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. Mise en route et configuration
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 Composantsview

Figure 2: CR319 Front and Back View

Figure 3: CR319 Product Dimensions and Controls
- Câble de diagnostic : Permet de connecter le scanner au port OBD2 du véhicule.
- Écran LCD : Affiche les informations de diagnostic.
- Selection Buttons (Up/Down): Naviguez dans les menus et les options.
- Bouton OK : Confirme les sélections.
- Bouton ÉCHAP : Quitte le menu ou la fonction en cours.
2.2 Étapes de connexion
- Localisez le connecteur 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.
- Connectez le scanner : Plug the CR319's diagnostic cable into the vehicle's OBD2 port.
- Mettre le contact : Mettez le contact du véhicule en position « ON » (moteur éteint ou en marche, selon le test). Le scanner s'allumera automatiquement.

Figure 4: Locating the DLC Port

Figure 5: Connecting the CR319
3. Mode d'emploi
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 Fonctions OBDII complètes
The CR319 supports all 10 modes of OBDII diagnostics:

Figure 7: Full OBDII Functions Overview
- Lire les codes : Retrieves Diagnostic Trouble Codes (DTCs) from the vehicle's computer to identify the error location.
- Effacer les codes : Efface les codes d'anomalie et éteint le témoin de dysfonctionnement Lamp (MIL), également connu sous le nom de voyant « Check Engine ».
- Données en direct: Displays real-time information from the engine sensors, such as RPM, vehicle speed, coolant temperature, etc.
- Préparation I/M : Checks the status of emission-related systems to determine if they are operating correctly and ready for inspection/maintenance testing.
- Arrêt sur image: Records a snapshot of vehicle conditions (parameters) at the moment an emission-related fault occurs, aiding in diagnosis.
- Test du capteur d'O2: Permet la récupération et viewing of O2 sensor monitor test results for the most recently performed tests.
- Test du moniteur embarqué : 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.
- Système EVAP (Mode $8) : Allows initiation of a leak test for the evaporative emission control system.

Figure 8: Live Data Stream Display
3.2 Bibliothèque de recherche DTC
The CR319 includes a built-in DTC lookup library, eliminating the need to search online for code definitions.
- Dans le menu principal, sélectionnez « Recherche de DTC ».
- 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 Sélection de la langue
The CR319 supports multiple languages for user convenience.
- Dans le menu principal, accédez à « Configuration des outils ».
- Select 'Languages'.
- Choose your preferred language from the list (English, French, Russian, Spanish, German, Italian, Portuguese).

Figure 10 : Menu de sélection de la langue
4. Compatibilité avec les véhicules
The LAUNCH CR319 is compatible with most OBDII/CAN protocol compliant vehicles manufactured from 1996 onwards.

Figure 11: Detailed Vehicle Coverage
4.1 Types de véhicules pris en charge
- Voitures américaines : Standard OBD2 Protocols from 2000 to present (e.g., Chrysler, Ford, GM, Jeep).
- Voitures européennes : 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).
- Voitures japonaises/coréennes : Protocoles OBD2 standard de 2006 à aujourd'hui (par exemple, KIA, Isuzu, Honda, Mitsubishi, Hyundai, Dacia, Lexus, Mazda, Nissan, Subaru, Suzuki, Toyota).
- Voitures chinoises : 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 (init rapide, 10.4 Kbaud)
- CAN ISO15765-4 (ID 11bit, 500 Kbaud)
- CAN ISO15765-4 (ID 29bit, 500 Kbaud)
- CAN ISO15765-4 (ID 11bit, 250 Kbaud)
- CAN ISO15765-4 (ID 29bit, 250 Kbaud)
5. Entretien
5.1 Mises à jour logicielles
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 Nettoyage et stockage
- Nettoyez l'appareil avec un chiffon doux et sec.amp chiffon. N'utilisez pas de nettoyants abrasifs ou de solvants.
- Conservez l'appareil dans un endroit sec et frais, à l'abri de la lumière directe du soleil et des températures extrêmes.
- Ensure the diagnostic cable is not kinked or damaged during storage.
6. Dépannage
6.1 Problèmes courants
- Pas d'alimentation : 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.
- Erreur de communication : 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.
- Blocages d'écran : Disconnect the scanner from the vehicle, wait a few seconds, and reconnect. If the issue persists, ensure the software is up to date.
7. Spécifications
| Fonctionnalité | Spécification |
|---|---|
| Afficher | 1.77 inch Color Display (TFT, 160x128 dpi) |
| Vol d'exploitationtage | 9V ~ 18V |
| Température de fonctionnement | -10°C à 50°C (14°F à 122°F) |
| Température de stockage | -20°C à 70°C (-4°F à 158°F) |
| Dimensions (L x l x H) | 118 mm × 68 mm × 22.3 mm (4.65 po × 2.68 po × 0.88 po) |
| Poids | <200g |
| Connexion | OBD2 Plug 16 Pin Cable |
| Mise à jour du logiciel | Mises à jour gratuites à vie |
| Certification | CE |
8. Garantie et assistance
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 d'assistance.
Ce produit est certifié CE, ce qui garantit sa conformité aux exigences européennes en matière de sécurité, de santé et de protection de l'environnement.
9. Conseils d'utilisation
- 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. Contenu du colis
Upon opening your LAUNCH CR319 package, you should find the following items:
- 1 * LAUNCH CR319 OBDII Scanner
- 1 * USB Cable (for updates)
- 1 * Manuel d'utilisation

Figure 12 : Contenu de l'emballage
11. Vidéo produit
Regardez cette vidéo pour un aperçu rapide.view and demonstration of the LAUNCH CR319 OBDII Scanner's features and usage.
Video: LAUNCH CR319 Product Demonstration





