1. Introduction
The KONNWEI KW870 is a versatile 2-in-1 device designed for comprehensive vehicle diagnostics and battery health analysis. It combines the functionalities of an OBD2 diagnostic scanner and a 6V/12V car battery tester. This tool helps users identify the cause of engine check lights, perform repairs, and accurately assess the health of various lead-acid batteries. Its user-friendly interface and multi-language support make it an essential tool for both professional mechanics and DIY enthusiasts.
2. Package Contents
Ensure all items are present in your package:
- 1x KONNWEI KW870 OBDII Tool & Battery Tester
- 1x Battery Clip Clamp
- 1x 16 Pin OBDII Cable
- 1x Upgrade Data Cable (USB)
- 1x User Manual
- 1x Packing Box
- 1x Polyester Bag
3. Setup and Connection
3.1 Connecting for OBD2 Diagnostics
To perform OBD2 diagnostics, connect the KW870 to your vehicle's OBD2 port using the provided 16 Pin OBDII cable. The OBD2 port is typically located under the dashboard on the driver's side.
3.2 Connecting for Battery Testing
For battery testing, switch to the battery clip clamp. Connect the red clamp to the positive (+) terminal of the battery and the black clamp to the negative (-) terminal. Ensure a secure connection.
4. Operating Instructions
4.1 General Navigation
Use the directional buttons (up, down, left, right) to navigate through menus. Press the "OK" button to confirm a selection and "ESC" to go back to the previous screen. The "I/M" button provides quick access to I/M Readiness status.
4.2 OBD2 Diagnostic Functions
The KW870 supports all 10 OBDII test modes for comprehensive engine system diagnostics:
- Read Codes: Displays Diagnostic Trouble Codes (DTCs) stored in the vehicle's computer.
- Erase Codes: Clears DTCs from the vehicle's computer and turns off the Check Engine Light (MIL).
- I/M Readiness: Checks the status of emission-related monitoring systems.
- Data Stream: Displays live PCM data parameters in graphical and numerical formats.
- Freeze Frame: Shows a snapshot of operating conditions at the time an emission-related fault occurred.
- O2 Sensor Test: Retrieves O2 sensor monitor test results.
- On-Board Monitoring Test: Retrieves test results for emission-related powertrain components and systems.
- EVAP System Test: Initiates a test of the Evaporative Emission System.
- Vehicle Information: Retrieves vehicle identification number (VIN), calibration ID (CIN), and calibration verification number (CVN).
- DTC Lookup: Provides definitions for generic and manufacturer-specific trouble codes.
4.3 Battery Testing Functions
The KW870 provides three battery test modes to accurately assess battery health:
- Battery Test: Analyzes the battery's overall health, including voltage, internal resistance, Cold Cranking Amps (CCA), and charge status.
- Cranking Test: Tests the vehicle's starting system, including the starter motor.
- Charging Test: Evaluates the vehicle's charging system, including the alternator.
- Waveform Analysis: Displays real-time battery voltage in a waveform graph for detailed analysis.
4.4 Language Selection
The KW870 supports multiple languages. To change the language, navigate to the 'Languages' option in the main menu and select your preferred language from the list. Supported languages include English, French, German, Dutch, Spanish, Russian, Portuguese, Italian, and Polish.
5. Maintenance and Updates
5.1 Software Updates
The KW870 offers lifetime free software updates to ensure compatibility with new vehicles and improved functionality. To update the device:
- Press any button on the scanner BEFORE connecting it to your PC.
- Search online for the technical support website:
www.itoscanner.com. - Download the UPLINK OBD Upgrade Tool software and unzip it to your computer desktop.
- Open "Uplink" to upgrade and print data.
5.2 Cleaning
Clean the device with a soft, damp cloth. Do not use abrasive cleaners or solvents.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| "Communication Error" on screen |
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| Device does not power on |
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| Inaccurate battery test results |
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7. Specifications
| Feature | Detail |
|---|---|
| Brand Name | KONNWEI |
| Model | KW870 |
| Functions | Diagnosis + Battery Test |
| Certification | CE, FCC, RoHS |
| Origin | Mainland China |
| Languages | Multi-language (English, French, German, Dutch, Spanish, Russian, Portuguese, Italian, Polish) |
| System Voltage (Battery Test) | 6-12 Volts |
| Test Result (Battery Test) | Good, Recharge or Replace |
| Battery Capacity Range | CCA: 100-2000, BCI: 100-2000, CA: 100-2000, MCA: 100-2000, JIS: 26A17-24SH52, DIN: 100-1400, IEC: 100-1400, EN: 100-2000, SAE: 100-2000 |
| Supported Battery Types | Ordinary lead-acid batteries, AGM flat plate batteries, AGM spiral batteries, Gel batteries, EFB, Lithium |
| OBD2 Compatibility | All 12V gasoline and diesel cars (OBDII compliant). Not supported for certain Russian cars (VAZ, UAZ, LADA), Ssangyong Actyon (2009-2017), Ssangyong Korando (2.0 TD Diesel, 2013-2017), Ssangyong Kyron (2.0 Diesel, 2010-2017), Ssangyong 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. |
| Display | 2.8” LCD screen |
| Main Chip | STM-32 |
| Package Length | 26 cm |
| Package Width | 19 cm |
| Package Height | 5 cm |
| Package Weight | 0.95 kg |
8. Warranty and Support
The KONNWEI KW870 comes with a 12-month manufacturer's limited warranty for defective items (excluding items damaged and for misuse after receipt). Accessories are covered with a 3-month warranty.
For technical support, software updates, or any inquiries, please visit the official KONNWEI website at www.itoscanner.com or refer to the contact information provided in your user manual.
9. User Tips
- Always ensure the vehicle's ignition is ON when performing OBD2 diagnostics to avoid communication errors.
- For accurate battery test results, make sure the battery terminals are clean and the clamps are securely attached.
- Regularly check for software updates on
www.itoscanner.comto keep your device up-to-date with the latest vehicle protocols and features. - When performing a battery test, select the correct battery type (e.g., Regular Flooded, AGM, GEL) for the most precise readings.
