VD31

Looking for a reliable tool to test your car keys? The VD31 is equipped with cutting-edge technology that allows you to easily test your vehicle’s key functionality, ensuring your keys are working properly and efficiently.

The VD31 can perform all 10 OBD2 tests, including reading and clearing fault codes, real-time data monitoring, freeze frame retrieval, one-click I/M readiness check, on-board monitor test, component test, O2 sensor test, vehicle information, and module presence check.

It can read data from vehicle sensors such as engine RPM, intake air temperature, short/long-term fuel, misfire data, etc., and display 4 PIDs simultaneously, merging them into one chart for comparison.

The VD31 features a patented I/M One-Click Readiness Key for quick state emissions readiness check (smog check) and drive cycle verification.

A Diagnostic Trouble Code (DTC) is generated when a fault occurs in a vehicle's monitored system, triggering a warning light on the instrument panel. This car check engine scanner retrieves generic, manufacturer-specific, pending, and permanent codes, displays their definitions on the TFT screen, helps identify the root causes, and clears the codes once the issue is fixed.

VDIAGTOOL VD31 universal OBD2 scanner supports all OBDII protocols, including J1850 PWM, J1850 VPW, ISO9141-2, KWP2000, and CAN. It works with most American, European, and Asian vehicles sold in the US after 1996 that are OBDII compliant and use 12 volts, including sedans, trucks, SUVs, and minivans.

To ensure the vehicle is in good condition for diagnosis, the battery voltage test function can check the real-time voltage of your vehicle.