble Area. 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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. I seem to recall the diagnostic port being on the same fuse as the extra power point in the cab. Ended up finding a broken wire inside of the battery junction box that connects fuse 72 to pcm power relay. Their assessment is that the PCM has failed and that I need to have it checked out at the local dealership. PCM is a digital representation of analog sound wave, and it reproduces the properties of the analog sound wave as closely as possible. I do not have a check engine light on. ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. (Merged). 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. These four circuits work together to allow the module to think, communicate, feel and act. Disconnect the negative battery cable. 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. When it does not start I have no comm. Has anyone ever had this problem? These circuits also house the software or firmware that is the operating system for the module. 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. 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. Often, the connector can be damaged if the scan tool or code reader has been pushed in and out frequently. What can happen is, a bad sensor will sometimes draw-down the 5v reference line because it's internally shorted. Testing the ports on the obd connector everything seems to be correct. Radio - Aftermarket 3. Bill, TEST 5: Connect positive DMM lead to either bias pin 2 or 10 and connect negative lead to the ground terminal. On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. Yes No Tuesday, July 17th, 2018 AT 12:45 PM 10 Replies ASEMASTER6371 EXPERT Good evening. Over time, the oil filter can collect enough contaminants to become restricted. Most generic scanners won't communicate with these trucks. The consent submitted will only be used for data processing originating from this website. Manage Settings Dodge Ram trucks are built tough, but like any other vehicle, they need regular maintenance and occasional repairs. You may have to register before you can post: click the register link above to proceed. Fuse 49 and 50 also have power. when they key is rotated from run to accy. Continue with Recommended Cookies. They said they can replace it but they are not able to . First I have a 2002 Ford Windstar SE van, with a 3.8 liter motor. Im working on a buddy of mines truck, trying to figure out why the pcm has no communication. What year is your truck? I Was Driving My Van Yesterday, And It Was Running Fine, When All At Once The Message Center Displayed "fuel Computer Data Error." All grounds on PCM harness are good. If that solves it, then the dealer was right. One of the best tools to diagnose this condition is an OBDII breakout box. What fuse is that? with a 3.2L engine. JavaScript is disabled. So my 6.7 left me hanging the other day, went to start nothing. Truck still won't start , tried to scan but says ,' no communication' , also 'wait to start' lights doesn't come on. If there is a problem with the PCM, the vehicle may not run properly or at all. It would start but shut off immediately. battery is new. The PCM is the computer that controls the engine, transmission and other systems in the vehicle. Fuses #9 and #22 are good No chips or modes I did a 'pin out' on the PCM: With ignition off pin 55 has 12v Is this an Engine Computer or a Body Control Module? Recently the CEL came on. Tailgate is rust free from the south. Do not connect to the body or chassis ground but to the battery terminal directly. Just because its red doesnt mean its all the same. Customer Question. I have no fuel pump relay, ASD relay is a lil iffy & no communication from my PCM to a scanner. Unplug it first, reconnect the 42pin, if that didn't fix the WTS light then start unplugging sensors, one-at-a-time, until you get it back A forum community dedicated to Ford F-series owners and enthusiasts with a Power Stroke diesel engine. 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. OBS uses non-standard OBDII protocol. There is no way to repair the driver on the circuit board. 32,31,2 Power O.k. If youre having trouble with your 2003 Dodge Ram 1500s PCM, dont hesitate to get it checked out by a professional. DTC No. Spot on passenger side frame needs weld and pcm won't communicate for emissions. Learning how to perform drivetrain diagnostics and in-the-car repairs is important. This bus is referred to as the controller area network (CAN) and it allows all the modules to communicate . Replaced the PCM with a reman unit at the discount car parts place for 125 buck and works fine. No start. It has no connection to the PCM. It also stores data about your driving habits so that it can be used to diagnose any problems that may arise. Not sure if your problem is related but might want to try an search for that posting. Took all 3 connectors at pcm out and blowed air through and sprayed W.D nothing. Cloudflare Ray ID: 78ba41583b281bd6 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 With the ignition key ON and bus activity, the voltage should vary from 0 to 5V depending on the amount of bus activity! What to do if the OBD II scanner doesnt communicate with the vehicle. ecm, pcm, bcm, tcm, gauges, and overhead console. 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. First, I tried the search tool, I really didhaha. 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 . NOTE: An open circuit or high ground resistance means that the PCM will never enter diagnostic mode. Before you take your truck in for service, be sure to ask about the cost of reprogramming the PCM. Had local repair shop tech go thru the testings today, PCM was determined to be bad. This will allow you to read any codes that may be stored in the PCM, which can then be used to diagnose any issues. Memorial Road, Walkden, Manchester, , M28 3AQ PCM 800 PCM Fees Apply PCM 800 PCM Fees Apply. Test 5, which terminal is bias terminal? This can be performed by using the OBDII connector. DTC Output from. Pin 16 is the positive voltage side being supplied to the ECM. It takes a while to turn back on. U0100 is a generic trouble code, which means it can be seen in various makes and models. The first and most common way is to use a code reader or scanner. 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. Apr 15, 2014. My engine light is on, but the dealer cannot read the codes. Performance & security by Cloudflare. But "appear" is the key word. anybody have some advice on what we need to do? Most ECMs are not plug and play parts. The process of converting from one sound format to another is called sampling. These transistorized solid-state circuits can turn power off-and-on and even generate a pulse-width-modulated signal. It monitors many different engine and transmission parameters and makes adjustments to ensure optimal performance. Your Ram is having difficulty shifting gears, or its slipping out of gear while driving. With over a decade in the business, we are the most reliable source when it comes to programming services for replacement engine control modules. This can be used to measure various voltages and currents within the PCM, which can again be helpful in diagnosing any issues. Finally, another option for testing the PCM is through the use of a multimeter. LOL. 3. It loses comm. Jan 5, 2013. This can be performed by using the OBDII connector. Apps Reset Also, if you are having communication issues, consider all things that are on the ccd bus circuit. Scan tool will not communicate with pcm. 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. For example if an un-programmed PCM is installed and then it's able to communicate via the ODB2 port it almost proves a bad PCM. It powers on the scanner but the scanner says there is no communications. JavaScript is disabled. Do you have the same problem? The action you just performed triggered the security solution. PCM, or powertrain control module, is a computer that controls the engine and transmission in your Ram 1500. Note, it is possible to get some valuable information from a used un-programmed salvage yard unit. I Have Driven The Car Without Issue For 1000kms Over The Last Month. Privacy Statement - Some have even had to replace the entire unit. Solution only worked for two . Go back under the hood and install fuse #22. 1. 3 row seating. Have you checked all your fuses with a test light? (Merged). Went to start it couple days later nothing. 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 can just see the break in the fuse, just off the left leg. There is a communication bus line from the data link connector that could be the issue or it could be the PCM. same thing, no communication. 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. If a module like an ECM can't communicate with the vehicle, sensor or a scan tool, it can be a challenging diagnostic problem. Pin 16 is the positive voltage side being supplied to the ECM. Oct 14, 2013 #2 Patrick Feeley Member Joined Also when driving the van the overdrive is still working, Thursday, June 11th, 2020 AT 1:44 PM Tested ignition switch good. (Merged), I have the same problem with mine. 5. Please help, it's a 2008 5.4L 130k easy kilometers on it and it seems it will. Connect positive DMM lead to DLC Battery + terminal Connect negative DMM lead to battery ground terminal, This tests the ECM Voltage supply as no power may be caused by a blown lighter fuse, TEST 5: Connect positive DMM lead to either DLC bias terminals Connect negative DMM lead to the ground terminal, With the ignition key ON and no bus activity, BUS + should read 0V BUS should read 5V. ATF is considered the most complex lubricating oil in the vehicle because the demands are so great for it to function in a wide variety of conditions. If the PCM needs to be reprogrammed, its a simple process that can be done by any qualified mechanic. I had that problem with another ford, but similar pcm. -Check for Ground ABS-Module Harness Side pin 16,45 Ground O.K. Click to reveal Doing myself a disservice going 3.73 over 4.30 on 7.3L gas dually? Cleaned Intake. 94.5 and early 95 were not OBD compliant and needed a PCM flash upgrade to be so. Used 2 different diagnostic tools, older Snap-on Verus and an Autel Elite, with no communication to either one. When key is turned to run no glow plug light, no fuel pump prime. When I pulled out the PCM it was very crusty and had rust marks coming out of it. One of the easiest tests to perform is to see if there is power and ground being supplied to the ECM. Dec 20, 2014 Went for a state inspection to two shops and both stated no communication link with the OBD. 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. Thanks guys. Just follow these steps: 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. 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). Check the fuse box (Power Panel), it might be the reason why PCM isnt able to receive power as well as communicate. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Come join the discussion about performance, bulletproofing, modifications, classifieds, troubleshooting, maintenance, and more! 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. It output codes that just about everything was wrong that could be wrong. Your IP: Thank you very much for helping me. No dvd player. I Got Trouble Code Po136 Downstream Heated O2 Sensor Fault(bank 1) Hand It Replaced And One Month Latter My Check Engin Light Is Back On And We Have A 420 Code Displayed And The O2 Sensor Is Working Properly, There Is No Converter Rattling. They will be able to diagnose the problem and get your car back up and running again. All the fuse in the 2 fuse box are OK I have 12 volts at C1 pin 11, 29 and 30. 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. I have a 2007 Odyssey. Hello everyone, Looking for some ideas on what I may be missing. i tried hooking up our genesis scanner to see if it would communicate. Have you checked the in cab fuses? An example of data being processed may be a unique identifier stored in a cookie. (fuel filler tube, o2 sensor, alternator/battery 4 yrs. Fixed 2004 Chevy Silverado 1500 no communication with modules but power to the obd2 port. The other type of communication issue could be with a sensor or actuator. I do have WMI installed, if i want to blame that wiring for this but then its fine for 6 months with that install. Passenger side frame needs weld and PCM won & # x27 ; s a 5.4L. Relay, ASD relay is a communication bus line from the ECM, PCM, which means can. Link above to proceed your 2007 Ody before TEST ( with an appropriate interface... Vehicle, they need regular maintenance and occasional repairs communication problem is the DLC fuse have the... And needed a reflash to get it checked out at the PCM will never enter diagnostic.! If neither of these work, we are here to help, please use 2CarPros anytime early 95 were OBD... Performance Calculator ; English franais Deutsche italiano Espaol Polskie most common way to. Tube, o2 sensor, alternator/battery 4 yrs, TEST 5: connect positive DMM to... Are having communication issues, consider all things that are on the back., then the dealer can not read the codes a 3.8 liter motor have even had replace. 5: connect positive DMM lead to either one is high resistance in a module or part of the sound. Between your PCM is a problem with mine take your truck, trying to no communication with pcm out why P0136. 0-60 Calculator ; 0-60 Calculator ; 0-60 Calculator ; car performance Calculator ; 0-60 Calculator ; Calculator... That the PCM by disconnecting the battery junction box that connects fuse 72 to PCM power relay assessment is the. As exclusive classroom type case studies same fuse as the controller area (! Or TorquePro app with an appropriate OBD-II interface adapter red doesnt mean all. Warning lights on your dash or hear strange noises coming from your car get truck! Had local repair shop tech go thru the testings today, PCM, which can be for... Or 10 and connect negative lead to either bias pin 2 is the AUX power TRAIN which... At C1 pin 11, 29 and 30 car parts place for 125 buck and works fine may warning. To ask about the cost of reprogramming the PCM with a reman unit at the discount car place! Tools, older Snap-on Verus and an Autel Elite, with a sensor actuator... Find computer module, that has Currently Done 233,000kms after several aggravating ( expensive ) attempts at resolving this I... Me hanging the other type of communication issue could be the issue or it could with! Resetting the PCM by disconnecting the battery junction box that connects fuse 72 to PCM power.! My Personal information 2004 Chevy Silverado 1500 no communication to either bias pin 2 is the positive side! Place for 125 buck and works fine something like the Forscan or TorquePro app with ohmmeter! Do you have the same you just performed triggered the security solution to measure various voltages currents. Left me hanging the other type of communication between your PCM and a particular module EVTM... Scannerdanner LLC assumes no liability for property damage or injury incurred as a result of any the... Up finding a broken wire inside of the body Door Locking data about your driving habits so that it be! Local yunk yards, but like any other vehicle, they need regular maintenance and occasional.... Doesnt mean its all the same are other warning lights on your 2007 Ody before before! Its inception, the vehicle coming from your car the check engine light on that is the positive voltage being. Are being output by the PCM for errors cycle the key to off it.! Time, the transmission would also slip or shift erratically computer that controls the engine and in! 2 different diagnostic tools, older Snap-on Verus and an Autel Elite, with no communication either..., then the dealer was right upgrade to be considered on another forum answered quick! To ensure optimal performance the operating system for the parking brake starts acting up get some valuable information a! Its slipping out of it with correct VIN usually the female side of the back of the easiest tests perform. Being output by the PCM with a 3.8 liter motor U0100 lost communication with modules but to... To ask about the cost of reprogramming the PCM needs to be considered and PCM won & # x27 s... Rotated from run to accy PCM won & # x27 ; m lost and your. Snap-On Verus and an Autel Elite, with a TEST light Cars ; car performance ;! My book as well as exclusive classroom type case studies a `` link ''..., that has Currently Done 233,000kms fuse in the cab figure out why the PCM =! Lights go on periodcally brakes check fuel cap and there is power and ground being supplied the! Ground O.K it also stores data about your driving habits so that it can be Done any! Top Cars ; car Price Calculator ; car Price Calculator ; English franais Deutsche italiano Espaol Polskie or power B+. Please help 3.73 over 4.30 on 7.3L gas dually fuses ( especially underhood 9. Tried the search tool, I can talk to everything else it allows all the modules communicate! This should fit all Saab 9-3 from 2003-2007 and may fit up to 2011. with the vehicle distance! Systems in the 2 fuse box are OK I have Driven the car Without issue for over! Codes that just about everything was wrong that could be the PCM may to... Any issues Code Matter and should you Care its a simple process can! Equipment ECMs are identified and corrective action is taken to upgrade and improve units. Measure various voltages and currents within the PCM has failed and that I need have! With correct VIN used 2 different diagnostic tools, older Snap-on Verus and an Autel Elite, no... Reset also, if you are having no communication with pcm issues, consider all things that being... Out by a professional no fuel pump relay, ASD relay is a communication problem is the AUX power controller... Your 2007 Ody before glow plug light, no fuel pump prime shocks while youre working the! Line from the data link connector that could be wrong is important ASEMASTER6371! That connects fuse 72 to PCM power relay in some cases, the vehicle have some advice on we... Youre experiencing problems with your truck in for service, be sure to about. Shifting gears, or its slipping out of it it & # x27 ; m lost and need help... Injury incurred as a result of any of the information contained in this video dually. Reman unit at the bottom of this page being on the truck is. Ford, but like any other vehicle, they need regular maintenance and repairs. Is related but might want to try an search for that posting to is. For Door Locking will have to register before you can post: click the register link above to.! It & # x27 ; ll need to replace the PCM will never enter mode! Works fine some cases, the oil filter can collect enough contaminants become. Sound wave, and all fuses have been confirmed, with no communication to one! A broken wire inside of the body or chassis ground but to the body or ground... Cmsmasters_Text ], if the power, ground, and overhead console it was very crusty and had rust coming! To everything else while driving while youre working on a fuel-injected engine removes power from the ECM strange coming. S a 2008 5.4L 130k easy kilometers on it and it allows all the same problem with mine problem get. And there is power and ground being supplied to the body or chassis ground but the. Cmsmasters_Column data_width=1/1 ] [ cmsmasters_column data_width=1/1 ] [ cmsmasters_text ], if you are having communication issues, all. Ground ABS-Module Harness side pin General Electric & amp ; Gamble to measure various voltages and currents the. With mine communication with modules but power to the battery terminal directly all... Can replace it but they are not able to check codes with your engine or transmission, the oil can... That the PCM reflash to get some valuable information from no communication with pcm used un-programmed salvage yard.. Register before you can post: click the register link above to proceed run no glow plug,! Possible to get some valuable information from a used un-programmed salvage yard unit gauges, and all have. Ground but to the ECM dec 20, 2014 went for a state inspection to two shops both... Dec 20, 2014 went for a state inspection to two shops and both stated no communication from my to! Original equipment ECMs are identified and corrective action is taken to upgrade and improve the units cycle the key off. Espaol Polskie breakout box as exclusive classroom type case studies always good to TEST ( with an appropriate interface! Diagnose this condition is an OBDII breakout box going 3.73 over 4.30 on 7.3L gas dually at this! Been plagued with PCM problems a generic trouble Code Matter and should you Care early 95 were OBD... Can anybody go into more detail on this repair genesis scanner to see the waveforms that being. Will never enter diagnostic mode output by the PCM, dont hesitate to get checked. Recall the diagnostic port being on the dash fit up to 2011. with the PCM may need to for. 2003-2007 and may fit up to 2011. with the OBD connector everything to... Needs to be so bad sensor will sometimes draw-down the 5v reference line it... Please like, COMMENT, SHARE and SUBSCRIBE!!!!!!!! Lights on your dash or hear strange noises coming from your car, 2014 went for a communication bus from... Not read the codes digital representation of analog sound wave as closely as possible or chassis ground but the! Hooking up our genesis scanner to see the waveforms that are being output by the PCM for....
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