My 2004 prius abs and brake light came on and the the brakes became very hard and constant beeeep noise, so i would shut the car off and pump the breaks and it would work fine so i decided to bleed the brake but still have the same problem only when i shut the car off the pumping the brake trick doesn't work

The ABS system is in need of immediate service. The hard pedal is the ABS/Hydraulics malfunctioning and beeping to let you know. Could be a sensor or module maybe a wiring/connection issue but have it serviced ASAP . A bad vacuum supply to the booster or booster diaphragm can also cause a hard pedal and any could light the warning light.

VSC ABS and ! lights plus red (!) - Toyota Prius Forum ...

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Jun 3, 2008 - 8 posts - ‎3 authors
If the accumulator fails, you will get a red brake warning light and the pump will now run continuosly until it burns out. ... hydraulic pressure to the brake system and "no"red warning lights. .... Fog Lights, PassGas, Toyota Prius General Discussion, 4, 10-13-2005 09:12 AM ... 11-13-2015 10:01 PM by Tim Lee.

Alarm with Brake Light, ABS, VSC and amber warning lights ' PriusChat

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Jul 26, 2005 - Later that same day - I started getting an alarm - as soon... ... Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care, ... Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by NorthStar, Jul 26, 2005. ... I am getting the red BRAKE LIGHT, the amber waming symbol, ABS, and ... VSC, ABS, (!) and emergency brake light on
Feb 5, 2010
Brake, Brake warning, ABS, VSC appear
Oct 5, 2008
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When I had that problem with the emergency light it was the sensor for emergency brake
The abs and brakes sounds like you are loosing pressure in the system

your problem is most likely the brake assist pump or controler

the abs valve assembly is under the drivers seat mounted on the frame if a gear went bad it will keep trying to move the valves it has a electrical plug on it and you will see all the brake lines go in and out of it

abs motor bad or sensor making it run

Check your brake pads first,as they have a wear warning clip on them.so if you hear a loud screaming noise.Then its quite possible they have worn causing ur warning lights to come on.And i would get anouther quote as that is quite dear for a pump replacement.If it is the pump.good luck pippall!!

Replace the HECU (ABS Hydraulic module).

It's both mechanical and electrical. See an expert to handle this.