---
product_id: 243894365
title: "GODIAG® Auto ECU Breakout Box, GT100 Breakout Box OBDII Protocol Detector for OBDII Protocol Communication Detection/ECU Tool Maintenance/Diagnosis/Programming/Coding"
brand: "godiag"
price: "HK$1305"
currency: HKD
in_stock: true
reviews_count: 12
category: "Godiag"
url: https://www.desertcart.hk/products/243894365-godiag-auto-ecu-breakout-box-gt100-breakout-box-obdii-protocol
store_origin: HK
region: Hong Kong
---

# Car battery supplement during battery changes Real-time OBDII voltage monitoring Universal ECU communication & programming GODIAG® Auto ECU Breakout Box, GT100 Breakout Box OBDII Protocol Detector for OBDII Protocol Communication Detection/ECU Tool Maintenance/Diagnosis/Programming/Coding

**Brand:** godiag
**Price:** HK$1305
**Availability:** ✅ In Stock

## Summary

> 🔧 Power up your ECU diagnostics like a pro—never miss a beat under the hood!

## Quick Answers

- **What is this?** GODIAG® Auto ECU Breakout Box, GT100 Breakout Box OBDII Protocol Detector for OBDII Protocol Communication Detection/ECU Tool Maintenance/Diagnosis/Programming/Coding by godiag
- **How much does it cost?** HK$1305 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/243894365-godiag-auto-ecu-breakout-box-gt100-breakout-box-obdii-protocol)

## Best For

- godiag enthusiasts

## Why This Product

- Trusted godiag brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Battery Backup Power:** Keeps your ECU powered during battery swaps to avoid data corruption, key fob issues, and warning lights.
- • **Plug & Play Operation:** Simple banana plug or DB25 connector interface for quick setup and direct current display—no tech headaches.
- • **Multi-Module Compatibility:** Connects effortlessly to single or multiple vehicle modules, ensuring broad diagnostic coverage.
- • **Instant OBDII Protocol Detection:** LED indicators confirm seamless communication between your diagnostic tool and vehicle in real time.
- • **Voltage Guard for Safe Diagnostics:** Monitors vehicle voltage live; alerts you to stop if below 11V to prevent data loss or ECU lock-up.

## Overview

The GODIAG GT100 Auto ECU Breakout Box is a cutting-edge OBDII protocol detector and diagnostic tool designed for professional-grade ECU maintenance, programming, and coding. Featuring real-time voltage monitoring, multi-module compatibility, and battery backup capabilities, it safeguards your vehicle’s electronic control modules during diagnostics and battery changes. Trusted by automotive pros, it ensures reliable communication between your diagnostic tools and vehicle systems, minimizing risks of data loss and module lock-up.

## Description

Buy GODIAG® Auto ECU Breakout Box, GT100 Breakout Box OBDII Protocol Detector for OBDII Protocol Communication Detection/ECU Tool Maintenance/Diagnosis/Programming/Coding: Code Readers & Scan Tools - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: I’m very satisfied - Excellent excellent excellent
Review: Gets the job done. - Great for doing the job intended to do. Best price for this type of product.

## Features

- ECU Connector: GODIAG GT100 is a latest OBDII protocol communication detection and ECU repair/diagnosis/programming/coding test platform.
- Powerful Features: Connecting the vehicle and diagnostic tool via OBDII, the Godiag GT100's LED will indicate if the OBDII diagnostic interface is communicating well with the car. The vehicle OBDII interface voltage is monitored and displayed in real time, if it falls below 11V please stop diagnostics and programming to avoid vehicle failure to start / data loss / module lock-up.
- Strong Compatibility: The OBD2 protocol detector is capable of connecting to a single module or multiple modules of the vehicle. It can be connected with any diagnostic tool to determine whether the vehicle communication is good or not.
- As a Car Battery Supplement: GT100 can also power up the car when you change the battery to avoid loss of vehicle control module data, auto-lock, key remote malfunction and malfunction light on.
- Easy to Operate: The GT100+ OBDII breakout box is easy to operate and has the additional function of servicing the vehicle's ECM, ECU.The GT100+ breakout box connects to the ECU module via banana plug or DB25 connector, which not only supplies power to the ECU, but also directly displays the electronic current value.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08L4H9H4M |
| Best Sellers Rank | #170,507 in Automotive ( See Top 100 in Automotive ) #1,422 in Engine Tools |
| Brand | GODIAG |
| Customer Reviews | 4.6 4.6 out of 5 stars (179) |
| Date First Available | October 13, 2020 |
| Item Weight | 2.29 pounds |
| Item model number | GT100+ |
| Manufacturer | GODIAG |
| Manufacturer Part Number | GT100 |
| Package Dimensions | 9.13 x 7.32 x 3.23 inches |
| Special Features | Diagnose and program for a single ECU by connecting the diagnostic tool or ECU programmer |

## Product Details

- **Brand:** GODIAG
- **Manufacturer:** GODIAG
- **Power Source:** Battery Powered
- **UPC:** 889327047390

## Images

![GODIAG® Auto ECU Breakout Box, GT100 Breakout Box OBDII Protocol Detector for OBDII Protocol Communication Detection/ECU Tool Maintenance/Diagnosis/Programming/Coding - Image 1](https://m.media-amazon.com/images/I/71BVYnix0FL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Does this work with anything from 1993 to 2021? Also can anybody please tell me why mh Amazon kreps going to Spanish??**
A: This will work on all OBD2 which is 1996 to current also a few 1995 have an OBD2 connector. Can't answer your 2nd question.

**Q: Does it support all type of cars when change the battery?**
A: Yes, it can support all types of cars. It can use as a backup power when you change your car's battery.

**Q: Is the 12V power adapter required to use the breakout box?**
A: The data link connector (OBD2 port) will power the breakout box. The 12V power adaptor is for using the breakout box on the bench, either powering an ECU or other module.

**Q: Is a J2534 still required for programming?**
A: Hello friends , Our product is just an ECU connector, not for programming ，thank you for your consultation

## Customer Reviews

### ⭐⭐⭐⭐⭐ I’m very satisfied
*by S***O on October 30, 2025*

Excellent excellent excellent

### ⭐⭐⭐⭐⭐ Gets the job done.
*by P***L on October 6, 2025*

Great for doing the job intended to do. Best price for this type of product.

### ⭐⭐⭐⭐⭐ 10
*by R***Z on October 18, 2025*

10

## Frequently Bought Together

- GODIAG® Auto ECU Breakout Box, GT100 Breakout Box OBDII Protocol Detector for OBDII Protocol Communication Detection/ECU Tool Maintenance/Diagnosis/Programming/Coding
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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-16*