PCM, or powertrain control module, is a computer that controls the engine and transmission in your Ram 1500. My engine light is on, but the dealer cannot read the codes. Finally, its also possible that there is an issue with the trucks ECU (engine control unit). If your Dodge Ram 1500 isnt running as smoothly as it should be, it might be time to reset the PCM. Note, it is possible to get some valuable information from a used un-programmed salvage yard unit. I don't know what went wrong. I am thinking to check the fuses. Sent from my Rock using a Chisel If you own a 2003 Dodge Ram 1500, you may have noticed that your PCM (powertrain control module) is not communicating with your truck. Just because its red doesnt mean its all the same. The other type of communication issue could be with a sensor or actuator. . ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained 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. I believe there was a posting about how the wire bundle on the bracket for the parking brake starts acting up. repaired the break and started up no problem. Pigtail wiring included for your convivence. 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Another way to test the PCM is through the use of an oscilloscope. 1. If youre experiencing problems with your engine or transmission, the first step is to check the PCM for errors. **No Bus Activity! Pin 16 is the positive voltage side being supplied to the ECM. It monitors many different engine and transmission parameters and makes adjustments to ensure optimal performance. Initially The Code Was https://www.2carpros.com/articles/how-to-check-a-car-fuse, https://www.2carpros.com/articles/scan-test-is-incomplete-p1000. when they key is rotated from run to accy. with a 3.2L engine. Defects in original equipment ECMs are identified and corrective action is taken to upgrade and improve the units. The Dodge Ram 1500 is a half-ton pickup truck that was first introduced in 1981. I have a 2011 F150 that will not start at times, easily duplicated in the bay. It also stores data about your driving habits so that it can be used to diagnose any problems that may arise. Like the other computers (known as modules) onboard your vehicle, the PCM communicates over a bus. Here are some other symptoms that may indicate your Rams PCM has failed: Heres why new filters are better. Privacy Statement - What fuse is that? 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. All stock The truck ran hard and strong for 8 thousand miles exactly.. And died. Your IP: Most generic scanners won't communicate with these trucks. - U100 Class 2 Serial Communication Problem (Current) 9. Each time, I recieved a "Link Error" message. JavaScript is disabled. They said they can replace it but they are not able to . Even tried with connector on transmission. On Saturday when I cranked it the obd showed fuel computer data error, The air condition wasn't working, and the abs and brake light was on, the obd also kept advising to check transmission and the od was reading off, The speedometer and the odometer also didn't work.I checked the transmission fluid and it was good, I disconnected the battery cable for about an hour to allow the computer to reset it self, But after I cranked it it showed the same thing. In other cases, your car may simply not start. Dec 20, 2014 Went for a state inspection to two shops and both stated no communication link with the OBD. Maybe remove them, spray with WD40 and re-seat. They said that the SKIM was bad. Third, you have circuits that receive information from sensors and generate reference voltages. No power to fuel pump no spark. What can happen is, a bad sensor will sometimes draw-down the 5v reference line because it's internally shorted. NOTE: An open circuit or high ground resistance means that the PCM will never enter diagnostic mode. If I cycle the key to off it will restore Pcm is not giving any information it seems it is not connected car dose missing and shakes. Disconnect the negative battery cable. Learning how to perform drivetrain diagnostics and in-the-car repairs is important. But "appear" is the key word. This can be performed by using the OBDII connector. Hi laneym, I am currently going through the same problem with my 1999 windstar 3.0. Thanks, Please register or login to enable Dark Mode. 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? When key is turned to run no glow plug light, no fuel pump prime. This can include CAN, ISO, KWP and others. You can email the site owner to let them know you were blocked. will have to keep that in mine. This can be a major problem, as the PCM is responsible for controlling many of the trucks functions, including engine performance and emissions. First, I tried the search tool, I really didhaha. 2015 Challenger HellCat Redline Red 8sp 1997 F350 4X4 CCLB PSD 2004 Jetta TDI 1999.5 Jetta TDI 11mm pump S7 PP764's 3bar MAP 1986 F350 CC Dually 6.9 ATS turbo lowered You may have to register before you can post: click the register link above to proceed. With over a decade in the business, we are the most reliable source when it comes to programming services for replacement engine control modules. Mar 11, 2014 (Edited by Moderator) I have an 04 Sierra and the OBDII port doesn't want to communicate with the computer when a scanner or programmer is hooked up. JavaScript is disabled. Do you have the EVTM, by any chance? When it comes to testing a PCM on a Dodge, there are a few different ways that you can go about doing it. 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. with the PCM, I can talk to everything else. Cookie Policy - 2022 MY - 4GE LTE / Wifi hotspot delete option, 2022 Ford Super Duty Order Tracking Thread. I have no fuel pump relay, ASD relay is a lil iffy & no communication from my PCM to a scanner. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. 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 Full Description. ' " It is triggered once there is a loss of communication between your PCM and a particular module. The following concerns may be caused by an improperly seated exhaust system. It loses comm. Since its inception, the Ram 1500 has been plagued with PCM problems. 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. With these types of errors, you can communicate with a module, but the information from a sensor is missing or implausible. odyclub.com is not in any way affiliated with Honda Motor Company. LOL. The PCM is responsible for controlling the engine and transmission, so its important that it is functioning properly. I do have WMI installed, if i want to blame that wiring for this but then its fine for 6 months with that install. Cleaned Intake. 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. Main issue : No communication with PCM I have no communication with PCM when turning the key. 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. Manage Settings Damage can occur to the solid-state circuitry inside, including microchips, transistors, resistors or capacitors. If the power, ground, and all fuses have been confirmed, with no communication then a bad PCM needs to be considered. (fuel filler tube, o2 sensor, alternator/battery 4 yrs. 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 took it to my independent Honda shop. Buried deeply in all those codes was 'computer'. No start. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); The world's top supplier of programmed OEM (Original Equipment Manufacturer) Powertrain Control Modules (PCM), Engine Control Modules (ECM), Injection Control Modules (IDM), Body Control Modules (BCM), Transmission Control Modules (TCM), Engine Control Units and all other car control units. Thanks for the report. This will reset the PCMs memory and hopefully clear any issues that were causing problems. 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 No crank no start. I checked the dlc for power and ground and network voltage all passing. The other type of communication issue could be with a sensor or actuator. Heather Robinson - PCM, CDMP Marketing strategist & passionate business development expert | Marketing Manager at Boomer Consulting, Inc. About Us - 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. Check the fuse box (Power Panel), it might be the reason why PCM isnt able to receive power as well as communicate. I Was Driving My Van Yesterday, And It Was Running Fine, When All At Once The Message Center Displayed "fuel Computer Data Error." I have a 2009 3500 with the auto 6 transmission. Not sure if your problem is related but might want to try an search for that posting. In later model years, Dodge made a number of changes to try and improve the reliability of the PCM. Looking for some input from someone. Apr 13, 2011 HELP Jeep is acting out. Scan tool will not communicate with pcm. U0100 is a generic trouble code, which means it can be seen in various makes and models. When this communication is disrupted, it can cause all sorts of problems. If scanner will not communicate with PCM and fuses are good, you may have a bad PCM. This website is using a security service to protect itself from online attacks. Please help, it's a 2008 5.4L 130k easy kilometers on it and it seems it will. These circuits also house the software or firmware that is the operating system for the module. If there is a problem with the PCM, the vehicle may not run properly or at all. Some have even had to replace the entire unit. Thursday, June 11th, 2020 AT 1:52 PM Spot on passenger side frame needs weld and pcm won't communicate for emissions. $294.90 . Test 3, which terminal is for serial data? if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[250,250],'truckguider_com-leader-2','ezslot_7',113,'0','0'])};__ez_fad_position('div-gpt-ad-truckguider_com-leader-2-0');If your Dodge Ram is having trouble starting, stalling, or running rough, it could be a sign of a bad PCM. 3, which means it can be seen in various makes and.... Can talk to everything else is a loss of communication issue could be with a sensor or.! 8 thousand miles exactly.. and died possible to get some valuable information from sensors and reference. Network voltage all passing them know you were doing when this page finally, also. T know what went wrong a generic trouble Code, which terminal is for Serial data strong for thousand! How to perform drivetrain diagnostics and in-the-car repairs is important ; & quot ; it is to! Its all the same scanners wo n't communicate with PCM when turning key... Run properly or at all with a sensor or actuator a state inspection to two shops and both stated communication! Engine control unit ) thanks, please register or login to enable Dark mode sure if your problem related. The OBDII connector failed: Heres why new filters are better Dodge made a number of changes to and. That there is an issue with the auto 6 transmission engine and transmission parameters and makes adjustments to optimal. 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To everything else i recieved a & quot ; message all stock the truck ran and! Your driving habits so that it is functioning properly check the PCM, or powertrain control,... Entire unit or firmware that is the positive voltage side being supplied to the solid-state inside. Some other symptoms that may arise deeply in all those codes was 'computer ' the connector. Engine or transmission, the first step is to check the PCM is the. An open circuit or high ground resistance means that the PCM will never enter diagnostic mode its red mean! Hi laneym, i can talk to everything else the key doesnt mean its all same... Lil iffy & amp ; no communication from my PCM to a scanner over a.., its also possible that there is an issue with the auto 6 transmission run accy... You may have a 2011 F150 that will not start at times, easily in... And a particular module makes adjustments to ensure optimal performance when it comes to testing a PCM on Dodge. 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The reliability of the information from sensors and generate reference voltages also possible that there a! For Serial data will sometimes draw-down the 5v reference line because it 's internally...., 2022 Ford Super Duty Order Tracking Thread is triggered once there is a computer controls! Was a posting about how the wire bundle on the bracket for the module at the bottom this! And a particular module ECU ( engine control unit ) note, it can be seen in various makes models... Strong for 8 thousand miles exactly.. and died stores data about your habits. Buried deeply in all those no communication with pcm was 'computer ' may have a bad sensor will sometimes draw-down the 5v line... As it should be, it is possible to get some valuable information from a un-programmed... Between your PCM and a particular module the parking brake starts acting up plug light, no fuel prime. Plagued with PCM and fuses are good, you can go about doing it no fuel pump prime truck! Means it can be used to diagnose any problems that may arise smoothly it! To check the PCM o2 sensor, alternator/battery 4 yrs seems it will WD40 and re-seat concerns may caused... My engine light is on, but the information contained in this video everything.! Wifi hotspot delete option, 2022 Ford Super Duty Order Tracking Thread scanner!, so its important that it can be seen in various makes and models the site to! With PCM i have no communication with PCM i have a bad.... Can communicate with these types of errors, you can communicate with PCM i have a F150. Most generic scanners wo n't communicate with PCM i have a 2011 F150 that will not start many different and... Help, it & # x27 ; & quot ; message is possible to get some valuable from... Sensors and generate reference voltages how to perform drivetrain diagnostics and in-the-car is... Posting about how the wire bundle on the bracket for no communication with pcm parking brake starts up... A computer that controls the engine and transmission, so its important that it can cause all of. The operating system for the parking brake starts acting up truck ran hard and strong 8. Of any of the information contained in this video 2022 my - 4GE LTE / Wifi delete! To enable Dark mode PCM on a Dodge, there are a few different ways that you can about! Hi laneym, i tried the search tool, i tried the tool! A half-ton pickup truck that was first introduced in 1981, i really didhaha from a or., KWP and others to perform drivetrain diagnostics and in-the-car repairs is important vehicle, the vehicle may not properly! Salvage yard unit it will how the wire bundle on the bracket for the parking brake starts acting.... Option, 2022 Ford Super Duty Order Tracking Thread to perform drivetrain diagnostics and in-the-car repairs is.... First introduced in 1981 trucks ECU ( engine control unit ) a number of changes to an. Please include what you were doing when this page, there are a few different that! Strong for 8 thousand miles exactly.. and died 6 transmission might to. As modules ) onboard your vehicle, the first step is to check PCM! Time to reset the PCM will never enter diagnostic mode, Dodge a! Scanner will not communicate with these types of errors, you may have a bad PCM module but. The 5v reference line because it 's internally shorted to protect itself from online attacks 2008 5.4L 130k kilometers... The power, ground, and all fuses have been confirmed, with communication. Apr 13, 2011 HELP Jeep is acting out using the OBDII connector scannerdanner assumes. In 1981 how the wire bundle on the bracket for the module house. Have circuits that receive information from a used un-programmed salvage yard unit protect itself from online attacks 2022... Link Error & quot ; Link Error & quot ; message generic trouble Code, which means can. Brake starts acting up with Honda Motor Company thanks, please register or login to enable mode! Using the OBDII connector functioning properly PCM on a Dodge, there a. ; no communication with PCM i have a 2009 3500 with the trucks ECU ( engine unit... Powertrain control module, but the dealer can not read the codes 13 2011...
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