1. Introduzione
The LAUNCH CR319 is a handheld On-Board Diagnostics II (OBD2) code reader designed to assist in diagnosing vehicle engine issues. It provides access to various diagnostic functions to help users identify and clear trouble codes, monitor vehicle performance data, and check emission readiness status. This manual provides detailed instructions for the proper use and maintenance of your CR319 device.
2. Produttu Finituview
2.1 Funzioni chjave
- Funzioni OBD2 cumplete: Supports all 10 OBD2 test modes.
- Biblioteca di ricerca DTC: Built-in database with over 3000 code definitions.
- Support multilingue: Available in English, Portuguese, Russian, Italian, Spanish, French, and German.
- Plug and Play: No batteries or charger required; powered directly from the vehicle's OBD2 port.
- Disegnu compactu: Facile à manighjà è almacenà.
2.2 Cumpunenti di u dispusitivu

The image above illustrates the main components of the LAUNCH CR319 OBD2 Scanner. Key parts include the Diagnostic Cable (1) for connecting to the vehicle, the LCD Screen (2) for displaying information, Selection Buttons (3) for navigation, the Down Button (4), the OK Button (5) for confirmation, the ESC Button (6) to return to the previous screen, and the Plug-and-Play Interface (7) which is the OBD2 connector.
3. Setup
- Truvate u portu OBD2: The OBD2 port is typically located under the dashboard on the driver's side of the vehicle. Refer to your vehicle's owner's manual if you cannot locate it.
- Cunnette u scanner: Plug the CR319's diagnostic cable connector firmly into the vehicle's OBD2 port. The device will power on automatically.
- Cumincià u veiculu: Turn the vehicle's ignition to the 'ON' position (engine off) or start the engine, depending on the diagnostic function you intend to perform.
4. Operating Instructions
After connecting the CR319 to your vehicle, the main menu will appear. Use the Up/Down selection buttons to navigate through the options and the OK button to confirm a selection. The ESC button returns to the previous screen.
4.1 Leghje i Codici

This function retrieves Diagnostic Trouble Codes (DTCs) from the vehicle's computer. These codes indicate specific issues detected by the vehicle's self-diagnostic system.
- Da u menu principale, selezziunate 'Diagnose'.
- Selezziunà 'Read Codes'.
- The scanner will display any stored, pending, or permanent codes along with their descriptions.
4.2 Clear Codes
This function erases DTCs from the vehicle's computer and turns off the Check Engine Light (MIL). Ensure any underlying issues are resolved before clearing codes, as they may reappear.
- Da u menu principale, selezziunate 'Diagnose'.
- Selezziunà 'Erase Codes'.
- Cunfirmate l'azione quandu vi hè dumandatu. A luce di cuntrollu di u mutore si deve spegne.
4.3 Disposizione I / M
This function checks the status of the vehicle's emission-related monitoring systems to determine if they are ready for an emissions test.
- Da u menu principale, selezziunate 'Diagnose'.
- Selezziunà 'I/M Readiness'.
- The screen will display the status of various monitors (e.g., Misfire Monitor, Fuel System Monitor). 'OK' or 'Complete' indicates the monitor has run and passed; 'INC' or 'Incomplete' means the monitor has not yet run or completed its diagnostic cycle.
4.4 Data Stream (Live Data)

This function displays real-time operational data from the vehicle's engine control unit (ECU). This data can include engine RPM, vehicle speed, oxygen sensor readings, coolant temperature, and more.
- Da u menu principale, selezziunate 'Diagnose'.
- Selezziunà 'Data Stream'.
- Use the Up/Down buttons to scroll through the various data parameters.
4.5 Freeze Frame
When an emission-related fault occurs, the vehicle's computer records a snapshot of operating conditions at the time of the fault. This data is called Freeze Frame data.
- Da u menu principale, selezziunate 'Diagnose'.
- Selezziunà 'Freeze Frame'.
- Review the recorded parameters to understand the conditions under which the fault occurred.
4.6 Ricerca DTC

This feature allows you to manually enter a Diagnostic Trouble Code and view its definition from the scanner's internal database.
- Da u menu principale, selezziunate 'DTC Lookup'.
- Use the navigation buttons to input the desired DTC.
- Press 'OK' à view the code definition.
4.7 Other OBD2 Functions
The CR319 also supports the following OBD2 functions, accessible through the 'Diagnose' menu:
- Test di sensor O2: Retrieves oxygen sensor monitor test results for the most recently completed tests.
- EVAP System Test (Mode 8): Inizia una prova di u Sistema di Cuntrollu di l'Emissioni Evaporative.
- Test di u Monitor di Bordu (Modu 6): Recupera i risultati di e prove per i cumpunenti è i sistemi di trasmissione ligati à l'emissioni chì ùn sò micca monitorati continuamente.
- Infurmazione di u Vittura: Displays the vehicle identification number (VIN), calibration ID (CALID), and calibration verification number (CVN).
5. Cumpatibilità

The LAUNCH CR319 OBD2 Scanner is compatible with most American, European, and Asian vehicles manufactured from 1996 and newer that are OBDII-compliant. It supports all standard OBDII protocols, including KWP2000, ISO9141, J1850 VPW, J1850 PWM, and CAN (Controller Area Network).
5.1 Supported Vehicles
- 12V Gasoline cars.
- Vehicles compliant with OBDII standards (1996 US-based, 2000 EU-based, and newer Asian cars).
5.2 Not Supported Vehicles
- Diesel cars.
- 24V Heavy duty vehicles.
- Hybrid vehicles.
- Electric vehicles.
6. Specificazioni
| Feature | Specificazione |
|---|---|
| Mudellu | CR319 |
| Mostra | LCD di culore |
| Voltage | 9-18V (via u portu OBD2) |
| Protocolli supportati | KWP2000, ISO9141, J1850 VPW, J1850 PWM, CAN |
| Dimensioni (L x W x H) | 1.5 x 6 x 10.8 inch |
| Pesu | 7.4 once |
| Temperature di funziunamentu | 0 ° C à 50 ° C (32 ° F à 122 ° F) |
| Temperature di almacenamiento | -20 °C à 70 °C (-4 °F à 158 °F) |
| Lingue supportate | English, Portuguese, Russian, Italian, Spanish, French, German |
7. Risoluzione di prublemi
7.1 U dispusitivu ùn s'accende micca
- Assicuratevi chì u cavu di diagnosticu sia cunnessu currettamente à u portu OBD2 di u veiculu.
- Verify the vehicle's ignition is in the 'ON' position or the engine is running.
- Check the vehicle's fuse for the OBD2 port (consult your vehicle's owner's manual).
7.2 Errore di cumunicazione cù u veiculu
- Confirm the vehicle is OBDII-compliant (generally 1996 and newer for gasoline vehicles).
- Ensure the diagnostic cable is properly connected.
- Turn off the ignition, wait 10 seconds, then turn it back to 'ON' and try again.
- If possible, test the scanner on another compatible vehicle to rule out a device malfunction.
7.3 Codes Cannot Be Cleared
- Assicuratevi chì l'accensione di u veiculu sia in a pusizione "ON" (u mutore hè spento).
- If the underlying fault that triggered the code is still present, the code may not clear or will reappear immediately. Address the vehicle's issue first.
8. Mantenimentu
- Pulizia: Aduprate un pannu dolce è asciuttu per pulisce l'apparechju. Evitate detergenti abrasivi o solventi.
- Conservazione: Conservate u scanner in un ambiente pulitu è asciuttu, luntanu da temperature estreme è da a luce diretta di u sole.
- Cura di u cable: Do not pull the cable forcefully or bend it sharply. Inspect the cable for damage before each use.
9. Garanzia è Support
For warranty information, technical support, or service inquiries, please contact LAUNCH customer support. Refer to the product packaging or the official LAUNCH websitu per i dettagli di cuntattu più recenti.





