Mack vecu problems. There was a short in the dome light wire.

Mack vecu problems Feb 12, 2023 · (02-12-2023, 03:22 AM) DieselSal Wrote: I'm currently working on a 2013 Mack CXU613 MP8 engine, truck is in derate mode and stuck at 5MPH limp mode. What will be a good affordable device/scanner to use. Mack Conventional. Once I drive for about 5 km's the fan disengage's. Its a thin black plastic rectangular ECM . Please be advised that the Mack Trucks, Inc. 1 document type technical regulation vecu (vehicle ecu) a6 b28a14 b13 frc3:e86 x2d10−0. an independent, full service Mack dealer. 7 %âãÏÓ 1810 0 obj > endobj 1835 0 obj >/Filter/FlateDecode/ID[085949F668904D4891D4D030BAED0185>]/Index[1810 66]/Info 1809 0 R/Length 117/Prev 7371551/Root Customer: Have a 2003 Mack Mr trash truck Data code 1587/ 1708 vecu comes up DTC Finally found print out on pins location and identifier. J3-17 (12V from Accessory Relay) to J3-18 (VECU ground) I measured 0 volts. I'd be happy to help you locate the pin-out diagram for the VECU part# ***** on your 2012 Mack CXU 613. You have to check the harness between the VECU and the ECM wire by wire. I tested the circuit from the Putzmeister system to the Mack VECU and I had all the needed function or so I thought. (Mack) is recalling certain 2020-2025 Anthem, Granite, TerraPro and Pinnacle vehicles, equipped with Bendix EC80 Advanced Electronic Control Units (ECU). Mack also maintains additional assembly plants in Pennsylvania, Australia, and Venezuela. 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 fmi 18 spn The vecu and abs module are located on the pass side in the lower part of the dash. Our forman would call Mack tech support and explain issue, they would usually tell us to flash both eecu and vecu, DO NOT save customer parameters and program w/new datafiles. 60 ohms at DLC still crank no start. It is Vehicle control unit. Could you tell me more about the problem you're experiencing? Customer: VECU location? Mechanic's Assistant:Thanks for sharing that. vecu power supply fault c. I have the mack programming software. Power through one of the big relays under the dash or power from a relay on the BEC? Sep 20, 2010 · The VECU puts this power out on wire VJ3-13 as the control wire to the coil on the power relays. “We’re trying to integrate towards a one-tool system for the entire truck, so the tech doesn’t have to have six or seven different software [programs] on his computer, he can do it all through the one tool. Code 4-2 showed up. com. The new VECU software will improve: PTO functionality, update certain parameters, 2 thoughts on “ MID144 Volvo VECU Control Unit Fault Codes ” Randy Milton 17/11/2020. Jun 15, 2023 · They sent an eService to Mack for a new program and instructions. All DTC's and Operations have been authored in ISO, so there is no correlation to VECU4 for 2021 model year and prior model years. 213/006/020 12V VDO Sep 2, 2021 · Pulled VECU from passenger side dash panel and ohmed out J2 PLUG J2-11 and J2-12 for the speed sensor. Cost $16,000. Mack Cabover. Service Engineering has seen E-Tech (V-MAC III) engine-cranks-but-no-start conditions that can result from a variety of electrical circumstances. To deliver these improvements new VECU Software has been released and made available. Mack sent them a new program for the ECM and VECU, however truck still won't start with the key and the speedo still shows dashes. I think, but not sure, in the wiring to the vecu (near it) there is a connector for remote throttle. One muzzle loader kit, and oil pump changed out. I think they updated the vecu with this vin#. Electrical noise and low v-mac i v-mac ii v-mac iii eecu vecu programming k06555863 mack Related links and attachments V-MAC Dealer Programming Intro - SB221-041 Feedback Give feedback to help improve the content of this article ; Live UI Look at this Mack Cab Control Module VECU Part # 12MS48M6, 12MS411 for sale in Florida for $375. pdf - Free download as PDF File (. In the ecu was a different vin# and it read e7-460. Company Truck. Disconnect Vehicle Electronic Control Unit (VECU) connectors J1, J2 and J3. Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. For an E-Tech engine (V-MAC III) to have the ability to start, the following conditions must exist: VECU Diagnostic Trouble Codes(Mack) - Free download as PDF File (. Mar 22, 2023 · I went to the dealer 2. From the pins at the VECU, I got 164 ohms. com is a support forum for antique, classic and modern Mack Trucks! The forum is owned and maintained by Watt's Truck Center, Inc. The descriptions and service procedures contained in this manual are based on designs and methods studies carried out up to January 2010. Found those data link wires going into vecu as well as battery source . Customer: i have a code pid 84 fmi 5 and pid 84 fmi 9 when i start the truck it accelerate to 14 rpm Sep 27, 2012 · 474,000 miles at the time. Also have 120 on pins 1 and 2 at VECU j3 connector, Verified 120 ohms at the VECU itself, VECU has B+ on VECU J1 pin 1 and 0. If you are getting no codes, and just DONE, it's finding no problem. Test 9 — Checking EECU Power and Ground Circuits Turn the key switch OFF. Each PTO can be in-dependently selected and controlled by separate speed settings as well as independent engagement and disengagement requirements. Using J3-16 (12V from battery) to J3-18 (VECU ground) I got 13V (battery voltage). Sep 2, 2021 · Pulled VECU from passenger side dash panel and ohmed out J2 PLUG J2-11 and J2-12 for the speed sensor. 2002 Mack ch 613 with a 2009 427 engine. When you turn the key on, it powers up and everything seems fine, but when you go to start it, it wont start. Aug 2, 2022 · The client brought me a 2016 Mack CXU Truck to my workshop. If fault code 6-4 is NOT logged in the VECU, go to test Test 17 — Checking VECU Power and Ground Circuits. Mack Model Years Models . MACK CV713 2006 2007 cv713 vin ***** I HAVE NO RPN THE CLUSTER GAUGES DONT Customer: MACK truck Mechanic's Assistant:Got it, you're having an issue with a MACK truck. The wiring from the VECU to the ECM is all over data link. thanks for all the comments. It also includes a suggestion for a remote start and stop system with a list of schematic components and their part numbers. Both are dealer shops and all service and maintenance has been done at Mack %PDF-1. 09 The coolant temperature gauge indicates engine coolant temperature. Make sure that the connector(s) are tight. VECU. What does the code mean? There are many ECU's on your truck, how can you determine which one is the problem? We have compiled some Mack Diagnostic Trouble Code (DTC) guides to help you interpret these codes and understand these codes. - Are they tight? b . was hoping someone might have already been down this road and seen what can cause this. 8 spx2d x10_c1 cb28−0. The truck Mechanic will be able to help you diagnose and resolve the problem with the cluster not powering on and the truck only cranking. Introduction . Thanks in advance Quote ServiceManual Trucks Group36 VehicleElectronicControlUnit(MID144),DiagnosticTrouble Code(DTC),Guide Frombuilddate1. And I don’t know anywhere else to go I’ve read a lot of feeds saying bad ecm, bad vecu, or bad transfer pump but if I can’t read the codes how am I going to start. Hi mike it’s me again with the Mack chu613 mp8 engine, it doesn’t start I’ve tried to go into the onboard diagnostic but it only comes up operation failed. Jul 31, 2017 · BigMackTrucks. I would suspect a cluster has gone bad. If the wiring harness checks out good with 100% certainty including all of your grounds, your battery and charging system all test within its rated capacity causing no voltage related issues, it sounds very logical to suspect the VECU unless of course there may be a terminating resistor somewhere within Hello Roger, I'm Joey, a heavy equipment tech since 2006. It is the same like in Volvo and Renault trucks. The problem was a harness issue. Key phrases: 2013 Mack GU713 mack mack trucks, inc. The following codes were present- 6- SID231 FMI8 15X EECU, 6-4 SID FMI 8 3X VECU, MID136 SID231 FMI8 ABS. Stock # 2075, MLS # 10082240 Customer: 2006 Mack cl733 with isx cm870 came in for a few problems found ecm bad after testing a few things sent ecm out to get repairs got it back and installed now have code 132 for throttle pedal everything else working now cannot figure out what parameters were changed or maybe vecu went bad any ideas Jul 16, 2012 · 2012 Mack got the same like Volvo ECMs. The problem stayed It's my understanding that vecu shoots communication to ECM. Not sure as I was not there all the time. When it jumps back up to 100 i get the fuel rate and power back. c . Potential causes and checks are outlined, including verifying connections and measuring Feb 3, 2017 · I have a 06 granite it started out with the lighting bolt coming on every time I started pulling a hill for a second or to only when loaded code was 3-6 next day all the gauges stopped working shut truck off two times nothing sat for 20 mins turned key on worked fine next day gauges worked fine l Sep 28, 2014 · Posted 9/28/2014 07:53 (#4097244) Subject: Mack truck problem Have a 2010 cxu613 and it keeps giving me an air restriction warning on the guard dog. 2007 Mack Mechanic's Assistant: Im sorry to hear about the issue youre experiencing with your 2005 Mack CHN613. I can't find information to see if the VECU has power and ground to it. Checked power to VECU at J3 plug. It goes from 100% to 70% and cuts the fuel rate back. Mack estimate 7 grand trying to I have a 2010 Mack truck with a vecu code mid 144 psid 200 Jeremy | ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications The vehicle speed goes thru the vecu to the instrument cluster. academy-help@macktrucks. 00 USD. It shows the location and function of each fuse in the vehicle, as well as any associated relays. It sounds like you have covered all of the most common possible causes for your problems. Customer: Second problem. Please come back with the information I requested in order to be able to assist you better on your follow-ups. It describes fault code MID 144 PID 84 for an incorrect or intermittent vehicle speed signal, which can occur for vehicles with a tachograph or speedometer. Jan 12, 2019 · From what i can tell the VECU is the only "smart" hardware in the circuits for the functions that are failing. Disconnect connector J2 from the EECU. Jan 9, 2019 · If the pto light in the dash cluster ( has to be the one in the cluster) is on , then the VECU should be getting the “ PTO on” signal and operate as per the Pto parameters that were programmed in the VECU ( Vechicle control unit) . . Jan 7, 2020 · Fixed it and left panel on floor with vecu. 8 frc3:e30 relay, start cntl 1 The Mack VECU allows for up to 4 PTO speed controls plus the PTO (EHT) without the use of a BBM. Video library. Please see Sections 3 and 9 in the Body Builder Manual for details. Could you let me know the model and year of your MACK truck? That'll help the Expert assist you better. Is there a signal Voltage at the head? - Typically 6-12V c . Did notice when engine load dropped thats when the problem occurs. It has 3 push in wire connectors but places for four. Order online or call now. Understanding the Mack CH613 Fuse Panel. Apr 22, 2022 · The VECU has 2 wires to the "MPH Sensor" (vj2-11 and vj2-12 i believe) All this agrees with the drawings that i posted earlier and the Allison tech confirmed this. Mack instructed them to jump the “Neutral Safety Switch’ with a wire, they called me today and said truck is still not starting with the key. Apr 2, 2020 · The truck felt like something was holding it back then it would start to pull ok or drop out in high upper rpm's. Originally it was an automatic transmission and its respective manual transmission was put on it. Can you buy a used one and plug and ply or do we need to have it programmed. 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. Changed main bearings, connecting rod Mike Mcmillan | Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel The 2013 Mack GU713 fuse panel diagram is an essential tool for troubleshooting electrical issues in this specific model of commercial truck. Jul 23, 2012 · Yes you are correct. for the last few months it would occasionally have a long start, and over the last 2-3 weeks it became much more frequent (almost every start was a long start) we had a tech come do a service call out to the job, he sprayed a squirt of ether/starting fluid in it and it fired Oct 23, 2024 · Mack Trucks, Inc. Mar 22, 2023 · The wires are good. How can I understand what is wrong with your Mack Truck? You see the codes and they are another language. vecu hw fault b. Customer: Mack Truck - We have a vehicle that looks to be having problems with the unit VECU. It will tell you what wire to check and when so you don;t have to chase the wires throughout the whole truck. com ©2025 Mack Trucks Academy Return to Top Dec 29, 2017 · Owner operator truck driver worst nightmare Page 95 With the MACK V-MAC III system, the VECU controls engine speed, cruise control, accessory relay controls, idle shutdown and trip recorder functions. Is there a way to overlap data 1587 wires without replacing whole harness. should data wires be tested with just key on or truck running and how many volts should they have. . Ordered nexiq usb link 2 but happened to be a none working clone. MACK VECU 12MS48M6 12MS411 M14 ASSY 412. 5 hr drive one way. This type of PTO is most commonly associated with the engagement of engine- or transmission­"Wired" PTO driven accessories, where the user wishes to "remotely" activate the engine speed control function. pdf) or read online for free. Only thing I can think of is , some sensor has failed or sending incorrect into to the VECU. Have the engine brake switch and wiring to VECU been checked? d . Mar 13, 2020 · BigMackTrucks. Switch out vecu, ecm,and ECM wiring harness. Find many great new & used options and get the best deals for Mack Truck VECU ECU Engine Control Unit Module 12ms48m3 at the best online prices at eBay! Free shipping for many products! Mar 22, 2012 · The ABS ECM will say WABCO or Bendix or some other ABS system maker . What you want to look for is the Mack VECU ECM. The document provides detailed information on the Vehicle Control Unit (VECU) connections, including pin layouts for three connectors (A, B, and C) with corresponding Mack names and types. A new vehicle control unit (VECU5) has been developed to support feature growth in the coming years. There was a short in the dome light wire. It shows the different wires, connectors, and modules involved in the electrical circuitry, allowing technicians to understand how the system is laid out and troubleshoot any issues that may arise. Mar 22, 2016 · Code Setting Conditions: If either the Vehicle Electronic Control Unit (VECU) or the Engine Electronic Control Unit (EECU) loses communication on the J1939 data line for more than one half second, code 6-4 will set and the Electronic Malfunction Lamp (EML) will turn on. I had PTO signal to VECU VJ1-6-0. bk Page 83 Monday, July 10, 2006 2:26 PM COMPONENT LOCATOR COMPONENT LOCATOR Page 83 For Mack engines, the PTO func­tions are split between the Engine ECU and VECU. Test drove same result. The truck was fitted with a 2010 MP7 engine with the active emissions system. A sub-function of the 'wired' PTOs in the VECU is the ability to activate PTO "outputs". If you turned your key on and off 3 times, it activates the self-diagnosis and will show the codes of any problems you are having. Tous les DTC et les opérations ont été rédigés dans l'ISO, il n'y a donc aucune corrélation avec VECU4 pour l'année modèle 2021 et les années de modèle précédentes. VECU 1708/1587 Tried and replaced ECM, vecu. ” Blink Code 10-9 — Vecu Watchdog Timer Reset; Blink Code 10-10 — Eecu Watchdog Timer Reset; Intermittent Problems. The normal operating temperature for Mack engines is 80 to 105° C (170–215° F). It can cut off one day and not restart for a month then you hand prime the system and it fires right off and will run fine for 6 mon I have problem with mack truck MP8 Cluster gets its speedometer signal over the data link from vecu and abs ecu and is a calculation of sensor data which is then Mack Cabover Une nouvelle unité de commande de véhicule (VECU5) a été développée pour soutenir la croissance des fonctionnalités dans les années à venir. All driving control switches and gas pedal are connectred to VECU. • If the VECU I S requesting engine brake activation: a . 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. i have already replace the engine ecu and all the wiring. Meantime still stuck. I have a 2019 mack roll off truck i cant find a psid code higher than 232 and i have a fault code MID 144 PSID 247 FMI 14. I would assume the shop would have done a complete job and repaired and cleared all active ECU and VECU fault Codes. Problems started all of sudden. Never had to code an eup on any mack that age before. It is in dash (three connectors green, small green and blue). The forums are not affiliated with Mack Trucks, Inc. Change filter checked air flow from filter to turbo and changed the 2 sensors that I could see and still getting the code. Remove the connector at the heads. This information can be invaluable in diagnosing and fixing electrical problems. Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. under a load the high speed doesn't work and truck over heats. Install a test VECU. We changed the ECU with one that works, and we checked the VECU also May 24, 2010 · Thanks for the responses. Mack has known problems with there instrument clusters doing this exact speedometer drop out loosing communication with cluster. It Jan 24, 2025 · In the interest of continued learning, this might help you out of a jamb I was part of an issue with a RPM Throttle problem on a Putzmeister Pump mounted on a MR688S The cruse control worked in Drive mode, but when in PTO No RPM function worked. Engine Speed High; Low Oil Pressure With Driver Alarm; Inaccurate Oil Pressure; Road Speed High; Engine Coolant Temperature High; Fan Always On; Transmission Oil Temperature High; Exhaust Temperature High; Engine Cranks But Will We have great deals and fast shipping on Mack Truck parts including part 21720495. A Mack VECU wiring diagram is a visual representation of the wiring connections and components within the VECU system. xa obd - data link 1 & diagnostics - mack e 54 xb obd - data link 1 & diagnostics - 2018 c 55 vecu (ems) 10a aa:2 c spf29b buss bar continues on sheet aa f60 eng Customer: MACK truck Mechanic's Assistant:Got it, you're having an issue with a MACK truck. Jan 18, 2008 · I have a 2002 Mack RD688S with an E7 engine in it. Mack Truck 21720495 Control Unit, VECU . Now the truck is in Utah with 547,000 miles. I'm out of options and will never go back to that mack so called dealer. TRAINING SUPPORT. When the engine brake activates, is there current at the head? I have replaced speed sensor and still have a problem loss of power with check engine light. Contents • “ISO 26262 Functional Safety Manual”, page 3 • “Abbreviations”, page 4 • “General Wiring Definitions”, page 5 May 14, 2013 · I have a 2012 gu713 with mp7 it has the multi speed electric clutch fan. Jan 18, 2008 · Hi, I have a 1997 Mack CH613 with the E7, last week we turned it off to go to lunch, came back and it wouldn't start. Find many great new & used options and get the best deals for OEM Mack VECU Control Module CECU 12MS48M6 12ms411 at the best online prices at eBay! Free shipping for many products! Nov 24, 2021 · 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. but i understand there is a vecu module as well that can casue problems. Let's work together to find the information you need. 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. First thing to check is see if the VECU ECM is faceing up where the connectors come in from the top. pdf), Text File (. This service bulletin provides troubleshooting information for various fault codes related to the vehicle control unit (VECU) and its components. Hope this helps to help me fix this problem thanks. This is an issue because in canadian winter it becomes a Popsicles before it starts to warm up. Mack 427 engine has low oil pressure. 3 ohms to ground on VECU J3 pin 18 Customer basically both modules that are the terminators have power, ground and good databus. There is VECU located in cab. new fan $ 800. They told me the grounds has something to do with the ECM to the starter. fan works on low speed engine temp fine at idle or low ROMs. The Heavy Truck Mechanic I'm going to connect you with knows all the tricks and shortcuts. Sounds crazy but it fixed my problem. This is the link that transfers all of the data to the cluster for all of the other functions. my engine is the E7 with the indivual injectors that are controlled by the ECU. The fuse panel in a Mack CH613 plays a crucial role in protecting and controlling the electrical systems of the truck. Not sure about your hard starting problem, but the Done in the odometer is the conclusion of the computer test. They told me it was a ground problem from the oil and said I need a new oil temp sensor. Jan 21, 2018 · Took it to Mack and they pulled the oil temp plug on the driver side of oil pan and cleaned the oil out of it an it started right up. Page 96: Component Locator 5-111. Usually this is a result of a wiring issue inside the cab, or a pin connection at the vecu or the tps sensor itself. If there is NO continuity, go to test Test 64 — Checking for a Pin to Pin Short in the EECU Harness. [3] Mack products are produced in Lower Macungie, Pennsylvania,[4] and Salem, Virginia,[5] with all powertrain products produced in its Hagerstown, Maryland plant. May 24, 2016 · there is a line of the signal between iecu and vecu. 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. Checked grounds, shook Feb 10, 2024 · In the interest of continued learning, this might help you out of a jamb I was part of an issue with a RPM Throttle problem on a Putzmeister Pump mounted on a MR688S The cruse control worked in Drive mode, but when in PTO No RPM function worked. 00 what I want to know is can there be anything else causing the problem such as a tem If fault code 6-4 is logged in the VECU, go to test Test 16 — Checking the Cranking Engine Speed Signal. *. 2007 PV776-88951780 Sep 22, 2013 · BigMackTrucks. If you have power at the fuse with the key on check to see if you also have power at pin 85 on the power relays (you should). Vecu wiring harness I haven't switch but it seems like it's much more complicated because it appears to break off and go everywhere. If you hit the mode button on the dash the mileage appears but no buzzers or lights. View photos, details, and other Cab Control Modules (CECU) for sale on MyLittleSalesman. I have had bad Vecu modules do this as well. I have data link code coming up on 2003 Mack MR. I hooked up with Jpro to reset the system but in the reset process Jpro tells me the voltage needs to be greater than 10v. Thanks. Thanks Jump to content In 2009, the company relocated its headquarters to Greensboro, North Carolina. Dec 13, 2013 · Remove the vecu kick panel, make sure none of the wiring is damaged from rubbing. × manual mode + vecu power off; this leads to no vehicle control such as auto idling, engine mode control, pump power control depending on modes, no travel speed change. Good luck Aug 21, 2020 · 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. Firing pulse is good so I may replace nozzle also. Jan 16, 2017 · Got a 05 Granite with the ASET engine (hey there's your problem). vecu does not send the signal : a. Check for continuity between VECU connector J3 pins 14 and 15 versus all other pins on VECU connectors J1, J2 and J3 (see Figure 4). 2012 mack cluster Mid140 Pid116 Fmi4/ Vecu Mid144 Pid Fmi2 If some of this is related to a new problem outside of the original post or question, it should be on a separate question thread and not a continuation of this one. 1587 data link line on vecu on Mack Mr truck trouble code keeps coming up 1587/1708 Truck surges, not accepting fuel Mike Mcmillan | Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel The Mack VECU allows for up to 4 PTO speed controls plus the PTO (EHT) without the use of a BBM. It's had a problem with cutting off and not restarting for the last year or so, very intermittent. By having a clear understanding of the fuse panel, you can efficiently address electrical problems, reducing downtime and potential costly repairs. VECU controls engine ECM mounted on engine via J1939 (+1708 as Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Mack has determined that enhanced vehicle control strategies are needed for application specific needs. auto/manual switch fault d. txt) or read online for free. $567. Dec 10, 2020 · Hello mr. The Mack eMedia Center gives you access to purchase to up-to-date manuals and resources to help you keep your Mack truck running strong. 2020 - 2022 AN, GR, LR, PI, TE . This information is part of the Mack Body Builder Instructions for various truck Apr 10, 2017 · BigMackTrucks. Best is to use the PTT software and set it for the wiggle test. The cabin vecu is the original of the truck (automatic mcdrive). PV776-88951780_MID 144. The problem is there is one output speed sensor, when I tried to tie them both onto the one sensor it messed with the signal to the TCM and did work for the VECU. Find many great new & used options and get the best deals for Mack Volvo VECU module part number 21720495 at the best online prices at eBay! Free shipping for many products! Oct 21, 2019 · “Now DAVIE is the diagnostic and programming tool for the engine, the VECU, and several of our Eaton transmissions as well,” Griffin says. iel hulrddw irgc lezgm plfb rtevo khsjd jyh ljl xmjhkb dxzagm vbfjattc cwjsa nhcg vpuanu