Code Reader Guide
VDIAGTOOL VD10
VDIAGTOOL VD10 OBD2 Scanner Code Reader Car Diagnostic Tool Engine Fault Code Reader for Turn Off CEL with Freeze Frame/I/M Readiness for All OBDII Protocol Cars, OBD2 Scanner Diagnostic Tool
VDIAGTOOL VD30 Pro
VDIAGTOOL VD30 Pro Car Code Reader, OBD2 Scanner Diagnostic Tool for Cars and Trucks, Check Engine Code Reader, OBD2 Scanner with Reset, escaner automotriz I/M Readiness for All OBDII Vehicles
VDIAGTOOL VD31
VDIAGTOOL VD31 OBD2 Code Reader, Car Diagnostic Tool Engine Fault Code Reader for Turn Off CEL with Freeze Frame/I/M Readiness, Component & O2 sensor tests, Data playback/printing, and checks key battery levels
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Here are the main differences between the VD10, VD30 Pro, VD31
| VDIAGTOOL | VD10 | VD30 Pro | VD31 |
| Weight | 14.4 ounces | 7.69 ounces | 7.69 ounces |
| Display | 2.8" TFT Color Display | 2.8" TFT Color Display | 2.8" TFT Color Display |
| Supported Languages | 6 | 8 | - |
| Operating Temperature | 0 to 60°C (32 to 140°F) | 0 to 60°C (32 to 140°F) | 0 to 60°C (32 to 140°F) |
| Storage Temperature | -20 to 70°C (-4 to 158°F) | -20 to 70°C (-4 to 158°F) | -20 to 70°C (-4 to 158°F) |
| Connection | Lined Connection via main Cable | Lined Connection via main Cable | Lined Connection via main Cable |
| Power Source | Powered by connecting to OBDII port or using USB cable | Powered by connecting to OBDII port or using USB cable | Powered by connecting to OBDII port or using USB cable |
| Vehicle Compatibility | Works on OBDII & EOBD Vehicles (12 volt) | Works on OBDII & EOBD Vehicles (12 volt) | Works on OBDII & EOBD Vehicles (12 volt) |
| 10 OBD2 Functions | ✔ | ✔ | ✔ |
| Read Code | ✔ | ✔ | ✔ |
| Clear Code | ✔ | ✔ | ✔ |
| Freeze Frame Data | ✔ | ✔ | ✔ |
| Live Data Stream | Live Data List | 4-In-1 Live Data Graphing | 4-In-1 Live Data Graphing |
| One-click I/M Readiness | ✔ | ✔ | ✔ |
| O2 Sensor Test | ✘ | ✔ | ✔ |
| On-Board Monitoring Test | ✘ | ✔ | ✔ |
| Component Test | ✘ | ✔ | ✔ |
| Vehicle Information | ✔ | ✔ | ✔ |
| Module Information | ✘ | ✔ | ✔ |
| Battery Voltage Test | ✘ | ✔ | ✔ |
| DTC Lookup | ✘ | ✔ | ✔ |
| Data Review&Printing | ✘ | ✔ | ✔ |
| All OBD2 Protocols | ✔ | ✔ | ✔ |
| LED Indicators | Green, Yellow, Red | Green, Yellow, Red | Green, Yellow, Red |
| Check Car Key Battery Level | ✘ | ✘ | ✔ |
| Update Period | Lifetime | Lifetime | Lifetime |