iCarsoft HD V4.0 – Heavy Duty Truck & Commercial Vehicle Diagnostic Tool
The iCarsoft HD V4.0 is the latest generation heavy-duty diagnostic scanner, developed as the enhanced successor to the HD V3.0. Designed for commercial trucks, buses, diesel vehicles, and fleet maintenance, it delivers comprehensive diagnostics with improved hardware, a larger 5-inch touchscreen, and convenient Wi-Fi software updates.
Built for professional workshops, truck mechanics, fleet operators, and serious DIY users, the HD V4.0 helps identify faults quickly, reduce vehicle downtime, and simplify routine maintenance across a wide range of heavy-duty vehicles.
Full System Heavy Duty Diagnostics
The HD V4.0 performs comprehensive diagnostics across supported commercial vehicle systems, including Engine, ABS, Airbag, Transmission, and many additional electronic control modules.
Diagnostic capabilities include:
- Read ECU Version Information
- Read Diagnostic Trouble Codes (DTCs)
- Clear Fault Codes
- View Live Data Streams
- Real-Time ECU Monitoring
- O2 sensor test to check fuel efficiency and vehicle emission
- EVAP test for fuel tank system
These functions help technicians quickly identify system faults, monitor vehicle performance, and make accurate repair decisions.
Available functions vary depending on the vehicle’s make, model, and year.
Extensive Heavy Duty Vehicle Coverage
The HD V4.0 comes pre-installed with software for 37 leading heavy-duty truck, commercial vehicle, and diesel engine manufacturers, including:
- Cummins
- Caterpillar
- Detroit Diesel
- Mercedes-Benz Heavy Duty
- Volvo Trucks
- Scania
- DAF
- MAN
- Mack
- Freightliner
- Kenworth
- Peterbilt
- International
- Iveco Diesel
- Hino
- Isuzu
- Fuso
- Hyundai Commercial
- Renault Trucks
- Tata
- UD Trucks
…plus many more supported commercial vehicle manufacturers.
This broad coverage makes the HD V4.0 suitable for workshops servicing mixed heavy-duty fleets.
8 Essential Service Functions
The HD V4.0 includes eight commonly used maintenance functions to assist with routine servicing and repairs:
- DPF Regeneration
- Oil Reset
- Injector Coding
- Clutch Matching
- Brake Pad Reset
- SCR Reset
- Speed Limiter Reset
- Cylinder Cut-Out Test
These service functions help improve workshop efficiency while reducing maintenance time on supported vehicles.
2-in-1 Heavy Duty & Passenger Vehicle Scanner
The HD V4.0 is more than a commercial truck scan tool. It also supports engine diagnostics for compatible 12V passenger vehicles using the standard OBD2 interface.
Supported OBD2 functions include:
- Read & Clear Fault Codes
- Turn Off Check Engine Light (MIL)
- Live Data Monitoring
- Freeze Frame Data
- Vehicle Information
- O2 Sensor Testing
- EVAP System Testing
- I/M Readiness Status
- On-Board Monitoring Tests
This dual-purpose functionality makes the HD V4.0 an excellent diagnostic solution for workshops servicing both heavy-duty and passenger vehicles.
Lifetime Free Wi-Fi Updates
The iCarsoft HD V4.0 includes lifetime free software updates via Wi-Fi, ensuring continued compatibility with newer vehicles and improved diagnostic functions. Updates can be installed quickly with a single click once connected to a Wi-Fi network, eliminating ongoing subscription costs.
Included Heavy Duty Adaptors
To maximise vehicle compatibility, the HD V4.0 includes three heavy-duty diagnostic adaptors:
- OBD-6
- OBD-9
- CAT-9
These adaptors allow the scanner to connect with a wide range of commercial vehicles straight out of the box.
Built for Modern Heavy Duty Workshops
Whether you’re maintaining a single truck, servicing a commercial fleet, or running a professional repair workshop, the HD V4.0 delivers powerful diagnostics, broad heavy-duty vehicle coverage, essential service functions, and lifetime software updates in one easy-to-use package.
Its combination of full-system diagnostics, expandable software, 2-in-1 vehicle support, and professional-grade functionality makes it an ideal investment for anyone working with modern commercial vehicles.
NOTICE: PRODUCT LIMITATIONS – Read Before Purchase
*Some features will not be available on each make and model. Each make and model of car is different when it comes to which functions will and won’t work on that vehicle. No one scan tool will have every function for every vehicle. This is not indicative of a ‘faulty scanner’ as these restrictions were put in by either the dealer or manufacturer of your vehicle. Please get in touch with us first to ensure compatibility when in doubt. A special software update may be required to enable some features and functions. The software update is available in Windows only. It is the responsiblity of the buyer to execute and apply the software updates. A return with a reason “the device was not updated” will be subject to our Return Policy and Terms and Conditions as this does not constitute a “faulty” or “defective” device. Video and photo proof is required for any claim of this product as not working. The video proof must clearly show and demonstrate the claim. Returns and refunds due to incompatibility (without or against OBD2 Australia advise, or refusal to execute troubleshooting/provide the required proof) will be subject to our Returns Policy/Terms. OBD2 Australia will NOT ACCEPT any change of mind returns for Icarsoft products once it has been opened and/or the licence activated.
*Some features may not be accessible due to security restrictions on your vehicle. This is not indicative of a ‘faulty scanner’ as these restrictions were put on by either the dealer or manufacturer of your vehicle. As such, returns and refunds for this reason will be subject to our Returns Policy as stated on our Terms & Conditions. OBD2 Australia is not privy to what these restrictions are, as it varies per brand, model, and year of vehicle as well as the dealership it came from. This is something that is beyond our control, and as such not a case of ‘Not as described’ or ‘Unfit for purpose’ as every buyer is informed of this limitation prior to purchase.
Very surprised and love the product so far.