2025 New , ANCEL HD3400 PRO PRO Heavy Duty Truck Scanner with DPF Reset / DPF Regen & Oil maintenance service light reset, Fit for Cummins, Paccar, Caterpillar, Detroit, HD Volvo,Mack,International/Maxxforce, Isuzu,Fuso,Hino; Free Update for life !
Ancel HD3400 PRO Features
Ø Diagnose heavy duty trucks in compliance with ALL standard protocols ( J1587, J1939 and J1708) , and Last Private Protocols ;
Ø OEM-Level Full System Diagnosis
Ø DPF (Diesel Particulate Filter) Complete function- Identify DPF fault codes ,Including DPF/DPD regeneration, DPF reset, BlueTec, DPF related information reset, DPR state reset, forced DPR regeneration, etc.
Ø Full OBD2 Function --Support all OBDII cars ,includes passenger cars, mini vans and light duty vehicles – American (after 1996 , European after 2002 ,and Asian after 2003 )
Ø Uniquely featured with battery power monitor function
Ø Troubleshooting tips guide technicians to the root of problems faster, saving diagnosis and repair time
Ø Read and erase generic codes (P0, P2, P3 and U0), manufacturer specific codes(P1, P3 and U1), and pending codes
Ø Easily determine the cause of the Check Engine Light(MIL) and turn off Check Engine Light (MIL), clear troubles codes and reset monitors
Ø Display DTC definition, freeze frame data, I/M readiness status (emissions) and vehicle information (VIN, CIN and CVN)
Ø Read, store and playback live O2 sensor test data
Ø Read PCM live data stream with graphic data Display
Ø Enhanced OBDII Mode 6
Ø Multilingual menu and DTC definitions – English, Spanish
Ø Lifetime Free update , no extra cost !
Product Model | HD3400 | HD3400 PRO |
Coverage | Cummins, Detroit, Caterpillar, Paccar | Freightliner, Peterbilt, Kenworth, HD Volvo, Mack, International, Western Star; |
OBDII & HD OBD | √ | √ |
Read/Clear DTC, Read Data Stream/Vehicle Information | √ | √ |
DPF Regen | Cummins, Detroit, Caterpillar, Paccar | Cummins, Paccar, Caterpillar, Detroit, HD Volvo,Mack,International/Maxxforce, Isuzu,Fuso,Hino; |
Service Reset | X | Isuzu, Fuso, Hino |
Other Special Functions | X | X |
Screen Size | 5" LCD | 5" LCD |
Resolution Ratio | 800*480 | 800*480 |
RAM | 1GB | 1GB |
Flash | 8GB | 8GB |
SD Card | X | 8GB |
Battery | X | X |
Wifi | √ | √ |
Cable& Connector | Main Cable, Diesel 6/9, CAT-9 |
HDOBD Diesel Heavy Duty Truck Features
① HD OBD/Diesel OBD: Diesel standard OBD;
② Protocol: J1587, J1708, J1939, ISO27145 (latest);
③ Commercial vehicles ( 24V): trucks, buses, construction machinery, agricultural machinery, cement trucks, garbage trucks, fire engines, yachts, etc.;
ANCEL HD3400 PRO diesel truck scanner support do OEM -level full system diagnostic for the most common engine brands in the US diesel market: Cummins, CAT, Detroit, Paccar. It can detect car Engine, Transmission, ABS, SRS, Throttle, ESP, TPMS, EVAP, fuel system, Emission system, and etc.
ANCEL HD3400 PRO support Cummins, CAT, Detroit, and Paccar enginesto reading/clearing codes, reading data streams, and reading ECU information, show live data in graph such as Engine Speed, ECU’s temperature and coolant temperatures (live data can be store and playback), but also supports the DPF function.
- Fit for Cummins Engine : International LT/HX Series, Freightliner, Kenworth, Western Star, Autocar, Peterbilt, Komatsu, Bobcat, Terex, Sany, Ford, etc. (Also supports Cummins-Afterteatment-SCR)
- Fit for Caterpillar Engine : Freightliner, Kenworth, International, Peterbilt, Ford(650/750), Caterpillar C7/C15/C32, etc.
- Fit for Detroit Engine : Freightliner, Kenworth, Peterbilt, Western Star, etc, typical engine models: DD13(Freightliner), DD15(Freightliner Cascadia), DD16, ect.
- Fit for Paccar Engine : Kenworth, Peterbilt, DAF, Leyland, etc,typical engine models: MX-13, PX-6, PX-7, PX-9, TX-8.
OE level-Full System Diagnostic for Cummins, Detroit, Caterpillar, Paccar
Engine : For Cummins:Freightliner、Kenworth、Autocar、Peterbilt、Komatsu、Bobcat、Terex、Sany etc
For Caterpillar :Carter Construction Machinery, Kenworth, International, Peterbilt, Ford (750) etc
For Detroit:Freightliner,Kenworth,Peterbilt, Western Star etc
For Paccar:Kenworth, Peterbilt ,DAF, Leyland etc
Complete DPF Service Functions
DPF Regeneration ( Fit for Cummins, Paccar, Caterpillar, Detroit, HD Volvo,Mack,International/Maxxforce, Isuzu,Fuso,Hino; )
DPF Regeneration is used to clear PM (Particulate Matter) from the DPF filter through continuous combustion oxidation mode (such us high temperature heating conbustion, fuel additive or catalyst reduce PM ignition conbustion) to stabilize the filter perfornance. Avoid costly replacement of the filters. Lower Overall Maintenance Costs.
DPR state check,
DPR state reset,
DPR differential pressure detection,
Forced DPR regeneration,
DPD Forced Regeneration,active(auto) regen,passive regen,
DPF related information reset,
DPD Regeneration Data Reset,
DPD Automatic regeneration,
DPD normal regeneration control,
DPD slow regeneration control,
DPD status resetting,
Clear DPF Data, etc.
DPF regeneration may be performed in the following cases:
(a) The exhaust back pressure sensor is replaced.
(b) The PM trap is removed or replaced.
(c) The fuel additive nozzle is removed or replaced.
(d) The cataytic oxidizer is removed or replaced.
(e) The DPF regeneration MIL is on and maintenance is performed.
(f) The DPF regeneration control module is replaced.
Operate Notice
DPF regeneration ensures that the vehicle state meets the following requirements:
1. First of all, when dpf is regenerated, the vehicle needs to ensure that the vehicle speed is 0, and the brake pedal, clutch pedal and accelerator pedal of the vehicle are in a normal relaxed state, that is to say, the accelerator, brake and clutch pedal of the vehicle are not stepped on.
2. In addition, the gear of the car needs to be kept in the neutral position, and the dpf regeneration function cannot be turned on with gear. At the same time, the hand brake of the car should be tightened.
3. In the process of starting the regeneration function of automobile dpf, it is also necessary to ensure that the engine of the automobile is always in an idle state, and the temperature of the automobile water tank is best kept above 40 degrees Celsius.
4. Engine running at idle speed, and water temperature should be higher than 80 Celse Degree.
5. Coolant temperature is higher than 60"C Degree; Fuel temperature is lower than 70"C degree;
The above conditions are necessary for the dpf regeneration process. If any of the above conditions are not met, the dpf function of the car will not work normally at this time.

Ancel HD3400 PRO also can diagnostic other 24V commercial truck for J1587, J1708, J1939 protocols :
1) . Full system diagnostic of America HD diesel truck(J1939 from 2006),
2) . Part of the system diagnostic of European HD diesel truck (J1939 from 2012),
3) . Some system diagnostic of Asia HD diesel truck (ABS/EBS system);
To read codes, erase codes , live data , data stream and so on
Other Commercial Vehicles Support
America heavy duty diesel truck
International
HD Volvo
Mack
Freightliner
Kenworth
Peterbilt
Ford Truck with Cummins engine
Europe heavy duty diesel trucks
Mercedes-Benz
Sprinter
Man
DAF
Scania
Iveco
Renault
Asia heavy duty diesel truck
Isuzu
Hino
Fuso
UD
UD Volvo
Hyundai
KIA
Engine Brands
Cummins
Detroit
Caterpillar
Paccar
ABS Brands
Wabco
Bendix
Wabash
Haldex
Gearbox Brands
Allison
Eaton
ZF

Supported engine and model reference
Cummins Engine
Cummins X12,
Cummins x15,
Cummins ISX15,
Cummins L9,
Cummins B6.7,
Cummins Westport L9N
Cummins ISB inline-6 (2007–2015)
Support Brand & Models :
Peterbilt :579,567,389,367,520
Kenworth:W900,W990,T880,T680,C500,T180,T280,T380,T480
International:LT Series,HX Series,LoneStar,MV Series,HV Series,Durastar,Prostar,Workstar
Volvo Truck :VNL 300/400/740/760,VNL 860/300/400/740
Mack:Anthem,Granite MHD,TerraPro,LR
Western Star :6900,4700,4900,49X
Autocar ;DC-64R,ACX series,ACMD,ACTT
Ford :F600 F700
Terex :TR50
Bluebird
Komatsu
Zoomlion
Freightliner:Cascadia, M2,108SD,114SD,122SD
Detroit Engine
Detroit DD13,
Detroit DD15,
Detroit DD16
Freightliner : Cascadia, M2,108SD,114SD,122SD
Western Star:4700/4800/4900/6900/47X, X-Series
Kenworth : C500
Paccar Engine
Paccar PX-7,
Paccar PX-9 ,MX13
Kenworth :T780/K270E/K370E/T680 Next Gen/T680/T880/W990/T180/T280/T380/T480
Peterbilt: 579/389/567/367/365/548/535/536/537/220
Caterpillar Engine
C15,C32
Ford Pick-up F-650/750
Freightliner M2,Argosy
Peterbilt 379, 387, 385, 378 and 357
Kenworth C500
Caterpillar 320D, 312E, 312F

OBDII Check
① OBDII: gasoline standard OBD;
② Protocol: SAE J1850VPM, SAE J1850PWM, ISO9141, ISO9141-2, ISO14230-4, ISO15765-4, KWP2000, CAN, ISO27145 (latest);
③Passenger car (12V): car, pickup, light truck;
④ System: engine system after 1996 (US 1996, Europe 2001, Asia 2008), Euro VI whole system;
⑤ Function: basic engine diagnosis : Version Info, Read DTC, Clear DTC, Read DataStream, Read ECU Informatio
HD Trucks: Freightliner, International, Kenworth, Mack, Mercedes Truck, Peterbilt, Sterling, Western Star, Volvo...
Engine: Cummins, Caterpillar, Detroit, Paccar...
Transmission and ABS: Allison, Bendix, Eaton, Wabco, ZF...
Global coverage for off road equipment : BobCat, Case, Caterpillar, John Deere, Komatsu, Terex, Volvo...
12V Car Coverages ( Check OBDII )
Car (Domestic): Buick, Cadillac, Chevrolet, Chrysler, Dodge, Ford, GM, GMC, Lincoln, Jaguar, Jeep, Pontiac, Saturn
Car (Europe): Audi, Bentley, BMW, Fiat, Jaguar, Land Rover, Mercedes Benz, Mini, Porsche, SAAB, Smart, Sprinter, Volvo, VW
Car (Asia): Acura, Daewood, Honda, Hyundai, Infiniti, Isuzu, Kia, Lexus, Mazda, Mitsubishi, Nissan, Scion, Subaru, Suzuki, Toyota;
Pickup (or Van): Silverado, Coronado, Ford (F150-750), Ford E-series, Dodge RM 1500-5500, GMC, Nissan Frontier, Toyota

One-click Activation
When you first use the truck tool for diagnosis, fill in the valid user information, no other complicated processes, directly click Activate and can be activated to use.
One-click Screenshot
If you encounter important data during vehicle diagnosis that needs to be analyzed again later, you can take a screenshot and save it first, and you can view, modify or delete it in Data Management at any time.
One-click Create, Email share and Print Diagnostic Report
With the truck diagnostic scanner, a vehicle diagnostic data is generated after you perform a vehicle diagnostic. You can create a vehicle health report, and then send the test report to yourself to the mailbox (the mailbox server is google) or share it with your friends. And also print the vehicle information, fault codes, live data and other data reports, as well as the software interface can also be printed. Easy for you to view, analyze and carry. Please note that you need to use this feature while connected to WiFi.
One-click Feedback
This scan tool allows you to use this function to send diagnostic problems back to our technical team, and then you can always get our professional technical team to analyze and solve the problem for you. We provide technical support directly online, so there is no need to go out and find a repairer or pay extra for repairs.
One-click Lifetime Update
We will keep developing new features all the time, improve the deficiencies of old features, fix heavy truck scan tool problems, and will update the device version regularly. You don't need to update on your computer or other TIF card to update, you can get the latest version for free with just one click to update. (It is recommended that you can upgrade your device every 1-2 months by connecting to WIFI)
About Update:
1.Enter (Settings), turn on (WiFi).
2.Enter (Update) in the function main menu, and the system will automatically search for the latest update program. Click (Update) to upgrade the model and other applications to the latest version.
Warm tips: Perform VCI and application upgrade first, then vehicle database upgrade. If it is already the latest version, you can update it after a while, we usually update the device from time to time.
Pin Detect
Auto pin detect function automatically measures the voltage of the OBD diagnostic interface and determines the pin positions of the K li