GODIAG GD101 J2534 Passthru & ELM327 Dual-Mode Diagnostic Interface

Automatic Protocol Switching | J1979 Vehicle Support | OEM-Level ECU Communication | Ideal for Professional Use

Product Overview:

The GODIAG GD101 is a powerful and intelligent dual-mode diagnostic interface that combines both J2534 PassThru and ELM327 protocols in a single compact tool. Engineered for maximum versatility, it is compatible with a wide range of vehicles that follow the J1979 OBDII protocol, and is perfectly suited for professional workshops, automotive technicians, and enthusiasts who demand accurate, OEM-level communication capabilities.

With automatic mode switching, the GD101 eliminates the hassle of manual selection between J2534 and ELM327—offering seamless operation regardless of the software or vehicle protocol being used.

Features:

Dual-Mode Support – Fully compatible with J2534 PassThru and ELM327 protocols, enabling advanced diagnostics, ECU programming, and basic OBDII scanning with a wide range of software tools.

Automatic Protocol Switching – Smart detection and seamless switching between J2534 and ELM327 based on the diagnostic environment or application being used.

J1979 Vehicle Compatibility – Supports all vehicles compliant with the J1979 OBDII standard, making it a flexible solution for global vehicle coverage.

OEM-Level Communication – Ideal for professional use with factory diagnostic tools and third-party software that require J2534 compliance.

Wide Software Compatibility – Works with OEM applications like Toyota Techstream, Ford IDS, Honda HDS, GM GDS2, Chrysler Witech, and also with ELM327-compatible software such as Torque, Forscan, ScanMaster, and more.

Reliable & Stable Connection – Ensures high-speed data transfer with a stable USB connection and robust build quality designed for long-term workshop use.

Professional-Grade Design – Compact, durable, and easy to carry—perfect for both shop floors and mobile diagnostics.

Technical Specifications:

• Communication Protocols: J2534, ELM327

• Vehicle Protocols Supported: J1979, CAN, ISO9141, KWP2000, J1850

• Connection Type: USB

• Operating Systems: Windows XP/7/8/10/11

• Software Compatibility: OEM Tools + ELM327-based software

• Power Supply: From vehicle OBDII port

• Indicators: LED status lights for power, connection, and communication

Package Includes:

• GODIAG GD101 J2534/ELM327 Dual-Mode Diagnostic Interface

• USB Cable

• Quick Start Guide

• Driver & Software Access (Downloadable)

Why Choose GODIAG GD101?

Whether you're performing deep-level ECU programming, reading DTCs, or doing basic real-time diagnostics, the GODIAG GD101 delivers a cost-effective, professional solution that adapts to your workflow. Trusted by automotive professionals, it's the ultimate tool for those who demand compatibility, flexibility, and performance—all in one device.

Compatible Software for GODIAG GD101 J2534:

OEM Diagnostic & Programming Software (J2534):

Brand	Software Name	Functionality
GM	GDS2 + SPS (Service Programming System)	Diagnostics, ECU Programming
Ford/Mazda	Ford IDS / FDRS / Mazda IDS	Diagnostics, Module Programming
Toyota/Lexus	Techstream	Diagnostics, ECU Reflashing
Honda/Acura	HDS (Honda Diagnostic System)	Diagnostics, Reprogramming
VW/Audi	ODIS Service + ODIS Engineering	OEM-Level Diagnostics & ECU Programming
BMW/MINI	ISTA-D (Diagnostics) & ISTA-P (Programming)	Advanced Diagnostics & Programming
Chrysler/Dodge/Jeep/RAM	Witech 2.0	Dealer-level Diagnostics & Programming
Hyundai/Kia	GDS/KDS	OEM Diagnostics & Flashing
Nissan/Infiniti	CONSULT III+	Full System Diagnostics & ECU Flashing
Volvo	VIDA	OEM Diagnostic & Software Update
Mercedes-Benz	XENTRY PassThru	Diagnostics & Module Programming
Subaru	SSM4	Full System Diagnostics

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ELM327-Compatible Software (for Basic Diagnostics):

• ScanMaster ELM

• Torque Pro (for Android via OBD Bluetooth)

• OBD Auto Doctor

• OBDwiz

• FORScan (for Ford/Mazda - basic version)

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Features Enabled by These Software Packages:

• Full-System Diagnostics (Engine, Transmission, ABS, Airbag, etc.)

• ECU Programming & Flashing

• Key Programming (OEM-dependent)

• Module Initialization

• VIN Reprogramming

• Reset & Coding Functions (Battery, DPF, TPMS, etc.)

Recommended System Requirements (for optimal performance):

• Operating System:
  Windows 10 pro  (64-bit preferred)

• Processor:
  Intel Core i5 or i7 

• RAM:
  8 GB or more

• Hard Disk:
  SSD (Solid State Drive) with 20+ GB free space

• USB Port:
  USB 3.0 recommended for faster and more stable data transfer