v519 OBD2 Diagnostic Tool - Owner's Manual
- Vareon
- Jul 24, 2025
- 2 min read
Updated: Aug 3, 2025
V519 OBD2 Diagnostic Tool – Owner’s Manual
If you're a DIY car enthusiast or professional mechanic, the V519 OBD2 Scanner is an invaluable diagnostic tool. With support for nine OBD II/EOBD protocols and a suite of advanced features, it empowers users to read, understand, and clear vehicle fault codes in seconds.
What Is the V519 OBD2 Scanner?
The V519 is a plug-and-play, multi-functional vehicle diagnostic tool. It allows you to:
Read & clear engine fault codes
Monitor real-time data
Check I/M readiness
Test oxygen sensors and more
It’s designed for ease of use and works with most OBD II-compliant vehicles built after 1996.
What’s in the Box?
1× V519 OBD2 Scanner
1× Instruction manual
Key Specifications
Display: 2.8" color LCD (240×320)
Power Supply: DC 12–16 V (via vehicle OBD port)
Operating Temp: –20 °C to 65 °C
Dimensions: 155 mm × 87 mm × 24 mm
Languages: 10 total (English, Spanish, German, and others)
Supported OBD II Protocols
SAE J1850 PWM & VPW
ISO 9141‑2, 14230‑4 KWP
ISO 15765‑4 CAN (11-bit & 29-bit, 250 K/500 K baud)
Note: The V519 is not compatible with hybrid or electric vehicles.
Key Features & Functions
Read Codes – Displays fault codes & definitions
Clear Codes – Turns off the check engine light
Freeze Frame – Snapshot of sensor values when a fault occurred
I/M Readiness – Checks emissions status
Live Data – Real-time sensor output
Vehicle Info – Reads VIN & calibration IDs
Mode 6 – On-board monitor test
O2 Sensor Test – Checks oxygen sensor performance
Mode 8 – Component test (e.g., EVAP system)
Battery Voltage Check
Important Notes
Not waterproof – do not use in rain
Do not disassemble the unit
Not compatible with hybrid or EVs
Store in dry environments
Warranty Disclaimer
Warranty may be void if:
Product is damaged from drops, moisture, fire, or extreme temperatures
Product is modified or disassembled
Product is misused or improperly stored
Security seals are broken
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