VDIAGTOOL VD31 OBD2 Scanner Car Diagnostic

VDIAGTOOL VD31 Popular Professional Automotive OBD2 Diagnostic Tool

VDIAGTOOL VD31 is a car code reader that can only diagnose the car’s OBD2 system, but cannot diagnose ABS, SRS, EBD and other car systems

VDIAGTOOL VD31 is an enhanced OBDII scanner diagnostic tool that is easy to operate and has full functions. It performs all 10 essential OBD2 tests: ✅ Turn off the Check Engine Light (CEL) ✅ Reads/clears fault codes ✅ Display live data with 4-in-1 graphing ✅ Reads freeze frames ✅ One-click I/M readiness (smog check) ✅ On-board monitor test (Mode 06) ✅ Component test ✅ O2 sensor test ✅ Vehicle information and module presence.

VD30PRO car engine fault code reader also includes additional features such as ✅Voltage testing ✅DTC lookup ✅Data playback ✅Data printing✅Key batterry/frequency test✅Support saving 16 sets of key information

, making it a comprehensive automotive diagnostic tool. It’s ideal for individual car owners and DIY enthusiasts, significantly saving you time and money on trips to the dealership!

1. Wide Compatibility:

VDIAGTOOL VD31 universal obd2 scanner can scan and work on American (USA) Cars (1996-now)、European Cars (2003-now)、Japanese Cars (2008-now)、Chinese Cars (2010-now) and so on. This obd2 code reader is compatible with all OBDII protocols including J1850 PWM, J1850 VPW, ISO9141-2, KWP2000, and CAN. It is compatiable with cars and trucks, support lifetime software updates.

4. Professional Battery Voltage Test:

VD31 OBD2 code reader support Battery Test, Cranking Test,Charging Test gather real-time battery voltage, analyze information automatically in no time, and display results in a graph which will ensure that you can access and analyze the accurate live data and determine the battery’s health status or expected remaining life.

5. Read/Clear Codes & Lookup 98,000+ DTC Definitions

A Diagnostic Trouble Code (DTC) is set in a vehicle’s onboard computer when a fault occurs in any monitored system. DTC codes are sent to the vehicle’s instrument panel to trigger a warning light. This car check engine light scanner retrieves generic codes, manufacturer specific codes, pending codes, permanent codes and displays DTC definitions on the TFT screen, find out the root causes and clear the codes after fixed.Featuring a built‑in library of over 98,000+ DTC definitions, this auto scanner diagnostic code scanner explains faults in plain English.

7. One-Click SMOG CHECK:

VDIAGTOOL VD31 OBD2 scanner code reader features One-Click I/M Readiness hot key that shows various sensors ready status on a single screen and help you keep the engine in good conditions, and get the vehicle ready for the annual smog check.

8. 4 IN 1 Comprehensive Live Data and Retrieve Freeze Frame:

This engine scanner code reader can read data from vehicle sensors, such as Engine RPM, Intake air temperature, Short/Long term fuel, Misfire data, Throttle position, Engine coolant temperature, Oxygen sensor voltages, Mass air flow and ect. Display 4 PIDs simultaneously and merge them into one to compare. Retrieve freeze frame: DTCFRZF, FUELSYSA, ETC, SHRTFT1, LONGFT1, MAP, RPM, VSS, IAT….etc, which is a valuable diagnostic aid.

9.Key Batterry&Frequency Detection,16-group Key Data Storage

Detect key battery level and signal frequency. Save up to 16 sets of key information for convenient data management.

10. Easy to Use & Reliable Performance

VD31 car diagnostic tool features clear menu prompts and one-touch scanning—just plug in, select “Scan,” and you’ll instantly get fault codes and readiness status. There are no extra steps or frequent software downloads, making it perfect for novice drivers.

The VD31 car code reader features an upgraded processing chip and a rugged, drop-proof housing designed to withstand harsh garage and roadside conditions. It’s a trusted OBD-II scanner diagnostic tool for professionals and DIY enthusiasts alike, offering exceptional durability and lifetime warranty!

11.2 Years Warranty, Lifetime Free Updates & 24/7 Tech Support：

VDIAGTOOL VD31 car code reader automotive diagnostic tool comes with 2 years warranty, lifetime free software updates through connecting to windows PC using the USB cable included, and 24/7 tech support. For any questions or concerns, feel free to drop us a message through www.VDIAGTOL.com.

1.Wide Compatibility and Language Support

This universal code reader supports all OBD2 protocols: KWP2000, ISO2000, ISO9141, J1850 VPW, J1850 PWM and CAN and can work on almost all OBD2/EOBD/CAN Vehicles:

➤American (USA) Cars (1996-now)
for Chrysler, for Ford, for GM, for Jeep, etc.

➤European Cars (2003-now)
for Alfa Romeo, for SAAB, for Acura, for Opel, for Audi, for Seat, for Peugeot, for Bentley, for Skoda, for Daewoo, for Benz, for Daihatsu, for Land Rover, for BMW, for Vauxhall, for Citroen, for Volvo, for Fiat, for Volkswagen, for Ford, for Jaguar, etc.

➤Asia Cars (2005-now)
for KIA, for Isuzu, for Honda , for Mitsubishi, for Hyundai , for Dacia , for Lexus , for Mazda, for Nissan, for Subaru , for Suzuki, for Toyota. etc.

➤Chinese Cars (2010-now)
for BYD, for Chery, for Geely, for Great Wall, for Karry etc.

🚩8Languages Supported: English, Chinese, French, Spanish, German, Russian, Italian, Polish
(Users can switch languages independently.)

Note: Please leave us message in below format, we will check the compatibility within 24 hours. for example: XX Car Brand, 2005, 2.0cc, Diesel, VIN:XXXXXXXXXXX

2.Turn off Check Engine Light(MIL):

1)Parts might cause your check engine light on include:

1. Gas Cap;

2. Oxygen Sensor;

3. Air Fuel Ratio Sensor;

4. Mass Air Flow Sensor;

5. Ignition Coils;

6. Spark Plug Wires;

7. Spark Plugs;

8. Thermostat;

9. EGR Valve;

10. Evaporatative Emission Canister Purge Valve(EVAP);

11. Catalytic Converter;

……………

2)what should you do if the car engine fault light comes on?

1.You only need to plug the VD31 OBD2 interface into the car’s 16-pin OBDII port, press the button as needed, and you will immediately see the error code and its definition on the screen;

2.Based on diagnosing the problem, you can choose to repair it yourself or go to a repair shop to avoid being charged high fees by the repair shop.

5. 100000+ DTC Lookup

VD31 OBD2 car fault code reader has a built-in DTC lookup library of over 98,563 fault codes, helping you quickly identify and resolve problems without needing to search for definitions online. It’s the perfect car companion for novice drivers.

6.One-Click SMOG CHECK:

With a dedicated I/M Readiness hotkey, this check engine code reader with reset instantly shows emission monitor status on a single screen—no cycling through submenus. Whether you’re prepping for a state inspection or diagnosing a stubborn MIL, the VD30 Pro escaner automotriz makes it simpler and more efficient than scanners like the FIXD car diagnostic tool that rely on color‑coded LEDs or require external printer

7.4 IN 1 Comprehensive Live Data:

This engine scanner code reader can read data from vehicle sensors, such as Engine RPM, Intake air temperature, Short/Long term fuel, Misfire data, Throttle position, Engine coolant temperature, Oxygen sensor voltages, Mass air flow and ect. Display 4 PIDs simultaneously and merge them into one to compare.

8.DATA RECORD & REPORT & PRINT

This VD31 fault code reader features graphing, data logging, playback, and report printing capabilities. Reports can be shared and submitted via Bluetooth/email for further analysis. The diagnostic report function automatically records basic diagnostic information, helping users avoid blind repairs, saving time and money, and making diagnosis more convenient.

9.Plug and Play

No complicated learning process required—the VD31 car fault code reader starts immediately upon connecting to the car’s OBD2 port. The clear menu prompts enable one-click scanning to read car engine information. No smartphone, Wi-Fi, or any setup is needed, and the connection is stable.

Compared to similar scanners with obscure LED indicators or small displays, the VD30Pro car scanner provides full-text feedback, ensuring you clearly understand what to do next.

10.Chek the batterry level and frequency of the kay

The VD31 will display the installed 9V battery level in the upper right corner. This function can prevent situations where the key suddenly runs out of power and cannot open the car door or start the car.For more accurate key battery level testing, select your vehicle brand directly.

Package List

1*VD30pro