GODIAG GT100 PLUS GPT ENET DOIP: Professional Multi-Function OBD II Breakout Box & Diagnostic Interface
GODIAG GT100 PLUS GPT is a testing platform for OBDII protocol communication detection and ECU maintenance / diagnosis / programming / coding. It has a voltage and current display which is convenient for maintenance engineers to judge the current working status of ECU.
1. Core Functionality & Purpose
The GT100 PLUS GPT serves as a central hub for vehicle diagnostics and module servicing. It converts the vehicle's OBD2 port into a versatile 16-pin breakout interface, enabling signal probing, direct module connection, and seamless integration with any diagnostic tool (e.g., VVDI2). It is engineered to ensure communication stability, protect vehicle modules during service, and provide critical real-time system data.
2. Key New Features vs. Previous Models (GT100+ & GT100)
The GT100 PLUS GPT introduces several critical upgrades over its predecessors, as summarized in the table below:
|
Feature / Model |
GT100 Plus GPT |
GT100+ |
GT100 |
|
24V to 12V Voltage Conversion |
✅ |
❌ |
❌ |
|
DOIP & ENET Diagnostics |
✅ |
❌ |
❌ |
|
GPT Connection for ECU Read/Write |
✅ |
❌ |
❌ |
|
Connection to GODIAG BMW/Airbag CANBUS Test Platforms |
✅ |
❌ |
❌ |
|
Voltage & Current Value Display |
✅ |
✅ |
❌ |
|
Protocol Display for Pins 1,9,3,11,12,13,8 |
CANBUS & K-Line Protocols |
CANBUS & K-Line Protocols |
K-Line Protocols only |
|
OBDII Protocol Support (Pins 2,6,7,10,14,15) |
✅ |
✅ |
✅ |
|
Tool Communication Signal Verification |
✅ |
✅ |
✅ |
|
All Keys Lost Programming (VW, Porsche, etc.) |
✅ |
✅ |
✅ |
|
Bench Communication with Single ECU |
✅ |
✅ |
✅ |
|
Auxiliary Battery Power Supply Replacement |
✅ |
✅ |
✅ |
|
OBD1 to OBD2 Port Conversion |
✅ |
✅ |
✅ |
|
BMW CAS4 Key Testing |
✅ |
✅ |
✅ |
|
BMW FEM/BDC Programming Platform Compatibility |
✅ |
✅ |
✅ |
3. Detailed Functional Breakdown
A. ECU Service & GPT Technology
-
GPT Connection Method: Enables reading and writing of ECU data without disassembling the unit. Supports OBD2 Bench mode for both CAN bus and K-Line, as well as GPT BOOT modes.
-
Single & Multiple ECU Connection: Facilitates diagnosis and programming of individual modules on the bench, minimizing risk to other vehicle systems. Allows connection to multiple ECUs simultaneously for complex procedures like key programming.
B. Enhanced Diagnostic Communication
-
DOIP & ENET Support: Enables diagnostic programming and coding for modern vehicles from BMW, Mercedes-Benz, VAG, Land Rover, Volvo, and Geely that utilize the Ethernet-based DOIP protocol.
-
OBDII Communication & Power Monitor: LED indicators display communication status. The integrated voltage/current screen shows real-time OBD port voltage, providing an essential warning to stop work if voltage drops below 11V to prevent module lock or data loss.
C. Power Management & Protection
-
24V to 12V Conversion: Safely interfaces 12V diagnostic equipment with the 24V systems of trucks, pickups, and other commercial vehicles.
-
Auxiliary Uninterruptible Power Supply (UPS): Provides continuous power to the vehicle during battery replacement, preventing fault codes, module resets, or key synchronization loss.
-
Extended & Safe Connection: The 1.4-meter OBD cable allows access to hard-to-reach ports and isolates your valuable diagnostic tools from potential voltage faults in modified vehicle wiring.
D. Specialized Applications & Compatibility
-
All Keys Lost Programming: Activates instrument/immobilizer modules for key programming on various brands via specific pin shorting procedures (e.g., PIN 16-1 for VW/Audi, PIN 13-4 for Toyota, PIN 1-4 for Mitsubishi, PIN 3-7 for Porsche).
-
Broad Test Platform Integration: Works with GODIAG platforms for BMW CAS1/2/3/4 and FEM/BDC modules, and airbag system testing (100K CANBUS).
-
Legacy & Special Vehicle Support: Converts non-standard OBD1 or proprietary diagnostic ports to a standard OBD2 interface using the provided banana plugs and DB25 jumper cables.
-
Signal Integrity: Utilizes CANH/CANL shielded twisted-pair cables to resist electromagnetic interference and ensure stable data communication.
4. Product Specifications
|
Item |
Specification |
|
Diagnostic Port |
OBDII Female (16-pin) |
|
Working Voltage |
DC 9V - 24V |
|
Power Consumption |
0.5W - 0.6W |
|
Adapter Power |
Input: AC 100-240V; Output: DC 12.5V, 2.5A |
|
Operating Temperature |
-20°C to 70°C (-4°F to 158°F) |
|
Storage Temperature |
-40°C to 85°C (-40°F to 185°F) |
|
Dimensions (L x W x H) |
23 cm x 18 cm x 7 cm |
5. Package Contents
-
1 x GT100 PLUS GPT Host Unit
-
1 x GPT Connecting Cable
-
1 x Ethernet Cable (for DOIP/ENET)
-
1 x OBD 2-in-1 Extension Cable
-
1 x Set of Colored Jumper Wires
-
1 x 12V Power Supply Adapter
-
1 x 120 Ohm CAN Bus Resistor
-
6 x Banana Plugs
-
24 x Dupont 2.54mm Female Connector Pins & Wire Accessories
-
1 x User Manual
Disclaimer: This device is a hardware interface platform. Diagnostic software and specific vehicle application files are not provided and must be sourced separately according to the user's needs.
