Code Reader V318 OBD Auto Scanner User Manual

1. Introduction

The V318 OBD II / EOBD code reader is a specialized diagnostic tool designed for all OBD II compliant vehicles, including those equipped with Next Generation Protocol - Control Area Network (CAN). This device supports vehicles updated in 1996 and later, including cars and light trucks sold in the US, as well as domestic, Asian, and European vehicles. It is essential for verifying OBD II compliance, which typically requires a 16-pin Data Link Connector (DLC) and an "OBD II Certified" label under the hood or by the radiator.

This manual provides comprehensive instructions for setting up, operating, and maintaining your V318 code reader to effectively diagnose vehicle issues and clear trouble codes.

Image: The V318 OBD II Code Reader, shown alongside its retail packaging and included user manual, highlighting its compact design and essential components.

2. What's in the Box

Upon opening the package, you should find the following items:

• 1 x V318 Code Reader Unit
• 1 x User Manual

3. Key Features

The V318 Code Reader offers a range of powerful features to assist in vehicle diagnostics:

• Multi-Brand Car Support: Works with all 1996 and later OBDII compliant US, European, and Asian vehicles.
• Multi-Language Support: Supports English, German, Spanish, Dutch, French, Italian, Russian, Chinese, Japanese, and Korean.
• Shortcut Key Queries: Quick access to VIN and DTC information.
• Diagnostic Functions:
  • Read/Clear Diagnostic Trouble Codes (DTCs)
  • I/M Readiness Status
  • Vehicle Information (VIN, CID, CVN)
  • Turn off the Malfunction Indicator Lamp (MIL) - 'Check Engine' light
  • Display Current Sensor Data (Data Stream)
  • View Freeze Frame Data
  • O2 Sensor Test
  • On-board Monitor Test
  • EVAP System Test
  • Battery Voltage Check

Image: An illustration of the V318's nine primary OBD2 functions, including reading and clearing fault codes, I/M readiness, EVAP system testing, battery voltage monitoring, on-board monitor tests, O2 sensor tests, freeze frame data, and live data stream display.

4. Technical Specifications

4.1 Supported Protocols

• SAE 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)

Image: The V318 device displaying a list of compatible OBD2 standard protocols, including various SAE, ISO, and CAN protocols, indicating its broad vehicle compatibility.

4.2 General Specifications

Image: The rear view of the V318 OBD2 scanner, displaying its model number, operating voltage range (DC9-16V), and operating temperature range (0-50°C), along with regulatory compliance marks.

5. Setup Guide

5.1 Connecting the Device

1. Locate the vehicle's 16-pin Data Link Connector (DLC). This is usually found under the dashboard on the driver's side.
2. Ensure the vehicle's ignition is OFF before connecting the V318.
3. Firmly plug the V318's OBD II connector into the vehicle's DLC.
4. Turn the vehicle's ignition to the ON position (engine can be off or running, depending on the test). The V318 will power on automatically.

Image: A detailed view of the V318 OBD II scanner, highlighting its color screen, navigation buttons (ESC, I/M, OK, directional arrows), and the integrated OBD II connector, ready for vehicle connection.

6. Operating Instructions

The V318 features an intuitive interface with a main menu and navigation buttons. Use the directional arrows to move through options, 'OK' to select, and 'ESC' to go back.

6.1 Main Menu Overview

The main menu provides access to the primary functions:

• OBD/EOBD: For standard diagnostic functions like reading/clearing codes, I/M readiness, data stream, etc.
• Battery: To check the vehicle's battery voltage.
• DTC Lib: A built-in library to look up definitions of Diagnostic Trouble Codes.
• Setup: To configure device settings such as language and units of measure.

6.2 Performing Diagnostic Functions (OBD/EOBD)

From the main menu, select "OBD/EOBD" to access the diagnostic menu. Here are common functions:

1. Read Codes:

   Select "Read Codes" to display current, pending, and historic Diagnostic Trouble Codes (DTCs) stored in the vehicle's computer. This helps identify the cause of the 'Check Engine' light.

2. Erase Codes:

   Select "Erase Codes" to clear all DTCs from the vehicle's computer and turn off the Malfunction Indicator Lamp (MIL). Note: Only clear codes after addressing the underlying issue, otherwise the light will likely return.

   

   Image: The V318's display indicating its ability to turn off the engine warning light by reading and clearing both generic and manufacturer-specific diagnostic trouble codes, and resetting monitors.
3. I/M Readiness:

   Select "I/M Readiness" to check the status of emission-related monitors. This is crucial for emissions testing. A "Ready" status indicates the monitor has completed its diagnostic cycle.

4. Vehicle Info:

   Select "Vehicle Info" to retrieve vehicle identification information such as VIN (Vehicle Identification Number), CID (Calibration ID), and CVN (Calibration Verification Number).

5. Data Stream:

   Select "Data Stream" to view live sensor data from the vehicle's engine control unit (ECU). This includes parameters like Engine RPM, Calculated Load Value, Coolant Temperature, Fuel System Status, Vehicle Speed, Short/Long Term Fuel Trim, Intake Manifold Pressure, Timing Advance, Intake Air Temperature, Air Flow Rate, Absolute Throttle Position, Oxygen sensor voltages, and Fuel Pressure.

   

   Image: The V318 displaying a live data stream, showing various sensor readings and parameters, along with a section for trouble codes and freeze frame data, providing a comprehensive diagnostic overview.

6. EVAP Test:

   Select "EVAP" to perform the Evaporative Emission Control System test, which checks for leaks in the fuel vapor system.

6.3 DTC Lookup

From the main menu, select "DTC Lib". You can manually enter a DTC (e.g., P0000) to view its definition and description, helping you understand the nature of the fault.

6.4 Battery Voltage Check

From the main menu, select "Battery". The device will display the current voltage of your vehicle's battery, which can help in diagnosing charging system issues.

6.5 System Setup (Language and Units)

From the main menu, select "Setup". You can adjust the following settings:

• Language: Choose from English, German, Spanish, Dutch, French, Italian, Russian, Chinese, Japanese, or Korean.
• Unit of Measure: Switch between English (Imperial) and Metric units for data display.

Image: The V318's display showcasing its multi-language support, with flags representing the 10 available languages: English, Deutsch, French, Spanish, Italian, Russian, Dutch, Chinese, Japanese, and Korean.

6.6 Operational Demonstration Video

7. Maintenance

• Cleaning: Use a soft, damp cloth to clean the exterior of the V318. Do not use abrasive cleaners or solvents.
• Storage: Store the device in a dry, cool environment away from direct sunlight and extreme temperatures.
• Cable Care: Avoid bending or crimping the OBD II cable excessively. Always disconnect the cable by pulling the connector, not the wire.

8. Troubleshooting

9. Warranty and Support

For warranty information and technical support, please refer to the contact details provided by the manufacturer or retailer at the time of purchase. Keep your proof of purchase for any warranty claims.