KONNWEI KW808 OBD2 Scanner User Manual

1. Introduction

The KONNWEI KW808 OBD2 Reader is a universal car computer fault code reader designed for engine systems. It provides full OBDII diagnostic functions to check all engine-related trouble codes from the Vehicle ECU (Electronic Control Unit), such as Emission Control, Oxygen (O2) Sensor, Misfire, etc. The KW808 code scanner reads fault codes that cause the 'Check Engine' light to illuminate, identifies the issue, and allows you to clear trouble codes and turn off the 'Check Engine' light. This tool helps diagnose problems before visiting a repair shop, potentially saving on unnecessary maintenance costs.

2. Key Features

• Reads & clears generic OBD II trouble codes (including pending codes).
• Turns off the 'Check Engine' light (MIL).
• Displays Generic Codes P0, P2, P3, U0 and Manufacturer Specific Codes P1, P3, and U1.
• Displays OBD2 monitor and I/M readiness Status.
• Detects OBD-II Freeze Frame Information.
• Reads live PCM data stream.
• Displays live O2 sensor test data.
• Performs Modules Present Test.
• Supports CAN (Controller Area Network) and all other current OBD-II protocols.
• Built-in OBD-II DTC lookup library.
• State Emissions Check (OBD2).
• Retrieves Vehicle information (VIN, CID, and CVN).
• Determines the malfunction indicator lamp (MIL) status.
• Code definitions displayed on the unit screen.
• Unit updateable via Internet.
• Highly reliable and accurate.
• Easy-to-read crystal-clear backlit large 128 x 64 LCD display.
• Safely communicates with the on-board computer.

3. Setup and Connection

1. Locate the OBD-II Port: The OBD-II port is usually located under the dashboard on the driver's side of the vehicle. Refer to your vehicle's owner's manual if you cannot find it.
2. Verify OBD-II Compliance: To confirm if your vehicle is OBD-II compliant, pop the hood and look for a sticker named "VEHICLE EMISSION CONTROL INFORMATION".
3. Connect the Scanner: With the vehicle's ignition off, plug the KW808 scanner's OBD-II connector into the vehicle's OBD-II port. Ensure a secure connection.
4. Power On: Turn the vehicle's ignition to the 'ON' position (do not start the engine). The scanner should power on automatically. If not, check the connection.

4. Operating Instructions

The KW808 features a user-friendly interface with a 2.8-inch backlit LCD display and durable buttons for navigation.

4.1. Navigating the Menu

Use the ENTER button to confirm selections, ESC to go back, and the arrow keys (UP/DOWN/LEFT/RIGHT) to navigate through menu options.

4.2. Reading and Clearing Trouble Codes

1. From the main menu, select "Read Codes" to view current, pending, and historic Diagnostic Trouble Codes (DTCs).
2. To clear codes, select "Erase Codes" from the diagnostic menu. Confirm your selection when prompted. This will turn off the 'Check Engine' light.

4.3. Viewing Live Data

Select "Live Data" to view real-time sensor data from your vehicle's engine. This can help in diagnosing intermittent problems.

4.4. I/M Readiness Status

Select "I/M Readiness" to check the status of the emission-related monitoring systems. This is useful for preparing for emission tests.

4.5. DTC Lookup Library

The device has a built-in DTC lookup library. When a code is displayed, the scanner can provide a definition directly on the screen, eliminating the need to search online.

5. Maintenance

• Cleaning: Use a soft, dry cloth to clean the scanner's exterior. Do not use abrasive cleaners or solvents.
• Storage: Store the device in its nylon carry case in a dry, cool place away from direct sunlight when not in use.
• Software Updates: The unit is updateable via the internet. Periodically check the KONNWEI official website for software updates to ensure optimal performance and compatibility with newer vehicles.

6. Troubleshooting

6.1. Scanner Does Not Power On

• Ensure the OBD-II connector is securely plugged into the vehicle's port.
• Verify the vehicle's ignition is in the 'ON' position.
• Check the vehicle's fuse for the OBD-II port (refer to your vehicle's manual).

6.2. Link Error / Cannot Connect to Vehicle

• Confirm your vehicle is OBD-II compliant (most vehicles after 1996 in USA, 2003 in Europe, 2008 in Japan).
• Ensure the ignition is 'ON' and the engine is off.
• Try connecting to another OBD-II compliant vehicle to rule out scanner malfunction.
• Check for any loose connections in the OBD-II cable.

6.3. Codes Cannot Be Cleared

• Ensure the ignition is 'ON' and the engine is off.
• Some codes cannot be cleared if the underlying fault is still present. Address the root cause of the DTC first.
• Follow the scanner's on-screen prompts carefully during the clearing process.

7. Specifications

7.1. Vehicle Compatibility

The KW808 supports both diesel and gasoline vehicles that are compliant with standard OBDII protocols and have an OBDII 16-pin Diagnostic Port.

• American (USA) Cars: Standard OBD2 Cars from 1996 to present (e.g., Chrysler, Ford, GM, Jeep).
• European Cars: Standard OBD2 Cars from 2003 to present (e.g., Alfa Romeo, SAAB, Acura, Opel, Audi, Seat, Peugeot, Bentley, Skoda, Daewoo, Benz, Daihatsu, Land Rover, BMW, Vauxhall, Citroen, Volvo, Fiat, VW, Ford, Jaguar).
• Japanese Cars: Standard OBD2 Cars from 2008 to present (e.g., KIA, Isuzu, Honda, Mitsubishi, Hyundai, Dacia, Lexus, Mazda, Nissan, Subaru, Suzuki, Toyota).

Note: Does not support Russian Cars (VAZ, UAZ, LADA), certain Ssangyong models (Actyon 2009-2017, Korando 2.0 TD Diesel 2013-2017, Kyron 2.0 Diesel 2010-2017, Rexton 2011-2017), Opel Corsa c 2004 1.3 CDTI, VW Golf 4 2002, Citroen C4/C5, Chevrolet cars, Renault Logon/Megane, Skoda Fabia, Skoda Octavia.

8. User Tips

• Always ensure the vehicle's ignition is in the 'ON' position (engine off) when performing diagnostics to avoid potential issues.
• For intermittent 'Check Engine' lights, use the 'Live Data' function to monitor sensor readings during driving conditions when the problem typically occurs.
• Before erasing codes, it's recommended to note down the DTCs for future reference or to share with a mechanic.

9. Warranty and Support

The KONNWEI KW808 OBD2 Scanner comes with a 1-year warranty.

9.1. Package Contents

Upon receiving your KONNWEI KW808, please ensure all items are present:

• 1 x KONNWEI KW808 Scanner Unit
• 1 x OBD2 Connection Cable
• 1 x Nylon Carry Case
• 1 x English Product Manual

9.2. Technical Support

For technical assistance, software updates, or warranty claims, please refer to the contact information provided in the included product manual or visit the official KONNWEI website.