1. 서론
The VAG 409.1 KKL COM USB Interface is a diagnostic tool designed for use with Volkswagen, Audi, Skoda, and Seat vehicles. It allows users to connect their computer to the vehicle's On-Board Diagnostics (OBD2) system to read fault codes, access various control units, and perform basic diagnostic functions. This manual provides essential information for setting up, operating, and maintaining your diagnostic cable.
Figure 1: VAG KKL Diagnostic Cable with FTDI/CH340T chip options
2. 사양
| 특징 | 설명 |
|---|---|
| 브랜드 이름 | 제이파인드 |
| 모델명 | 질 409.1 |
| 품목 유형 | Car Diagnostic Cables and Connectors |
| 주요 기능 | VAG KKL USB Interface Cable |
| OBDII Plug | J1962 16-Pin Male (to Car) |
| 운영 체제 호환성 | Windows 98SE / ME / 2000 / NT / XP, Windows 7 32bits, Windows 10 64bits, Windows 11 64bits |
| 지원되는 프로토콜 | ISO/KWP (Key Word Protocol), ISO9141. (Note: Not compatible with VPW, PWM, or CAN-bus systems) |
| 의사소통 | Supports terminal (K) bus communication and terminal (L) ignition for waking up ECU. |
| 권tage | 12V |
| 힘 | 2-5W |
| 재료 유형 | Plastic and Material |
| 인증 | RoHS, CE |
| 외부 테스트 인증 | ce |
| 고위험 화학물질 | 없음 |
| 배터리 포함 | 아니요 |
| 기원 | 중국 본토 |
그림 2: 내부 view of the KKL VAG-COM cable and FTDI chip.
3. 패키지 내용
패키지에는 일반적으로 다음 품목이 포함됩니다.
- 1 x VAG KKL Diagnostic Cable
- 1 x CD Drive (containing drivers and software)
Figure 3: VAG KKL Cable and included CD Drive.
4. 설정 가이드
4.1 드라이버 설치
- Insert the provided CD Drive into your computer's CD/DVD ROM.
- 드라이버 설치를 찾아 실행하세요 file. Follow the on-screen prompts to install the necessary USB drivers for the VAG KKL cable.
- If the CD is damaged or unreadable, please contact the seller for a link to download the software and drivers from an online source (e.g., MEGA).
4.2 소프트웨어 설치
- After installing the drivers, install the diagnostic software from the CD.
- Follow the software's installation instructions.
- For detailed software installation guidance, an online video manual may be available. Contact the seller for access to this resource.
- If you encounter difficulties, the seller's engineer may offer remote assistance via TeamView어.
4.3 케이블 연결
- Ensure your vehicle's ignition is OFF.
- 차량의 OBD2 포트를 찾으십시오. 일반적으로 운전석 쪽 대시보드 아래에 있습니다.
- Plug the 16-pin J1962 connector of the VAG KKL cable into the vehicle's OBD2 port.
- Plug the USB connector of the VAG KKL cable into an available USB port on your computer.
- Turn your vehicle's ignition to the ON position (do not start the engine unless instructed by the software).
5. 사용 설명서
- Launch the diagnostic software installed on your computer.
- The software should automatically detect the connected interface. If not, you may need to manually select the correct COM port in the software settings.
- Select your vehicle's make, model, and year within the software.
- The software will establish communication with the vehicle's Engine Control Unit (ECU) using the K-bus communication and L-ignition for wake-up.
- You can now perform various diagnostic functions, such as:
- Reading and clearing Diagnostic Trouble Codes (DTCs)
- Viewing live sensor data
- Performing adaptation and coding (advanced users only, refer to software documentation)
- Always follow the specific instructions provided by your diagnostic software for each function.
- When finished, exit the software, turn off your vehicle's ignition, and then disconnect the cable from both the vehicle and the computer.
6. 호환 차량
The VAG 409.1 KKL cable is designed to work with most Volkswagen, Audi, Skoda, and Seat models sold worldwide from 1994 to the current year that use the ISO/KWP (Key Word Protocol) or ISO9141 protocol.
6.1 For Audi Models:
- 호환 가능: A2 / A3 / A4 Cabriolet / A6 / A8 / S2 / S3 / TT
- 호환되지 않음: 80 / 100 / 200 / A3(8P) / A4(B7) / A6(C6/4F) / A8 / A8L(D3/4E) / Q7
6.2 For Seat Models:
- 호환 가능: Alhambra / Altea / Arosa / Cordoba / Ibiza / Inca / Leon MK 1 / Leon MK 2 / Toledo
- 호환되지 않음: Altea (5P) / Leon (1P) / Toledo (5P)
6.3 For Skoda Models:
- 호환 가능: Fabia / Felicia / Octavia MK 1 / Octavia MK 2 / Superb
- 호환되지 않음: Octavia (1Z)
6.4 For VW Models:
- 호환 가능: Beetle / Bora / Caddy / Corrado / Golf MK2 / Golf MK3 / Golf MK4 / Jetta MK3 / Jetta MK4 / Lupo / Passat MK3 / Passat MK4 / Polo MK3 / Polo MK4 / Touran / Touareg / Transporter T3 / Transporter T4 / Transporter T5.
- 호환되지 않음: Caddy (2K) / Golf MK5 (1K) / Golf Plus / Jetta MK5 (1K) / Passat MK5 (B6) / Passat MK6 (B6) / Phaeton / Touran (1T)
중요 참고 사항:
The VAG KKL cable cannot work if your car uses a protocol bus system like VPW, PWM, or CAN-bus. It is specifically designed for ISO/KWP protocols launched after 1996.
7. 문제 해결
7.1 일반적인 문제점 및 해결책:
- Issue: The provided CD Drive is broken or unreadable.
해결책: Due to potential damage during long delivery, the software and drivers are often uploaded to online platforms (e.g., MEGA) for free download. Contact the seller for the download link.
- Issue: Difficulty installing the software or drivers.
해결책: The seller may provide an online video manual for installation. Additionally, their engineers can offer remote assistance via TeamViewer to help with the installation process.
- Issue: The cable does not work at all after installation.
해결책:
- Verify that the correct drivers are installed and the cable is recognized by your computer's Device Manager.
- Ensure your operating system is compatible (Windows 98SE / ME / 2000 / NT / XP, Windows 7 32bits, Windows 10 64bits, Windows 11 64bits).
- Confirm that your vehicle's make, model, and year are listed as compatible and use the ISO/KWP protocol. The cable will not work with VPW, PWM, or CAN-bus systems.
- Check all physical connections to ensure they are secure.
- 컴퓨터의 다른 USB 포트를 사용해 보십시오.
- Restart your computer and vehicle.
- If issues persist, contact the seller's support for further assistance.
- Issue: Communication errors with the vehicle.
해결책: Ensure the ignition is on. Check that the correct COM port is selected in your diagnostic software. Verify that your vehicle's protocol is ISO/KWP and not CAN-bus, VPW, or PWM.
Figure 4: Common FAQ and solutions for CD and software installation.
8. 사용자 팁
- 드라이버 및 소프트웨어 설치: Many users report initial difficulties with driver and software installation. Always prioritize downloading the latest drivers and software directly from the seller's provided online link if the physical CD is problematic.
- 호환성 검사 : Before attempting installation or use, confirm your vehicle's compatibility. Specifically, ensure it is a VAG group vehicle (VW, Audi, Skoda, Seat) from 1994 onwards and uses the ISO/KWP protocol. For example, it is compatible with Golf MK4 models.
- 지원을 요청하세요: If you encounter persistent issues, especially with installation or initial connection, do not hesitate to contact the seller's customer support. They often provide video manuals and remote assistance (e.g., via TeamViewer) which can be very helpful.
- Chipset Awareness: Be aware of the chipset in your cable (FTDI FT232RL or CH340T) as this may influence driver selection.
Figure 5: Different chipsets (FTDI and CH340T) that may be present in the cable.
9. 유지관리
- Keep the diagnostic cable clean and dry. Avoid exposing it to moisture, extreme temperatures, or direct sunlight.
- Store the cable in a safe place to prevent physical damage, such as crushing or excessive bending.
- Do not pull the cable by the wire when disconnecting; always grasp the connector itself.
- Regularly check the connectors for any signs of damage or corrosion.
10. 보증 및 지원
For any product-related issues, technical support, or warranty inquiries, please contact the seller directly. Provide your purchase details and a clear description of the problem to facilitate a quick resolution.




