2026 LAUNCH X431 PRO3S+ EV Diagnostic Scanner for EV Diagnostics & Battery Pack Analysis Supports Topology 40+ Service Functions CAN FD DoIP

Description

LAUNCH X-431 PRO3S+ EV Diagnostic Tool All-in-One EV & Battery Pack Diagnostic Solution for Professional Technicians

The LAUNCH X-431 PRO3S+ New Energy Diagnostic Tool redefines electric vehicle maintenance, combining full vehicle diagnostic capabilities with precise battery pack testing in a single, powerful device.
Equipped with a high-performance Android 10.0 system, industry-leading SmartLink C V2 connector, and dual local/remote diagnostic modes, it delivers OEM-level accuracy, fast fault localization, and comprehensive coverage for 95%+ new energy vehicles—making it an indispensable tool for modern automotive repair shops.

Highlights:

✅ 2-in-1 EV & Battery Pack Diagnosis – Full system vehicle diagnostics + multi-mode battery pack testing for complete EV maintenance
✅ Local & Super Remote Dual Diagnostic Modes – Support remote technical support, OEM special diagnostic tools, and 3rd-party diagnostic device connection
✅ 95%+ New Energy Vehicle Coverage – Compatible with BYD, Xpeng, Leapmotor, Neta, Zeekr, BAIC, GAC and more; regular model updates
✅ Precise Battery Pack Analysis – Real-time cell voltage/temperature reading, smart voltage difference calculation, and detailed battery status reporting
✅ OE-Level Diagnostic Functions – Topology mapping, one-click fast scan, fault guidance, SGW gateway support, and pin detection
✅ Powerful Hardware & System – 10.1″ sun-readable HD screen, Android 10.0, 4GB+64GB, dual-band Wi-Fi, and rugged industrial design
✅ Multi-Protocol Support – CAN2.0, CANFD, DOIP, J2534, D-PDU; stable connection with DB15 upgraded interface
✅ High Expandability – 13+ optional extension modules (ADAS, TPMS, oscilloscope, IMMO programmer, etc.)
✅ Large Amount of Repair Resources – X431 FIX database with repair cases, DTC help, technical manuals, and training videos (X431 fix needs to be purchase extra in X431 App- Mall)
✅ One-Click Software Updates – Seamless upgrades for system, vehicle software, and firmware; fast market follow-up

Features:

• 2 Years Free update, 2 years later, the renewal service cost is 339 USD/1 year.
• Global version.
• J2534 ECU Programming + ECU Coding: Powerful SmartLink C support J2534 Programming with OE software.
• 50+ Special EV Functions
• Topology Mapping: It provides a comprehensive view of a vehicle’s data bus configurations, improving repair efficiency by up to 90%. With just one click, you can gain insights into the layout of a vehicle’s system and clear any troubles. Compatibility with your vehicle’s brand should be verified by checking the VIN before purchasing.
• Bi-directional Control: Use mutual signal sending and receiving to pinpoint your vehicle problems within 5 minutes, no need to tear the vehicle into parts.
• Online Functions: Give you quick access to obtain massive online data from the OEM server. Online ECU Coding compatible with VW, Audi, BMW, Porsche. Online Calibration; Online Code Search; Online Fedback; Online Repair Resource.
• All System Full-function Diagnostics: Cover all the available on-board systems; quickly scan codes and clear codes to recover vehicle performace.
• Reflash the Hidden Functions: Activate the vehicle potential functions as the users’ like. Expand your businesses on advanced models and increase your profits.
• Super SmartLink C VCI: J2534/DOIP/CANFD/HD Truck protocols compliant. Bring 4x faster diagnostic speed and data communication.
• Universal Vehicle Coverage: Cover 99% of American, Asian, European models and 10000+ vehicles (1996-2026).
• VAG Guided Functions; Auto VIN; Diagnostic Report Printing; One-click Updating; Data Recording; 4-in-1 Data Stream Display; And More.
• FCA AutoAuth Access: Bypass SGM in FCA vehicles seamlessly and within seconds; works on 2017 and later Chrysler, Dodge, Jeep, Alfa Romeo, Fiat, etc. *Need AutoAuth subscriptions in the ”Mall” on scanner.

Outstanding Hardware Specifications:

– Android 10.0 | 10.1″ Sun-readable HD Screen | 4GB+64GB
– Wi-Fi: 2.4GHz & 5GHz Dual-Band
– 4GB RAM + 64GB ROM
– Battery: 6300mAh @7.6V (long-lasting battery life)
– Smartlink C V2.0 VCI
– Smartlink Memory & Storage: 256M RAM + 8GB ROM

Why Choose LAUNCH X-431 PRO3S+ New Energy Diagnostic Tool?

LAUNCH is a global leader in automotive diagnostic technology, and the X-431 PRO3S+ New Energy Tool is engineered for professional EV technicians. It combines OEM-level diagnostic accuracy with affordable versatility, eliminating the need for multiple separate tools for EV and battery pack repair. With regular updates, free repair resources, and global technical support, it’s not just a tool—it’s a long-term investment for your repair shop’s success in the new energy vehicle era.

LAUNCH X-431 PRO3S+ EV Support Extension Modules: 
(So that you can perform more comprehensive vehicle inspections with LAUNCH X431 PRO3S+, NEED TO PURCHASE EXTRA)

LAUNCH X-431 PRO3S+ EV Diagnostic Tool Core Features & Functions

1. Comprehensive New Energy Vehicle Full System Diagnosis- EV Diagnose

By comparing the differences between new energy vehicles and traditional vehicles, the diagnostic software logic has been optimized in terms of overall vehicle diagnostics, improving diagnostic speed while ensuring accuracy and enhancing the diagnostic experience. Currently, diagnostic software has been developed for multiple vehicle models.

Optimized diagnostic software logic for EVs (vs traditional fuel vehicles) ensures higher speed and accuracy while maintaining OE-level diagnostic depth.

• Wide Vehicle Coverage: 95%+ new energy models (Chinese, European, American, Asian EVs); includes BYD, Xpeng, Zeekr, Audi EV, Porsche EV, Tesla, BAIC, GAC, etc. More models are continuously being updated.
• OE-Level Visualization: Graphical display of the entire vehicle system structure via topology mapping; clear identification of normal/abnormal/scanned/unscanned modules
• Fast Fault Localization: One-click high-speed scan, gateway scan, and smart detection; step-by-step diagnostic plans to guide repairs
• Real-Time Data Stream: Precise reading of vehicle electrical parameters (battery temp/voltage, motor data, HV system status) with data recording, comparison, and graph display
• OBD Pin Detection: Tests OBD-II diagnostic socket pin voltage and supported protocols to quickly judge interface faults

2. Professional Battery Pack Diagnosis (3 Testing Modes)

Specialized battery pack testing with a full set of dedicated connectors for safe, accurate, and flexible operation— the core of EV fault diagnosis.

• 3 Diagnostic Modes: OBD diagnosis (via standard OBD-16 port); dedicated harness diagnosis (plug-and-play); jumper diagnosis (for non-standard battery pack interfaces)
• Detailed Battery Data: Reads battery pack module count, SOC, SOH, total voltage/current, and single cell voltage/temperature for all cells
• Smart Analysis: Automatic calculation of cell voltage difference and temperature difference; fast positioning of abnormal battery cells/modules
• Diagnostic Reports: Generates professional battery test reports with one click; supports saving, sharing (QR code), and printing for easy repair records and customer communication

Through battery pack data streams, the cause of faults can be precisely located, improving diagnostic and repair efficiency.

Can Bus Pin Detection
Used to detect the voltage of the pins on the vehicle’s OBD-II diagnostic socket and the supported protocol types, helping technicians determine whether the OBD-II diagnostic interface has a fault.

Supports generating diagnostic reports, as well as report sharing and printing.

3. Local & Super Remote Dual Diagnostic Modes

Flexible diagnosis to meet all working scenarios, perfect for on-site repair and remote technical support.

• Local Diagnosis: Bluetooth/wired connection for on-vehicle testing; stable and low-latency
• Super Remote Diagnosis: Ethernet-based remote service; supports:✔ X431 series diagnostic devices mutual connection✔ OEM special diagnostic tool remote access✔ 3rd-party diagnostic device remote support✔ Professional remote technician service request

* Super Remote Diagnosis: USA, Canada, Mexico, Columbia, Australia, Brazil, Japan are not supported at the moment.

Multiple Battery Pack Diagnostic Methods

Dedicated Harness Diagnosis: Diagnosis using dedicated battery pack connectors, simple and safe, plug-and-play.
Jumper Diagnosis: When no standard battery pack interface is available, connect to the battery pack interface according to the diagnostic software instructions.
OBD Diagnosis: Battery pack diagnosis via the vehicle’s OBD-16 interface.

The battery pack is a key component of EVs. Testing the battery pack is one of the important steps in EV inspection. Using the battery pack diagnostic software, you can quickly read battery pack information, including but not limited to the number of battery pack modules, SOC, SOH, current temperature, etc. Additionally, it can deeply read the voltage and temperature values of individual cells within each module, helping technicians quickly understand the battery pack status and providing guidance for subsequent repairs.

4. Rich Special Functions for New Energy Vehicles

Covers all essential EV maintenance and repair functions, plus traditional vehicle special functions—one tool for all needs.

For EV:
EV air conditioning compressor testing, coolant replacement, high voltage power‑off(HVPO), on‑board charger offline testing(OBC Test), DC‑DC converter offline testing(DCDC Test), 48V mild hybrid component testing(48V MHEV Test), chip data repair,

For Automotive:
Maintenance light reset, throttle matching, steering angle reset, brake pad reset, tire pressure reset, immobilizer matching, ABS bleeding, battery matching, gear learning, injector coding, sunroof initialization, headlight matching, suspension matching, transmission matching, exhaust gas recirculation, window calibration, seat calibration, tire modification, language setting, A/F adjustment, electronic water pump activation, transport mode deactivation, start‑stop setting, automatic air conditioning initialization, engine power balance, high‑voltage battery health detection, intelligent cruise control system calibration, motor angular position sensor calibration, and other special functions. (50+ total functions).

NOTE: *>>> [Explore More than 100+ Special Services]

LAUNCH X431 pro3s+elite bidirectional tool gives you the ability to use professional level relearn procedures to complete repairs or maintenance, to meet your need in the most degree. Not only you can find 60+ Hot Special Reset in “Service Function” application on home page, but you can also find more Special Reset on “Local Diagnose” > “Choose brand & year” > “Automatically Search” > “System Selection> “Special Function“, you will find more than 100+ hidden advanced functions for specific models under vehicle menu.
Explore more service functions by accessing menus of Vehicle Brand -> System Diagnostics -> Special Function.

5. Multi-Protocol & Stable Connection

Supports all mainstream automotive communication protocols, compatible with new and old EV models, with upgraded hardware for more reliable connection.

• Protocol Support: CAN2.0, CANFD, DOIP, J2534, D-PDU (meets international industry standards)
• Upgraded Interface: OBD16 replaced with DB15 for a stronger connection; screw-fixed test lines to prevent disconnection during operation
• Enhanced Signal & Heat Dissipation: Optimized Wi-Fi antenna/module for better signal; additional heat dissipation holes for stable long-time operation

6. High Expandability & Versatility

Easily expand functions with 13+ optional extension modules and software packages—adapt to all repair scenarios.

• Hardware Extensions: ADAS calibration, TPMS programming, oscilloscope (O2-1/O2-2), sensor box (S2-2), video scope (VSP600), battery tester (BST360), IMMO programmer, key programmer, multimeter, current clamp, etc.
• Software Extensions: Commercial vehicle, passenger vehicle, motorcycle, and HD truck software packages (available in the built-in mall); SGW gateway function activation via license platform

HD license software kit>>>>>>>>>>>
Motorcycle renewal kit>>>>>>>>>>>

7. Convenient Software & Repair Resources

One-click updates, free repair databases, and humanized tools to improve work efficiency.

• One-Click Updates: Seamless upgrades for operating system, client software, vehicle diagnostic software, and firmware; fast model updates to follow market trends
• Repair Database: X431 FIX with rich resources—repair cases, DTC help, technical manuals, operation skills, and free training videos
• Built-In Practical Tools: Diagnosis kit (CAN bus test, DLC voltage check, VIN management), toolbox, mall, repair info, and diagnostic feedback (24/7 technical support for software/function issues)
• Multi-Language & User-Friendly: Intuitive UI, easy operation, and global language support for international technicians

X431 Fix, SGW license, please purchase it extra in the App- Mall.

Diagnosis Kit
Small tools such as vehicle coverage, CANScope, HD CAN BusTest, Can Bus pin detect, Flash data management, etc., assist with repairs.

Other Modules
Supports License List, My Points, error correction, opinion feedback, settings, about, and other functions.

Product Specifications

Product Specifications of the LAUNCH X-431 PRO3S+ Tablet:

Operating System: Android 10.0
Processor: 2.0GHz quad-core
Memory: 4GB RAM
Storage: 64GB
Display: 10.1-inch, fully laminated, sunlight-readable screen
Resolution: 1280×800
Camera: 80 MP rear camera
Wi-Fi: Supports 2.4GHz & 5GHz dual band
Operating Temperature: 0℃～50℃
Dimensions: 274×190.5×40.5 mm
Interfaces: Type A and Type C

Product Features of the SmartLink C V2 Connector:

Fully Laminated Screen Design
Prevents dust from entering the screen
Prevents fogging

Enhanced Wi-Fi Signal
Optimized Wi-Fi antenna and module

Improved Heat Dissipation
Additional cooling vents

More Secure Connection
OBD16 changed to DB15 for improved connection stability
Test cable secured to the interface with screws

Multi-Protocol Support
Supports CANFD protocol
Supports CAN2.0
Supports DOIP protocol
Supports J2534 standard
Supports D-PDU standard

Super Remote
Request remote technician service support
Supports remote service via X431 diagnostic devices
Supports remote service via specialized diagnostic devices (original equipment)
Supports remote service via third-party diagnostic devices

Product Specifications of the SmartLink C V2 Connector:

Display: 3.97-inch TFT screen, 320×480 resolution
Operating Voltage: DC 9V ~ 36V
Power Consumption: < 6W
Memory: 256 MB
Storage: 8 GB
Operating Temperature: 0℃ ~ 50℃
Dimensions: 200 mm × 110 mm × 47 mm
Communication Modes:
Local Diagnostic Mode: Bluetooth / Wired
Remote Diagnostic Mode: Ethernet

Package includes:

1pc x LAUNCH X-431 PRO3S+ Tablet
1pc x SmartLink C V2 Connector
1pc x box