Broad Vehicle Coverage: Pre-Installed with 37 Top Brands

One of the biggest challenges in heavy duty diagnostics is compatibility across diverse vehicle makes and models. The HD V4.0 eliminates this hassle by coming pre-loaded with software for 37 leading commercial vehicle brands. From industry giants like Cummins, Mercedes-Benz (HD), Volvo (HD), and Scania to specialized names such as Allison, Bendix, and WABCO_ABS (HD), this tool covers engines, transmissions, and complex systems for trucks, buses, and heavy machinery worldwide.

Need coverage for a brand not in the pre-installed list? No problem. The HD V4.0 offers expandable software packages for additional brands, available at an extra cost. Simply contact iCarsoft or your local agent to customize your tool to your fleet’s unique needs.

8 Hot Service Reset Functions: Save Time and Repair Costs

Beyond basic diagnostics, the HD V4.0 shines with its 8 essential service reset functions—designed to tackle common maintenance tasks without relying on expensive dealer visits. These functions include:

• DPF Regeneration: Keep diesel particulate filters clean and prevent performance drops.
• Oil Reset: Reset maintenance reminders after an oil change for accurate service tracking.
• Injector Coding: Calibrate new injectors for optimal fuel efficiency and engine performance.
• Clutch Matching: Ensure smooth clutch operation in manual and automated transmissions.
• Brake-Pad Reset: Reset wear indicators after replacing brake pads to restore full functionality.
• SCR Reset: Maintain selective catalytic reduction systems for emissions compliance.
• Speed Limit Reset: Adjust speed restrictions to match operational needs.
• Cylinder Cut Out Test: Diagnose engine misfires by isolating individual cylinders.

These features make the HD V4.0 more than just a scanner—it’s a maintenance powerhouse that reduces downtime and keeps your vehicles road-ready.

2-in-1 Versatility: Heavy Duty + 12V Vehicle Compatibility

Why invest in multiple tools when one can do it all? The HD V4.0 is a 2-in-1 OBD scanner, supporting both heavy duty vehicles and standard 12V cars/trucks via the OBD interface. For 12V vehicles, it handles:

• Reading and clearing fault codes to turn off the Malfunction Indicator Light (MIL).
• O2 sensor tests to optimize fuel efficiency and reduce emissions.
• Freeze frame data and vehicle information retrieval for accurate troubleshooting.
• EVAP tests to check fuel tank system integrity (critical for emissions compliance).
• I/M readiness status checks to ensure your vehicle passes inspections.

This versatility makes it ideal for shops or individuals who work with both commercial and personal vehicles.

Lifetime Free Updates: Stay Cutting-Edge Without Extra Costs

In the fast-evolving world of vehicle technology, outdated software can render a diagnostic tool obsolete. The HD V4.0 solves this with lifetime free online updates—a standout feature in a market where many scanners charge for upgrades. Simply connect to Wi-Fi, and with one click, you’ll access the latest software, improved compatibility, and new features. No hidden fees, no subscription traps—just continuous value.

User-Friendly Design: Multi-Language Support and Ready-to-Use Accessories

The HD V4.0 is built for global use, supporting 28 languages including English, German, Spanish, French, Traditional Chinese, Arabic, and more. This ensures technicians worldwide can operate the tool with ease.

Out of the box, you’ll find everything you need to get started: a durable carry case, main unit, main cable, and 3 essential OBDI adapters (OBD-6, OBD-9, CAT-9). No need to hunt for extras—just unbox, connect, and diagnose.

Powerful Specs for Reliable Performance

Under the hood, the HD V4.0 boasts solid hardware to handle heavy duty demands:

• 5-inch touchscreen for intuitive navigation
• Android 8.1 operating system for smooth performance
• 2GB memory + 64GB storage for quick data processing
• 3150 mAh battery for portability (no need for constant plugging in)
• Bluetooth 5.0 and Wi-Fi for seamless updates and connectivity
• Wide working temperature range (-10°C ~ 50°C) for use in harsh environments

It supports all major heavy duty protocols, including J1708, J1939, and CANFD, ensuring compatibility with modern and older vehicles alike.

Who Should Choose the HD V4.0?

Whether you’re maintaining a fleet of trucks, repairing diesel engines, or simply need a reliable tool for personal and commercial vehicles, the iCarsoft HD V4.0 delivers. Its combination of broad brand coverage, essential service functions, 2-in-1 versatility, and lifetime updates makes it a smart long-term investment.

Don’t let outdated diagnostics hold you back. Upgrade to the iCarsoft HD V4.0 today and keep your heavy duty vehicles running at their best—efficiently, safely, and cost-effectively.