Freightliner ecu 128 fault 1. ECU 128 only identifies the module, it is not a fault code.

Freightliner ecu 128 fault 1 With a Fec stick tire boom. Jun 13, 2019 · Hello. , ECU 128, PLD 111) indicating sensor faults. 2005 freightliner columbia fault code ecu 128 sid 001 fail 00. Ecu 128 diag 2 fault 1 fault 2 freightliner colombia with mbe 4000, 2007 Freightliner Colombia with mercedes benz, Yes - Answered by a verified Technician ECU code 128 on a 2004 Freightliner typically indicates a communication or sensor fault. Customer: I have a 2003 Freightliner M2106 with fault code ECU 128 and an MBE 906 engine 6. Ecu 128, sid 146, fail 07, fault 2. 13 I called freightliner and they did not have an answer. Why Does Fault Code 385-1 and ECU Code 128 Appear Only at Highway Speed on a Freightliner with C15 Cat? Mechanic's Assistant chat Customer: I'm experiencing a Freightliner with a C15 engine that is showing fault code 385-1 and ECU code 128. ECU 128, What are we dealing with? ECU 128 message is displayed on the dashboard screen once a malfunction is identified in any element of the engine's electronic control system by the ECU. 13K subscribers Subscribed 55 22K views 3 years ago Discover more answers 2003 freightliner fl 70 cat 3126 engine- fault code ecu 128 2005 freightliner columbia check engine light code ecu 128 2004 freightliner series 60 detriot starts on starting fluid will not stay running on its own changed fuel filters ang May 14, 2014 · Hey Phil I went down to the local Freightliner (Sterling) dealer and asked around the service dept, one of the guys recommended that it might be in the under hood fuse/relay block on the firewall. Jump to page : 1 Now viewing page 1 [50 messages per page] Jump to forum : Search this forum Printer friendly version E-mail a link to this thread Delete cookies Oct 15, 2013 · Freightliner M2 with C7 engine getting this fault code ECU 128 SID 681264? Discussion in ' Freightliner Forum ' started by jzcartage, Sep 27, 2016. The dash diagnostics indicate ECU 128, PID 111, Fail 03. Different trucks display faults in different ways. & ecu 128 Sid 006 fail 00 2006 Freightliner with Detroit 60 series. Begin troubleshooting by checking the ignition switch wiring and connectors for corrosion or looseness. Right next to the windscreen is a code that can be seen. Ddecv The ECU 128, SID 155, Fail 00 indicates an EGR circuit fault. The ECU 128 code indicates a communication or sensor fault in the Detroit Diesel Series 60 engine. Can you hit a dash button and get more numbers? You should also get a PID/SID and FMI number, which is the actual fault code, the only thing I can tell you is that you have a fault in the engine ECU, I need more info. Disconnecting and reconnecting this sensor may temporarily reset the system. It’s a common Code ECU 128 PID 84 indicates an O2 sensor failure on the DD15 engine. Nov 13, 2020 · Thanks for your help as the engine light shut down flashes and she shuts down in a couple min. Jan 1, 2024 · Understanding the ECU 128 code is crucial for maintaining the performance and longevity of your Freightliner’s Detroit engine. Freightliner I have a 05 freightliner with c-7 cat. I have a 2006 Freightliner Columbia with a Detroit Series 60 14L engine. The computer in the truck reads the following codes: ECU 128, PID 073, FAIL 11, SID Apr 16, 2014 · ecu 128 pid 102 fail 03 Discussion in ' Heavy Duty Diesel Truck Mechanics Forum ' started by bruce25, Oct 13, 2018. What Is the ECU 128 Code on Freightliner? When your Freightliner’s onboard diagnostics system registers the ecu 128 code, it’s signaling a specific fault detected within the vehicle’s engine control or related systems. ECU 128 code is not a fault code. Engine Fault codes (MID, PID, SID, FMI) FREIGHTLINER Component Codes (MID) MID / Description / Old Text Message / New Text Message * 128 Engine # 1 ENGINE ENG 130 automatic transmission – † Trans 136 Anti-lock Brake System (ABS) TRCTR BRK Brake 140 Panel, Left INSTRCLST Instr 142 Panel, Right # 1 INSTRCLST MGMT 172 Diagnostic System DIAGNOSTC DIAG 179 Black Box LOG CMPTR CMPTR 181 Sep 3, 2014 · Cayl Bobtail Member 2 0 Feb 16, 2018 0 Hola Please you can help. Once you obtain the full fault code information, you can start troubleshooting that specific fault code or codes individually. I have a fault code ecu 128 Sid 004 fail 00. What is the ECU 128 Code on Freightliner Trucks? When you see the ECU 128 code on a Freightliner diagnostic scanner or dashboard, it typically points to a communication or hardware fault within the truck’s electronic control unit (ECU). Fault 1, diag 1, ECU128 typically indicates an engine control unit (ECU) communication or sensor issue triggered by cold temperatures. Code 128 SID 155 on a DD15 engine indicates a sensor or emission-related fault. I tried to do a little research and found a document but it doesn't really help me much. 40 psi at idle when engine is hot ? too high . Freightliner Columbia 60 Series ECU Code 128 SID 154 Fail 14 Issue Columbia 60 Series often faces ECU communication errors and intermittent sensor failures causing fault codes. Inspect the alternator’s white wiring harness for corrosion or loose terminals, which cause voltage drops when the engine is off but recover during cranking. But the bad news is if you have this code on the dashboard, it is certain that you have a fault code in the ECU. Hino and more Nov 22, 2023 · Learn what the ECU 128 code on Freightliner trucks means, its common causes, and how to fix engine issues effectively. ‪ Troubleshooting problems and Sep 3, 2014 · Check Engine Light came on with this d1AC Faule 1 Ecu 128 Sid 326 Fail 02 2010 Freightliner BCM2 106 With Cummings 6. Test the sensor voltage output with a multimeter to confirm malfunction. The J1587, J1708 & the J1939 system Diagnostic trouble codes ECU 128 on Freightliner trucks usually indicate an engine problem. " There are several supply circuits. Begin by inspecting wiring harnesses and connectors for damage or corrosion. It's important to check the EGR valve for proper operation and ensure it isn't sticking due to excessive soot or carbon buildup. Replace faulty sensors promptly to avoid poor fuel economy and increased emissions. A little background I'm new to trucking but I really enjoy it so I bought the truck. ECU 128 only identifies the module, it is not a fault code. Mechanic's Assistant: What’s the make, model, and year of your truck? Freightliner ECU 128 bossmantrk 1. I got ECU 128, SID 001, Fail 001. When the truck only runs in Override mode, it suggests the engine control unit is limiting normal operation to protect components. Oct 8, 2023 · What does the ECU 128 code indicate on your Freightliner? The ECU 128 code in Freightliners is similar to the check engine light. I'm getting a code of SYS 146 SID 001 FAIL 03. Jul 31, 2013 · ecu 128 sid 064 Fail 03 - Engine speed sensor Discussion in ' Freightliner Forum ' started by bbeethe, Jul 31, 2013. The ECU (Electronic Control Unit) is essentially the brain of the truck’s engine management system, monitoring various sensors and actuators to optimize performance and The ECU 128 SID 212 fail code typically indicates a sensor communication or signal fault. Jun 27, 2025 · The ECU 128 code on Freightliner trucks indicates a system fault within the electronic control unit but requires additional diagnostic information to identify the exact issue. These indicate regen system communication errors. Check engine light on Diag. When a 2009 Freightliner M2 starts then immediately shuts off, check the ECU codes (e. 7 and Allison Transmission. Along with that, 2009 Freightliner with Detroit Series 60: ECU 125 SID 147 Fail 14 Issue Intermittent check engine light and ECU fault codes often occur during cold starts or low battery voltage. This particular code indicates a problem related to the Engine Control Unit (ECU), specifically with the Sensor ID (SID) 54, which is associated with the engine I have a 2006 Freightliner M2 with Cat C7, I check fault codes today. Customer: 2003 freightliner fl 70 cat 3126 engine- fault code ecu 128 pid 105 fail 04 what does this mean and how can i correct it?? When a 2009 Freightliner Columbia with a Detroit 14 engine quits the regen process and won’t resume, check for ECU fault codes like 128 SID 155 or 332. ECU 128 Sid 013 Fmi. May 13, 2014 · Mercedes OM 460 2005 5MBXH12 8DJA Freightliner Century Class S/T Engine #1 - MBE Auxiliary PWM Driver #3 128 SID 59 FMI 5 Current Low - Open Status: Active Engine #1 - MBE Auxiliary PWM Driver #4 128 SID 60 FMI 5 Current Low - Open Status: Active Instr Outside Temp Short 140 171 38 Any ideas on any of these fault codes, I've done all the research I can on them and have had no luck whatsoever Have a ecu 128 fault and a bh 164 on my fl. Black smoke suggests incomplete combustion, possibly from fuel injector issues or turbocharger malfunction. Got a ecu 128 sid 027 fail 09 fault 1. Freightliner fault codes list. the check engine Freightliner Columbia 2009 DD15: Understanding ECU 128 SID 248 Fail 14 Code Columbia trucks often face engine sensor faults and intermittent communication errors with the ECM module. There is a code displayed on the windscreen on the right side of the windshield. I bought a ScanGauge which plugs in and let's me look at various engine info, like MPG Jan 10, 2024 · What does the Ecu 128 Code mean for freightliner owners? For identifying and tracking freightliner vehicles, the European Commission uses the ECU 128 Code. Diagnostic laptop with Freightliner, Detroit, & ABS software available for working on your truck! The fault code you mentioned, ECU 128 SID 248 Fail 14, is specific to certain vehicles and typically indicates an issue with the engine or related systems. Loosing ECU 128, Sid 059, fail 03, fault 1. Available for Volvo, Mack, Freightliner, Western Star, Peterbilt, Kenworth. Oct 16, 2012 · I bought this 05 Freightliner at an auction. Sep 3, 2014 · It means that the engine ECU has a code in it. Subscribe here for more trucking videos: https://w Sep 3, 2014 · It means that the engine ECU has a code in it. Because that block connects the Pedal/TPS/ECU to the ECM on the injector pump. ECU code 128 on the Freightliner Columbia 120 typically indicates alternator circuit faults. U28639. M2 Mercedes 12l. Although the engine runs fine, the check engine light remains due to stored fault data. This is specifically dealing with "circuit 1. Mechanic's Assistant: What is the complete model and serial number of your machine? Feb 1, 2025 · The ECU (Engine Control Unit) 128 code is a common diagnostic trouble code that can cause concern among truck and vehicle owners, particularly those operating Freightliner models. It is not a fault code on its own, however, it indicates that there is a problem with the engine which can easily be diagnosed with a scanner. This code suggests a problem with the oil pressure sensor or its wiring. Discover more answers Ecu 128 pid 111 fail 01?? Can someone please tell me what this I have a ford sterling with a fault ecu 128 pid 102 fail 03 what can you tell me? Thanks I have a 2001 FL70 with cummins. Begin by scanning the ECU with a compatible diagnostic tool to confirm the exact issue. The dash display will show the code "128," indicating there is an engine fault. What are common causes of ECU 128? Jan 7, 2022 · ECU 128, What are we dealing with? Fault Codes Conclusion 1. Start by inspecting the engine control module connections for corrosion or loose wiring. Have checked online The ECU 128 code appearing on the odometer typically indicates an electronic control unit communication fault. . ECU 128, Sid 059, fail 03, fault 1. Code 128 on a 2007 Freightliner’s ECU typically indicates a communication or sensor fault. ECU code 128 may appear on the display if the engine control system has detected a malfunction or error in the engine. Start by scanning the ECU for stored codes, inspect wiring harnesses for damage, and test sensors like the crankshaft position sensor. The Freightliner ECU 128 code generally refers to a communication or sensor fault within the ECU system. Only shows while running. Cummings 2008 Customer: 2008 freightliner columbia 120 ecu 128 sid 155 faiol 00 fault 1 Mechanic's Assistant: What's the make/model/year of your truck? Engine type? Customer: detroit 60 series 14L Mechanic's Assistant: Are you fixing your truck yourself? What have you tried so far? Customer: dpf park regen Mechanic's Assistant: Anything else you want the truck mechanic to know before I connect you? Customer Jul 2, 2013 · I am seeing fault codes ecu 128 and numbers a 545 137 on my dash. Nov 22, 2023 · The ECU 128 trouble code on Freightliner trucks typically indicates an engine problem. ECU 130 pertains to the transmission, indicating that the transmission TCU has a fault code logged. Just spent five thousand on this truck. The ECU is essentially the brain of your truck’s engine management system. I have a 2010 Freightliner Cascadia. Engine light comes on and off every few days Mar 10, 2017 · ECU 128, Fail 02, PID 051 as far as I know this fault code is related to throttle body . This code appears on the dashboard’s diagnostic readouts, alerting drivers and technicians to potential engine malfunctions. To understand what the ECU 128 code means, it is important to know what it is the ECU does. g. The ECU serves as your van’s electronic hub, and 128 indicates the module without specifying the issue. Understanding Freightliner’s Diagnostics System The Diagnostics Systems in Freightliner trucks function essentially as a watchdog for your vehicle’s performance. Freightliner chassis cummins front diesel drive. The ECU (Electronic Control Unit) is essentially the brain of the truck’s engine management system, monitoring various sensors and actuators to optimize performance and ECU 128 fault code on Freightliner Trucks Diagnostic trouble codes ECU 128 on Freightliner trucks usually indicate an engine problem. To simplify, the ECU 128 code alerts the driver of a problem in ECM or the communication between ECM and other vehicle systems. I have fault codes "cab 249" and "ecu 128" showing on the display. Here’s a breakdown of what each part of the fault code signifies: ECU 128: This indicates that the fault code is associated with the engine control unit (ECU) or engine system. 9 times out of 10 the issue with this fault code is the Exhaust Gas Pressure sensor. Trying to see what wrong with it. May 22, 2019 · Section 15. Jul 23, 2025 · For instance, ECU 128 code could mean a important engine fault when followed by a number like ‘pid 111’, specifying the problematic area. Understanding the implications of this code, its causes, and how to troubleshoot it is essential for Jan 30, 2025 · ECU 128 indicates that there is a fault detected by the engine control unit in various components of your Freightliner truck. Jan 19, 2008 · ECU 128 code Discussion in ' Freightliner Forum ' started by cuzzin it, Oct 10, 2012. Engine light comes on and off every few days Discover more answers I have a ford sterling with a fault ecu 128 pid 102 fail 03 what can you tell me? Thanks I have a CEL. The RPM drop and shutdown may stem from ECU fault code 128 SID 02 1 indicating sensor or communication failure. With a PTO. Start by inspecting the oxygen sensor wiring and connectors for damage or corrosion. I have a truck that does not accelerate ECU 128 PID 106 FAIL 04 FAULT 1 DIAG 1 is a freightliner columbia detroit 60 Truckfaults AppHave fault codes you need to clear? The OTR Reset Tool provides you the capability to get back on the road in less than 5 minutes. ‪ When the electronic engine control system detects a fault, it broadcasts a message on the datalink. It's throwing some codes. Jan 5, 2014 · ecu 128 and sid254 cascadia with cummins isx Discussion in ' Freightliner Forum ' started by swaranjitdhaliwal, Apr 28, 2015. I have determined that to be a coolant level code I have a 2001 FL70 with cummins. Find out what this code means and how to fix it in this video. Regularly check sensor harnesses and ensure the engine control module (ECM Discover more answers 05 Freightliner Columbia Detroit engine fault code ECU 128 545 146 What is a fault code: ecu 128 pd10 1 I have a 2007 Freightliner Columbia with a Fault code ECU 128 Read less The fault code ECU 128 SID 147 indicates an engine oil pressure sensor issue in the Detroit 60 Series 14L engine found in a 2006 Columbia Freightliner. It is a module identifier, referring to the ECU where the codes lie. Check the coolant temperature sensor and wiring harness for damage or corrosion. Anyone know what's going on? The Freightliner Electronic Control Unit (ECU), the "brain" of your truck, constantly monitors various systems. The computer in the truck reads the following codes: ECU 128, PID 073, FAIL 11, SID Discover more answers 2003 freightliner fl 70 cat 3126 engine- fault code ecu 128 Freightliner 2006 columbia is coming up with fault code ecm 2006 freightliner c15 active fault: eng sht hi 128 129 03 Mar 24, 2021 · 2006 allegro bay. I ran a diagnostics on my Freightliner Columbia with a Detroit Diesel Series 60 engine and the following came up from Mechanic's Assistant chat Customer: I performed a diagnostic check on my vehicle equipped with a specific engine, and the following errors appeared on the dashboard: Fail 01 SID 021 ECU 128 Fault 1. When the ECU detects an issue or a sensor malfunction, it triggers a diagnostic trouble code (DTC) to alert the driver or technician. It would seem a significant number of truck drivers experience this issue and I’m not sure what the code stands for. My truck is a 2007 Freightliner Columbia. Nov 2, 2024 · What does the Ecu 128 Code mean for freightliner owners? Freightliner vehicles are identified and tracked by the ECU 128 Code, which is issued by the European Commission. While a generic code 128 might indicate different issues across various vehicle manufacturers, its meaning within the Freightliner ecosystem is specific. Early detection of this fault code can prevent more severe engine problems by prompting immediate diagnostic procedures. This article delves into the intricacies of Freightliner Code 128 SID 147 FMI 11 indicates a sensor data fault in the Detroit Diesel DDC 6 ECU. Post exactly what is Found 4 result (s) for your search Understanding ECU 1 Fault Codes on a 2013 Freightliner with Detroit Engine Mechanic's Assistant chat Customer: What does a fault code of Ecu 1 on a 2013 Freightliner with a Detroit motor mean? Aug 22, 2013 · I had mechanic replace exhaust flex pipe off turbo on 2006 ftlnr col 14l det series 60 and next day when i started trk,I started rcvng ecu 128 pid 411 fault 04. When code 128 appears on the display, it means that the engine. This code indicates a potential issue within the engine management system, often related to sensors or wiring. 4. Showing fault 1 ecu 128 sid 030 fail 08 the problem we are having when pto is - Answered by a verified Technician What Is the ECU 128 Code on Freightliner? When your Freightliner’s onboard diagnostics system registers the ecu 128 code, it’s signaling a specific fault detected within the vehicle’s engine control or related systems. A freightliner vehicle can be identified by its 12-digit code. 1 Troubleshooting the Electronic Engine Control System Prior to performing troubleshooting tasks familiarize yourself with the found in the General Information Section. last six vin. What do you believe the issue Dec 21, 2022 · What does Ecu 128 Code On Freightliner mean and what to do to fix the problem? Mar 31, 2023 · You will find the complete list of Freightliner PID, MID, and SID fault codes to make your repair life simpler. It is because of this […] Customer: I have a Freightliner M2 with a Cummins engine showing fault code ECU 128. Jul 22, 2011 · Reset the ECM the went on a call & got 2 faults the 2nd one read ECU 128, SID 146, FAIL 07 ??? 2009 Freightliner M2 ECU Code P1D10151D328 Limp Mode Issue M2 trucks often face repeated limp mode activation and heavy-duty ECU fault codes under load conditions. Inspect ECU connectors for moisture or loose pins. Originally this came with a second code of ECU 128 PID 411 FAIL 04 and a Flash Code of 82. Freightliner systems typically reset after several successful regen cycles. Of my 2006 Freightliner Columbia 60 series 14L Detroit. after driving loaded when you stop movement and engine is idling the oil pressure will drop to about 16 and then slowly rise to 23-28 psi. The coolant temperature sensor can cause shutdowns if it sends incorrect data. Googled and response was egr. Diagnostic Trouble Codes (DTCs), like code 128, signal malfunctions. The codes are ABS 136 ECU 128 SID 146 Fail 07 SID 13 Fail 06 I shut the truck off and restarted it and this time only the first Discover more answers I have a ford sterling with a fault ecu 128 pid 102 fail 03 what can you tell me? Thanks 2005 Freightliner, MBE 4000 "Fault Codes" 1 fault with following on Display 545 146 51d 005 FAIL 05 What does this mean? What is the ECU 128 Code on Freightliner Trucks? When you see the ECU 128 code on a Freightliner diagnostic scanner or dashboard, it typically points to a communication or hardware fault within the truck’s electronic control unit (ECU). The 12-digit code on a freightliner vehicle identifies it. Battery disconnection resetting the Oct 4, 2009 · 04 Columbia ecu 128 Discussion in ' Freightliner Forum ' started by stlwaco, Oct 28, 2011. Do you have a Freightliner and saw an ECU 128 code? What exactly does this code mean? We are going to attempt to answer this question in this article. Fault code 128- 352 is "Sensor supply 1 circuit voltage below normal or shorted to low source"There are several sensors that share supply and return circuits to the ECM. Any break in that chain can cause ECU 128 and dead pedal. Code. It monitors various sensors and adjusts engine parameters to optimize It processes data from various sensors and controls fuel injection, emissions, idle speed, and more. Start by inspecting the crankshaft position sensor and camshaft position sensor, as these commonly trigger such errors. Freightliner Fault Code Ecu 128 Sid 54 freightliner fault code ecu 128 sid 54 is a diagnostic trouble code (DTC) that truck operators and maintenance technicians frequently encounter when troubleshooting Freightliner heavy-duty trucks. The ECU 125 SID 147 Fail 14 code indicates communication errors between the engine control unit and sensors. To diagnose fully, navigate your onboard display using the +/- buttons. Nothing just parked has Allison 4000 trainy with 2 + signs. 2009 freightliner cascades 125 with Cummins. Known as the engine computer or On Your Truck or car Freightliner Sprinter engine, ECU 128 is not a fault code; it refers you to the electronic control unit (ECU), where your actual fault code resides. foop liud fnyvx hkmbtvd hqun jixk ojx iujf rlzx zbkx qgd dcgruj exxes sxox otepn