ADVANCE NOTE: THIS IS NOT A DO IT YOURSELF JOB. THESE ARE NOT INSTRUCTIONS. REPLACING THE ABS ACTUATOR IS A JOB FOR A QUALIFIED TECHNICIAN WITH PROPER EQUIPMENT. I REPEAT: YOU CANNOT DO THIS AT HOME. Our 05 Prius with just under 60k miles started doing the brake â€œbarkâ€ sound on me not too long ago. There is a TSB out for the issue, but the job is only covered under the 3/36 warranty. Since we got the extended warranty here at PC, we figured this was an opportune time to use it. Part: 1769.07 Labor (5.5 hours): 407.00 Supplies (fluids): 25.30 Total: 2322.49 Our cost: 0 Extended warranty just paid for itself a couple of times overâ€¦ DH took it to the only other tech who is allowed to touch our car. And being DH, he also ended up insisting on doing most of the work. (which is a no-no, but heâ€™s kind of an exception since he used to be a â€˜yota hybrid tech himself and knows the right people.) Ok, first things first. The resistor pack gets replaced first, because itâ€™s under the dash and that type of interior work is best done with clean hands. The resistor pack is replaced along with the inverter because they are made and serviced as matched sets. If theyâ€™re replaced separately, they get less quiet. Next, some digging around under the hood. The inverter has to come out. So the whole wiper cowling setup has to come out. Next, clamping of coolant hoses and removal of various plugs inside and outside the inverter case to be able to pull it out. Like the inverter crash sensor Battery connections [yes, the safety plug is removed and the 12v is also disconnected.] MG connectors Other internal connectors Even more MG connectors disconnected Even more connectors And a shot of the whole thing minus cover And out goes the inverter! First look at the actuator- itâ€™s got the sticker with the big B on it. Engine electric water pump (big black thing in the center) Brake fluid line non-pressure hose disconnected in preparation for removal of the actuator Actuator now out, with bracket A better profile shot- you can see the solid iron vibration dampener that it bolts to as well Old actuator part- note that the accumulator tank end is rounded. New actuator part- here the accumulator tank end is flat. The early actuator replacements were with the same part. This one is now different. Lots of fun to put everything back together. Then the brake bleed and inverter bleed via the Toyota scantool- allow me to reiterate the only possible way to bleed the brakes on this car is with the Toyota scantool. DH always bleeds the inverter first because an inverter without coolant is bad news, and you might as well do it right when you add the coolant back. Then brakes- by this time, the car is angry and throwing codes left and right because there is air in the brake lines. So far no more brakes barking! It hasnâ€™t been very cold since the job was done, though, and the sound was associated with cold weather. The accumulator pump seems a little quieter, too.