Best Heavy Duty Truck Diagnostic Scanners Review 2020


If you own a heavy-duty truck then know that an ordinary OBD2 scanner will not work on your vehicle, you’ll need the best heavy duty truck diagnostic scanner.


There are a plethora of heavy-duty scanners on the market, each claiming to be the best. This can cause confusion and make it difficult to make the right decision.

To help you in this regard, we have selected the 10 best heavy duty truck diagnostic scanners.

1. Autel Maxisys CV MS908CV Heavy Duty Diagnostic Tool with J-2534 ECU Programming, BT, WiFi Connection


If you’re looking for a heavy duty truck diagnostic scanner that offers advanced features, has wireless connectivity, and supports ECU coding then Autel MS908CV can be your best bet.


ECU Programming: If you’re a technician or a DIYer enthusiast, you’d know how big of a blessing it is to be able to program new components. It helps save money and can also enhance performance.

Luckily, this scanner will let you program new components. It comes with a MaxiFlash Elite programming device that aids in programming new parts (J2534 and J2534-2).

Advanced Features:

Brake Bleeding: With this tool, you can perform brake bleeding to get rid of the trapped air.

Oil Reset: It can read the oil light and tell you what the problem is. You can even get rid of the light after correcting the problem. In most cases, it illuminates when it’s time for an oil change.

EPB: This autel scan tool can find issues in the electronic parking brake system and help reset it after resolving the issue. It will point our sensor problems, wire damages, malfunctions, etc.

DPF: The diesel particulate filter system is meant to keep the emission system up and running. However, soot build up can intervene with that and affect performance. The scanner will detect problems in the DPF system to ensure your vehicle works well.

IMMO: This feature lets you make a unique key without which the ignition won’t start. It’s an excellent way of restricting unauthorized people from accessing the vehicle.

SAS: It will help reset SAS when you replace the steering or sensor.

BMS: After replacing a battery, you can reset it using this feature.

Basic Features: It can read engine light codes, freeze frame data, etc.

Vehicle Coverage

This heavy duty truck scan tool covers more than 80 US, Asian, and European brands that are obd2 compliant including heavy duty trucks.


*   Can be updated over WiFi.
*   230m Bluetooth range.
*   Can perform injector adjustment.
*   Supports heavy duty, medium, and light trucks.


*   Doesn’t support ABS/SRS.

Who Should Take The Tool?

Autel Maxisys CV MS908CV Heavy Duty Diagnostic Tool with J-2534 ECU Programming, BT, WiFi Connection caters to heavy duty truck owners who want to perform simple tasks on their own.

2. Truck Diagnostic Tool T71 Universal Diesel Heavy Duty V24 For Bus and Heavy Truck Diagnostic Scanner Tool For Benz/Isuzu/Cummins/Iveco/ Volvo Truck


T71 is a top notch truck diagnostic scanner that offers many basic functionalities to keep your vehicle up and running.


Read Engine Codes: This heavy duty truck code reader can diagnose engine light errors and tell you about the problem. You will be able to reset the light after fixing the problem.

I/M Readiness: This feature tells you if your car is emission ready or not. It will conduct a few sensor tests and determine if the output is enough to pass the test.

Reset MIL: It can reset malfunction indicator lamps and reset the light.

VIN: Once you plug the scanner into the port, it will save the truck’s information and auto detect the vehicle the next time you connect the scan tool.

Code Definitions: Beginners can have a hard time figuring out what the alphanumeric codes appearing on screen mean. You will, however, face no such problem using this tool as it provides explanations for codes.

Live Data: You can check live sensor data on the screen while driving to see how your vehicle is performing. It will show speed, load, fuel status, engine temp, and similar parameters.

Vehicle Coverage

It works on Benz, Isuzu, Cummins, Volvo and Iveco trucks since it supports J1939/J1587/1708 protocols only.


*   Software can be updated from the official website.
*   Large 2.8 LCD.
*   Shows live data stream.
*   Friendly user interface.


*   Requires flash programming to upgrade.

Who Should Take The Tool?

Truck Scan Tool T71 Universal Diesel Heavy Duty V24 For Bus and Heavy Truck Diagnostic Scanner Tool For Benz/Isuzu/Cummins/Iveco/Volvo Truck basic features which is why it is an ideal deal for beginners and DIYers.

3. Xtuner T1 Heavy Duty Truck Diagnostic Tool Auto Intelligent Diesel OBD Scanner Support WIFI


XTUNER T1 offers a mix of both basic and advanced features for trucks. It supports a wide array of heavy-duty trucks and has more than 1 GB of space to store data.


Basic Features: It can read CEL, freeze frame data. Moreover, it offers DTCs and has the ability to read information from the ECU.

You can also check the live data stream and use the auto VIN feature to make it easier to connect the unit.

Advanced Features: This scan tool offers many special functions such as DPF reset, vehicle settings, cylinder test, oil change, camshaft learning, adjusting exhaust pressure, fuel pump settings, etc.

Updating the tool to the latest version will allow you to use AC/heating settings, door modules, and music system settings as well.

Vehicle Coverage

The supported protocols are J1939, J1708 and J1587. Hence, this scanner will work on many trucks such as Bremach, Hino, Hyundai, Astra, ISUZU, Iveco,  Foton, Freightliner, Mack, MAN, Benz, DAF, Renault, Scania, Detroit, ERF, International, Caterpillar, Allison, Navistar, Diesel OBD, and Toy.


*   Supports wireless connectivity (VCI Bluetooth).
*   Free software update from the website.
*   Overvoltage protected.
*   Supports Ford trucks till 2017(new update).


*   Very expensive.

Who Should Take The Tool?

XTUNER T1 Heavy Duty Truck Diagnostic Tool Auto Intelligent Diesel OBD Scanner Support WIFI is a perfect fit for DIYers who want to know their truck better. Plus, thanks to a bunch of advanced features, it can be suitable for pros as well.

4. LAUNCH X431 HD Heavy Duty Truck Diagnostic Module X431 V+, X431 Pro3 V2.0


This Launch heavy duty truck scanner offers wireless connectivity via Bluetooth and covers a wide range of trucks.


CEL: It can read extensive fault codes and displays them with a detailed report on the screen. It generates a code that specifies what the problem is. Once you fix that problem, you’ll be able to reset the code using the scanner.

DTCs: This feature makes it easier to comprehend a fault code. It shows a detailed explanation of the code in simple English that makes it easy to reach the cause of the problem.

Live Data Stream: It shows live data on the screen including fuel status, speed, etc.

Special Repair Functions: With this diagnostic scanner, you’ll be able to perform a few special repair functions and ensure that your truck stays in good shape.

Vehicle Coverage

It supports a total of 38 brands and more than 68 models (US, EU, and Asian). It supports many heavy duty trucks such as BREMACH, DAF, ERF, JMC, ASTRA, FUSO, etc.


*   1-year warranty.
*   Free updates for 1 year.
*   Comes with 13 connectors.
*   Wide Bluetooth range.


*   Doesn’t work with Caterpillar.

Who Should Take The Tool?

LAUNCH X431 HD Heavy Duty Truck Diagnostic Module X431 v+, X431 Pro3 V2.0 offers repair functions and basic features which is why it is best suited for DIYers, beginners, and enthusiasts.

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