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Launch CRP129HD Heavy Duty Truck Scanner with DPF Regen, Speed Limit Adjust Reset, Full System Diesel Semi Truck Diagnostic Tool & Code Reader for Cummins Detroit Allison International Paccar,ALL IN ONE HEAVY DUTY TRUCK DIAGNOSTIC SCANNER FOR MOST 24V COMMERCIAL VEHICLES

WHY CHOOSE LAUNCH CRP129 HD? -- More Efficient, Less Cost & Stay Ahead!

99% Vehicle Coverage & NO IP restriction: Unlike factory and dealer tools that can only work for certain vehicles, LAUNCH CRP129 HD owns complete database, covering 56+ global truck brands and 10,000+ models (1996-2026) from US, Asian and European, including Heavy Truck, Light Truck, Pick-up, Buses, Trailers, Excavators, Agriculture, Construction machinery, Mining and other Off-highway applications. 2026 Globle Version, “NO IP restriction” (can be used worldwide w/o losing any features).
OE-LEVEL All-System Diagnostics: LAUNCH CRP129 HD can perform in-depth and comprehensive diagnosis of commercial vehicles for all available systems to read/clear codes, view live data, and check ECU Infor., including ECM, ABS, SAS, TCM, ESP, Drivetrain, EAS, Aftertrain, etc. Delivers precise and extensive diagnostic insights, enabling rapid identification and resolution of vehicle issues.
Diesel Truck DPF Regen & Reset Features: Experiencing loss of power, sluggish acceleration, or poor hill-climbing performance? These symptoms are often caused by a clogged or overloaded DPF. The truck diagnostic scanner offers OEM-level forced DPF regeneration, DPF reset, and DPD/DPR functions. This device extends DPF lifespan and efficiently diagnoses exhaust aftertreatment issues. It can significantly reduce diagnostic time and save you up to $3,000 or more in costly dealership fees.
7+ Resets - Perform Essential Procedures: The truck scanner features 7+ essential resets including DPF Regen clears carbon buildup; Oil Reset clears service light; Injector Coding matches new injectors; DEF Test checks urea injection; Speed Limit Adjust saves fuel; Cylinder Cutout pinpoints misfires; Clutch Relearn restores smooth engagement. Reset after maintenance or part replacement for proper truck operation.
Full HD OBD/EOBD/OBDII Modes: LAUNCH CRP129 HD is not only a heavy duty diagnostic scanner for commercial vehicles, but also a universal HD OBD/OBDII/EOBD code reader for trucks and cars. HD OBD allows to diagnostic the ECU of heavy duty vehicle which support SAE J1939 and SAE J1708 protocols. Help you pass your annual inspection with ease.
One Tool for 56+ Truck Brands: The diesel scanner supports J1939, J1708, J1587, and OBD2/CAN protocols, delivering broad coverage for major diesel trucks and commercial vehicles including Cummins, Cat, Detroit, Paccar, Volvo, Freightliner, Kenworth, Peterbilt, International, Mack, Isuzu, Hino, Scania, Mercedes-Benz, and more. Also supports Allison, Aisin, Eaton, WABCO, and Bendix, helping you diagnose more vehicles, reduce equipment costs, and handle more jobs with one professional scan tool.
5X Faster Hardware: Logically-laid out easy menus, plus instant one-touch response benefit from a faster processor CPU (4-Core 1.3Ghz) + flagship O.S Android 8.1, smoother and no delay; 3000mAh Rechargeable Battery for lasting 8 hours of busy work; 2G/16G memory, enough storage space to handle more files and data; 2-IN-1 operation with buttons and 4'' touchscreen, more convenient and can be operated quickly even with gloves on, making the LAUNCH CRP129 HD an absolute breeze to use.
More Intelligent Features, Feel the Power: Auto VIN & Auto Scan, one-click automatically identify the vehicle and enter all system scanning (Auto VIN NOT for ALL Trucks); 4-IN-1 Data Stream Graphing, Data Record and Playback for further analysis; Share & Print Diagnostic Report, Online Feedback and Remote Diagnostic, helps you troubleshoot problems faster; Built-in 3000+DTC Library & Code Search, quickly obtains the DTC definition and connects online for more online help & tips; 11+ Languages supported, NO Language Barriers.
2-Year Free Updates & 1-Year Warranty: The diagnostic tool includes 2 years of free WiFi updates to keep firmware and vehicle software current. All existing features & past updates work perfectly after 2 years — no disruption, no forced subscriptions.Optional point-based updates on demand. It comes with a 1-year hardware warranty, 11 language options(English, Spanish, French, and more), and 24/7 technical support to help you use the tool with confidence.

[REMINDER]

If Auto VIN fails, please manually select the brand to do the diagnosis, if you can not find the model year manually, please reach us for confirmation!
The functionality varies depending on the vehicle model. Please contact us to check compatibility before purchasing.

ALL-AROUND & IN-DEPTH FULL SYSTEM HEAVY DUTY TRUCK DIAGNOSTIC SCANNER, NO PLACE FOR FAULTS TO GO

launch crp129 hd diesel scanner diagnostic tool heavy duty obd2 scanner

OE-Level All System Scan, In-Depth Diagnosis, More Precise Report, Wider Coverage for 99% Trucks

LAUNCH CRP129 HD designed for professional truck scanning across nearly all systems in 99% semi-commercial vehicles. It encompasses comprehensive coverage of the ECM, ABS, SAS, TCM, ESP, Drivetrain, EAS, Aftertrain and etc. It adheres to a wide range of protocols, including SAE J1939, SAE J1708, SAE J1850 KWP2000, ISO9141, ISO11898, ISO15765, ect. This diesel diagnostic scan tool delivers a All-Around and In-Depth scan, providing efficient and accurate diagnostic results, pinpoint system faults in minutes.

>>OE-Level All Systems Diagnostic for Most Commercial Vehicles

LAUNCH CRP129 HD diesel scanner diagnostic tool automotive scanenr can scan full modules, like Engine, ABS, SRS, SAS, Transmission, Chassis, Gas Aftertreat, Drivetrain, DEF, ESP, SATC, EVAP, Cluster, Suspension, Braking System, Cab Climate, Instrument Panel, Fuel System, Natural gas, Battery Management, Speed control Unit pump system, Common Rail System, Electronical control system, Air-conditioning system, Auxiliary heating system, Audio system, Compressed Air Reserve system, Collision safety system, Clock and Time System, Turbo Control systems, Electrohydraulic steering system, Exhaust Pressure Adjustment systemsetc, and etc.

AutoVIN & AutoScan: This advanced car scanner has a one-touch AutoVIN option to help you automatically identify the vehicle; match the proper diagnostic software for a quick and precise scan. *Note Auto VIN NOT For ALL Trucks.
Read Codes: Find out all the DTCs of all systems to locate specific problems areas, with one click and provide a convenient “code search” for diagnostic tips & maintenance direction.
Clear Codes: Clear the fault codes after repairing according to the prompts of the scanner .
View Live Data Stream: Provide massive data stream in text & graph for repair reference, including oil temperature, speed, tire pressure, battery voltage...
Check ECU Information: Access control unit details like unit type, version numbers, and more, offering crucial references for repair work.

When it comes to troubleshooting complex issues in your car, real-time live data analysis is essential. The ability to view, graph, record, and playback real-time values and system status information allows for more in-depth analysis and a faster solution.

Live Data Stream Graphing feature provides detailed data stream information, including the changes in accelerator pedal position sensor, throttle valve position, fuel tank pressure, long & short fuel trim, and more. The graphs show you how each module is changing, so you can spot problems more easily.
Data Stream Record & Playback allows you to record the live data stream, and lets you view and analyze the data you have recorded at any time. You can choose to combine, report, or record the data to make it easier to analyze and troubleshoot complex issues.
PRE & POST-Scan Report: The PRE-scan report helps technicians to identify the areas that require repair and develop an appropriate repair plan,to expedite insurance carrier approval of repair estimates.And the POST scan report prove all DTCs on PRE-Scan report are fixed,DATED scan report to ensure vehicle is repaired and safe for customer.
Diagnostic Report Share & Print: Those who like to keep a record of any faults for future reference will be glad to have this scan tool. It can automatically generate the detailed report to list the detailed inspection result once the diagnosis is completed, and automatically save in cloud . And mechanics can customize workshop information in the Settings in advance, share the report viaemail/QR or printed out via PC, letting customers know exactly what types of problems their cars have.

7 ENHANCED SERVICES, MAKE DAILY MAINTENANCE A BREEZE FOR 99% COMMMERCIAL CARS

7+ Commonly-Used Service Functions, Handle Daily Repair Easier & Effortless

When it comes to obd2 scanner diagnostic tool with reset, the number of reset functions and car compatibility are two essential factors that can make all the difference. LAUNCH CRP129 HD heavy duty truck obd2 scanner stands out from the competition by offering 7 more reset functions for wider car compatibility, providing even more comprehensive coverage for your car diagnostic needs. A Must Have for Truck Owners, Truck Repair Store, DIYs-TruckingEnthusiasts and Professional Mechanics!

DPF Regeneration: The DPF is a critical system on diesel vehicles designed to filter exhaust particulate matter. Over time, this filter can require maintenance. The LAUNCH CRP129 HD diesel scanner provides comprehensive diagnostic capabilities to help you understand the health of your diesel vehicle's systems:1)Read and clear fault codes from the engine and DPF-related systems. 2)Display live data from the DPF pressure sensor and other related parameters. 3)Monitor the status of the DPF regeneration system. 4)View readiness monitors for emission-related components.
Oil Reset：The CRP129 HD disel scanner helps reset the oil life reminder and turns off the oil indicator after an engine oil change. This allows your car to recalculate another optimal oil life change interval, helping you avoid unintentionally exceeding your oil change interval. By changing your oil on time, you can keep your engine healthier, more fuel efficient, running cooler, and prevent internal damage.
Injector Coding: This function allows you to write the new injector code for the corresponding cylinder, ensuring that the engine can accurately control the amount of fuel injection into each cylinder during operation. It helps to match during replacement or repair to improve fuel economy and emission control effectiveness, ensure engine performance and longevity.
Speed Limit Reset：This function enables you to adjust or cancel the maximum vehicle speed limit. The LAUNCH CRP129 HD allows you to adjust your truck's maximum speed according to local traffic regulations and road conditions, improving driving efficiency, reducing driver fatigue and increasing economy. Note: It is crucial to maintain consistency between the maximum cruising speed and the maximum vehicle speed when adjusting the maximum vehicle speed. The maximum speed adjustment will only take effect when these two speeds are kept consistent.
Clutch Learning：This function can relearn clutch values to ensure normal clutch operation, replacing gearbox or TCU. Clutch learning optimises the performance of the clutch to ensure a smooth start and avoid sudden acceleration or stalling of the vehicle. It also achieves smooth gear changes and reduces damage to the engine and transmission gears. Furthermore, it prevents overloading of the transmission system to ensure safe operation of the vehicle. This significantly improves driving comfort and safety.
Cylinder Cut-off/Compression Test：LAUNCH CRP129 HD can cut off certain cylinder when the engine is running to identify which one is working improperly. Users can judge whether certain cylinder is normal or not by separately cutting off certain cylinder and checking the working status of the engine.For example, if the engine's RPM drops significantly when one cylinder is cut out, it may indicate that the cylinder is not firing correctly or that there is an issue with the fuel injector or combustion chamber. If the RPM drop is minimal, it may indicate that the cylinder is operating normally. With Power Balance Test-Cylinder power balance testing, LAUNCH CRP129 HD can help uncover hidden engine issues related to engine misfires, lack of power or just a poor running engine, which is commonly missed with other tests. So, cylinder power balance testing, is one of the best and easiest ways to find the source of a engine misfire.
Urea Drive (DEF)：Once the urea pump maintenance has been completed, the urea drive is to inject the urea solution into the catalytic converter in the exhaust system. This reacts with NOx in the exhaust gas, decomposing it into harmless nitrogen (N2) and water vapour (H2O), thereby reducing the environmental impact of the truck's operation. Secondly, the use of DEF allows trucks to comply with emissions standards, enabling them to operate legally without facing penalties or restrictions. Furthermore, it enhances fuel efficiency and engine performance.

NOTE: Special features vary depending on the vehicle model. Please contact us to check compatibility before purchasing.

99% VEHICLE COVERAGE, 56+ GLOBAL COMMERCIAL BRANDS(1996-2026), CONTINUE GROWING

10,000+ Truck Diesel Models, 2026 Global Version, Use Worldwide, NO IP Limited

Cover 56+ Global Commercial Brands, 10,000+ Truck Models (1966-2026)

[America]: Compatible with Cummins, Ford, J.ohndeere, Allison, Caterpillar, Detroit, International, Freightliner, Paccar, Wabco, Kenworth, Mack, CASE, Maxxforce, Bendix, Credo, Eaton, Western_Star, Sterling, Peterbilt, Miller, etc.
[Europe]: Compatible with Benz HD, DAF, Volvo, Setra, Irisbus, Irizar, Iveco, Neoplan, JCB, ERF, ZF, Voith, Perkins, MAN, Scania, Renault, etc.
[Asia and Other Areas]: Compatible with Aisin, Hino, MWM, Fuso, SITCAR, Tata, STEYR, Isuzu, UD, Doosan, Flexicoil, DEUTZ, Hyundai HD, Ashok_Leyland, etc.

LAUNCH CRP129 HD heavy duty truck scanner adheres to a wide range of protocols, including SAE J1939, SAE J1708, SAE J1850 KWP2000, ISO9141, ISO11898, ISO15765, ect. It is compatible with most US Commercial Vehicles ranging from Class 3 ( 10,001-14,000lbs ) to Class 8 (>33,001lbs ). Equipped with OBD 6-PIN, OBD 9-PIN and CAT-9 PIN connectors,, LAUNCH CRP129 HD can superior compatible with most of 24V Construction Machinery Vehicles and Heavy Duty Trucks.

Construction, marine, agricultural, and other construction equipment and machinery that meet standard Diesel OBD protocols. Such as excavators, dozers, scrapers, loaders, graders, mixer pumps, tower cranes, wheeled cranes, crawler cranes, construction hoists, etc.
Semi-trucks and heavy-duty trucks that meet HD OBD standard protocols. Includes delivery trucks, school buses, garbage trucks, long heavy-duty trucks, buses, roll-ons, refrigerated and conventional trucks, etc.
Ordinary passenger cars, SUV pickups, light-duty trucks that comply with OBDII protocols (Only supports OBD2 10 MODES)

[REMINDER]

Unable to determine compatibility? Before purchasing, please provide us with the vehicle VIN for compatibility check.
If Auto VIN fails, please manually select the brand to do the diagnosis, if you can not find the model year manually, please reach us for confirmation!
Passenger vehicles Only supports OBD2 10 MODES. If you are unsure if your vehicle model is supported, please contact us before purchasing to check compatibility and provide the vehicle model and year (or VIN code)

PROFESSIONAL HEAVY DUTY TRUCK SCANNER FOR 10+ DISEL ENGINES

Diverse Adapters, Universal Connectibity

LAUNCH CRP129 HD heavy duty truck scan tool is gread compatible with 10+ types of engines, including Cummins, Caterpillar, Hino, Paccar, Detroit, International, Isuzu, Fuso, Perkins, Volvo and etc. Precisely meeting your various needs.

for CUMMINS: X11/ X12/ X13/ X15/ ISX15/ L9/ ISB/ISD/ ISL/ ISG/ ISX/ ISF/ISBE/ QSM11/ISM/ QSX15/ISC/ ISN/ ISK...
for DETROIT: DD5/DD8/DD13/ DD15/ DD16/SERIES 50/ SERIES 60/MBE 900/ MBE 4000/CPC2/CPC02T/CPC04T/CPC302T 50/CPC302T 55/CPC302T 60/MBE900//MBE4000/OM502/OM501/DDDL6/DDDL7...
for ISUZU: 4HE1/ AHG1/ 4HK1/ 4HL1 /4HV1/ 4JA1 /4JB1/4JG2/4JH1/ 4JJ1/4JJ3 /4JK1/4KH1/4HE1/ 4HG1/ 4HJ1/ 4HK1/ 4HL1/4HV1/ 4JA1/ 4KH1 /4ZE1 /6HK1/ 6HL1/ 6U2Z/ 6WF1 /6WGt/RZ4E...
for VOLVO: J1708/500K/D13TC/D11/D13/FM Series(FM7/9/10/12)/ FH Series(FH12/16/565)/FL Series(FL10 FL12 FL6FL7)/NH Series(NH12/535/565)/ F Series(F10/12/16)...
for PACCAR: MX10/ MX13/TX-7/TX-8/PX-7/ PX-9/PR/ GR/ BR Series...
for MAXXFORCE:MaxxForce5/7/11/13/15/DT9/DT10...
for CATERPILLAR: C7/ C9/ C11/C13/ C15/ C18/C27/ C32...
for FUSO: Euro 2/3/4/5/6(Canter,Fighter,Super great)...
...

There are more engine models not listed here, please reach us for the compatibility before purcahse.

CRP129HD ELITE can handle a wide range of engine types and models used in different trucks, it work with diesel engines from various manufacturers,the broad compatibility ensures that technicians and fleet managers can use a single diagnostic tool for multiple vehicles, saving time and resources.
This truck diagnostic tool that encompasses many engines simplifies maintenance and repair processes, enhances operational efficiency, and ultimately leads to cost savings and improved reliability for truck fleets!

UNLOCK MORE CRP129 HD ADVANCED FEATURES, EXPERIENCE THE EASE, FEEL THE POWER

Smart Diagnostic Tool For Maximum Efficiency

AutoVIN & AutoScan: Instead of manually inputting VIN codes one by one, this diagnostic scanner with superior Auto VIN technology allows you to start VIN scanning and identify vehicles with one click. The Auto VIN retrieval quickly matches the right diagnostic software that will enhance the diagnostic capabilities and resolve compatibility issues. *Note that this function mainly works on 2006+ cars.
4-IN-1 Data Stream Graphing: The LAUNCH CRP129 HD diesel turck scanner reads and displays live data stream in one graph, allowing you to add 4 parameters in the meantime to show the live data, which is intended to help you quickly find potential problems of the vehicle. You also can recorded or replayed for further analysis.
3000+ DTC Library Lookup: The built-in 3000+ fault code library allows you to retrieve the definition of the diagnostic trouble code.
Accurate Code Search: After getting the detailed diagnostic reports, built-in “Code Search” allows you to directly connect online to get more repair information like code explanations, causes, repair solutions, repair tips, etc., which greatly facilitates diagnostics and saves a lot of time for the repair.
Diagnostic Report Share & Print: LAUNCH CRP129 HD heavy duty truck diagnostic scan tool, can automatically generate a diagnostic report to list the detailed inspection result once the scan is complete. You can share it to your mechanic to help you solve complex problems. Or connect the PC to print it for your clients.
Timely Online Feedback: Feel confused about certain diagnostic problems? This scan tool LAUNCH CRP129 HD allows you to submit online feedback of your diagnostic problems to LAUNCH for analysis and troubleshooting. You can submit the detailed failure description to get valuable solutions.
Remote Assistance: When you encounter a complex car issue that is beyond your ability, with the help of remote assistance, you can easily get connected with your expert to help you.
11+ Languages Supported: LAUNCH CRP129 HD diesel truck obd2 scanner has built in 11 languages inside, including English, French, Spanish, German, Korean, Japanese, Portuguese, Italian, Traditional Chinese, Russian, Polish. The default language is English. If you are not an English speaker, you can choose Spanish, French, German, Italian, Polish, Japanese, Korean, Russian, or Portuguese for more convenient use. And switching is easy. Simply enter this code reader's "system settings -> language" to choose the one you'd prefer.

FULL HD OBD/ EOBD/ OBDII FUNCTIONS, HELPS YOU PASS ANNUAL INSPECTION WITH EASE

launch crp129 hd diesel scanner diagnostic tool

2 IN 1 Coder Reader for 24V Trucks and 12V Cars

LAUNCH CRP129 HD is not only a heavy duty diagnostic scanner for commercial vehicles, but also a universal HD OBD/OBDII/EOBD code reader for 24V trucks and 12V cars. HD OBD allows to diagnostic the ECU of heavy duty vehicle which support SAE J1939 and SAE J1708 protocols. With this scanner, you can get comprehensive information about your vehicle engine problem and fix it smoothly. Help you pass emissions tests without going to repairshop. Save your time and energy.

Read/Erase Codes: Read the fault code information retrieved from the vehicle system to identify where the fault location is.
Clean the MIL(Turn off Check Engine Light): Clear the fault code retrieved from the vehicle system to turn off the MIL after repairs.
View Live Data Stream: View live data of engine system in various modes, such as text, waveform, or graphic to help customers to better analyze the abnormal parameter.
Freeze Frame: When an emission-related fault occurs, certain vehicle conditions are recorded by the on-board computer. This information is referred to as freeze frame data. It intended to provide you with a guide as to where a fault might be occurring within a vehicle.
I/M Readiness Check: Shows whether the various emissions-related systems on the vehicle are operating properly and are ready for inspection and maintenance testing, which is convenient to determine the vehicle’s condition. This function can help you pass SMOG TEST.
On-Board Monitoring Test (MODE 6): Retrieves and displays test results for emission-related powertrain components and systems. Which is a way to find out if the engine has any misfire or compression problems on a particular cylinder, or other data that might indicate a problem but isn’t severe enough to trigger a check engine light.
O2 Sensor Test: Allows retrieval and viewing of O2 sensor monitor test results for the most recently performed tests from the vehicle’s on-board computer.Accurately identifies failures of oxygen sensor and vehicle emissions related errors.
Evap System Test (Mode 8): The EVAP test function lets you initiate a leak test for the vehicle's EVAP system, that prevents fuel from evaporating out of your tank and contributing to smog. After fixed a problem with the fuel system,you can verify your fix right away, without waiting a few days (or longer) for your car to run it automatically.
ECU Information: Read and display the control system module information detected from ECU.

*Passenger Vehicles Only supports OBD2 10 MODES. If you are unsure if your vehicle model is supported, please contact us before purchasing to check compatibility and provide the vehicle model and year (or VIN code)

What is in the box?

1 * LAUNCH CRP129 HD Main Unit
1 * OBD 16-PIN Diagnostic Cable, 1 * OBD Adapter, 3 * Diagnostic Connector (CAT 9-PIN, OBD 6-PIN, OBD 9-PIN)
1 * Quick Start Guide, 1 * User Manual, 1* Carrying Box