LAUNCH CR319 OBDII Scanner User Manual

1. Introduction

The LAUNCH CR319 is a powerful and user-friendly OBDII/EOBD scanner designed for diagnosing engine-related issues in vehicles. It provides comprehensive OBDII functions, allowing users to read and clear diagnostic trouble codes (DTCs), view live data, check I/M readiness, and more. This manual will guide you through the setup, operation, and maintenance of your CR319 scanner.

Figure 1: LAUNCH CR319 OBDII Scanner

2. Getting Started & Setup

The LAUNCH CR319 is a plug-and-play device that requires no batteries or external applications. Simply connect it to your vehicle's OBD2 port.

2.1 Components Overview

Figure 2: CR319 Front and Back View

Figure 3: CR319 Product Dimensions and Controls

• Diagnostic Cable: Connects the scanner to the vehicle's OBD2 port.
• LCD Screen: Displays diagnostic information.
• Selection Buttons (Up/Down): Navigate through menus and options.
• OK Button: Confirms selections.
• ESC Button: Exits current menu or function.

2.2 Connection Steps

1. Locate the DLC (Data Link Connector): The 16-pin OBD2 port is usually located under the dashboard on the driver's side. Refer to your vehicle's manual if you cannot find it.


Figure 4: Locating the DLC Port

2. Connect the Scanner: Plug the CR319's diagnostic cable into the vehicle's OBD2 port.


Figure 5: Connecting the CR319

3. Turn on Ignition: Turn the vehicle's ignition to the 'ON' position (engine can be off or running, depending on the test). The scanner will power on automatically.

3. Operating Instructions

Once connected and powered on, the CR319 will display the main menu. Use the UP/DOWN buttons to navigate and the OK button to select.

Figure 6: Main Menu and Navigation

3.1 Full OBDII Functions

The CR319 supports all 10 modes of OBDII diagnostics:

Figure 7: Full OBDII Functions Overview

• Read Codes: Retrieves Diagnostic Trouble Codes (DTCs) from the vehicle's computer to identify the error location.
• Erase Codes: Clears DTCs and turns off the Malfunction Indicator Lamp (MIL), also known as the 'Check Engine' light.
• Live Data: Displays real-time information from the engine sensors, such as RPM, vehicle speed, coolant temperature, etc.


Figure 8: Live Data Stream Display

• I/M Readiness: Checks the status of emission-related systems to determine if they are operating correctly and ready for inspection/maintenance testing.
• Freeze Frame: Records a snapshot of vehicle conditions (parameters) at the moment an emission-related fault occurs, aiding in diagnosis.
• O2 Sensor Test: Allows retrieval and viewing of O2 sensor monitor test results for the most recently performed tests.
• On-Board Monitor Test: Views results of on-board diagnostic monitoring tests for specific components/systems. Useful after servicing or clearing control module memory.
• VIN Scan (Vehicle Information): Displays the Vehicle Identification Number (VIN), calibration identification, and calibration verification number (CVN) of the test vehicle.
• EVAP System (Mode $8): Allows initiation of a leak test for the evaporative emission control system.

3.2 DTC Lookup Library

The CR319 includes a built-in DTC lookup library, eliminating the need to search online for code definitions.

• From the Main Menu, select 'DTC Lookup'.
• Input the error code using the navigation buttons.
• The scanner will display the definition and explanation of the code.

Figure 9: DTC Lookup in Action

3.3 Language Selection

The CR319 supports multiple languages for user convenience.

• From the Main Menu, navigate to 'Tool Setup'.
• Select 'Languages'.
• Choose your preferred language from the list (English, French, Russian, Spanish, German, Italian, Portuguese).

Figure 10: Language Selection Menu

4. Vehicle Compatibility

The LAUNCH CR319 is compatible with most OBDII/CAN protocol compliant vehicles manufactured from 1996 onwards.

Figure 11: Detailed Vehicle Coverage

4.1 Supported Vehicle Types

• American Cars: Standard OBD2 Protocols from 2000 to present (e.g., Chrysler, Ford, GM, Jeep).
• European Cars: Standard OBD2 Protocols from 2003 to present (e.g., Alfa Romeo, SAAB, Acura, Opel, Audi, Seat, Peugeot, Renault, Bentley, Skoda, Daewoo, Benz, Daihatsu, Land Rover, BMW, Vauxhall, Citroen, Volvo, Fiat, VW, Ford, Jaguar).
• Japanese/Korean Cars: Standard OBD2 Protocols from 2006 to present (e.g., KIA, Isuzu, Honda, Mitsubishi, Hyundai, Dacia, Lexus, Mazda, Nissan, Subaru, Suzuki, Toyota).
• Chinese Cars: Standard OBD2 Protocols from 2009 to present.

Note: While compatible with most cars, regional differences in OBD2 protocol implementation or specific vehicle designs may lead to incompatibility with some models. The scanner supports 12V gasoline cars only; it does not support Diesel, 24V Heavy Duty, Hybrid, or Electric vehicles.

4.2 Supported OBDII 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)

5. Maintenance

5.1 Software Updates

The LAUNCH CR319 offers lifetime free software updates to ensure compatibility with new vehicle models and diagnostic protocols. Please visit the official LAUNCH website for instructions on how to download and install updates.

5.2 Cleaning and Storage

• Clean the device with a soft, damp cloth. Do not use abrasive cleaners or solvents.
• Store the device in a dry, cool environment, away from direct sunlight and extreme temperatures.
• Ensure the diagnostic cable is not kinked or damaged during storage.

6. Troubleshooting

6.1 Common Issues

• No Power: Ensure the scanner is correctly plugged into the vehicle's OBD2 port and the ignition is turned 'ON'. Check the vehicle's fuse for the OBD2 port if the issue persists.
• Communication Error: This message indicates the scanner cannot establish communication with the vehicle's ECU. Verify the vehicle is OBDII compliant (check year and type), ensure the connection is secure, and try on another compatible vehicle if possible.
• Screen Freezes: Disconnect the scanner from the vehicle, wait a few seconds, and reconnect. If the issue persists, ensure the software is up to date.

7. Specifications

8. Warranty & Support

The LAUNCH CR319 comes with a 2-year warranty and lifetime technical support. For any issues or questions, please contact LAUNCH customer service or visit their official website for assistance.

The product is CE certified, ensuring it meets European safety, health, and environmental protection requirements.

9. User Tips

• Always ensure the vehicle's ignition is in the 'ON' position when using the scanner to ensure proper power and communication.
• For accurate diagnostics, make sure your vehicle is compatible with the OBDII protocol and falls within the supported manufacturing years.
• Keep the software updated to benefit from the latest vehicle compatibility and diagnostic features.
• The device is designed to be portable and easy to carry, making it convenient for quick checks or on-the-go diagnostics.

10. Package Contents

Upon opening your LAUNCH CR319 package, you should find the following items:

• 1 * LAUNCH CR319 OBDII Scanner
• 1 * USB Cable (for updates)
• 1 * User Manual

Figure 12: Package Contents

11. Product Video

Watch this video for a quick overview and demonstration of the LAUNCH CR319 OBDII Scanner's features and usage.