Mack Vecu Problems, J3-17 (12V from Accessory Relay) to J3-18 (VECU g
Mack Vecu Problems, J3-17 (12V from Accessory Relay) to J3-18 (VECU ground) I measured 0 volts. All Volume PC 28 MACK SCHEMATIC PRODUCT SCHEMATICS 23086355 04 1 (2) 1 (108) WIRING DIAGRAM INDEX Hey everyone, I've got a truck I'm having some trouble with. This guide will explore frequent Mack engine failures, their causes, and practical solutions to keep your truck running at peak performance. If so thats a bad sign, water seems to so how get into the ECM when facing up. Advancements were made for the OBD2013 and newer Volvo and Mack vehicles that are using the 16 pin OBD diagnostic connector. But now my problem is 1st thing - the machine will not crank when I turn the key, after thinking for awhile I decided to flip the switch back to manual mode and then it cranked and started. If isolating the battery, starter solenoid, alternator, starter relay, EECU, and VECU does not cause the severe clean electrical power failure condition to disappear, then a conductor in one of the harnesses must be shorting low. Does anyone know what this code is "VECU 40 -4"? Does anyone have a good fuse panel diagram for this model? Runs great at idle, after driving for a couple mins it looses throttle control but stays running. If stop & kill the truck & wait for all the instruments to turn off then start back up the Speedo then works until it randomly does it again. I am having an issue with the Speedo randomly dropping out which cuts power. I have an 08 mp7 no start. 585000. I replace the battery starter I have a 2012 cxu613 mack with mp8 couple days ago engine starts randomly killing when slowing down or stopping some Intermittent stalling in the 2000 Mack RD688S can stem from faulty sensors or wiring faults affecting engine control. " If the vecu fails to respond or loses power, the engine will shut down. Battery voltage good, relay good, all ignition relays/fuses checked good. However I'm getting a mid 144 pid 200 fmi 9 in the VECU, ECU data "operation failed" Introduction Mack has determined that enhanced vehicle control strategies are needed for application specific needs. Electrical checks: 4. U could build air, push the yellow button in and while holding the brake put it in gear and move the truck. ’A CAVITY #30 BY AS EMBLY P ANT F17A6−0. It throws a 84-9 vehicle speed code. I think this is what makes my truck act like it has a mid fire and then smooths out after 30 miles of driving. 4. I can't find information to see if the VECU has power and ground to it. This is an issue because in canadian winter it becomes a Popsicles before it starts to warm up. Of course if that’s the case that likely would have comprised the vecu The normal operating temperature for Mack engines is 80 to 105° C (170–215° F). However, when I check J1939, I find SPN 4094 FMI 18 and SPN 5246 FMI 16. It is in dash (three connectors green, small green and blue). Does Tech Tool 2 read all three Data Links? Yes, Tech Tool is reading all three data links My Volvo D13 shuts off about 30 seconds after I start it. Looking for a wiring diagram for Mack VE electronic control unit? Find detailed diagrams and instructions on our site to assist with your truck's electrical issues. We drove to Georgia to pick them up and only brought one back. If Hi, Have a problem with when I start the truck in morning, the fan keeps going full speed and truck does not warm up even if I idle for half hour. Jan 12, 2019 · Start swapping relays between the tractors? I downloaded some drawings that Mackpro posted. Thanks If problems persist, inspect the Vehicle Electronic Control Unit (VECU) for faults, as it manages throttle signals and may require testing or replacement. is this correct? it has a brand new app assymbly Introduction Mack has determined that enhanced vehicle control strategies are needed for application specific needs. From what i can tell the VECU is the only "smart" hardware in the circuits for the functions that are failing. Disclaimer: This information is AI-generated and intended for general guidance only. Regarding your issue, the vehicle electronic control unit (vecu) is responsible for sending the signal to the engine to "wake up. The new VECU software will improve: PTO functionality, update certain parameters, enhance cruise control operation, and advanced DTC strategies. These conditions are programmable in the VECU and might include a maximum vehicle speed, park brake set or not, etc. In the ecu was a different vin# and it read e7-460. 2010 Mack Truck VECU Code MID 144 PSID 200 FMI 9 Explained Mack truck users often face sensor faults and communication errors causing engine performance issues. Uninstalled your Nexiq drivers and Go to Nexiq website and download the newest drivers . If the temperature remains below or exceeds the normal temperature range, the cooling sys-tem should be checked for problems by an authorized Mack Vehicle dealer. The truck ran pretty good Friday and turns out, that code was gone but came back again. Will this cause a no start? Has been a hard start for a couple days, now a no start. Well Mack is telling me the problem is the VECU module. The 16 pin OBD connector includes three data links. I have a 2011 Mack cxu613 w/MP7. Fault code 6-4 will set for some mismatches of VECU and EECU software levels. Typically, this problem arises from poor battery connections at the batteries, starter, or cab pass-through connections. Service Engineering has developed a diagnostic jumper harness that can isolate the cab, EPDM, and engine harnesses. First thing to check is see if the VECU ECM is faceing up where the connectors come in from the top. Hey everyone, I've got a truck I'm having some trouble with. I have replaced the VECU ( the one in the cab) and the "no signal to ecu " is gone on the monitor. This code setting condition is normal and the code will become inactive after the ignition key is cycled. Home Specific Topic Forums for Antique & Modern Trucks Engine and Transmission VECU Fault im working on and intermittent electrical issue. However I'm getting a mid 144 pid 200 fmi 9 in the VECU, ECU data "operation failed" Knowing how to identify and resolve common Mack engine problems is essential to avoiding costly repairs and downtime, whether due to high mileage, poor maintenance, or defective components. pegacloud. net/prweb/PRAuth/app/VolvoKM_/iNPUIKpeinqPJi2G0hH930k43USdE1gb*/!TABTHREAD3?pyActivity=%40basec 1/3 Fault code 6-4 will set for some mismatches of VECU and EECU software levels. All driving control switches and gas pedal are connectred to VECU. Thanks The normal operating temperature for Mack engines is 80 to 105° C (170–215° F). The next time u ma The Vehicle Electronic Control Unit (VECU), Engine Electronic Control Unit (EECU), and the Serial Communications Port connectors are the largest connectors in the system, and are where the majority of the V-MAC£ III system testing is performed. It has 3 push in wire connectors but places for four. There must be no grease on the power relay contacts; the black VECU connector (VJ3) and terminals are improperly assembled. Typically, this issue arises from a wiring problem inside the cab or a pin connection at the VECU or the TPS sensor itself. Each PTO can be in-dependently selected and controlled by separate speed settings as well as independent engagement and disengagement requirements. From the pins at the VECU, I got 164 ohms. This is a power up/down sequence problem that results from a defective VECU; greased power relay contacts can also result in a improper powering up sequence. Sep 20, 2010 · The VECU software will not match with the EECU software and will cause a 6-4 code unless the VECU is programmed with the software and datafile for the truck by a dealer. 2. What you want to look for is the Mack VECU ECM. Steeler, I have the save mistic electrical problem whit my GU713 Mack 2015, CA you please give me any lid how you fix the problem. The vehicle control unit (VECU ) / key switch might send power to the starter relay but the final decision is made by the engine ECM to ground and engage the starter Expand The old VMAC 3 software is getting harder to run as laptop operating systems are updating so fast now a days. inactive codes mid 128 sid230 fmi 5. If the temperature remains below or exceeds the normal temperature range, the cooling sys- tem should be checked for problems by an authorized Mack Vehicle dealer. Bundles shall be supported at 24 inches (600 mm) maximum intervals, a cable tie should be used between clip points on bundles with the exception of electrical wiring harness, which shall have a maximum support distance of 18 inches (450 mm) and a cable tie on bundles between clip points. When coolant temperature is excessive, the red STOP tell-tale illuminates and the buzzer will sound. Offenders will be held liable for payment of damages. 1. Missing VECU communication and intermittent data loss are common in Mack trucks' electronic systems. The VECU reads the cruise control stalk switch states, and commands the engine into PTO mode when conditions are right. Each PTO can be in- dependently selected and controlled by separate speed settings as well as independent engagement and disengagement requirements. vehicle warranty does not apply to any MACK vehicle that has been modified in any way, which in MACK's judgment might affect the vehicles stability or reliability. What is Premium Tech Tool 2 Premium Tech Tool 2 is the second generation of Premium Tech Tool. VECU Diagnostic Trouble Codes (Mack) - Free download as PDF File (. 2011 Mack CXU600 1M1AW02YXBM015137 Eaton 8 speed Customer states truck would intermittently not start, said driver could wiggle ECM connector and got For non-functioning dash gauges on a 2003 Mack CV713, start by verifying all ground wires are secure and corrosion-free. We had problems running Cummins Insite and the older VMAC 3 program on the same laptop because they both used the Nexiq interface. Note: Vehicles built on or after January 1, 2021 will have VECU5. the codes i get off the instrument cluster is a p091-04 m142. Once I drive for about 5 km's the fan disengage's. Blink code 6-4 will also set while the VECU is in the programming mode for Customer Data, Fleet Data, or Mack Data. Ecm is sending voltage to relay. The VECU and ECM are dependent on each other to perform their specific control functions. has brand new speed 2012 mack cxu613 when I plug my scanner up I got on the vecu volvo/mack no codes then I went to j1939 in got spn 4094 Mechanic's Assistant chat Customer: I have a 2012 Mack CXU613. It The Mack VECU allows for up to 4 PTO speed controls plus the PTO (EHT) without the use of a BBM. about 2 times a day it will lose all throttle response and a lighning bolt coms up on the dash. Hears my update. Check pin connections at the instrument cluster for damage or looseness. 8 F17A17−0. Electrical Problem and Starting Problem By Richardsmack March 22, 2023 in Electrical, Electronics and Lighting https://volvo-trkna-prod1. There is VECU located in cab. 8 SPF17A16 CB7−0. The descriptions and service procedures contained in this manual are based on designs and methods studies carried out up to January 2010. After they installed the software on the laptop and with help from mack support (3 hours later) they were able to read the ecu and the vecu. A troubleshooting guide is available that includes the pin locations and necessary resistance readings, which can be found here. Thanks in advance The normal operating temperature for Mack engines is 80 to 105° C (170–215° F). It is the same like in Volvo and Renault trucks. Hello mr. When I connect my scanner, I see no codes on the VECU for Volvo/Mack. I've encountered faulty VECU modules causing this as well. Is the VECU calling for the engine brake? View and Download MACK 2007 Emissions instruction manual online. Pulled VECU from passenger side dash panel and ohmed out J2 PLUG J2-11 and J2-12 for the speed sensor. VECU controls engine ECM mounted on engine via J1939 (+1708 as . Since JPRO connects but PTT does not, verify the cab computer’s CAN bus wiring and connectors for corrosion or damage. 2009 Mack randomly shutting down. To deliver these improvements new VECU Software has been released and made available. Has anyone ever had any issues with the M Drive? He is my situation, we bought 2 2013's off of Iron Planet. Knowing how to identify and resolve common Mack engine problems is essential to avoiding costly repairs and downtime, whether due to high mileage, poor maintenance, or defective components. In addition to switch and sensor data, the broadcast of data between modules also includes various calculations and conclusions that each module has developed, based on the input information it has received. This manual contains information about the design and function of the Vehicle Control Unit (VECU). Anyone know where this is on a CXU613 ???? Would like to check it myself to see if perhaps a wire is burnt going into it. Mack Truck Vehicle Electronic Control Unit (MID 144), Diagnostic Trouble Code (DTC), Guide. pdf) or read online for free. View and Download MACK V-MAC IV instruction manual online. When air and electrical lines are bundled together, the commodity with the greater cross-sectional area may Please be advised that the Mack Trucks, Inc. It is Vehicle control unit. I've had the injector code before but it still runs, poorly bu If isolating the battery, starter solenoid, alternator, starter relay, EECU, and VECU does not cause the severe clean electrical power failure condition to disappear, then a conductor in one of the harnesses must be shorting low. Monitor switch status. 2013 Volvo with a Volvo motor. For advice specific to your situation, please consult a verified expert on JustAnswer before making decisions. It’s running very good suddenly Mechanic's Assistant chat Customer: My car has an electronic issue with mid 144 PSID230FM5. Also has a #4 injector code for mech failure. Mack CH613 VECU faulty no start working outside is cold #mechaniclife #canadalife Alan Apo 334 subscribers Subscribe CRUISE CONTROL TERMINAL TO BE INSERT D INTO VECU ON . from my research this is app low voltage. J1939, J1587 and ISO14229. According to the Mack help line, this is saying "Sensor Power Supply is showing low voltage" so I ask my truck experts, where do I look. A sub-function of the 'wired' PTOs in the VECU is the ability to activate PTO "outputs". Use a diagnostic scanner to check for fault codes indicating communication errors. 2010 cxu613, dash lights up but won't crank. Checked power to VECU at J3 plug. Begin by inspecting the Vehicle Electronic Control Unit (VECU) connectors for corrosion or loose pins. Does anyone know what this fault is? MID 144 PSID 247 FMI 14 on 2020 Mack granite with MP8 engine, my engine brake doesn’t seem to be working like it should was wondering if this is associated with that fault. 8 F17E1−0. 8 Control unit, VECU (Vehicle ECU) SU PENSIO B:17 SERVICE PEDAL OUTP THROT LE BRAKE CUM INS AIR SUP LY IVS AN LOG PEDAL CLUTCH IVS/FORWA D 3 1 GND SUP LY 1 DIF LOCK A:5 A:8 B:19 A:23 B:22 B:8 B:10 A:10 B:16 Hello 2012 Mack got the same like Volvo ECMs. I now VECU controls vehicle speed. When it shuts down the ABS throws a code for no communication with ECM, ECM is getting voltage but not communicating. The VECU code MID 144 PSID 200 FMI 9 indicates a fault in the air pressure sensor circuit, often related to the primary sensor or wiring. Service manual for Mack truck Vehicle Electronic Control Unit (VECU) MID 144. Can you tell me what the problem might be? Mechanic's Assistant: What’s the year and model of your Volvo? Customer: It's a D132013. If you cycle the key a few times the ABS light goes away Wondering if anyone else has had this problem? I am thinking it is either an issue with Does anyone know what this fault is? MID 144 PSID 247 FMI 14 on 2020 Mack granite with MP8 engine, my engine brake doesn’t seem to be working like it should was wondering if this is associated with that fault. Its a thin black plastic rectangular ECM . The fault light does not come on. 1. 2. The Mack VECU allows for up to 4 PTO speed controls plus the PTO (EHT) without the use of a BBM. Using J3-16 (12V from battery) to J3-18 (VECU ground) I got 13V (battery voltage). It have electronic problem mid 144 psid230fm5 cam u tell me problem?? D132013. Includes fault tracing, DTC definitions, and troubleshooting tips. followed diagnostics out to a bad vecu. k3f9s, gl4uz, cp5jvf, dvdez, bphzr, k355wf, d39vrk, zmww, amfq, ieojj,