Universal V320

V320 OBD2 Scanner Instruction Manual

Your guide to using the V320 OBD2 Code Reader for comprehensive vehicle diagnostics.

1. Product Overview

The V320 OBD2 Scanner is a plug-and-play diagnostic tool designed for gasoline cars supporting OBD II/EOBD standard protocols. It allows users to quickly read vehicle fault information and parameters, perform engine fault diagnosis, clear fault codes, and conduct various performance tests.

V320 OBD2 Scanner front view
Figure 1: Front view of the V320 OBD2 Scanner.

Key Features:

  • Engine Fault Diagnosis and MIL (Malfunction Indicator Lamp) turn-off.
  • Performance Test Function (Acceleration, Braking, Distance, Meter data).
  • I/M Ready Status for emissions-related monitor checks.
  • Real-Time Curve display for car speed, load value, coolant temperature, and engine speed.
  • Comprehensive Car Inspection: Data Stream, Vehicle Information, O2 Sensor, EVAP, Voltage.
  • Built-in Fault Code Library for quick DTC definitions.
  • Multi-language support.

2. Setup and Connection

The V320 OBD2 Scanner is designed for plug-and-play operation. It requires no batteries as it draws power directly from the vehicle's OBD2 port.

Locating the OBD2 Port:

The 16-pin OBD2 interface is typically located under the dashboard on the driver's side. Common locations include:

  1. Under the dashboard, to the left of the steering column.
  2. Under the dashboard, to the right of the steering column.
  3. Near the center console.
  4. In the glove compartment.
Diagram showing common OBD interface locations in a car and a close-up of the 16-pin plug.
Figure 2: Common locations for the 16-pin OBD2 diagnostic port in a vehicle.

Connection Steps:

  1. Ensure the vehicle's ignition is OFF.
  2. Locate the 16-pin OBD2 diagnostic port in your vehicle.
  3. Plug the V320 scanner's connector firmly into the vehicle's OBD2 port.
  4. Turn the vehicle's ignition to the ON position (engine can be off or running, depending on the desired diagnostic function). The scanner will power on automatically.

3. Operating Instructions

The V320 scanner features a 2.8-inch color display and intuitive button controls for navigation.

V320 scanner with labeled parts: 2.8 color display screen, Data stream, Direction keys, ESC to return, OK to confirm, Read codes, Product energized normally, Support vehicle detection, It is read that the vehicle is faulty, OBD interface.
Figure 3: V320 Scanner interface and button layout.

Navigation and Controls:

  • Direction Keys (Up, Down, Left, Right): Used to navigate through menus and select options.
  • OK Button: Confirms selections or enters sub-menus.
  • ESC Button: Returns to the previous screen or exits a function.
  • DAT Button: Likely for Data Stream access.
  • DTC Button: Likely for direct access to Diagnostic Trouble Codes.

Main Functions:

The main menu provides access to various diagnostic functions:

Multi-functional icons: Read DTC, Clear DTC, Freeze, Performance, Vehicle Info, Live Data, RT Curve, O2 Sensor, EVAP, DTC Lib, Voltage, I/M Ready State.
Figure 4: Overview of the V320's multi-functional capabilities.
  1. Read DTC (Diagnostic Trouble Codes): Retrieves current, pending, and permanent diagnostic trouble codes from the vehicle's ECU.
  2. Clear DTC: Erases diagnostic trouble codes from the vehicle's memory and turns off the Malfunction Indicator Lamp (MIL). Use with caution after addressing the underlying issue.
    Quick Clear Fault Code function showing a dashboard warning light before and after clearing.
    Figure 5: Visual representation of clearing a fault code.
  3. DTC Lib (Fault Code Library): Allows you to look up definitions for specific diagnostic trouble codes.
    V320 display showing 'DTC Lookup' and fault code definition structure.
    Figure 6: DTC Lookup interface for querying fault code definitions.
  4. Data Stream / Live Data: Displays real-time operational parameters from the vehicle's sensors and components. This can include engine RPM, vehicle speed, coolant temperature, fuel system status, and more.
    Comprehensive Car Inspection diagram showing Data Stream, Vehicle Info, O2 Sensor, EVAP, Voltage readings around a car silhouette.
    Figure 7: Comprehensive car inspection data display.
  5. I/M Ready Status: Checks the readiness of various emissions-related monitors to determine if the vehicle is ready for an emissions test.
    V320 with text 'I/M Ready Status' and various emissions-related monitors listed.
    Figure 8: I/M Readiness status screen.
  6. Performance Test: Measures vehicle performance metrics such as acceleration, braking, and distance. It also provides meter data like load percentage and odometer readings.
    Performance Test results table for Acceleration, Braking, Distance, and Meter Data.
    Figure 9: Performance test results display.
  7. Real Time Curve (RT Curve): Displays live data parameters in a graphical format, such as engine load percentage over time.
    Real Time Curve displaying a graph of LOAD_PCT(%).
    Figure 10: Real-time data displayed as a curve.
  8. Vehicle Info: Retrieves vehicle identification number (VIN), calibration ID, and calibration verification number (CVN).
  9. O2 Sensor: Monitors oxygen sensor readings.
  10. EVAP: Monitors the Evaporative Emission Control System.
  11. Voltage: Displays the vehicle's battery voltage.

4. Maintenance

The V320 OBD2 Scanner requires minimal maintenance. Keep the device clean and dry. Do not expose it to extreme temperatures or direct sunlight for extended periods. Store it in a safe place when not in use to prevent physical damage to the unit or its cable.

5. Troubleshooting

Common Issues and Solutions:

  • No Power/Device Not Turning On:
    Ensure the OBD2 connector is securely plugged into the vehicle's port. Verify the vehicle's ignition is in the ON position. Check the vehicle's battery voltage (must be within 9-16V).
  • Link Error/No Communication:
    Confirm the vehicle is OBD2 compliant. Ensure the ignition is ON. Check for damaged pins on the vehicle's DLC (Data Link Connector) or the scanner's connector. Try the scanner on another compatible vehicle to rule out a device issue.
  • Incompatible Vehicle:
    The V320 scanner supports standard OBD2 protocols. However, some vehicles, especially older models, electric cars, hybrid cars, 24V trucks, or specific regional models (e.g., certain Russian, French, Japanese, or Korean cars), may not be fully compatible or may not support all OBD2 functions. This device only provides standard OBD2 functions and does not support special functions like ABS Reset or Airbag Reset.

Known Incompatibilities:

  • Electric cars and Hybrid cars (e.g., Nissan Leaf).
  • 24V trucks.
  • Russian Cars: VAZ, UAZ, LADA.
  • Ssangyong Actyon (2009-2017), Korando 2.0 TD Diesel (2013-2017), Kyron 2.0 Diesel (2010-2017), Rexton (2011-2017).
  • Opel Corsa C 2004 1.3 CDTI.
  • Citroen C4/C5.
  • Chevrolet cars.
  • Renault Clio 2/Megane/Dacia Logan.

If you encounter compatibility issues, please provide your vehicle's make, year, engine displacement, and fuel type to the seller for assistance.

6. Specifications

FeatureDetail
ModelV320
Item TypeCode Readers & Scan Tools
Working VoltageDC 9~16V
Working CurrentApprox. 46~69mA
Operating Environment-20~60℃
Storage Temperature-20~60℃
Language SupportEnglish, German, Italian, Dutch, French, Spanish, Chinese, Russian
Dimensions (L x W x H)19.50 cm x 10.00 cm x 3.00 cm (7.67 in x 3.93 in x 1.18 in)
Weight0.358 kg
CertificationCE
OEM NO.29771
Supported ProtocolsSAE J1850 PWM (41.6Kbaud), SAE J1850 VPW (10.4Kbaud), ISO9141-2 (5 baud init, 10.4Kbaud), ISO14230-4 KWP (5 baud init, 10.4 Kbaud), ISO14230-4 KWP (fast init, 10.4 Kbaud), ISO15765-4 CAN (11bit ID, 500 Kbaud), ISO15765-4 CAN (29bit ID, 500 Kbaud), ISO15765-4 CAN (11bit ID, 250 Kbaud), ISO15765-4 CAN (29bit ID, 250 Kbaud)
Dimensions of the V320 scanner: Length 19.50cm/7.67inch, Width 10.00cm/3.93inch, Height 3.00cm/1.18inch.
Figure 11: Physical dimensions of the V320 OBD2 Scanner.

7. Warranty and Support

For product support, technical assistance, or warranty inquiries, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.

8. User Tips

No specific user tips are available at this time. Always refer to your vehicle's service manual for specific diagnostic procedures and safety precautions.

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