10 Best Scan Tools for Diesel Trucks [2025]
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When it comes to maintaining diesel trucks, having the right diagnostic tools is essential. The best scan tools for diesel trucks can help identify issues quickly, ensuring your vehicle runs efficiently. In this article, we’ll explore the top 10 scan tools available in the market, highlighting their features and benefits.
Top 10 Scan Tools for Diesel Trucks in the Market
Best Scan Tools for Diesel Trucks Review
Bestseller No. 1
ANCEL Heavy Duty Truck Scanner HD601 All System Diesel Diagnostic Scan Tool fits...
- 【Extensive Compatibility】After the upgrade, the compatibility is wider and more accurate! HD601 heavy duty truck scanner supports all major truck models that comply with standard protocols (SAE J1939, SAE J1708, ISO 14230-4, ISO 15764-4 and ISO 9141-2, ISO 27145-4 and Euro6). Fits for Cummins, Paccar, Detroit, Perkins, Freightliner, International, Peterbilt, Ford, Class 4-Class 8 trucks, etc. It also check engine diagnosis on most cars, minivans and light trucks
- 【 Full System Diagnostic】HD601 Diesel Scanner supports all system scans of heavy trucks compliant with standard protocols SAE J1939 & J1708, such as Engine, ABS, Transmission, Braking System, ESP, EPS, Fuel System, etc, It is a great scan tool fits for Cummins, Caterpillar, Detroit, Perkins, Maxxforce, Bendix,Wabash, Wabaco, Haldex, Allison, Eaton heavy trucks, With this truck tool, you can get deep analysis data about the system and do some repairs by yourself, saving much time and money.Note: Only heavy truck vehicles that comply with the above protocol can diagnose the entire system
- 【Enhanced Diesel OBD Scanner】The HD601 Diesel OBD Scanner offers unparalleled diagnostic capabilities for heavy-duty trucks. Beyond code reading, clearing, and live data display, it retrieves vehicle information, freeze frames, and DTCs. With 6, 9, and 16 pin cables, it ensures compatibility with various engines. This scanner's real-world testing prowess ensures comprehensive support for a wide array of heavy-duty truck engines, making it an indispensable tool for truck diagnostics
- 【DTC Library】+【Life Time Free Update】The built-in DTC library allows you to retrieve the codes directly without searching for the definition in the book. Whether you are a professional mechanic or a DIY car owner, HD601 diesel scanner explains the existing problem, makes it easier for you to understand the codes definition and fix the problem faster. Plus, you get a lifetime free internet updates, so you always have the latest software for diagnostics in English and Spanish languages
- 【Friendly Design, Easy of Use】This scanner is plug and play, simple and convenient, and very friendly for beginners. With improved buttons for easy menu navigation. The excellent 2.8 inch LCD color screen makes it easy to view the displayed results and gives you a better overview of your car's problem areas and the identified codes. In addition, the processor is super-fast and responds without lagging, providing maximum comfort and efficiency in diagnostic and service work.
SaleBestseller No. 2
NEXAS Heavy Duty Truck Scanner NL102 Full System Diesel Truck Scan Tool for...
- Why NEXAS NL102 Truck Scan Tool? The NL102 outshines other truck scanner with its extensive diagnostic features. It offers full system diagnostics for major trucks meeting standard protocols, along with complete OBD2 functionality. Beyond read fault codes, clear codes and live data display, it enables vehicle info retrieval, freeze frame capture, and DTC lookup. Equipped with 6-pin, 9-pin, 16-pin connectors, it ensures broad truck compatibility. Plus, enjoy lifetime free updates in English, Spanish, and French, keeping your diagnostic scanner software current.
- Wide Compatibility - Friendly Reminder: To avoid compatibility issues, please confirm with us via Amazon Messages before purchasing. This heavy duty truck scanner is compatible with all heavy-duty trucks and semi that adhere to standard protocols (J1587, J1939, J1708). It covers a wide range of vehicle models, including Cummins, Detroit, Caterpillar, Freightliner, International, Kenworth, John Deere, Peterbilt, Sterling, Mack, Paccar, Western Star, Mercedes-Benz, Volvo, Scania, MAN, Renault, ERF, Foden, Seddon-Atkinson, Iveco, DAF, SISU, STEYR, ISUZU etc. Equipped with 6-pin, 9-pin, and 16-pin connectors for versatile device compatibility, ensuring stable plug-and-play connections.
- Save Hundreds of Money for All Heavy Duty Trucks – This diesel diagnostic scanner supports accurate full-system scans for all heavy-duty trucks that comply with standard protocols (J1587, J1939, and J1708). It can read and clear trouble codes across a range of vehicle systems, including the engine, transmission, instrument panel, drivetrain, brake system, suspension, ABS, ESP, EPS, fuel system, etc. The truck scanner communicates directly with your truck's computer to provide real-time data stream analysis, letting you pinpoint issues with precision. This cuts down on waste from unnecessary part replacements, saving you time and hundreds or even thousands of dollars.
- All OBD2 Functions + Battery Health Monitoring – Unlike many obd2 scanners on the market that only cover partial OBD2 features, ours gives you full OBD2 capability: read & clear codes, live data, freeze frame data, I/M readiness checks, EVAP tests, on-board monitor, O2 sensor tests, vehicle info, and DTC lookup. That means more detailed insights for pros and DIYers alike. The NL102 isn't just a code scanner – it's a battery saver. Regularly check your car's battery health, and catch issues before it dies completely. No more unexpected no-starts in the driveway or on the road. It diagnoses battery condition accurately, helping you avoid costly last-minute repairs.
- Plug and Play & One-click for DTC: NEXAS diesel scanner is user-friendly. It comes with an intuitive screen and easy-to-understand interface, making it accessible even for non-professionals to get started. And the built-in DTC library in the code reader allows you to directly retrieve codes without searching for definitions in books, making it easier to understand the code definitions and solve problems more quickly.
Bestseller No. 3
ANCEL HD430 Heavy Duty Truck Scanner, DPF Reset & Forced Regeneration for...
- 【Wide Compatibility】HD430 supports 12V 24V trucks, equipped with diesel connectors (CAT-9, Diesel 6pin & 9pin) and OBDII 16pin, with strong truck adaptation and compatibility. Product supports SAE J1939, SAE J1708, SAE J1850 PWM, SAE J1850 VPW, ISO 14230-4, ISO 9141-2, ISO 15765-4, ISO 27145-4 truck protocols, provides complete scan & fast scan, and available in English and Spanish, it is suitable for DIY enthusiasts, old-school mechanics, truck owners or small repair shops.
- 【 D.P.F Regen For Cunmmis & Caterpillar】HD430 supports Cummins and Caterpillar engines for D.P.F reset & regeneration, helping to remove diesel particles from truck D.P.F & meet maintenance schedules, thereby avoiding fault codes, maintaining engine performance, and extending DPF & truck life. Even if you aren't a professional mechanic, you can easily perform D.P.F regen using HD430 according to clear instructions, which can help your truck avoid roadside obstacles while reducing your repair time & cost.❕❕❕Note: Not compatible with pickups/light trucks.
- 【Diesel Full System Diagnostic Tool】HD430 has excellent diagnostic performance, quickly scanning truck systems, detecting truck faults, while supporting the engine, ABS, transmission, fuel system and more. Read the fault code and DTC Lookup help you understand the cause of the fault, quickly clear the fault code after maintenance, so provide you with good maintenance assistance and convenience. HD430 heavy duty truck scanner will provide efficient, fast scanning of your truck system.
- 【Enhanced Diesel & Gasoline Scanner】HD430 has full HD OBD/EOBD/OBDII functions and supports heavy duty trucks with Cummins, Caterpillar, Detroit and Paccar engines. In addition to read & clear fault codes, view live data, ECUs, vehicle information, it also supports functions such as freeze frame, I/M readiness, on-board monitor test, etc. At the same time, the built-in DTC Lookup can help you quickly query and understand the specific definition of the fault code & solve the problem, providing strong support & convenience for your vehicle maintenance.
- 【Advanced Hardware & Design】4.3-inch screen, 8G memory, 8G TF, 2.4G Wifi & other hardware, your truck repair process will be more stable. Wifi Lifetime Free Update, you can always keep up with the latest diagnostic functions and optimized performance of HD430, compared with others, you can avoid expensive update subscription fees. The imperial conversion to meet your needs for the use of the unit of measurement. Unique horizontal screen button design, your operation will be more comfortable and convenient.
SaleBestseller No. 4
Heavy Duty Truck Scanner,Full System Diesel Diagnostic Scan Tool and Code Reader...
- 【2025 Newest OBD2 Scanner Diagnostic Tool】The NC601 is a cutting-edge OBD2 scanner for vehicles from 1996 onwards, covering cars, minivans, and light trucks. It supports multiple protocols, including J1850, ISO_9141-2, ISO_14230-4, and ISO_15765-4. This scanner checks engine diagnostics, determines check engine light causes, reads/erases trouble codes, and offers battery tests, smoke tests, fuel tests, and access to a trouble code library with over 50,000 entries. Compatible with OBDII 16-pin and 9-pin connectors (gasoline and diesel), it suits Cummins, Caterpillar, Detroit, Packard, and other diesel engines.
- 【 Full System Diagnostic】The NC601 OBD2 scanner is ideal for most OBDII-compliant vehicles updated after 1996. This lightweight, easy-to-carry tool offers simple operation and fast diagnosis. It covers real-time data, freeze frame, DTC reading/clearing, oxygen sensor tests, on-board testing, smog checks, I/M readiness, EVAP tests, vehicle information, MIL status, battery tests, fuel analysis, data monitoring, DTC queries, data playback/recording, and settings. As a new OBDII diagnostic tool, it allows deep system analysis and DIY repairs, saving time and money.
- 【Comprehensive Vehicle Coverage & Engine Diagnostic Capabilities】NC601 OBD2 scanner is suitable for most OBDII-compliant vehicles updated after 1996 (OBDII protocol//16-pin diagnostic interface: J1850 (PWM, VPW), ISO_9141-2, ISO_14230-4 (KWP , KWP-5BPS), ISO_15765-4 (CAN, CAN-B, CAN-C, CAN-D)) Compatible vehicles - cars, light trucks, pickups, SUVs, etc. This product Easy to carry, simple to operate, fast diagnosis, large memory, comprehensive code base, powerful performance and novel design for car owners.
- 【Enhanced Diesel OBD Scanner】The NC601 Diesel OBD Scanner excels in heavy-duty truck diagnostics. It reads/clears codes, displays live data, retrieves vehicle information, freeze frames, and DTCs. With 9-pin and 16-pin cables, it ensures compatibility with various engines. This scanner comprehensively supports heavy-duty truck engines, making it indispensable for truck diagnostics. It works with all OBD II compliant vehicles, including those with next-generation Control Area Network (CAN) protocols.
- 【DTC Library+Life Time Free Update】The NC601 scanner features a built-in DTC library, allowing direct code retrieval without consulting books. Suitable for professionals and DIYers, this diesel scanner explains problems, simplifies code understanding, and speeds up repairs. Lifetime free updates ensure the latest diagnostic software, keeping the tool current with vehicle technologies and protocols.
SaleBestseller No. 5
FOXWELL HD500 Heavy Duty Truck Scanner with DPF Regen/Injector Cutoff/Limit...
- 【Built for Diesel Powerhouses】FOXWELL HD500 heavy duty truck scanner is tailored to vehicles equipped with cummins, cat, detroit, paccar, international, hino and more engines. This diesel scan tool comes with multiple adapters (6 & 9 pin, CAT-9 pin, CAT-14 pin, 16 pin) for wide coverage. Delivers accurate diagnostics and reliable troubleshooting for trucks, buses, and heavy equipment. Tip: If the fault code of your truck follows the factory custom protocol, please enter the diagnostic menu, and then select the corresponding engine to test, so that your test data will be more accurate.(Please note that the HD500 does not have bidirectional and VGT calibration.)
- 【Smarter DPF Management】Clogged DPF killing performance? The HD500 diesel scanner handles DPF regen, reset, and status control with ease—keeping emissions clean, engines strong, and trucks on the road longer. Save thousands by avoiding costly DPF replacements. (Not supported on Isuzu vehicles.)
- 【Cylinder Cut-Off Made Simple】Pinpoint faulty injectors fast with cylinder cut-off testing. The HD500 heavy duty truck code reader commands the ECU to disable one injector at a time—helping you quickly spot bad cylinders and guide precise repairs without guesswork.
- 【Speed Limit Reset & ABS】Set speed limits for safety and reset engine/road speed parameters on supported vehicles. Plus, bleed the ABS module to restore a firm brake pedal. The HD500 ruck scanner keeps your fleet safer, saves repair costs, and minimizes downtime. (Speed limit reset not available on all engines—check VIN before purchase.)
- 【Access All Major Systems with Ease】The HD500 heavy duty scanner truck diesel provides full diagnostic capabilities, covering the engine, ABS, SRS, EPB, Park Brake Controller, DPF, etc. It comes with full HD OBD/EOBD/ OBD2 service modes, including read codes, erase codes, live data, etc. Allows you to quickly identify issues and perform necessary solutions.
Bestseller No. 6
ANCEL X7HD 10'' Heavy Duty Truck Scanner, Semi Trucks Full System Diagnostic...
- 🔥🔥🔥2025 New Functions Making X7HD the Top Dog - Big Surprise!!! ANCEL X7HD truck scanner 10 major functional advantages .✅>Full HDOBD/OBD2 Function ✅>ALL System Diagnostic ✅>42+ Reset Function ✅>Active Test / Bi-Directional Control✅>ECU Coding✅>Graphing Live Data✅>Wide Compatibility ✅>2 Yrs Free Update✅>Remote Operation✅>Bluetooth 5.0 & Wifi In addition, 8 major hardware advantages: ✅>6000 mAh✅>10.1 inch Tablet✅>2G RAM✅>32G ROM (Expandable to 128GB)✅>Data Record & Replay & Print✅>Android 10.0✅>Bluetooth 5.0 & Wifi✅>14 Languages
- 🚛OEM DPF Forced Regen & Cylinder Cutout Test & more - ANCEL X7HD diesel scanner diagnostic tool not only supports DPF regeneration, DPF reset, DPF related information reset, DPR state reset, DPD forced regeneration etc, which helps you better solve the exhaust aftertreatment system problems, but also supports activate motor to do exhaust air in ABS Automatically. Moreover, it features TPMS activation, cylinder cut-off and learning functions
- 🚛Advanced ECU Coding & Programming - ANCEL X7HD 10.1inch truck scanner diagnostic tool is equipped with advanced ECU coding, supports Level calibration, Idle speed learning and Adjustment, Camshaft timing control learning, Control unit adaptations, Injector Codes, Read/Write VIN, Road speed limit optional vehicle speed set, etc... PLEASE NOTE that ECU codes are not compatible with all vehicles, please send us your VIN# to check vehicle compatibility
- 🚛42+ Reset Functions & Bidirectional Control - 2025 newest top heavy duty truck scan tool, comes with 42+ special services (ECU, Speed Limit and Idle Reset, Oil Reset, Injector Coding, EPB, ABS, SRS, Suspension, Throttle, etc. and always keep growing), which meet all your various needs for service and maintenance
- 🚛10 Inch All Systems Diesel Scanner & Full HDOBD/OBD2 Modes - ANCEL X7HD diesel truck scan tool supports all systems scan, such as Engine, Brake, Retarder, TECU Transmission, Tachograph, ABS, SRS, TPMS, EPB, SAS, ESP, and other vehicle systems, comes with 10 obd2 service modes: read/erase error codes, Data Stream, I/M Readiness, Vehicle Information, Actuations, DTC Lookup, EVAP, view freeze frame, etc
SaleBestseller No. 7
ANCEL HD110 Heavy Duty Truck Scanner with DPF Regen and Reset for Detroit Paccar...
- Regain Power, Save Thousands: The HD110 modern semi-truck scan tool’s DPF Regeneration clears clogged filters in minutes! Stop paying for costly shop visits—perform on-demand DPF regen directly from your cab, anytime and anywhere. This diesel scanner diagnostic tool works with all major engines (Detroit, Paccar), including DPF regeneration tools to keep your truck running strong, boost fuel efficiency, and avoid breakdowns. Don’t let a clogged filter stop you—get back on the road faster
- For Detroit and PACCAR Engines: The HD110 Bluetooth Heavy Duty Truck Scanner is built specifically for Detroit and PACCAR engines. This powerful truck scanner diagnostic tool comes with all the necessary adapters, including 16-pin and 9-pin, to support a variety of diesel trucks. Common engine models include PX-7, PX-9, MX-11, MX-13, DD13, DD15, DD16, and more. Whether you need an OBD scanner for diesel trucks or a diesel scan tool, this tool has you covered to keep your truck performing at its best
- All HDOBD/OBD2 Diagnostics—Comprehensive Engine Check: The HD110 diesel scanner works with a wide range of diesel engines and supports full HDOBD and OBD2 diagnostics. Easily monitor performance, identify engine issues, and clear fault codes with this code reader for diesel trucks. Whether you’re on the road or in the shop, get real-time, accurate data to keep your truck in top shape and prevent unexpected breakdowns. Perfect for fleet operators who need quick and reliable diagnostics
- Free Upgrades, No Subscription Fees—Maximum Value: Get free life-time software upgrades with the HD110 diesel scanner—no subscription fees! Stay current with the latest updates and enhancements without any extra costs. This is the cost-effective choice for truckers who want a reliable diesel scanner without ongoing fees. Maximize your investment with the most up-to-date technology for your truck’s diagnostics
- Easy to Use, Simple Interface—Get Started in Minutes: Designed for simplicity and portability, the HD110 diesel scanner is incredibly easy to use. Just plug it in, scan, and go. This truck scanner is compact and lightweight, perfect for owner-operators, small fleets, and technicians. Whether you’re using it as an OBD2 scanner for diesel trucks or a general diesel scan tool, its user-friendly interface ensures a smooth, hassle-free experience. No complicated setups—just quick diagnostics when you need them most
Bestseller No. 8
KZYEE KC601 Heavy Duty Diesel Truck Scanner – Full-System Diagnostic Tool for...
- FAST & ACCURATE DIESEL TRUCK DIAGNOSTICS – KC601 heavy duty diesel truck scanner for 12V & 24V vehicles covers four essential functions: read ECU data, read & clear DTCs, and view live data. Diagnose problems in minutes instead of hours—saving money, preventing guesswork, and keeping trucks on the road longer.
- FULL-SYSTEM COVERAGE IN ONE TOOL – All-in-one diesel diagnostic tool scans key systems including engine, transmission, ABS, instrument cluster, body and chassis modules. Works as a fleet diagnostic tool, semi truck scanner, and commercial truck code reader—saving time, avoiding multiple devices, and boosting repair efficiency.
- WIDE COMPATIBILITY WITH MAJOR BRANDS – Equipped with 6-pin, 9-pin, and OBD2 16-pin connectors, supporting SAE J1587, J1939, and J1708 protocols. Compatible with many models from Cummins, Caterpillar, Freightliner, International, Mack, Kenworth, Peterbilt, Volvo, Hino, Isuzu, Mitsubishi Fuso, and more—so one tool works across brands, avoids wrong purchases, and keeps fleets running. (Not for passenger cars or light-duty vehicles.)
- FREE LIFETIME SOFTWARE UPDATES – KC601 offers free lifetime software updates with no hidden fees or subscriptions. Download the latest version anytime from kzyeetech.com to keep your diesel engine scanner reliable, accurate, and future-ready—ensuring long-term value for drivers, fleets, and repair shops.
- RUGGED STORAGE BAG INCLUDED – Includes a rugged storage bag to keep your scanner, connectors, and cables organized. Provides added portability and protection, so your heavy truck OBD2 reader is always ready for roadside service, fleet maintenance, or shop repairs—protecting your investment and saving space.
Bestseller No. 9
FCAR F802 DPF Regeneration Heavy Duty Truck Scanner,Compatible with...
- Professional DPF REGEN: Designed for Cummins, CAT, Detroit, Paccar, International, Hino and more engines. Clears DPF soot to ensure optimal exhaust flow, reduce emissions and prevent engine issues. Regular regeneration enhances fuel efficiency, extends DPF lifespan, avoids costly repairs and ensures compliance with emissions standards. Note: Confirm vehicle compatibility before purchase
- Comprehensive Heavy-Duty Diagnostic Solution: This versatile truck scanner supports a wide range of vehicles, including heavy-duty trucks, buses, trailers, and construction equipment, and is compatible with major protocols like J1587, J1939, J1708, and J27145. It works seamlessly with brands such as Autocar, Terex, and Komatsu, offering reliable diagnostics and performance optimization. Ensure your vehicle supports the listed protocols before purchase for guaranteed compatibility
- Powerful Hardware with Lifetime Free Updates: Features a vibrant 5-inch screen, Quad-Core processor, and 8GB storage for fast processing and ample data storage. Meanwhile, F802 provides lifelong free updates, ensuring compatibility with the latest vehicle models. Saves significant costs while providing expert support and efficient diagnostic. it's the good choice for hassle-free, cost-effective vehicle maintenance
- OIL RESET FOR ISUZU AND FUSO: F802 allows you to reset oil maintenance lights in minutes without professional help. It’s compatible with isuzu and fuso, user-friendly, and helps extend engine life by ensuring timely maintenance
- Full HDOBD/EOBD/OBD2: With quick and accurate diagnostics, our device allowing them to read & clear fault codes, view live data, ECUs and checking MIL (for truck engines) and I/M readiness. It helps optimize vehicle performance, improve fuel efficiency, prevent costly repairs, and maintain adherence to regulations, saving time and money in the long run
SaleBestseller No. 10
ANCEL HD431 Heavy Duty Truck Scanner, 2025 New Diesel Diagnostic Scan Tool, DPF...
- Why Choose HD431: Compared to other truck scanners on the market, with unique advantages, it supports DPF functions for Paccar and Detroit engines, and offers life-time free updates for software and versions, saving truck drivers hundreds of dollars in repairs. Moreover, with 6 & 9 pin, 16 pin diverse connectors, our decvice is highly compatible with American trucks. Equipped with a 4.3-inch HD screen and 8G memory, its user-friendly hardware design makes it more convenient for truck drivers to use and maintain their trucks
- DPF Regen for Detroit & Paccar: HD431 truck scanner supports forced regeneration, replacement, and reset functions for Detroit and Paccar truck engines. For truck owners, it is necessary to perform DPF regeneration regularly. This will help extend the service life and reduce maintenance costs of your truck, avoiding the hundreds of dollars and several hours required for a forced regeneration in the case of an emergency shutdown. Don't waste your valuable time on the road due to DPF problems
- Lifelong Free Update: Our device stands out with its commitment to offering lifelong free updates, a feature rarely seen in comparable products in the market. Typically, other costly truck diagnostic tools offer free updates for a period of one year or even less, leaving customers to shoulder hefty subscription fees or update costs amounting to hundreds of dollars annually to access their original special functions. In contrast, it eliminates such update expenses and boasts ongoing plans to refine vehicle diagnostic capabilities and introduce new functions, thereby enabling customers to save significantly
- All HDOBD/OBD2 Diagnosis: Our device supports all 12V and 24V trucks that comes with Cummins, Caterpillar, Paccar, Detroit engine . it can read and erase trouble codes, determine the MIL (For Truck engines) and I/M Readiness, Live Data, Oxygen Sensor Test, On-Board Monitor,etc. Furthermore, the built-in DTC lookup library can search for definitions of relevant codes, assisting you in determining whether your vehicle requires maintenance or repairs
- Wide Compatibility: Equipped with 6 & 9 pin truck connectors and 16 pin OBD standard connectors, HD431 suitable for various U.S. trucks and vehicles with different interfaces. In the menu interface, fast Scan and complete Scan (scan all protocols) can cover all the needs of truck drivers. The supported protocols include SAE J1939, SAE J1708, SAE J1850 PWM, SAE J1850 VPW, ISO 14230-4, ISO 9141-2, ISO 15765-4, and ISO 27145-4, etc
Conclusion
In summary, choosing the best scan tools for diesel trucks can significantly enhance your ability to troubleshoot and maintain your vehicle. With the right tool, you can save time and prevent costly repairs. Whether you’re a professional mechanic or a truck owner, investing in a quality scan tool is a smart decision for your diesel truck’s health.
