Weird sound! probably from ABS.

Your ABS actuator has probably failed It's quite common It's running all the time now You open the door the pump starts pumping you touch the brakes the pump starts pumping long as your foot's on the brake it'll keep pumping You take your foot off the brake it'll pump 20 30 seconds until it stops pumping sometimes longer if there are no leaks from any wheels you look through the spokes you don't see any dripping so on and so forth You can probably count on looking for a break actuator they are $1,700 from the dealer walk in if you buy online they're about 1430 be by used 200 to $300 local online up to 750 used and claimed rebuilt . Anybody claiming they have a rebuilt generation to brake pump you want to ask a lot of questions see the box that it came in get a picture of the label something aftermarket has not been supporting this part at all people have had to have them imported from Asia to get them from cars like the Aauris or our cars equal there whatever and now that's even getting iffy. Good luck with your project buddy

 

Welcome to PriusChat!!

Best to locate a hybrid compatible OBD2 code scanner, then post the related codes in this thread for additional guidance.

FYI : you're moderated until you've posted 5 times.

 

A code scanner is more convenient, but if you don't already have one, it can still be best to get the codes quickly, which you wait for your code scanner to arrive.

For the lights you have on, you can get the codes this way;

Blink (a/k/a Flash) Codes – How to. | PriusChat

 

This is how you got codes out of your old Corolla in the late '70s through '80s always having to jump the TE and E1 connector I think or something like that and looking at the check engine light to flash all these codes as in the instructions here this goes back to long time ago.

 

Handy that it still works for at least a handful of the ECUs in a Gen 2, and even a few in Gen 3. Pretty much history by Gen 4, though, IIRC.

 

Still very cool to have