1. Introduction
The KONNWEI KW870, KW880, and KW890 are advanced automotive diagnostic tools designed for both professional mechanics and DIY enthusiasts. These devices combine OBD2 diagnostic capabilities with a robust 12V car battery tester, offering a comprehensive solution for vehicle health monitoring. The KW890 model further includes an Oil Service Light Reset function.
This manual provides detailed instructions for setting up, operating, and maintaining your KONNWEI device to ensure optimal performance and accurate diagnostics.
Video: Overview of KONNWEI KW890 features, including diagnostic, battery test, oil reset, and language support.
2. Models Overview
The KONNWEI series offers different functionalities tailored to specific needs:
- KW870: This 2-in-1 scanner supports comprehensive OBD2 diagnostics and 12V battery testing. It is also compatible with 6V motorcycles.
- KW880: This 3-in-1 scanner includes OBD2 diagnostics, 12V battery testing, and a battery matching function.
- KW890: This 3-in-1 scanner provides OBD2 diagnostics, 12V battery testing, and an Oil Service Light Reset function.
Image: Comparison of KW870, KW880, and KW890 models highlighting their primary functions.
3. Package Contents
Please verify that all items are present in your package:
KW870 Package:
- KONNWEI KW870 OBD2 Scanner & Battery Tester Unit
- User Manual
- Retail Box
- Nylon Bag
- Mini USB Cable (for updates and data printing)
- Battery Clamp Clip Cable (for battery tester function)
- 16-pin OBD Cable (for OBD2 scanner function)
Image: Contents of the KW870 package, including the main unit, cables, and accessories.
KW880 Package:
- KONNWEI KW880 Battery Test & OBD2 Scanner Unit
- User Manual
- Retail Box
- Nylon Bag
- Mini USB Cable (for updates and data printing)
- OBD2 Cable to 16-pin OBD2 port
- OBD port to Battery Clip Adapter
Image: Contents of the KW880 package, including the main unit, cables, and accessories.
KW890 Package:
- KONNWEI KW890 Unit
- User's Manual in English
- Polyester Bag
- Battery Clamp Clip Cable
- 16 PIN OBD2 Cable
- USB Cable For Update And Print
Image: Contents of the KW890 package, including the main unit, cables, and accessories.
4. Setup
Before using your KONNWEI diagnostic tool, ensure it is properly connected to your vehicle.
4.1 Connecting for OBD2 Diagnostics:
- Locate your vehicle's 16-pin OBD2 port. This is typically found under the dashboard on the driver's side.
- Plug the 16-pin OBD cable firmly into the vehicle's OBD2 port.
- Connect the other end of the OBD cable to your KONNWEI device.
- The device will power on automatically.
4.2 Connecting for Battery Testing:
- Ensure the vehicle's ignition is off.
- Connect the red battery clamp to the positive (+) terminal of the 12V battery.
- Connect the black battery clamp to the negative (-) terminal of the 12V battery.
- Connect the battery clamp cable to your KONNWEI device.
- The device will power on automatically.
Image: KONNWEI KW890 showing connections for both OBD2 diagnostics and battery testing.
5. Operating Instructions
Your KONNWEI device offers a range of diagnostic and testing functions. Navigate through the menus using the directional buttons and confirm selections with the 'OK' button.
5.1 Car Diagnostic Scanner Functions (All Models)
These functions are available on all KW870, KW880, and KW890 models for 1996 and newer 12V gasoline and diesel vehicles that are OBD II compliant.
- Read Codes: Reads Diagnostic Trouble Codes (DTCs) from the vehicle's control modules to identify the cause of a problem.
- Erase Codes: Clears DTCs and turns off the Check Engine Light. Note: Underlying mechanical issues must be resolved for the light to remain off.
- I/M Readiness: Checks the status of emission-related monitoring systems to ensure the vehicle is ready for an emissions test.
- Data Stream: Displays live sensor data in both graphical and numeric formats, allowing for real-time monitoring of vehicle performance.
- Freeze Frame: Captures a snapshot of vehicle operating conditions at the moment a fault code was set.
- O2 Sensor Test: Retrieves O2 sensor monitoring test results.
- On-Board Monitoring: Retrieves results for emission-related powertrain components and systems that are not continuously monitored.
- EVAP System Test (Mode $8): Initiates a test of the evaporative emission control system.
- Vehicle Information: Retrieves vehicle identification number (VIN), calibration ID (CALID), and calibration verification number (CVN).
- DTC Lookup: Provides definitions for generic and manufacturer-specific diagnostic trouble codes.
Image: Visual representation of the full diagnostic capabilities of the KW890, including reading/clearing codes, I/M readiness, and data stream.
Image: Illustrates how the scanner can turn off the Check Engine Light after diagnosing and addressing issues.
Image: The 'Read Codes' function showing a specific fault code (P0010) and its description.
Image: The 'Data Stream' function displaying live vehicle data in a graphical format for detailed analysis.
5.2 Car Battery Tester Functions (All Models)
The battery tester function is compatible with all 12V automotive cranking lead-acid batteries, including Regular Flooded, AGM Flat Plate, AGM Spiral, GEL, EFB, and Lithium batteries.
- Battery Test: Measures the actual Cold Cranking Amps (CCA) capability, State of Health (SOH), and voltage of the battery.
- Cranking Test: Analyzes the actual cranking voltage and cranking time to assess the overall state of the cranking system.
- Charging Test: Evaluates the vehicle's charging system.
Image: The 'Car Battery Tester' function indicating battery health status (Good Battery, Good/Recharge & Charge/Retest, Replace & Bad cell/Replace).
Image: The 'Cranking Test' displaying a waveform and voltage readings to assess the cranking system.
5.3 Model-Specific Functions
5.3.1 KW880: Battery Match
The KW880 model includes a battery matching function, which may be required for certain vehicles after battery replacement to ensure proper system integration and performance.
5.3.2 KW890: Oil Service Light Reset
The KW890 allows you to reset the service lamps on the instrument cluster and perform resets for the Engine Oil Life system. This system calculates an optimal oil life change interval based on vehicle driving conditions and climate. The service indicator system is designed to alert the driver when the vehicle is due for service.
Supported Brands for Oil Service Light Reset:
Image: A table listing various car brands supported by the KW890 for the Oil Service Light Reset function.
Brands include, but are not limited to: Aston Martin, Acura, Audi, Bentley, BMW, Bugatti, Borgward, Chrysler/Jeep/Dodge, Citroen, Dacia, Daewoo, Ferrari, Fiat/Alfa Romeo/Lancia, Ford, GM, Holden, Honda, Infiniti, Isuzu, India (Indian Cars), Jaguar, Kia, Lamborghini, Lancia, Land Rover, Lexus, Maserati, Maybach, Mazda, MG, Mercedes-Benz, Mini, Mitsubishi, Nissan, Opel, Peugeot, Porsche, Proton, Renault, Rolls-Royce, Romeo/Alfa Romeo, Rover, Saab, Scion, Seat, Skoda, Smart, Subaru, Suzuki, Toyota, Vauxhall, Volvo, VW.
6. Maintenance
6.1 Software Updates
Your KONNWEI device supports free software upgrades. Connect the device to a computer using the provided USB cable and follow the instructions on the KONNWEI website or software application to download and install the latest firmware. This ensures your scanner has the most current vehicle data and diagnostic capabilities.
6.2 Printing Data
Diagnostic data can be printed for record-keeping or further analysis. Connect the device to a computer via USB and use the KONNWEI software to print reports.
Image: Illustrates the process of software upgrading via a laptop and printing diagnostic reports.
6.3 Cleaning
Wipe the device with a soft, damp cloth. Do not use abrasive cleaners or solvents. Keep the connectors clean and free of debris.
7. Troubleshooting
- No Power: Ensure the OBD2 cable or battery clamps are securely connected. The device draws power directly from the vehicle.
- Communication Error: Verify the OBD2 cable is correctly plugged into the vehicle's port and the device. Ensure the vehicle's ignition is on (engine off for diagnostics, engine running for some live data).
- Check Engine Light Returns After Clearing: If the Check Engine Light reappears shortly after clearing codes, it indicates an underlying issue that requires repair. Clearing codes only resets the light; it does not fix the problem.
- Help Button: The device features a 'Help' button (often marked with a '?' or 'I/M' button) that provides on-screen help information and a Code Breaker function to assist in understanding diagnostic trouble codes.
Image: The 'Help Button' function, explaining its role in providing information and code breaking assistance.
8. Specifications
- Brand Name: KONNWEI
- Origin: Mainland China
- Certifications: CE, FCC, RoHS
- Supported Languages (KW870): English, French, German, Spanish, Russian, Polish, Italian, Portuguese, Dutch
- Supported Languages (KW880/KW890): English, French, German, Spanish, Russian, Polish, Italian
- Supported Battery Types: Regular Flooded, AGM Flat Plate, AGM Spiral, GEL, EFB, Lithium Battery (for 12V systems)
- Package Dimensions: 28 cm (Length) x 20 cm (Width) x 8 cm (Height)
- Package Weight: 0.919 kg
Image: Display of the multi-language selection menu available on the KONNWEI device.
Image: Illustrates the compatibility of the device with various 12V vehicles, including cars, motorcycles, and trucks.
9. User Tips
- The KW890 model is versatile and can be used for both cars and motorcycles, making it a comprehensive tool for various 12V vehicle types.
- For accurate battery test results, ensure the battery terminals are clean and the clamps are securely attached.
- Regularly check for software updates to ensure your device has the latest vehicle compatibility and diagnostic features.
10. Support
For technical assistance, software updates, or further inquiries, please refer to the official KONNWEI support channels or the contact information provided in your product packaging. Keep your user manual and product serial number handy when contacting support.
