Topdon — Phoenix Nano User Manual

d. Read Freeze Frame This function can read the DTCs in the ECU memory, helping quickly identify the cause of the vehicle breakdown. e. Actuation Test This option is used to access vehicle-specific subsystem and component tests. Available tests vary by vehicle manufacturer, year, and model. During the actuation test, the tablet sends commands to the Electronic Control Unit (ECU) to activate actuators, then assesses system or component integrity by reading ECU data or monitoring actuator operation. This may involve tasks like switching an injector between different operating states for evaluation. The following screen will appear:

Simply follow the on-screen instructions and make appropriate selections to complete the test. "Completed" will be displayed after each successful operation. f. Special Functions This option offers coding, reset, relearn, and more service functions to help vehicles get back to functional status 20