2012 prius brake accumulator I bought one of the Mini VCI cables and grabbed the code through techstream after getting brake, ABS and traction control lights on the dash. but I found a part on eBay and the number is 44510-47050. Are the brakes different now (squishy) than when you started driving it five years ago? Making more vacuum pump humming noise than before? Prius brakes have always had a different feel and sound than traditional cars due to the integration of regen braking and hydraulic braking. I have a specific question with 2011 toyota prius brake accumulator/actuator Can i take 2012 prius five screen/back up cam and install it in 2011 prius that Jan 3, 2020 · Why did the new brake fluid or the brake bleeding process “fix the leaks in the valves in the actuator or accumulator”? This makes me realize there could be no leak in the valves and in fact the bellows inside the accumulator is failing which is allowing nitrogen to mix in with the brake fluid thus acting like air in the system and my pump The wife’s 2012 Prius popped off a small Christmas tree of warning lights the other day. Mar 18, 2023 · May be normal. This code is stored if a brake fluid, internal, or other leak is detected in the actuator due to improper sealing. Codes persist after clearing are C1246, 1256, C1364, 1365. BECOME A MEMBER TODAY! Join this channelhttps://www. I have read a bunch of stuff where it says that flushing the brake accumulator (part of the actuator/accumulator on Gen 2) is not a good idea and sometimes can cause its demise prematurely. These reports have indicated certain internal malfunctions of the Brake Booster Assembly. ABS Accumulator - Repair or Replace An ABS warning light may be the result of a failed ABS hydraulic pump, otherwise known There is no brake booster on a Prius. Related repairs may also be Jan 3, 2018 · 2008 Prius, 228k The accumulator has been makeing weird noises for a while. The brake booster/master cylinder ranged from $700-$1000. The consequences in my case was not noticeable for the first 4 months. Dec 25, 2020 · So I’m having very frequent actuator noise, even when not braking, which starts with the hissing/vacuum/ pump sealing sound, then the ol familiar actuation noise, and finish up with some creaking as I release the brake coming from underneath the car . The Op says it runs a "a second or so every 5 and a half minutes" while in Ready. I was on a 2. The work must have been pretty involved because once the replacement part had arrived, it still took them about 3 days to get the job done. i Aug 27, 2021 · Just replaced my brake booster and accumulator that were starting to fail on my 2013 and have my VCI techstream cable and software coming in the mail tonight. Nov 24, 2021 · C1256 accumulator low pressure and c1391 leak in accumulator which dealer is recommending replacing the abs actuator and accumulator (total $4,200). Jan 8, 2023 · I noticed my accumulator running every 15 seconds regardless of pushing the breaks or not and could hear a hissing vacuum leak so I decided to replace the Booster and Accumulator before any warning lights appeared. I first bought a Used Booster/Accumulator from a local junkyard. Brake warning light and DTC C1391. Since the Prius is a hybrid and runs with the gasoline engine off, the accumulator pump builds brake pressure by way of an electric motor. This non-domestic product has a manufacturer part number of 47070-47050 and an interchange part number of 545-52028. If you repeatedly pump the brake pedal, you will force the pump to run. I had the guys over at HybridPit in Buena Park figure this out for me. Last night I researched these symptoms and found the very well discussed topic of the "brake booster/accumulator/actuator" that has a tendency to go bad. They diagnosed: "internal failures within the brake booster assembly with master cylinder & brake booster pump assembly due to age and mileage (242k). ABS Accumulator. He seems very knowledgable about the issue. 2006-09. The only code showing up is C1391 - Abnormal leak in accumulator. Then the red brake light came on while I was driving and maintenance warning. Sep 29, 2024 · Today we are making an addendum to our Prius brake actuator replacement video: the brake bleeding procedure. Something about a diaphragm and loss of pressure, ultimately leading to front brake failure and 3 warning lights appear when it fails. Oct 23, 2020 · 2012 V wagon ABS pump making a noise every 10 seconds after shutting car off. My brake booster failed and was replaced under warranty extension at 7 years (11/2019) and 133k miles. Posted via the PriusChat mobile app. C1246 and/or C1256 is present C1246 and/or C1256 IS NOT present Approximately 97% of vehicles will require accumulator replacement. The brake booster/actuator flaw has been known for years. Genuine Toyota Part - 4707047060 (47070-47060, 0400220247). Discussion in 'Gen 3 Prius Technical Discussion' started by corystal, Mar 6, 2024. (Page 1 of 7) accumulator, and brake booster needed to be replaced. Fluid might be leaking from the Accumulator/ABS module. When it starts leaking faster than the pump can build pressure, you lose your power brakes. The Aug 14, 2014 · Once the car is turned off, after pressing in the brakes, I don't hear the noises from engine bay (clunk from brake accumulator), after few iterations, the pedal stiffens up. . Check and record DTCs. Oct 2, 2021 · Is there both a Brake Accumulator Pump and an ABS Accumulator pump? I have always thought there was one assembly with a master cylinder, accumulator, booster & pump. Oct 10, 2024 · I'm planning on replacing the booster & accumulator on my 2014 prius v. Brake. The solution for my 2010 Prius was a Master Cylinder replacement (however they also replaced the brake actuator but did not fix the issue). I know the brake stroke simulator/accumulator has been a thing in Gen 3, and the best I can figure is that by 2014 the internal leakage issue has been solved by Toyota, and I'm pretty sure the car I have isn't afflicted with this problem. The pump used to go on once in a while, mainly when I opened the car door to get in. Also used a mechanic’s stethoscope to see if I can hear any hissing sound (after the pump would cycle) on either the accumulator or booster, and it Yeah I'd say it's the brake accumulator. They’re a somewhat common failure on any vehicle due to age, the difference is how expensive the parts are with modern brake/ABS systems. May 14, 2023 · For those of you that had the C1391 or brake booster failure, did you go ahead and replace both the brake actuator and the brake accumulator? I know Toyota replaces both, but being out of pocket and the parts being ~$600each, being able to determine which needs to be replaced would be ideal. 23v and repeatsI’m not messing with pump at this point Toyota replaces both components. While driving you can't really hear it in the cabin. May 20, 2021 · A1: Toyota has received reports regarding the Brake Booster and Brake Booster Pump Assemblies on certain 2012 – 2014 model year Prius vehicles. Nov 7, 2017 · Gen 1 had the accumulator, actuator, and master-cylinder/booster separate (and the ECU inside the cabin). We have other cars, so downtime is not an issue, but we would like to fix this problem and keep her car on the road for several reasons. This action results in the motor having to run more often to maintain system Toyota has received reports regarding the Brake Booster and Brake Booster Pump Assemblies on certain 2012 – 2014 model year Prius V vehicles. Tried replacing the Brake Accumulator Actuator Booster Pump from a junker, same condition. Pump. Depressing and releasing the brake pedal will make the pump run, as will normal braking. The pump runs as needed to maintain hydraulic pressure in the brake accumulator. Toyota Feb 16, 2022 · I need the Brake booster assembly and the brake booster pump assembly replaced. Select air bleed with actuator replaced. With that said: your 2012 Prius may have warranty coverage for this issue. Oct 21, 2012 · Brake Accumulator Replacement. My brake pedal felt like a manual pedal, a little harder to push down and a longer throw to get braking power. (Page 1 of 6) CarComplaints. When your brakes work right, the pressure can hold up for hours if the brakes aren't being used. After checking abbs sensors and other quick fixes, took it into the dealer for a scan. The Brake Booster Accumulator Assembly (#47950-60010) is a pivotal part of the Brake Master Cylinder system in the Drive-Chassis category. Mar 28, 2021 · The Gen2 has a brake hydraulic actuator assembly. $2250 at my dealer. Also make sure your brake lines are tight or pretty snug, I didn’t have a few of mine snug and a lot of brake fluid came out when bleeding the brakes. The bottom thing (booster pump) is also the accumulator. After researching online I decided to buy an used ABS actuator-master cylinder P/N: 47270-47030 ( same as the one in my car) and replaced following Toyota repair manual. Jan 11, 2023 · What does the code C1391 mean? C1391 is the DTC (diagnostic trouble code) for accumulator leaks in the Prius. From an earlier post parts for a 2012 Prius v: 47070-12020 Booster Pump/Accumulator mcgeorge 696 (also available on ebay from salvage) 47050-47110 Master Cylinder Mcgeorge 1072 44785-02060 Gasket, Brake Booster mcgeorge $3. 5 second cycle is repeatable within a few seconds, it may well be a programmed algorithm. Jan 3, 2018 · Founded in 2003, PriusChat has been the go-to spot for Prius, hybrid, and EV discussion for over 10 years. When the car is turned on initially, it will begin cycling every 7 seconds or so, gradually increasing to about 20 second intervals over the course of about 10 minutes. It also has valves to let the ecu apply some of that fluid to each of the friction brakes, and sensors to monitor pressure in different parts of the system. C1252 - Hydro-boost motor malfunction & C1256 - Acumulator low pressure malfunction. 82-. PriusChat is the one of the largest privately-owned car forums left on the internet. Unfortunately, the Prius V booster and accumulator is much more expensive than a regular Prius. May 2, 2024 · Greetings; first time posting. Would that part still work? My brakes work perfectly fine and if the lights never came on, I wouldn't have suspected anything. Oct 1, 2024 · I have a 2010 prius w 130,000 m and a brake booster pump running every 10 sec. Aug 7, 2024 · Buy Flynsu 47070-47060 ABS Brake Booster Pump Assembly with Accumulator Replacement for 2010-2015 Toyota Prius, 2012-2018 RAV4, 2013 iQ: Power Brake Systems - Amazon. Gen 3 has the accumulator separate, but the actuator, master cylinder, booster, and ECU are combined into a single "brake booster assembly, with master cylinder", list price $2522 (though online dealers will sell discounted, $1652 here). That whirring noise you hear every few presses of the Brake Pedal is the Brake Accumulator charging/building up pressure to assist in Braking. No normal diagnostic code with a home OBD. Certain things like that, i just bit the bullet and had toyota do it today after thinking about putting car in invalid mode, how many bottles of dot 3 im gonna need, is my clear tube gonna fit, and Im gonna hv to buy a secondary charger so 12v battery doesnt die while doing the bleeding, lmao. Once disc bulge subsides, let me check that out too. Many hundreds of cars per Prius mechanic have seen the Brake Pump Accumulator fail and usually the Master Cylinder/ABS/Traction Control/Regen/Brake ECU (all one component) replaced as well. He said the order of events should be: 1) scan for the code; 2) check the 12 volt battery (the first thing they always do b/c it can cause symptoms people mistake for hybrid-related issues including the booster); 3) proceed with the repair accordingly. I bled my 2012 prius v front and rear brakes using invalid mode method 10-15k miles ago and I got no lights on my dash. No lights have come on. REPAIR COVERAGE FOR BRAKE BOOSTER AND BRAKE BOOSTER PUMP ASSEMBLIES ON CERTAIN 2010-2015 MY PRIUS AND CERTAIN 2010 AND 2012-2015 MY PRIUS PHV VEHICLES . Also the whirring sound the car normally makes after you turn it off, the whirring is constantly making the sound on and off at the same time intervals; whirs for half a second, stops for about 3 seconds, whirs again, thos goes on constantly. What kind of problems did it have during the alignment? Was the brake accumulator/actuator continuously activating as the car was being aligned? A failing accumulator/actuator will fail to hold brake assiting pressure correctly and continously activate to try and achieve sufficient brake assist pressure, even when the car is Nov 17, 2016 · Just took my 2010 Prius in with barking brakes and continuous pump whine and was handed an estimate for $4,629 to repair it: "Replace and bleed ABS brake actuator and pump (internal leak in brake pump leaking nitrogen into actuator. i think you nailed it. w/o plug-in Model. I have an Autel MaxiCOM MK808BT Service Tablet. Is this a common issue on the 2013? Through my research it seems only common on the earlier models. Joined: Jul 17, 2018 1,728 560 3 Location: Prmp945's write-up Brake Accumulator failure C1391 2012 Toyota Prius brake actuator failure. Ultimately I found a honest mechanic and he changed The ABS CONTROL MODULE AND ABS ACCUMULATOR ! my Prius v 2012 is now perfectly running. I barely have to tap the brakes and my car will stop. 5-3. Faste The Brake Booster Accumulator Assembly (#47950-60020) is a pivotal part of the Brake Master Cylinder system in the Drive-Chassis category. Here are some pictures i took today after removing the Brake Booster Assembly from my 2012 Toyota Prius C. Symptoms of an internal brake master/ABS pressure accumulator leak. But it sounds extremely similar to my Prius Brake Accumulator. Both scenarios will result in a soft Brake pedal and ineffective Brakes, causing a major safety concern. The accumulator is a tank for storing brake fluid under pressure. Sep 22, 2021 · I've learned not to push the brake pedal hard. The Brake Accumulator is prone to failure o. Just want to make sure I did it right lol. Aug 9, 2022 · A little background, 2010 Prius with 217,000 miles About 2 months ago the skid control, ABS & brake lights came on, I read the code C1391, and was able to reset temporarily until it would come back. Dec 5, 2003 · The brake master cylinder is the brains and the brake booster accumulator pump is the brawn( P/N 4707047060) . Jan 17, 2006 · Prius Plug-in > Gen 1 Prius Plug-in 2012-2015 > Brake actuator replacement Discussion in ' Gen 1 Prius Plug-in 2012-2015 ' started by 05silver , Aug 20, 2020 . w/o The 2012 Toyota Prius v has 101 NHTSA complaints for the service brakes at 45,536 miles average. Jul 1, 2018 · i also have a 2010 “parts car” that blew its HG long ago, that had a perfectly good actuator in it and a bad accumulator, as some 2010’s were known to have long story short, transplanted accumulator from 2010 to 2012, refilled brake fluid, attempted bleed procedure through Techstream, make it to ‘Simulate stroke procedure’ and Apr 23, 2019 · The accumulator pumps up and stores pressurized fluid, but almost all of the valves and passages through which it could be leaking down are located in the actuator, not the accumulator. com FREE DELIVERY possible on eligible purchases Apr 22, 2023 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright May 10, 2022 · It is very unlikely the brake booster system caused a failing high voltage battery. Our failing Brake Actuators Symptoms were the system pump running like clockwork every 30 to 45 seconds to keep the Accumulator pressurized. Thankfully nobody was hurt. 2012 Prius Plug-in Model: Plug-in Advanced. Jun 21, 2021 · 2012-2014 Model Year Prius c Coverage for Brake Booster and Brake Booster Pump Assemblies In our continuing efforts to ensure the best in customer satisfaction, Toyota is announcing a Customer Support Program to provide coverage for Brake Booster and Brake Booster Pump Assemblies on certain 2012-2014 Model Year Prius c Vehicles. )" The service guy said he would toss it up to management and see if Toyota would give me some relief. May 14, 2021 · Good day all, I have a 2014 Prius V Two. So my 2007 prius (163k miles) had some problems during an alignment. Shop Genuine Toyota parts now! Dec 13, 2024 · I brought my 2012 to a dealer for diagnosis since the brake, ABS and traction control lights were on. Helper steps on brakes and holds down pedal, open bleeder on RR caliper, repeat RL caliper. The Brake Booster Pump Assembly with Accumulator (#47070-47060) enhances the overall efficiency of your braking system, contributing significantly to the safety of your vehicle. Preventive brake flushes are a lot cheaper than replacing expensive Prius brake parts, as is evident from posts in this forum about thousands spent to replace failed hydraulic parts. I was originally told they would be willing to work on the vehicle but now I've received a phone call that they are not comfortable working with the Prius and are not Nov 26, 2020 · 2008 Toyota Prius. 4-Runner; Accumulator. Nov 23, 2016 · Just got the C1391 code for abnormal leak in accumulator on my 2013 Prius. Ensure optimal stopping power with our Brake Booster Accumulator Assembly, a crucial component of the brake system. Mine was every 15 seconds. Disconnect fluid reservoir level sensor, apply parking brake, turn car on (not all the way on if you know what I mean). Buy Toyota Prius ABS Accumulator. Bleeding procedure was straight forward. Brake actuator: 04008-26448; Pump: 04008-51148; I've found the parts online cheaper than the dealer and i am mechanically inclined. Oct 8, 2014 · The brake booster is the thing on top here, and the brake booster pump is the thing on the bottom, and people mix them up all the time. Brakes also feel mushy. My VIN didn't fall into one of the three ranges of VIN's that would qualify me for the recall of the Actuator/Accumulator. Replace the brake booster pump assembly (accumulator) AND the brake booster assembly. 2012 Prius v wagon (brake booster pump assembly/accumulator Sep 4, 2015 · Hello, I have a 2007 Prius with 165k miles that is frequently running the brake actuator pump (after roughly 3 stops) I did some testing with the Techstream software and found that the brake accumulator sensor normally sits at 3. Jun 11, 2008 · The Brake System Accumulator is located on the engine firewall, driver side about 18 inches from the top of the firewall. Reply reply May 5, 2016 · 2012 Prius Plug-in Model: Plug-in Base. 00. The fluid level fluctuates from half to full. The top thing (booster) is also the master cylinder, actuator, and ECU. Find many great new & used options and get the best deals for 10 11 Toyota Prius OEM ABS Brake Pump Accumulator Module 25k at the best online prices at eBay! Free shipping for many products! Jul 31, 2013 · I had this problem on my 2006 and ended up plugging in a new Brake Pump Actuator (harder that it sounds). ($2400 in parts alone is what's listed on this paper) I took to another shop for a second opinion. GX470. Pictures are of the actual item. Prius. Phase Model Model Year 1 Prius and Prius PHV Vehicles 2010 2 The 2012 Toyota Prius has 130 NHTSA complaints for the service brakes at 38,113 miles average. com: Car complaints, Brake accumulator pressure leak. 2013 Prius lit up like a Christmas tree last night. #12 Air Feb 14, 2016 · The brakes are entirely brake by wire except under totally failure of the accumulator when no hydraulic pressure is available OR under failure of the actuator/abs/ecu. Oct 15, 2013 · Accumulator and actuator are both names of real parts in the Prius brake system, which is endlessly confusing because the words are so similar and people are always mixing them up. This assembly's foremost role is to store hydraulic pressure, ensuring immediate fluid power when the brake pedal is pressed, contributing significantly to your car's stopping power. But then I still heard that whirring sound that goes every 5 to 10 seconds while driving, and sure enough one week later, the brake warning lights turned back on. TOYOTA Genuine FJ Cruiser Brake Booster Accumulator Assy 47950-60020(ebay) Feb 12, 2024 · I replaced the brake accumulator and I'm going through the Brake Bleed portion of the repair. If it really is 1-2 second duration and the 5. The brake booster alone is $1300-1500 brand new. Prius Prime; Prius Plug-In (2012-2015) New Posts Fits Prius Brake Master Cylinder - Repair or Replace A failed Brake master cylinder can leak Brake fluid externally, or it can develop an internal leak. It also could be from the brake fluid leak that's causing it. The prius is reading this as constant brake pressure (rear tail lights on and when trying to go to IG-ON no ready, it starts the car as if I'm pressing the brake). I’ve been quoted about $1500 to $1750 for parts. I'd like to tell you about my recent experience with this. While driving my Toyota Prius the braking system failed, this was on a large road and so posed a major danger to not only me, but the passengers in the vehicle and the vehicles around us. This part works closely with the master cylinder to deliver optimal stopping power. Mar 26, 2019 · There are a lot of other posts here at priuschat about the DIY proceedures involved with the brake booster brake accumulator repair I found by searching brake booster ! priuschat. And, that it is just that some people say ABS accumulator when they are troubleshooting the ABS systems and Brake accumulator when troubleshooting the breaking system. This range does not include taxes and fees, and does not factor in your unique location. 7V the decay was rapid as well 2011 @98k accumulator kicked on at same 3. No lights, no hard brakes, nothing. Fit 2010-2015 Toyota Prius. Apr 18, 2024 · First startup was this afternoon and I quickly realized that the brake accumulator is running much more frequently than my other Gen 3's. 2010 Prius, 2011 Prius, 2012 Priu Mar 18, 2020 · Hi everyone, I have a 2012 Toyota Prius V that was giving me a C1391/69; Accumulator Leak Malfunction. Cycled to a strong 3. I have already ordered the two assemblies: 1) Toyota Master Cylinder Brake Booster Assembly for 15” wheels (p/n 47050-47180) and 2) Brake Booster Pump Assembly with Accumulator (p/n 47070-47060). We hope you'll join our home to educated & critical discussion, falling outside of the fray of Internet trolls & unconstructive discussion. The ABS Accumulator is made by Toyota and accumulator to determine if the accumulator is affected. Had to continue driving it the following week, no issues for about 50 miles. So now, knowing that, when you read something like this: Jun 9, 2018 · About the brakes: you've put 70,000 miles on this car in five years. Labor costs are estimated between $254 and $320 while parts are typically priced around $683. In those worse case failure modes two normally open solenoids fail to their open position allowing your pedal pressure to directly create hydraulic force to the brakes. The pump is designed for direct replacement and comes with all the necessary items included in the package. Took the Prius to a local Toyota dealer and they repaired it free of charge. Sadly this unit failed by having an internal leak, causing the brake pump assembly to run too often until the pump motor burnt out, costing me about $2,560 to buy the 2 parts in total, i will install them myself. com at duckduckgo. Pump, Repair, Warning - OEM Toyota Part # 4795030010 (47950-30010) Toggle Navigation. Feb 26, 2015 · A Gen 3 has disc brakes all around, and disc brake calipers have a self-adjusting property: every time you use the brakes, the pistons extend as far as they have to, but they only return as far as the rubber seal springs back (roughly 0. Jul 17, 2018 · There is a recall procedure on the 2010 standard Prius on this site but not the v. Both parts are expensive enough that there's generally a strong incentive to try to pin down which one is at fault in a particular case before busting out the Yeah, I just got my 2013 Prius V accumulator replaced. I think it's a 15 or 17 mm hex on the end of the accumulator. 2012 Prius v wagon Model: Three. My 2012 Prius with 125k miles suffered a brake booster failure, so looking for some recommendations on diagnostic tools. That’s what you’re hearing. Well, the bleed didn't help so now the dealer says to replace the accumulator pump. Red brake light, traction control (car on springs), ABS light and the yellow exclamation in a circle. #5 bisco, Jul 29, 2023. The leaking accumulator cycled from 3. Feb 12, 2024 · The problem I'm running into is what I believe is too much pressure on the Stroke simulator as it is reading . Having to run every 7 or 8 seconds like that with nobody using the brakes is bad. … Apr 18, 2023 · 1252 1256 where the same codes I had. not The Brake Booster Pump Assembly with Accumulator (#47070-12020) enhances the overall efficiency of your braking system, contributing significantly to the safety of your vehicle. Tim Jones Senior Member. Oct 2, 2022 · Performing the replacement of the brake booster/actuator and accumulator per Toyota TSB. GX460. This assembly enhances the force applied to the brake pedal, thereby reducing the effort required by the driver. 2012 Prius Plug-in Model: Plug-in Base. Mar 6, 2019 · Toyota TSB T-SB-0024-19 Make: Toyota Number: T-SB-0024-19 Title: ABS Brake Warning Light On Date: 3/6/2019 Models: 2011-2015 Prius; 2012-2015 Prius c; 2012-2015 Prius v; Summary: Some 2011 - 2015 model year Prius and 2012 - 2015 model year Prius Plug-in Hybrid vehicles may exhibit a condition where the brake, ABS, and/or TRAC warning light(s) are on and/or a Check VSC message displays. Apr 7, 2012 · It is the normal sound of the brake hydraulic pump. I got the pump running every few seconds and brakes are failing intermittently. Sep 24, 2020 · I recently paid up for a 2013 Prius V 3 (I think it's a 3 , not certain) After hearing a pump run every 10 seconds or so, the brake pedal "chatter" internally while depressed, and having all my brake lights come on after the first 500 miles (less than, actually) I found that the brake accumulator having a bad internal seal is a common problem. w/o 215/45r17 tires. I just reached 200k last week and the accumulator/ booster is demonstrating all the signs of failure again! Oct 25, 2010 · I had the dealer flush the brake fluid previously at 30,000 miles for which I paid $130. Jul 29, 2017 · Warning lights came on for the (!) ABS, VSC. Dec 17, 2024 · Enhance the braking system of your 2010-2015 Toyota Prius with this genuine OEM ABS Brake Booster Pump Assembly with Accumulator. The braking still feels pretty much normal. I own a Gen 2 so I'm not as well versed in Gen 3 sounds. A long sustained beep when pressing brake pedal. It is like a puff air noise or something not to loud perhaps a bit like a seal. Please try not to harshly judge. Toyota Parts Superstore. BRAKE BOOSTER ACCUMULATOR; 4Runner. It is possible that corrosion is a part of the battery problem although 8 to 10 years life in a hot climate is pretty normal. Oct 16, 2019 · 2012 Prius v wagon 3 likes this. The accumulator is essentially an air reservoir that gives you power assist for the brakes. The issue is an air type noise which comes and goes when on the brakes at stoplights. 6 volts and doesn't budge over time. Have been reading a few other post a regarding brake bleeding and wanted to see if anyone had tips on the process as I know you have to bleed the stroke sensor and do the linear valve Aug 21, 2019 · > Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Main Forum > Need Advice- Replace ABS Accumulator or SELL CAR! Discussion in ' Gen 2 Prius Main Forum ' started by Nola_prius_06 , Aug 21, 2019 . However I would be motivated to set up Techstream if I knew it would help with the barking brakes. The fact it's running like that every few seconds is a sign it's bad. Shift to D, the red triangle of death arrives, goes out in park, neutral or reverse. The problem I'm running into is what I believe is too much pressure on the Stroke simulator as it is reading . Get the best deals on Additional ABS Parts for 2012 Toyota Prius when you shop the largest online 14-19 Toyota Prius C ABS Anti Lock Brake Pump Accumulator 47210 Toyota Prius Brake Booster Replacement Cost The average cost for a Toyota Prius Brake Booster Replacement is between $937 and $1,003. 23V then up to barely 3. Jul 5, 2019 · 2006 Power up: BRAKE, VSC, ABS are all lit; long beeping first open the door, when running, or pressing the brake. Feb 10, 2017 · When the brake accumulator went on my 2009it got to the point where it would turn on like every 10 or 15 seconds 2012 Prius Plug-in Model: Plug-in Base. 2010-15. Hello! New here. Jan 11, 2016 · If it's a leak, you should be able to decide between external or internal leak external, you'd be seeing brake fluid somewhere internal, it would be escaping the accumulator within one of the normal pathways and probably just recirculating to the reservoir. Smell coming from the brakes. # programming the brake booster May 12, 2021 · Thank you for visiting Auto Scholar with Mr B! Today we take a look at replacing the brake booster assembly and the accumulator pump assembly on this 2010 Ge Mar 2, 2022 · I went to look at a Lexus CT200h for the brake accumulator constantly running every 3 seconds for about 3 seconds long at a time. I got quoted $3500 from a hybrid specialty shop (which has been honest/trustworthy in the past) to replace the ABS accumulator and brake master pump. It has an electric pump to pressurize brake fluid to around 2000psi, an accumulator which is a special tank to store that high pressure fluid. 2012 Toyota PRIUS. This ABS pump off from 2012 Toyota Prius. but they always CTA for Toyota The Brake Booster Pump Assembly with Accumulator (#47070-60050), a crucial Drive-Chassis component in the Brake Master Cylinder system, is indispensable for efficient brake operations in your Toyota vehicle. it shows "C1391 - Abnormal Leak in Accumulator" ( posting an image) I also see I have brake fluid and inverter/coolant fluid below the MIN level ( this is taken after a 5min cool down since driving for 45min) Luckily, Issued popped up within few miles of home. Mine started cycling on and off a number of months ago and it got more and more frequent. Jul 29, 2011 · Brake Light ON; Skid Light ON; Used obdlink mx+ with a free add-on for diagnostics. The Brake Booster Pump Assembly with Accumulator (#47070-47090) enhances the overall efficiency of your braking system, contributing significantly to the safety of your vehicle. And it worked pretty fine when it was fixed, with no brake warning lights staying on. There is a technical service bulletin that says to try bleeding the brakes first. From what I understand, upon depressing the brake pedal, the Skid Control ECU (SC ECU) uses input from the master cylinder and brake pedal stroke sensor to calculate the desired target hydraulic line pressure (THLP) for each wheel. Catching that shows you're really paying attention. So, as the title states, I've had the brake booster/Accumulator fail once March of 2021at 72,500 miles. I figured I could put the vehicle in invalid mode, then do one rear brake caliper at a time. 3 mm), so as long as the calipers are working properly that gap remains constant throughout the wear life of May 27, 2019 · The part of the brake accumulator was 4455-47091. The Brake Booster is electronic and known as the Brake Accumulator. I plan to change the brake booster/actuator as my first step, and I am trying to use BAM AUTO for the part(s), but only if their OEC claim means genuine Toyota parts. but no red brake light coming on. 23v. Nov 18, 2021 · 2013 Prius V Three 139,500 miles I'm experiencing a major brake issue on my 2013 Prius V Three. I plan on replacing my pads,rotors,calipers, and bleeding brakes all around again this summer, so it would be good to know for then. Mar 13, 2008 · This is the brake pressure accumulator pump. Dec 14, 2024 · 2012 Prius. Now if you hear this same buzzing constantly, while not using the brakes, then you probably have a leaky brake accumulator. Checked for sensors/ leaks / oil/ brake fluid… everything else that could cause abs problems that’s minor. Jul 2, 2007 · The dealer diagnosed it correctly as the brake accumulator pump. The DTC's commonly associated with this repair i Nov 19, 2019 · 2012 Prius Plug-in Model: 2016 TOYOTA PRIUS Power Brake Booster Electric 47070-47070 OEM One of my other gen 2 prius accumulator failed and I put the part on Sep 8, 2016 · "Chris fix brake flush" "Chris fix one person brake bleeder") I have watched the Nutz about Bolts prius brake flush video and am wondering if I can just use the above instead of a vacuum device as most people don't have whatever equipment that they used. Jun 11, 2022 · It's a 2012 Prius Two with about 130k miles on it. youtube. com/channel/UCC3AE_32n7sGdd-wM4f2I0Q/joinHow to change the brake actuator on a Gen 3 Prius. ODO 172k miles. Dec 29, 2024 · I've rolled 240K on the 2012 Prius V. Sep 19, 2018 · If the brake booster pump was faulty and has been replaced, the problem might now be only a blown fuse, for example. My take is that it is the accumulator and that the ABS has to be The familiar whirring sound when I open the car door is becoming much more frequent on my 2010 Prius III. Sep 18, 2018 · In our continuing efforts to ensure the best in customer satisfaction, Toyota is announcing a Customer Support Program to provide coverage for brake booster and brake booster pump assemblies on certain 2010 model year Prius and Prius PHV vehicles, certain 2011-2015 model year Prius vehicles and certain 2012-2015 model year Prius PHV vehicles. 78v and slowly decayed to 3. It will not do it on every application, but only when needed to maintain pressure. Nov 27, 2013 · Getting by with Android apps and a bluetooth dongle thus far. I made several posts regarding this. Aug 11, 2020 · They said the Inverter cooling pump needs replaced and the brake accumulator. org - the 5 pages of posts might inspire you or the opposite and it's not all DIY recommendations as you'll hopefully understand as your read, if you Sep 16, 2021 · That's the sound of your brake accumulator pump having to repeatedly run because the brake pressure won't hold, which is what the C1391 already was telling you. Nov 7, 2023 · Oh, and one more thing that may be relevant: During the brake bleeding process (first it has me bleed the Front Left and Front Right with the ABS relays removed, then it has me press the brake pedal 30 times in 30 seconds while it activates certain things, then wait 2 minutes, then reinstall relays and bleed the rears, and lastly has me open the Front left one more time as it activates Jul 21, 2016 · The symptoms were that the red "BRAKE" light and orange "ABS" lights were both on, plus there was a slow pulsing in the brake pedal, much slower than the pulsing that a warped rotor might provide. I don't believe it is connected to a brake motor. Fits 4Runner, FJ Cruiser 2005-09. If I do a thorough brake bleeding on the rear brakes the symptoms disappear for awhile, I still get accumulator cycling at a higher rate than normal usually. Oct 4, 2023 · 2010-2015 TOYOTA PRIUS OEM ABS BRAKE BOOSTER PUMP UNIT. And if this doesn't work, replace the accumulator pump. Bad brake booster/ accumulator. Keep fluid topped off. Together they point to either an ABS sensor failure, or the known issue/recall of the brake booster / accumulator / pump. Mar 21, 2013 · remember to put the red brake line in after you put in the abs Accumulator, I didn’t and had to take out the brake booster like a dumb nice person. The TSB also says there is no impact on brake performance. The C1391 code on your 2010 Prius indicates an abnormal leak in the brake accumulator pressure, often related to the brake booster and master cylinder assembly. The vehicle was repaired. The pressurized fluid from the accumulator just whooshes in as needed to reach the target pressure, even if that takes extra to compress some gas. Makes same noise while driving. Find many great new & used options and get the best deals for 2010-2011 Toyota Prius Accumulator Anti Lock Brake Booster Pump 47070-47050 ABS at the best online prices at eBay! Free shipping for many products! Oct 22, 2017 · The dealership wanted $2000 to replace my ABS accumulator brake pump assembly. The big reason is that this car allows my wife to use the HOV lane to get to work, and she parks at work in a small parking garage that fits this car perfectly. BRAKE BOOSTER ACCUMULATOR; FJ Cruiser. I have owned this car for 11 years and had no problems until now. My 2011 prius (140k miles) just had 3 lights come on - brake light, ABS light, traction light, with weak/squishy brakes and loss of regenerative braking. A whole christmas tree of lights lit up on the dashboard when failure happened. Gen 2's and Gen 3's. Let our technician diagnose and repair your Toyota w/ OEM parts to ensure your safety. Traction control, brake, and abs warning lights all came on at once. Oct 29, 2023 · It's the Foxwell NT630Plus. I still have no warning lights. 2016-24, W/HYDRAULIC TYPE BRAKE BOOSTER. 84 without any pressure applied to the brake pedal. The buzzing is the brake accumulator pump. #4 Elektroingenieur , Sep 21, 2018 ChapmanF Senior Member Mar 26, 2008 · The way Prius brakes work, though, some amount of gas in the system might not be too noticeable most of the time. Does anyone know roughly how many hours it takes to replace these two? I’m trying to compare quotes and also want to make sure I’m being charged properly. From other posts in this forum, I'm pretty sure it is the brake accumulator pump adding pressure to the brake system. 60 Apr 21, 2019 · Failing usually means pump operations frequently. Please help as I don't need my brakes failing. Overall, I am very satisfied with the DOH recall. 82 without any pressure applied to the brake pedal. But then I started to experience a drop in gas mileage due to the brakes that would slightly engage (without applying the brakes) in the front right caliper. 100% normal. False there is a Brake Booster. Yes, recall job was done about a year agoAlso noticed I'm not hearing the normal hissing sound coming from brake pedal. ABS failure. NOT Affected Bleed the brake system. In these reports, customers have noted various brake system related warning lamps are c Mar 22, 2023 · If it does turn out to be that, I just got done replacing my brake booster assembly as well as the brake accumulator on my 2013V with 182k. Background Toyota has received reports indicating various brake system related warning lamps illuminate due to internal malfunctions. The buzzing sound you hear is likely the brake actuator pump maintaining hydraulic pressure. You just need to discharge the accumulator to the reservoir via techstream to bleed all pressure from the brake system prior to loosening. Sep 22, 2021 · I just had a nice "Prius chat" with Ken at Dynasty Automotive. In my Gen 1 (caution: could be different!) C1256 is an accumulator low pressure Mar 22, 2015 · Fortunately, the accumulator on a Gen 2 can be replaced independently from the actuator assembly just by unthreading it from the valve body block. This a known Oct 23, 2020 · 2012 Prius V , abs pump went out about 2 years ago and been driving around without . Leather, Nav system, Bose system. Background: Oct 10, 2017 · 2012 Toyota Prius 4, 187,200 miles. May 8, 2020 · What happens in our Prius is that over time, tiny leaks in the accumulator cause pressure in the tank to drop. Ships from Toyota Parts Overstock, Lakeland FL Jan 12, 2024 · abs pump brake booster motor accumulator fits: 2012-2017 prius v 2011-2017 ct200h 2015-2017 nx300h 2012-2018 rav4 2010-2012 hs250h please match part number to confirm fitment part id: 47070-12020, 47070-47060, 4707012020, 4707047060 (have questions?you can reach us at 833-397-2787). Apr 15, 2018 · Started with the accumulator pump running continuously eventually started making some weird barking noises, followed by the ABS VSC warning lights have never received the red triangle however. 5-hour drive home and at some point my ABS, BRAKE, & TRACTION CONTROL lights went on. qniq okogtn wkyl tbs oeybb aygime qsdk pkytzu cqu hqfbemfv