OBD2 / EOBD scanner with oil service light reset and battery voltage test
Model code: KW851 Manufacturer: Konnwei
KONNWEI KW851 is a 2-in-1 tool: a full OBD2 / EOBD engine scanner (like the KW850) plus an oil service light reset for many car brands. It also records the car battery voltage (cranking and charging) for lead-acid, AGM, gel and lithium batteries.
Product Functions:
• Read and erase generic and manufacturer-specific trouble codes (including pending codes) and turn off the Check Engine Light (MIL)
• Built-in DTC definition library
• I/M (emissions) readiness status
• Live PCM data stream (text and graph)
• Freeze frame data
• O2 sensor test
• On-board monitoring test (Mode 6)
• EVAP system test
• Vehicle information (VIN, CIN, CVN)
• Oil service light reset (automatic or manual selection; depends on the vehicle)
• Battery voltage test (cranking / charging)
• Built-in library of over 8,000 generic code definitions
Range of Diagnose:
Works on 1996 and newer OBD2 / EOBD compliant 12V petrol and diesel cars and light trucks (US 1996+, EU petrol 2001+ / diesel 2004+, Asian vehicles) with the 16-pin diagnostic connector. Supports all OBD2 protocols: CAN, KWP2000, ISO 9141-2, J1850 PWM and J1850 VPW.
Technical specification:
Display: 2.8" TFT colour screen
Input voltage: 12V (from the vehicle)
Operating temperature: -10 to 60°C (14 to 140°F)
Size: 20 × 10 × 3.5 cm
In the box: KW851, OBD2 cable, USB cable, user manual, protective bag.
The user manual is available from KONNWEI (konnwei.com, Support section).
Note: available functions depend on the vehicle make, model and year. Check the manufacturer's vehicle coverage before buying.
| Product type | Device with pre-installed software (standalone) |
|---|---|
| OEM (Original Equipment Manufacturer) product? i | No |
| For which vehicle | Cars |
| Price (USD) | $76 – $92 |
| Connection with computer / tablet / phone | USB |
| Vehicle power supply system | 12V |
| Supported protocols | J1979, CAN, KWP2000, SAE J1850, K-line |
| Other protocols (details) | ISO 9141-2, ISO 14230-4 (KWP2000), ISO 15765-4 (CAN), SAE J1850 PWM / VPW |
| Months of free updates | Lifetime |
| Subscription model (description) | Lifetime free software updates (no subscription). Updates are installed from a Windows PC over the USB cable using KONNWEI's update tool; the same connection is used to print saved reports. |
| Menu language | English, French, German, Spanish, Russian, Italian, Polish |
No compatibility data yet.
Generic OBD2 / EOBD engine and emission diagnostics on 12 V cars and light trucks with the 16-pin connector (KONNWEI states: American cars after 1999, European cars after 2002, Japanese and Korean cars after 2007, Chinese cars after 2009). The car must be OBD2 / EOBD compliant – check the "Vehicle Emission Control Information" sticker under the hood for "OBD II Certified"; cars with the private Japanese JOBD protocol (e.g. some Nissan units) are not supported. KONNWEI states it does not work with SsangYong, Lada / VAZ / UAZ, Opel Corsa C 2004 1.3 CDTI, Citroën C4 and C5, Renault Logan and Megane. The KONNWEI manuals give only "all 1996 and newer vehicles sold in the USA". Engine system only – no ABS, SRS, transmission or body systems. Oil service light reset: KONNWEI states coverage of 53 brands but publishes only part of the list – confirm your car before buying. Battery check is a voltage test only. Not supported: OBD-I vehicles, motorcycles, 24 V trucks and buses (J1939), hybrid / electric drive systems.
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KONNWEI is the brand of Shenzhen Jiawei Hengxin Technology Co., Ltd., a manufacturer of automotive diagnostic and maintenance tools based in Shenzhen, China. Founded in 2006, the company designs, produces and sells its own products and has been making OBD2 / EOBD scanners since its early years.
The KONNWEI range covers handheld OBD2 code readers and scanners, brand-specific full system scanners (VAG, Mercedes-Benz, BMW, Ford, Honda / Acura), Bluetooth OBD2 adapters and full system scanners with free mobile apps (MAXOBD, KDIAG), OBD2 head-up displays, TPMS sensor programming tools, as well as battery testers, battery monitors, chargers and jump starters.
Production runs on in-house SMT lines under an ISO 9001 quality system, and products carry CE, FCC, RoHS and UKCA certifications. KONNWEI tools are sold through distributors, retailers and online marketplaces in Europe, Asia, North America and other regions, and OEM / ODM customisation is available for business partners.
Website: www.konnwei.com
