1. はじめに
Thank you for choosing the GZCRDZ V519 OBD2 Car Code Reader. This multifunctional diagnostic tool is designed to help you efficiently read and clear engine fault codes, monitor vehicle data, and perform various diagnostic tests on your vehicle. This manual provides detailed instructions on how to set up, operate, and maintain your V519 device.
The V519 supports international universal OBD protocols for vehicles manufactured from 2012 onwards. For vehicles older than 2012, please consult customer service for compatibility. This product is not compatible with new energy vehicles, hybrid vehicles, or models that do not comply with the OBD2 protocol.
2.製品オーバーview および機能
The GZCRDZ V519 is a professional, plug-and-play OBD2 scanner featuring a 2.8-inch color screen (resolution: 240*320) for clear display of diagnostic information. It is powered directly by the vehicle's OBDII data link connector, requiring no external battery or charger.

Figure 2.1: The GZCRDZ V519 OBD2 Car Code Reader, a compact and ergonomic diagnostic tool with a clear color display and intuitive button layout.
主な特徴:
- 多機能性: エンジン故障コードの読み取りとクリア、 view I/M readiness status, access vehicle information, display live data streams, read battery voltage, perform Mode 6 and Mode 8 detection, conduct oxygen sensor tests, query fault codes, utilize playback function, and print diagnostic reports.
- 広範なDTCライブラリ: Integrated with 35901 Diagnostic Trouble Codes (DTCs) to assist in diagnosing and resolving vehicle faults.
- ユーザーフレンドリーなデザイン: Features an elegant appearance with a comfortable grip, anti-slip and anti-fall protective cover, and reinforced wiring for stability and durability. Buttons provide accurate feedback.
- プラグアンドプレイ操作: Simply connect to your vehicle's OBDII port for immediate use.
- 多言語サポート: 英語、ドイツ語、フランス語、スペイン語、イタリア語、ロシア語、オランダ語、中国語、日本語、ポルトガル語を含む 10 言語をサポートします。

図2.2:以上view of the V519's main features, including code reading, data stream, DTC library, and various diagnostic functions, displayed on the device screen.

図 2.3: 拡大図 views highlighting the V519's design elements: anti-slip protective cover, reinforced and durable wire, responsive buttons, and robust ABS material construction.

Figure 2.4: The V519 supports 10 languages, indicated by flags of various countries, making it accessible to a wide range of users.
3. パッケージ内容
パッケージを開封したら、以下にリストされているすべてのアイテムが揃っていて良好な状態であることを確認してください。
- 1 x GZCRDZ V519 Fault Detector
- ユーザーマニュアル x 1
4. 仕様
| 仕様 | 価値 |
|---|---|
| 製品モデル | バージョン519 |
| 営業巻tage | 12 - 16V |
| 動作環境温度 | -20 ℃~65 ℃(-4 ℉~149 ℉) |
| 保管温度 | -30 ℃~70 ℃(-22 ℉~158 ℉) |
| サポートされている言語 | 英語、ドイツ語、フランス語、スペイン語、イタリア語、ロシア語、オランダ語、中国語、日本語、ポルトガル語 |
| 画面 | 2.8-inch Color Screen (240*320 resolution) |
| 重さ | 330グラム |
| 寸法 | 約20 x 13 x 4.3 cm |
5. セットアップとインストール
The GZCRDZ V519 is designed for simple plug-and-play operation. Follow these steps to connect the device to your vehicle:
- Locate the OBDII (On-Board Diagnostics II) port in your vehicle. This port is typically found under the dashboard on the driver's side, but its exact location may vary by vehicle model. Common locations are marked A, B, C, D in Figure 5.1.
- Ensure your vehicle's ignition is in the OFF position before connecting the scanner.
- Firmly plug the V519's 16-pin connector into the vehicle's OBDII port.
- Once connected, turn the vehicle's ignition to the ON position (engine can be off or running, depending on the diagnostic task). The V519 will power on automatically.

Figure 5.1: Common locations for the automotive OBD universal interface (A, B, C, D) within a vehicle's cabin, typically under the dashboard on the driver's side.
6. 操作手順
After connecting the V519 to your vehicle, the device will power on and display the main menu. Use the navigation buttons to select desired functions.

Figure 6.1: Diagram illustrating the button layout and functions on the V519 device, including navigation (up, down, left, right, OK), function keys (F1, F2), and EXIT button.
ボタンの機能:
- OKボタン: 選択を確定するか、メニューに入ります。
- 上/下矢印: メニュー オプションを移動したり、値を調整したりします。
- 左/右矢印: Navigate horizontally or change digits during input.
- F1/F2 ボタン: Function-specific keys, their purpose may change depending on the current screen.
- 終了ボタン: 前の画面に戻るか、機能を終了します。
LEDインジケーター:
The V519 features LED indicators to provide quick status feedback:
- 赤信号: Indicates an error code is present. Read the error code for details.
- 黄色信号: Indicates the device is unable to connect to the vehicle's ECU. Check connections.
- 緑色のライト: Indicates a successful connection to the vehicle.
一般的な操作:
- コードを読む: Select 'Read Codes' from the main menu to retrieve Diagnostic Trouble Codes (DTCs) stored in the vehicle's ECU.
- コードの消去: After addressing a fault, select 'Erase Codes' to clear the DTCs and turn off the Check Engine Light (MIL).
- データストリーム: View live data parameters from the vehicle's sensors, such as engine RPM, vehicle speed, oxygen sensor readings, etc.
- I / M準備: 排出ガス関連モニターのステータスをチェックして、車両が排出ガス検査の準備ができているかどうかを判断します。
- 車両情報: Retrieve vehicle information such as VIN (Vehicle Identification Number), CID (Calibration ID), and CVN (Calibration Verification Number).
- バッテリー巻tage: 車両のバッテリー容量を監視するtagリアルタイムでe。
7. Fault Code Library (DTC Lookup)
The V519 has a built-in library of 35901 Diagnostic Trouble Codes (DTCs). This feature allows you to quickly look up the definition of a fault code directly on the device, helping you understand the nature of the problem without needing external resources.
- From the main menu, select 'DTC Lib' or 'Fault Code Query'.
- Enter the specific fault code using the navigation buttons to change digits.
- 「OK」を押して view the detailed description of the code.

Figure 7.1: The V519's fault code library interface, showing a list of common DTCs and the input screen for looking up specific codes.
8. Software Update and Printing Function
The V519 supports software updates and allows you to print diagnostic reports by connecting to a computer.
- Log in to elm327.com (or the official GZCRDZ support website) to download the V519 Product Tool software.
- After successful download, use a Type-C data cable to connect the V519 device to your computer.
- Double-click the downloaded 'V519ProductTool' executable file アプリケーションを起動します。
- Within the software, select 'Update Firmware' or 'Review Datastream' as required.
- Follow the on-screen prompts to complete the upgrading process or print your diagnostic reports.

Figure 8.1: Setup for the V519's software update and print function, showing the device connected via USB-C to a laptop, with a printer nearby for report output.
9。 トラブルシューティング
If you encounter issues while using your GZCRDZ V519, refer to the following common problems and solutions:
- デバイスの電源が入らない:
- Ensure the V519 is securely plugged into the vehicle's OBDII port.
- 車両のイグニッションがオンの位置にあることを確認します。
- Check the vehicle's fuse for the OBDII port (refer to your vehicle's owner's manual).
- Yellow LED (No Connection):
- Confirm the vehicle supports the universal OBDII protocol (vehicles from 2012 onwards are generally compatible).
- 車両のイグニッションがオンになっていることを確認します。
- Try connecting the device to a different compatible vehicle to rule out a vehicle-specific issue.
- Inspect the OBDII port and the V519 connector for any damage or debris.
- Red LED (Error Code Present) but No Codes Displayed:
- Ensure you have selected the 'Read Codes' function.
- Some codes may be pending or historical; check all code types available in the menu.
- コードをクリアできません:
- Ensure the underlying fault has been repaired. Codes will reappear if the issue persists.
- The ignition must be ON, and the engine may need to be off for some vehicles to clear codes.
- Software Update Fails:
- 安定したインターネット接続を確保してください。
- Temporarily disable antivirus software that might interfere with the update process.
- Use the provided Type-C data cable and ensure it is securely connected.
If problems persist, please contact GZCRDZ customer support for further assistance.
10. 安全情報
Please read and follow these safety precautions to prevent personal injury or damage to the device or vehicle:
- 常に換気の良い場所で車両を運転してください。
- 車両での作業中は、ゆったりとした衣服や宝石類を身に着けないでください。
- Keep the device away from water, oil, and extreme temperatures.
- Do not attempt to disassemble or modify the V519 device. There are no user-serviceable parts inside.
- Be aware of hot engine components and moving parts when working under the hood.
- Always consult your vehicle's service manual for specific diagnostic procedures and safety warnings.
- 運転中は装置を操作しないでください。
11. 保証とサポート
For information regarding warranty coverage and terms, please refer to the warranty card included with your product or visit the official GZCRDZ website. For technical support, troubleshooting assistance, or any other inquiries, please contact GZCRDZ customer service through the contact information provided on their official webサイトまたは製品パッケージ。