iCarsoft CR MAX Enhanced Multi-System OBD2 Tool Bi-Directional 40 Reset Modes

iCarsoft HD V4.0 Heavy Duty Truck Scanner: Comprehensive Diagnostic Tool with 8 Reset Functions

The iCarsoft HD V4.0 is a versatile, heavy-duty truck scanner designed for professional-grade diagnostics on both commercial trucks and 12V passenger vehicles. This full-system diagnostic tool supports over 37 truck brands, including Cummins, Detroit, Caterpillar, and Hino, delivering in-depth analysis and maintenance capabilities. Equipped with advanced features like DPF Regeneration, Injector Coding, and Limit Setting, it serves as a reliable 2-in-1 code reader that minimizes downtime and optimizes vehicle performance. Whether you’re a fleet manager, independent mechanic, or truck owner, the HD V4.0 empowers you to perform OEM-level services efficiently and cost-effectively.

Latest Innovation

The iCarsoft HD V4.0 represents the pinnacle of diagnostic technology, offering upgraded OBD2 functions tailored for heavy-duty trucks and standard 12V vehicles. This innovative scanner provides full-system diagnostics and five essential reset maintenance services across 37 major truck brands and a wide array of models. It seamlessly supports a broad spectrum of communication protocols, including SAE-J1850 PWM, SAE-J1850 VPW, ISO 9141, ISO-14230-2 ISO, ISO 14230-4 KWP, ISO 15765-4 CAN, J1708, J1939, CANFD, and more. The device comes bundled with specialized adapters such as OBD-6, OBD-9, CAT-9, and OBD1, ensuring compatibility with diverse vehicle architectures.

What sets the HD V4.0 apart is its user-centric design: a responsive touch screen combined with intuitive button controls for effortless navigation, even in challenging workshop environments. WiFi-enabled updates keep the software current with the latest vehicle data and protocols, doubling the device’s convenience and longevity. Powered by premium hardware—including a 5-inch high-resolution display (854×480 pixels), Android 8.1 operating system, 2GB RAM + 64GB ROM storage, and a robust 3150mAh/3.8V battery—the HD V4.0 delivers smooth, lag-free performance during complex module diagnostics. This configuration not only handles intensive scans but also supports multitasking, making it an indispensable tool for modern automotive professionals.

Advanced DPF Regeneration & Emissions Management

The HD V4.0 delivers professional-grade DPF (Diesel Particulate Filter) regeneration, designed to resolve one of the most critical diesel maintenance challenges. Unlike basic scan tools, it performs deep DPF diagnostics and controlled active regeneration, effectively burning off soot buildup, resetting DPF clog values, synchronizing the service counter, and recalibrating pressure sensors for accurate readings.

With real-time monitoring of backpressure, exhaust temperature, and differential pressure, technicians can take proactive action to improve engine efficiency, reduce emissions, and extend DPF lifespan. After exhaust sensor replacement or PM trap service, the HD V4.0 ensures proper recalibration to prevent fault codes and maintain compliance with Euro 6 and EPA standards, minimizing downtime and costly repairs.

◆ Active DPF Regeneration – Forces controlled soot burn-off to clear blockages
◆ Sensor Recalibration – Relearns pressure and temperature sensors after service
◆ Live DPF Data Monitoring – Tracks soot load, efficiency, and filter status
◆ DPF Service Reset – Aligns maintenance intervals with OEM requirements

Full-System Heavy-Duty Diagnostics Made Easy

The iCarsoft HD V4.0 heavy-duty truck scanner provides comprehensive all-system diagnostics, giving access to nearly every major and sub-system for fast and accurate fault detection. It reads and clears DTCs, displays live data, retrieves ECU information, and turns off MIL warning lights, helping vehicles return to service quickly and safely.

Supported systems include Engine, TCM, ABS, Brake Control, Emissions, DPF/DEF/SCR, BCM, Airbag, Fuel, Coolant, and Intake systems. Detailed fault descriptions and graphical live data allow technicians to pinpoint issues such as sensor failures, hydraulic faults, or electronic malfunctions with confidence—reducing diagnostic time and repair costs.

◆ Engine System – Fuel injection timing, misfire detection, performance analysis
◆ ABS & Brake Control – Solenoid testing and hydraulic pressure monitoring
◆ Emissions & Aftertreatment – DPF, SCR, EGR, and DEF diagnostics
◆ Safety & Body Systems – Airbag readiness checks and BCM fault isolation

With bi-directional control and active tests, the HD V4.0 supports proactive maintenance across a wide range of heavy-duty trucks, construction equipment, and commercial vehicles, making it a powerful and reliable diagnostic solution for professional workshops and fleet operators.

8 OEM-Level Maintenance Services

The HD V4.0 delivers OEM-standard maintenance functions, allowing technicians to complete advanced service procedures without dealer equipment. These services clear warning lights, reset adaptive values, recalibrate sensors, and match components to maintain peak performance and fuel efficiency.

◆ DPF Regeneration – Forces regen cycles and resets DPF data after repairs
◆ Oil Reset – Clears oil service indicators after maintenance
◆ Injector Coding – Matches new injectors to the ECU for precise fueling
◆ Clutch Matching – Relearns clutch values for smooth operation
◆ Brake Pad Reset – Resets wear sensors after pad replacement
◆ SCR Reset – Reinitializes the DEF system after service
◆ Speed Limit Reset – Adjusts or restores governor settings
◆ Cylinder Cut-Out Test – Identifies faulty cylinders quickly

These functions help keep vehicles operating within OEM specifications, improving reliability and reducing operating costs.

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2-in-1 OBD2 Scanner for Trucks & 12V Cars

The HD V4.0 is a versatile 2-in-1 diagnostic scanner for heavy-duty trucks and standard 12V passenger vehicles. Through the OBD interface, it provides full OBD2/EOBD/HD-OBD support.

◆ Read & clear engine fault codes
◆ View live data, freeze frames, and I/M readiness
◆ Perform EVAP tests and O2 sensor checks
◆ Access onboard monitors and vehicle information
◆ Built-in DTC lookup with multilingual support

This dual compatibility makes the HD V4.0 an ideal solution for workshops handling mixed fleets of trucks and cars, enabling fast, accurate diagnostics across multiple vehicle types.

Battery Voltage Monitoring

Maintaining electrical reliability is essential for modern vehicles, and the HD V4.0 delivers this through advanced battery voltage monitoring. Using real-time OBD diagnostics, it checks battery health, charge level, and cranking voltage, helping detect weakening batteries before they cause no-start issues or roadside breakdowns. This is especially critical for heavy-duty trucks, where constant electrical load accelerates battery and alternator wear, allowing early intervention and lower maintenance costs.

The exclusive Pin Detection Function further enhances diagnostic efficiency by automatically checking OBD port voltage, verifying port integrity, and identifying the correct communication protocol (J1939, J1708, ISO). This prevents “no communication” errors, speeds up diagnostics on unfamiliar vehicles, and ensures reliable connectivity across global truck platforms—making the HD V4.0 a highly dependable heavy-duty diagnostic scanner for workshops and roadside service.

 

Eight Resets

Clutch Matching

 Brake-Pad Reset

 

Cluth Matching

 

Brake-Pad Reset

 

Injector Coding 

Oil Reset

Cylinder Cut Out 

Sp-eedLi.mit Service 

C. -R Service

 

iCarsoft HD V4.0 – Professional Heavy-Duty Truck Diagnostic Tool

Keep your fleet running efficiently with the iCarsoft HD V4.0, an all-in-one diagnostic scanner designed for roadside and workshop use. It delivers fast, accurate diagnostics without guesswork, helping reduce downtime and repair costs.

Full-System Diagnostics

Access all major ECU modules for complete vehicle health checks.
◆ Engine, Transmission, ABS, Brake, SCR/DEF, Battery, and more
◆ Read and clear fault codes, view live data, and retrieve ECU information

Essential Reset & Service Functions

Perform key maintenance functions after repairs without visiting a dealership.
◆ DPF Regeneration
◆ Oil Service Reset
◆ Injector Coding
◆ Clutch Matching
◆ Brake Pad Reset
◆ SCR System Reset
◆ Speed Limiter Adjustment
◆ Cylinder Cut-Out Test

Smart Pin Detection

Eliminates “no communication” issues before diagnostics begin.
◆ Checks OBD port health and voltage
◆ Auto-detects protocols (J1939, J1708, ISO)
◆ Ideal for roadside repairs and unfamiliar vehicles

Real-Time Live Data

Monitor critical parameters directly from the ECU to quickly diagnose power loss, limp mode, sensor failures, or emissions issues.

Built for Trucking Environments

◆ Rugged, impact-resistant design
◆ Glove-friendly touchscreen and physical buttons
◆ Fully portable, no laptop required

The iCarsoft HD V4.0 enables quick diagnostics and on-the-spot resets, helping fleets minimize breakdowns, avoid towing, and get trucks back on the road faster with confidence.