1. 서론
Welcome to the user manual for the OTOFIX D1 Lite 2025 Bidirectional Scan Tool. This comprehensive diagnostic device is designed for automotive professionals and enthusiasts, offering advanced features for vehicle system analysis, maintenance, and repair. The OTOFIX D1 Lite provides powerful diagnostic capabilities, active tests, and numerous service functions to streamline your automotive work.

Figure 1: OTOFIX D1 Lite 2025 Bidirectional Scan Tool and its components.
2. 주요 특징
The OTOFIX D1 Lite 2025 model incorporates enhanced hardware and new functions for superior performance:
- Enhanced Hardware & Connectivity: Features alternative Bluetooth + USB connection, 2GB RAM + 64GB storage, a 4x ARM Cortex-A35 (1.5GHz) processor for 5X faster CPU performance, Android 9.0 OS, and 5G GHz WiFi. Supports CANFD & DoIP protocols.
- Bi-directional Active Tests: Capable of sending commands to and receiving information from vehicle control modules. This allows for quick location and repair of faulty auto parts by activating components like radiator fans, lights, fuel pumps, and more.
- 38가지 이상의 서비스 기능: Offers a comprehensive suite of commonly used service functions including Oil Reset, Steering Angle Sensor (SAS) Reset, Electronic Parking Brake (EPB) Reset, Battery Management System (BMS) Reset, Throttle Adaptation, ABS Bleeding, and new 2025 functions like SUS, ADBLUE, NOX, and Headlamp 재설정합니다.
- All System Diagnostics & Cloud Report Management: Provides troubleshooting and data for all Electronic Control Units (ECUs), including reading/clearing DTCs, viewing graphic live data, and automatic VIN detection. Detailed reports can be saved to cloud servers and easily shared.
- 광범위한 차량 보장: Works on over 150 major car brands globally, supporting CAN-FD/DoIP protocols for newer GM, Volvo, Land Rover/Jaguar, and BMW F/G chassis vehicles. Includes built-in AutoAuth for FCA SGW access (2018+) and 2015+ Renault SGW access.
- User-Friendly Upgrades: Offers wireless diagnosis with a 10-meter range, AutoVIN automatic one-click quick scan, and 2 years of free updates. Supports expandable memory (16-64GB) and can pair with the BT1 Lite for battery analysis.

그림 2: 장점을 강조하는 기능 비교tages of OTOFIX D1 Lite.

그림 3: 이상view of the 38+ hot reset functions.
3. 설정
3.1 패키지 내용
Before beginning, ensure all items are present in your OTOFIX D1 Lite package:
- OTOFIX D1 Lite Tablet
- VCI(차량 통신 인터페이스)
- 전원 어댑터
- USB 케이블
- 사용 설명서 / 빠른 참조 가이드
- 보호용 운반 케이스
3.2 초기 충전
Connect the provided power adapter to the OTOFIX D1 Lite tablet and a standard power outlet. Allow the device to fully charge before its first use to ensure optimal battery performance.
3.3 전원 켜기/끄기
To power on the device, press and hold the power button located on the side of the tablet until the screen illuminates. To power off, press and hold the power button until a shutdown prompt appears, then confirm.
3.4 VCI 연결
The VCI (Vehicle Communication Interface) unit connects wirelessly to the D1 Lite tablet via Bluetooth. Plug the VCI securely into the vehicle's OBDII port, typically located under the dashboard. Ensure the VCI's indicator light confirms a successful connection.

Figure 4: OTOFIX D1 Lite tablet and VCI unit for vehicle connection.
3.5 소프트웨어 업데이트
After initial setup, connect the device to a stable Wi-Fi network (5Ghz recommended). Navigate to the 'Update' section on the tablet's main menu and download any available software updates. Regular updates ensure the device has the latest vehicle coverage and diagnostic capabilities.
4. 장치 작동
4.1 차량 진단
The OTOFIX D1 Lite provides comprehensive OE-level diagnostics for all vehicle systems.
4.1.1 AutoVIN Scan
Select the 'Diagnostics' function. The AutoVIN feature will automatically identify the vehicle's VIN (Vehicle Identification Number) for quick and accurate system scanning, reducing manual input.
4.1.2 Read & Clear DTCs
Access and clear Diagnostic Trouble Codes (DTCs) from all available Electronic Control Units (ECUs) within the vehicle. This helps in identifying and resolving system faults.
4.1.3 라이브 데이터 스트림
View real-time sensor data in various formats, including text, graph, or analog. The device supports a 5-in-1 live data stream, allowing for comprehensive analysis of multiple parameters simultaneously.
4.1.4 ECU 정보
Retrieve detailed Electronic Control Unit (ECU) information, including part numbers, software versions, and other relevant data.

Figure 5: All System Diagnostics capabilities including AutoVIN and report generation.
4.2 능동 테스트(양방향 제어)
Active tests allow you to send commands to vehicle components to perform specific functions, aiding in the diagnosis and isolation of faults. This feature is crucial for quickly identifying malfunctioning parts without disassembling the vehicle.
Examp활성 테스트에는 다음이 포함됩니다.
- Activating/Deactivating Radiator Fan
- Cycling A/C Compressor
- Testing Fuel Pump Operation
- Operating Windows/Mirrors
- Modulating Throttle Position
- Testing Injector Buzz

Figure 6: Bi-directional control for active testing of vehicle components.
4.3 서비스 기능
The D1 Lite offers over 38 common service and reset functions to assist with routine maintenance and post-repair procedures. These functions help restore vehicle systems to their proper operating state.
주요 서비스 기능은 다음과 같습니다.
- 오일 리셋: 오일 교환 후 오일 수명 시스템을 재설정하세요.
- SAS 재설정: 조향 각도 센서 보정을 수행합니다.
- EPB 재설정: Reset the electronic parking brake system.
- BMS 재설정: Register new battery replacements with the vehicle's Battery Management System.
- 스로틀 적응: 스로틀 바디를 청소하거나 교체한 후에는 스로틀 바디 위치를 다시 학습시켜야 합니다.
- ABS 출혈: ABS(안티록 브레이크 시스템)에 대한 자동 방출 절차를 수행합니다.
- 인젝터 코딩: ECU에 새로운 인젝터 번호를 코딩합니다.
- 에어백 리셋: Clear crash data from the airbag module.
- SUS 재설정: Reset suspension system parameters.
- ADBLUE Reset: Reset the AdBlue system.
- NOX Reset: Reset the NOx sensor.
- 헤드amp 재설정 : Perform headlamp 적응.
Note: The availability of specific functions may vary depending on the vehicle's make, model, and year. Always refer to the vehicle's service manual for detailed procedures.
4.4 Cloud Report Management
The OTOFIX D1 Lite allows you to generate and save detailed diagnostic reports to the cloud. These reports can be easily shared with clients or colleagues via QR codes, email, or text messages, facilitating efficient record-keeping and collaboration.
