KONNWEI KW320 – OEM OBD2 Diagnostic with Color Screen, Smog Check, DTC & VIN

Short Version

KONNWEI KW320 is a fast and convenient OBD2/EOBD/CAN code reader for 12V gasoline and diesel vehicles. It reads and clears engine fault codes (DTCs), displays live data stream in both list and graph views, features one-click I/M Readiness for easy inspection checks, as well as one-click VIN and a built-in DTC lookup library. The bright 2.8” color screen and color-coded LED indicators (green/yellow/red) make diagnosis quick and understandable even for beginners.

The KW320 supports all 10 OBD modes including Mode 6 (on-board monitoring), O2 test, and EVAP test data. It works on most OBD2/EOBD-compliant cars: USA 1996→, EU gasoline ~2001→, EU diesel ~2004→ (variations may occur). Perfect for finding out why the Check Engine light is on, clearing codes after repair, and verifying that monitors are ready for inspection/SMOG.

Want to compare more readers? Check out our collection of code readers.

Key Features

• One-click I/M Readiness: Quick emissions status check before inspection.
• Read/Clear DTC: Generic (P0) and manufacturer-specific (P1) + pending.
• Live data & graphs: RPM, speed, ECT, STFT/LTFT, O2, MAP/MAF etc.
• Freeze frame: Snapshot of data at the time of a fault event.
• Mode 6: On-board monitoring results for in-depth troubleshooting.
• O2/EVAP: Display O2 sensor data and EVAP test data.
• One-click VIN/DTC dictionary: Retrieve VIN/CIN/CVN and look up code descriptions.
• Battery voltage: Quick check of system voltage.
• Multilingual menu (9 languages) and built-in speaker.

Specifications

• Display: 2.8” TFT color, high contrast
• Power: Via OBD2 port (12V)
• Protocols: ISO9141-2, ISO14230-4 (KWP 5-baud/fast), ISO15765-4 CAN (11/29-bit, 250/500 kbit/s), SAE J1850 PWM/VPW
• OBD Modes: Mode 01–10 (incl. Mode 6, O2, EVAP)
• Languages: EN, FR, DE, NL, ES, RU, PT, IT, PL
• Lifespan: up to ~8000 h (stated)
• Certificates: CE, FCC, RoHS

Compatibility

• USA: OBD2 1996→
• Europe: Gasoline ~2001→, Diesel ~2004→ (EOBD)
• Asia/China: Typically 2006/2011→ (varies by model/market)
• Support: 12V gasoline/diesel/HEV with OBD2/EOBD & 16-pin connector

Note: 24V vehicles and certain JOBD models are not supported. No scanner works on all cars – always check for OBD2 support.

Quick Start

1. Turn on ignition (engine off if manual requires).
2. Connect KW320 to the 16-pin OBD2 port.
3. Select Read Codes to read faults; Clear after repair.
4. Check I/M – perform drive cycle until all monitors are Ready for inspection.
5. View Live Data for diagnosis and logic check.

FAQ

Does it clear all warning lights? The KW320 handles engine/MIL via OBD2. ABS/SRS/EPB require brand-specific/full system tools.

Does it work on diesel? Yes, if the car is OBD2/EOBD compliant (EU diesel typically 2004→).

Package Contents

• 1 × KONNWEI KW320 scanner
• 1 × User manual
• 1 × Color box