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OBD2 Diagnostic Tool for Annual Automobile MOT Test

V311N is an obd diagnostic tool for annual automobile pre-inspection and MOT test. With the MOT diagnostic tool, user is able to know can the car pass the annual automobile inspection or not in advance. If not, user can check the problem or send the car for preparation before inspection. The obd2 diagnostic tool is also able to obtain DTC code, real time vehicle information, sensor data from the vehicle. And it is also able to check emission status, view freeze frame etc. V311N is with same function as V309N MOT diagnostic tool. But V311N supports printer. Only OBD-II compliant vehicles can work with this automotive diagnostic tool.
  • V311N
  • Fiberall

Main Features of V311N OBD Diagnostic Tool

1, The auto diagnostic tool is for OBD-II compliant vehicles from worldwide. Which is equipped with the listed 9 protocols.

2, With both annual automobile pre-inspection function and obd-ii diagnostic function;

3, V311N is plug and play. No App is required, do not need to link with mobile or computer;

4, With new design handheld non slip shell, more convenient for operation;

5, Cover is ABS material, strong and durable;

6, Though it is handheld equipment, the vehicle diagnostic tool is with compact size and easy to carry.

7, Customized features for the MOT diagnostic tool are acceptable.


Main Functions of V311N Automobile Annual Inspection Diagnostic Tool

1, The automobile diagnostic tool is able to diagnosis engine fault;

2, Clear trouble codes and turn off the MIL ("Check Engine" light);

3, Display current sensor data, including:

- Engine RPM
- Calculated Load Value
- Coolant Temperature
- Fuel System Status
- Vehicle Speed
- Short Term Fuel Trim
- Long Term Fuel Trim
- Intake Manifold Pressure
- Timing Advance
- Intake Air Temperature
- Air Flow Rate
- Absolute Throttle Position
- Oxygen sensor voltages/associated short term fuel trims
- Fuel System status
- Fuel Pressure and so on.

4, I/M state detection;

5, Preliminary review of annual Automobile Inspection;

6, Freeze frame data;

7, Vehicle information;

8, Real time curve;

9, Print.

Note: The auto diagnostic tool supports the listed sensor data. But it only works when the vehicle model also supports the data.


Main Parameters of V311N Automobile MOT Diagnostic Tool

Part No.


Communication mode

OBD2 cable

Communication Protocols (the obd2   diagnostic tool is compatible with more than 95% vehicles equipped with   OBD-II protocols)

1. SAE J1850 PWM (41.6Kbaud)

2. SAE J1850 VPW (10.4Kbaud)

3. ISO9141-2(5 baud init, 10.4Kbaud)

4. ISO14230-4 KWP (5 baud init, 10.4 Kbaud)

5. ISO14230-4 KWP (fast init, 10.4 Kbaud)

6. ISO15765-4 CAN (11bit ID, 500 Kbaud)

7. ISO15765-4 CAN (29bit ID, 500 Kbaud)

8. ISO15765-4 CAN (11bit ID, 250 Kbaud)

9. ISO15765-4 CAN (29bit ID, 250 Kbaud)

Working voltage


Working current


Working temperature


Storage temperature


Product dimension



Dark Green/Black



Important note: Please be advised that different annual automobile inspection policy in different areas are different. So the MOT auto diagnostic tool is not a finished product in stock. It should be customized according to different requirement. Buyer should have good understanding of the local policy of annual automobile inspection. And you need to provide some required information to us. So that we can put them into the obd diagnostic tool and meet your local requirement.

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+86 13418549260

+86 13418549260





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