JDiag M400 Motorcycle Diagnostic Scanner ABS Test & Data Printing Battery Test EFT Code clean For Kawasaki Yamaha Honda KTM

The 2026 Jdiag M400 is an Android 10-powered motorcycle diagnostic tablet designed for broad model compatibility across Asia, Europe, America, and China. With an 8-inch capacitive touchscreen, quad-core performance, and a suite of diagnostic and maintenance features, the M400 aims to simplify fault code reading, data streaming, ABS testing, injector checks, battery analysis, and more for a wide range of brands.

Key Features of the M400 Diagnostic Tablet

Operating System and Hardware

• OS: Android 10
• CPU: Quad-core high-speed processor
• Display: 8.0-inch TFT capacitive touch screen, 800x1280 resolution
• Memory and Storage: 8GB storage; supports microSD cards up to 128GB
• Connectivity: Wi-Fi 6 and Bluetooth 4.0
• Battery: 3.7V, 4000 mAh
• Package size: 370 x 300 x 137 mm

Diagnostic and Special Functions

• Diagnostic Functions: Read Fault Code, Clear Fault Code, Read ECU Version Information, View Data Streams, Idle Speed Control, Freezing Data
• Special Functions: ABS System Test, ECU Reset, Injector Test, Battery Test, Relay Test, Analog Signal Output, Maintenance Assistance, Help

Supported Vehicle Brands

• ADIVA, AEON, APRILIA, ARCTIC CAT, BAJAJ, BENELLI, BRP, BRIXTON, HARTFORD, HONDA, HYOSUNG, KAWASAKI, KTM, KYMCO, PGO, YAMAHA, PIAGGIO, ROYAL ENFIELD, SUZUKI, SYM, TRIUMPH, VESPA

How the M400 Works

Easy Connection and Activation

• Locate the motorcycle diagnostic jack (position varies by model; often near the engine, under the seat, or in other accessible locations).
• Connect the M400 to the motorcycle’s diagnostic port with the appropriate cable.
• Initial use requires an internet connection to activate the device; operation begins after successful activation.

Real-Time Data and Visualization

• Real-time data streams: View and analyze live sensor data.
• Fault code management: Read and clear diagnostics for rapid troubleshooting.
• 1080P Endoscopy (high-definition camera): Inspect internal engine components for wear, carbon buildup, and general condition.

ABS, ECU, and Maintenance Capabilities

ABS System Diagnostics

• Quickly read ABS status and perform diagnostics to support safe riding.
• Access path: Diagnostics → General EFI → ABS System Diagnostics; select the brand on the main page.

ECU Reset and Injector Tests

• ECU Reset: Guided steps for different ECU systems (example: DELPHI) to reset the ECU according to system prompts.
• Injector Test: Connect the injector (example: FAI) with external power supply; follow connection guidelines to perform tests.

Battery and Relay Testing

• Battery Testing: Modes include standard, start-up, and charging tests for comprehensive results.
• Relay Detection: Requires a DB15 connector connected to 12V power; use the main power cord and adapter cable for proper operation.

Analog Signal Output and Maintenance

• Analog Signal Output: Simulate crankshaft, PWM, injector, ignition signals, and other required outputs.
• Maintenance Assistance: Access professional maintenance information and troubleshooting guides covering major motorcycle brands.

Upgrade and Connectivity

One-Click Online Upgrade

• Wireless WiFi 6 connection enables one-key online upgrades for a refreshed experience.

Interface and Hardware Details

Interface Overview

• TPU soft rubber sleeve for protection
• 8-inch touchscreen with 800x1280 resolution
• LED indicators: Red (charging) and Green (communication)
• DC power interface: 12V
• USB interface for external devices
• DB15 pin connector for motorcycle diagnostic port
• Type-C interface for external USB drives and charging
• TF card slot to expand storage
• On/Off button for power and screen wake/sleep

Physical Design and Durability

• TPU soft rubber sheath provides anti-fall and non-slip grip
• Multiple interfaces to facilitate data transfer
• Rugged metal stand and pure copper core for stable data transmission

Language Support Note

Language Availability

• The M400 is available in English as the standard version.
• If you require other languages, consider the M400 Pro, which supports additional language options (differences cited in product variants).

Practical Use Scenarios

When to Use the M400

• Regular maintenance and fault-code troubleshooting on common motorcycle models across major markets
• ABS diagnostics for improved braking safety
• ECU resets for certain OEM service procedures
• Injector and Battery testing for early fault detection
• Data streaming and real-time monitoring for performance tuning and diagnostics

Important Usage Information

• Activation: An active internet connection is required for the initial activation.
• Model Coverage: The M400 targets a wide range of brands; refer to the “Supported Vehicle Brands” list for exact compatibility.
• English Version Limitation: Some languages may require the M400 Pro model.