How can you see abs brake pump actuator is working?

To check if the ABS brake pump actuator is working, you can listen for the sound of the pump running when the ABS system is activated, especially during hard braking on slippery surfaces. Additionally, you can observe the ABS warning light on the dashboard; if it illuminates during braking and then turns off after the vehicle stabilizes, it's a good sign the actuator is functioning. A diagnostic scan tool can also be used to read ABS system codes, which can indicate if the actuator is operational. Lastly, performing a brake test on a wet surface can reveal if the ABS is engaging properly, as it should prevent wheel lock-up.