Actron scan tools are valuable for diagnosing car problems. While OBD II systems are generally standardized, using an Actron scan tool effectively requires understanding specific scan steps. This guide outlines how to use an Actron scan tool for OBD II diagnostics.
Understanding OBD II and Actron Scan Tools
OBD II (On-Board Diagnostics II) is a standardized system in most vehicles manufactured after 1996. It allows technicians and car owners to access diagnostic trouble codes (DTCs) stored in the vehicle’s computer, indicating potential issues. Actron offers various scan tools, from basic code readers like the CP9087 to more advanced models with live data capabilities.
Actron Scan Tool Scan Steps: A General Procedure
While specific steps may vary depending on the Actron scan tool model, the general procedure is as follows:
1. Prepare the Vehicle and Scan Tool
- Ensure the vehicle is turned off.
- Locate the OBD II port. This 16-pin connector is usually under the dashboard on the driver’s side.
- Connect the Actron scan tool to the OBD II port.
- Turn the ignition key to the “on” position without starting the engine. This powers up the scan tool and allows it to communicate with the vehicle’s computer.
2. Power Up the Scan Tool
- Most Actron scan tools will automatically power on after connecting to the OBD-II port and turning on the ignition.
3. Read Diagnostic Trouble Codes (DTCs)
- Select the “Read Codes” function. The wording may vary slightly based on the specific model.
- The scan tool will display any stored DTCs. Each code corresponds to a specific problem. Write down these codes.
4. Interpret the Codes
- Use a reliable resource to look up the meaning of each DTC. Actron provides code definitions in their user manuals or online resources. You can also find comprehensive OBD II code databases online.
5. Clear Diagnostic Trouble Codes
- After diagnosing and repairing the problem, use the scan tool to clear the DTCs. This resets the check engine light and allows you to confirm the fix was successful. This function is usually labeled “Erase Codes” or “Clear Codes”.
6. Advanced Functions (Model Dependent)
- Some Actron scan tools offer advanced features such as:
- Live Data: View real-time sensor readings to monitor vehicle performance.
- Freeze Frame Data: Capture a snapshot of sensor data at the moment a DTC was set.
- Mode 6 Testing: Access more detailed diagnostic information.
Choosing the Right Actron Scan Tool
- Actron offers a range of scan tools to suit different needs and budgets.
- Code readers like the CP9087 are affordable options for basic code reading and erasing.
- More advanced scan tools offer live data, freeze frame data, and other features for more in-depth diagnostics.
Conclusion
Using an Actron scan tool is a crucial step in diagnosing car problems. By following these scan steps and understanding the information provided by the tool, you can identify and fix issues more efficiently. Remember to consult your Actron scan tool’s user manual for model-specific instructions and safety precautions.
