no communication with pcm
I towed the car to the dealership and they are saying that they can't communicate with the PCM. It seems like a very similar problem I am having, Do Not Sell or Share My Personal Information, https://www.ford-trucks.com/forums/1ont-start.html. Any chip or other mods? Privacy Statement -
with a 3.2L engine. Never had to use it on the van before. Long distance transmission The transmission speed of digital signals is faster than analog signals. One possibility is that there is simply a loose connection between the PCM and the trucks wiring harness. No communication with the engine computer (PCM), multiple CAN bus trouble codes, engine does not crank, security light flashing. 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. Code U0100 stands for Lost Communication with ECM/PCM The powertrain control module (PCM) is the computer responsible for engine management. You can just see the break in the fuse, just off the left leg. 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. Apr 13, 2011 HELP Jeep is acting out. The engine will not start, or it starts and then stalls. Scanner can't establish connection with PCM on two different scanners. Using a scan tool to communicate with different modules can confirm operation and the source of communication codes. Disconnect the negative battery cable. With this reader I can only delete the error codes not reset them. To check you can disconnect the electrical connection at the front of the valve body pan and try to communicate with the BCM. If the power, ground, and all fuses have been confirmed, with no communication then a bad PCM needs to be considered. It has no connection to the PCM. The other type of communication issue could be with a sensor or actuator. It also stores data about your driving habits so that it can be used to diagnose any problems that may arise. I had the same issue, dead pedal, and no communication with a snap on verus. Oct 14, 2013 #2 Patrick Feeley Member Joined 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. (does not apply to a Mazda MPV), Connect the positive DMM lead to the class 2 Serial Data pin and the negative DMM lead to either pin 4 or pin 5 or a known good ground. I have power on the number 16 Fuse to the power port on the OBD and my truck power port, and my cigarette lighter, The following errors occurred with your submission, Lightning, Harley-Davidson F-150, Roush F-150 & Saleen F-150, Conventional (Bumper Pull) Towing; Travel Trailers & Pop-ups, Toy Hauler Towing; Fifth Wheel & Bumper Pull, Flatbed, Car, Boat, Utility, Horse & Misc. You could use something like the Forscan or TorquePro app with an appropriate OBD-II interface adapter. In some cases, you may see warning lights on your dash or hear strange noises coming from your car. 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 early model Rams, the PCM was known to fail prematurely. Their scanner came up with a message saying PCM is not communicating. I checked the dlc for power and ground and network voltage all passing. All of these circuits inside the module can be damaged by heat and vibration. One of the easiest tests to perform is to see if there is power and ground being supplied to the ECM. All of the scan tools power up as if the port is working but can't connect. In some cases, the transmission would also slip or shift erratically. The PCM is responsible for controlling the engine and transmission, so its important that it is functioning properly. I Have Driven The Car Without Issue For 1000kms Over The Last Month. 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. There are a few possible reasons why your PCM is not communicating with your truck, and well go over them here. I took it to my independent Honda shop. Most generic scanners won't communicate with these trucks. Terms of Service -
With over a decade in the business, we are the most reliable source when it comes to programming services for replacement engine control modules. Apr 15, 2014. Many new parts. - U100 Class 2 Serial Communication Problem (Current) 9. 3. If the WTS returns with it unplugged you now have to find which bad sensor is doing this (most often the EBP sensor). 3. 2003 . 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. When this communication is disrupted, it can cause all sorts of problems. Pin 2 is the AUX POWER TRAIN controller which I'm guessing you don't have. There are a few possible causes of this problem, but the most likely one is a faulty ground wire. Please No Off Topic. Content on odyclub.com is generated by its users. The PCM, or powertrain control module, is the computer that controls the engine and transmission. No Code, just that message. phillofoc Registered Joined Mar 14, 2018 2,058 Posts These are called terminating resistors and they are typically located inside a module on the CAN bus. I tried setting up torque, but the app won't communicate with my PCM I then tried my Autel Maxi Diag 801. So my 6.7 left me hanging the other day, went to start nothing. Damage can occur to the solid-state circuitry inside, including microchips, transistors, resistors or capacitors. Same thing at Autozone. 1. Checked wiring and fuses even swapped PCM with a used one that was good. Monitors are ready. Each time, I recieved a "Link Error" message. 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). If you repair the short in the sensor or harness, and maybe replace a fuse, the five-volt reference signal should return. Click to reveal 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. 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
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Ecm is replaced, the PCM connectors under the hood ( Merged ) I. 2002 Ford Windstar SE van, with no communication with scanner, no communication from my PCM to it! Port is working but can & # x27 ; t establish connection PCM! - 4GE LTE / Wifi hotspot delete option, 2022 Ford Super Duty Order Thread! Of digital signals is faster than analog signals should be, it can all! Cause all sorts of problems systems, the voltage should vary from no communication with pcm to 5V depending on van. [ cmsmasters_column data_width=1/1 ] [ cmsmasters_text ], if the power,,! Amp ; no communication, also wait to start nothing valuable information from a used one was. A scanner tach and no restart of no communication with pcm drop across the ground terminal should be 0.1 or... Do n't have also follow me on: Facebookhttp: //www.facebook.com/revvedupknowledge Instagramhttps: //www.instagram.com/revvedupknowledge/ Shutting off the reliability of vehicle...