Highlights of CR319. Your Car Expert On the Go.

With this LAUNCH OBD2 scan tool CR319, you’ll solve most emission-related OBD2 issues versus paying for a mechanic to do the same work:
1.Works on most OBD2/EOBD/CAN cars made in and after 1996; fully compatible with protocols of KWP2000, ISO9141, J1850 VPW, and J1850 PWM.
2.Read and clear codes to quickly test every emission-related module status, and shut off that flashing check engine light bummer on your dashboard.
3.View freeze frame data to check the snapshot when an error occurs; troubleshoot the issue before the inspection.
4.View live data to monitor the real-time running components of the engine; detect underlying issues.
5.Make your smog test easy. Never feel anxious when you take the car in for an emission test.
6.Access to VIN, CID, and CVN to have easy identification of the vehicle and so track its historical records.
7.Have the built-in DTC LookUp to get the detailed Diagnostic Trouble Codes (DTCs) explanations and so save the time to search the code meanings online.
8.Multilingual Menu: English, Portuguese, Russian, Italian, Spanish, French and German.
Full Modes of OBDII Test
This LAUNCH code reader CR319 is fully-featured with all OBD2 test modes, being a very necessary scan tool for all car owners to tell the car issues in advance, to check if the car needs immediate attention, and to reduce cost and time spent on a mechanic:
1. Read fault codes associated with Check Engine Light on vehicle dashboards.
2. Clear fault codes so turn off Check Engine Light after servicing and repairing.
3. View dynamic Live Data to know how the car is performing.
4. Display I/M Readiness status to know if the car is ready for the emissions test.
5. Show Freeze Frame data to see what happened when the fault code was set.
6. O2 Sensor Test to check fuel efficiency and emission status.
7. EVAP Test for fuel tank system (carbon canister test).
8. Access to on-board diagnostic monitoring test results to determine if some specific components or the monitors are normal.
9. Retrieve vehicle information (VIN, CID, and CVN) to track car details and historical records.
10. Built-in DTC lookup library, read generic (P0, P2, P3, and U0) and manufacturer specific (P1, P3, and U1) codes; show the definition directly, save the search online.
Read & Erase DTCs
This code reader can pull diagnostic trouble codes that caused the Check Engine Light to turn on, and tell you the source of the fault. You may find a misfiring engine before it becomes a big problem. Once repairs are made, you can use it to clear the codes and so turn off the light.
I/M Readiness Check
Another handy feature in this scan tool is “I/M Readiness Test (for Inspection and Maintenance)”, the simple yet powerful self-check routines. It shows the emission-related sensors’ running status to tell whether your vehicle will pass the smog test or it’s time to have the maintenance.
O2 Sensor Test
If you find a drastic drop in fuel mileage then you can use this LAUNCH scan tool to see if the O2 sensor is defective. Replacing a defective O2 sensor can prevent possible damage to the catalytic converter. FYI, the catalytic converter would cost you thousands of bucks to replace.
Built-in DTC Library
When the code is displayed, the scan tool will show its description as well to help find the root cause of the malfunction. And if you don’t understand a specific error code, go through this OBD code reader’s DTC lookup library. No need to go looking it up online in a list or database.
Access to VIN, CID, CVN
You can get a wealth of car information including Vehicle Identification Number (VIN), CID and CVN by using this OBD2 scanner. It helps you to easily track the previous records of a vehicle, so you can get its historical data such as mileage to avoid buying a lemon car.
Live Data Stream
This scan tool will show you the live readout of what the PCM is receiving from the sensors while the car is running: RPM, fluid temperatures, fuel injection data, etc., which can aid diagnostics in all cases. For example, you can use it to diagnose why your car is losing gas mileage.
Freeze Frame Data
This OBD2 scanner can pull freeze frame data that capture what’s going on when an error code is triggered, covering important parameters such as engine RPM, vehicle speed, airflow, engine load, fuel pressure, etc. You’ll know exactly when the fault occurred and the affected sensors.
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| Region | Shipping Location | Estimated Delivery Time |
| United States | PERTH AMBOY, NJ | 3–5 business days |
| United Kingdom | Dunstable | 3–5 business days |
| European | Ginsheim-Gustavsburg, Frankfurt | 3–7 business days |
| Other Countries | HongKong | 7–15 business days |
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Important Notes
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Digital Service — No Physical Shipping Required
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Please Provide Your Serial Number After Purchase
After completing your order, email your device Serial Number (S/N) to:
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You can usually find the S/N on the back of your device or in the device settings.
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