LAUNCH X431 PRO3S+ SMARTLINK HD Heavy Duty Truck Scanner Instruction Manual

1. Introduction

The LAUNCH X431 PRO3S+ SMARTLINK HD is a professional bidirectional diagnostic scan tool designed for both passenger and commercial vehicles (12V & 24V). This device offers comprehensive diagnostic capabilities, advanced service functions, and ECU coding, making it suitable for automotive repair shops and mechanics.

2. Setup and Unboxing

The LAUNCH X431 PRO3S+ SMARTLINK HD comes in a robust carrying case, organized into two boxes for various components. Ensure all items listed in the packing list are present before proceeding.

2.1. Package Contents (Box 1)

• X431 PRO3S+ Host (Display Tablet)
• SmartLink C V2.0 (VCI)
• HD15F to OBDII 16 Connector
• UK Plug, EU Plug, US Plug (Power Adapters)
• DB15F to HD15F Cable
• Network Cable
• Type A - Type B USB Cable
• Type A - Type C USB Cable
• PIN envelope
• Quick Start Guide

2.2. Package Contents (Box 2 - Connectors)

• BENZ-38, NISSAN-14+16, BENZ-14, BMW-20, CHRYSLER-6, FORD-6+1, GM/VAZ-12, HONDA-3, KIA-20, MITSUBISHI/HYUNDAI-12+16, TOYOTA-17, TOYOTA-22, BENZ-14, CAT-9, HYUNDAI-16, ISUZU-20, IVECO-30, IVECO-38, JUMPER 10, MAN-12, MAN-37, MITSUBISHI-12+16, RENAULT-12, Type II OBD 9, VOLVO-8 (Various Connectors)
• Power Cable
• Cigarette Lighter Cable
• Switching Cable 1-9
• OBD 16 connector
• OBD 6 connector

Figure 1: The LAUNCH X431 PRO3S+ SMARTLINK HD scanner and its comprehensive set of accessories, including various connectors and cables, neatly organized within its durable carrying case.

3. Operating Instructions

3.1. Initial Power-On and Software Update

Upon first use, power on the X431 PRO3S+ display tablet. Connect it to a stable Wi-Fi network. Navigate to the "Software Update" icon on the main menu to download and install the latest software versions for all supported vehicle makes and functions. Regular updates ensure compatibility with the newest vehicle models and features.

3.2. Connecting to a Vehicle

1. Locate the vehicle's OBD-II diagnostic port (typically under the dashboard).
2. Connect the appropriate connector (e.g., HD15F to OBDII 16 Connector for standard OBD-II vehicles, or a specific adapter from Box 2 for older/heavy-duty vehicles) to the vehicle's diagnostic port.
3. Connect the SmartLink C V2.0 VCI to the diagnostic connector.
4. Ensure the SmartLink C V2.0 is paired via Bluetooth or connected via USB to the X431 PRO3S+ display tablet.
5. Turn the vehicle's ignition to the "ON" position (engine off).

3.3. Diagnostic Functions

The device offers several diagnostic methods:

• Intelligent Diagnose: Automatically identifies vehicle VIN, model, year, and engine type, then performs a comprehensive health report across all systems. Requires internet connection.
• Local Diagnose: Allows manual selection of vehicle make, model, and year to perform diagnostics without an internet connection.
• VIN Scan: Supports automatic VIN detection (Auto VIN Detect) or manual VIN input.

3.3.1. Topology Mapping

The Intelligent Diagnose feature includes an intuitive Topology Mapping display. This visual representation shows the communication structure between vehicle modules (ECUs) and highlights their status (Normal, Abnormal, Scanned, Not Scanned, Not Equipped) using color-coding. This allows for quick identification of problematic modules and their associated Diagnostic Trouble Codes (DTCs).

3.3.2. Full System Scan

Performs a comprehensive scan of all available electronic control units (ECUs) in the vehicle, including Engine, Transmission, ABS, SRS, BCM, TPMS, and more. It reads and clears DTCs, displays live data streams, and retrieves freeze frame data.

3.4. Special Functions (60+ Services)

The X431 PRO3S+ SMARTLINK HD supports over 60 maintenance and reset functions. These functions vary by vehicle make, model, and year. Examples include:

• Oil Lamp Reset Service
• EPB (Electronic Parking Brake) Reset
• BAT (Battery) Service (BMS)
• DPF (Diesel Particulate Filter) Service
• SAS (Steering Angle Sensor) Reset
• ABS Bleeding
• Fuel Injector Coding
• TPMS (Tire Pressure Monitoring System) Service
• Throttle Adaptation
• AFS (Adaptive Front-lighting System) Headlamp Reset
• Sunroof Initialization
• Suspension Reset
• Gearbox Reset & Gear Learning
• A/F Reset (Air/Fuel Ratio)
• AdBlue Reset (Diesel Engine Exhaust Gas Filter)
• Nox Sensor Reset
• Stop/Start Reset
• Seat Calibration
• Transport Mode Deactivation
• Windows Calibration
• AC System Relearn/Initialization
• High Voltage Battery Diagnostics (for New Energy Vehicles)
• GPF Regeneration (Gasoline Particulate Filter)
• Camshaft/Crankshaft Sensor Relearn
• Immobilizer Reset
• Key Programming (with optional X-PROG3 module)

3.5. Bi-directional Control (Active Test)

This function allows the diagnostic tool to send commands to vehicle systems or components to test their operational status. This helps in quickly pinpointing vehicle problems without extensive disassembly. Examples include:

• For Cars: Injector Buzz Test, Idle Speed Adjustment, Window/Mirror/Door Test, Fuel Pump/Solenoid Valve Tests, A/C Compressor Activation, Radiator Fan Activation, Throttle Modulation, Acceleration Device Test, Power Balance Test.
• For Heavy Duty Trucks: Cylinder Cut-out Test, Compression Test, Injector Volume Commands, Injector Coding, Rail High Pressure Test, SCR Catalyst Regen, DPF Regen, VGT Calibrations, Aftertreatment Reset, Parameter Changing, Glow Relay Activation Check.

3.6. ECU Coding and J2534 Reprogramming

The X431 PRO3S+ SMARTLINK HD supports ECU coding functions for matching, learning, or coding newly replaced ECUs. It can customize vehicle settings, reset hidden features, and adapt data for certain components after repairs. The SmartLink C V2.0 VCI also functions as a J2534-Compliant VCI, allowing users to perform J2534 reprogramming for compatible vehicles (e.g., Toyota, Honda, Volvo, VW, BMW, Ford, GM, Benz, Subaru, Chrysler, Land Rover).

3.7. ADAS Calibration

Compatible with the LAUNCH X431 ADAS Mobile, this tool can calibrate advanced driver-assistance systems (ADAS) such as ACC (Adaptive Cruise Control), AEB (Autonomous Emergency Braking), LKA (Lane Keeping Assist), LDW (Lane Departure Warning), and AVM (Around View Monitor) systems. This enhances driver, passenger, and pedestrian safety.

3.8. FCA AutoAuth & Renault Security Gateway

The device provides access to the Security Gateway Module (SGM) on 2017 and newer Fiat/Chrysler/Dodge/Jeep vehicles (2017-2026) for diagnostics and special functions. It also supports Renault Security Gateway functions for models after 2019.

3.9. Remote Diagnosis & Diagnostic Report

The remote diagnosis feature allows technicians to receive remote assistance from experts. Diagnostic reports can be generated with one-click, emailed, or printed for record-keeping or customer sharing.

4. Maintenance

4.1. Software Updates

The LAUNCH X431 PRO3S+ SMARTLINK HD includes 2 years of free software updates. After the free update period, the device remains fully functional offline, but new updates will require a subscription. Updates are released weekly to ensure the broadest vehicle coverage up to 2026 models.

4.2. Battery Management

The display tablet is equipped with a 6300mAh lithium-ion battery, providing up to 10 hours of continuous operation. Ensure the device is charged regularly using the provided power adapters.

5. Troubleshooting

For common issues, refer to the "DTC Help" and "Google Search" features directly from the diagnostic screen. This provides immediate access to repair guides and solutions. For complex issues, utilize the "Diagnostic Feedback" function to send messages to LAUNCH technicians for prompt support.

• "DTC Help" & "Google Search": One-click access to diagnostic trouble code explanations and potential fixes.
• Diagnostic Feedback: Send issue reports directly to LAUNCH technicians for assistance.
• Remote Diagnosis: Allow a mechanic to perform remote diagnostics using an access code (availability may vary by region).

6. Specifications

7. Warranty and Support

The LAUNCH X431 PRO3S+ SMARTLINK HD comes with a 5-year warranty and 2 years of free software updates. Technical assistance is available 24/7/365. The product also includes a 60-day refund/return policy and 24-month maintenance.

For technical support, please contact cardiag-aftersales@hotmail.com.