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ITDEENBGES

Live Data and actuator tests on Daihatsu ECUs

Live values ("Live Data") and actuator tests tell you whether a component is actually working, when the DTC alone is not enough to pin down the fault. Handy for confirming an implausible sensor reading or for driving an actuator directly and hearing/seeing it operate.

Procedure

1. Open the diagnostic session with the ECU you want to look at from the main screen.
2. On the basic diagnostics screen press the "Live Data" button: the software shows every parameter the selected ECU makes available.
3. Read the values sampled by the ECU and compare them against the actual state of the vehicle (engine off/running, pedal released/pressed, lights on, etc.) to spot implausible readings.
4. To test a component, go back to the basic diagnostics screen and press the "Actuator" button: the list of actuator tests available for that ECU appears.
5. Select the test you want and start it, then check on the vehicle itself that the actuator responds (noise, movement, the lamp or load being switched).
6. If an actuator does not respond to the command, the fault is downstream of the ECU (wiring, connector or component); if it does respond, focus the search on the command signal or on the sensor that drives it.
7. Close the actuator test before unplugging the AVDI and read the DTCs again with "Read DTCs", because the tests can set temporary codes that need clearing.

Reference screenshots