Traction battery packs, motors, chargers, and other hv sources could cause serious injury or death if proper precautions are not taken while working on or around such high voltage direct current sources. The much larger traction battery actually starts up the engine when needed. In the case of the 2010 toyota prius, however, the voltage sent to the electric motor can be boosted up to 600 volts through a voltage converter source. Most likely you have a high voltage isolation fault. Hv p112 hybrid vehicle control part 1 direct current power. This quick reference guide describes the safing procedures for most toyota hybrid models.
However, ive just gone through a replacement of the multifunction display, and earlier had to replace the stereo system, both probably due to manufacturing defects. Hey guys, i have a 2004 prius with about 104,000 miles. P0aa6 toyota hybrid battery voltage system isolation fault. There is no warranty expressed nor implied and we are not liable for any of your past. High voltage isolation fault p0aa6 this code is set when the bms measures an isolation breakdown between the high voltage battery and the 12 volt system. The high voltage system is isolated from the low voltage system and the vehicles frame. Gen 1 prius battery failure, p3006 posted on december 9, 2008 april 17, 2015 by luscious garage this blog relates to p3006 battery faults. P0aa6 description the battery energy control module will diagnose its own systems and determine when a fault condition is present. Gen 1 prius battery failure, p3006 luscious garage. I have the original prius, which uses a 12 volt battery with a vent to the outside because it is located in the trunk. The hybrid system is used to provide both 12volt accessory power and. Basically heat is the enemy of the hybrid battery, and in addition to interior vehicle temperatures, the battery creates heat as it is charged and discharged.
Hybrid drive systems are complex, so the light can come on for a variety of reasons. Cardone reman remanufactured hybrid drive battery program is a perfect blend of quality and affordability. Hybrid system high voltage components air conditioning compressor service plug high voltage cables hybrid battery orange color traction battery power control unit and electric motor dcdc converter traction motor caution label take care when handling the hybrid system, as it contains. The readout gives me p0aa6 hybrid battery voltage system isolation fault. Hybrid vehicle safing procedure for nimh battery quick training guide qt0a before servicing the high voltage system of hybrid vehicles, a safing procedure must be performed. Failure analysis of some toyota prius battery packs and potential for recovery peter leijen and jonathan scott abstractthe toyota prius battery pack consists of 38 individual battery blades, each blade contains 6 nimh cells in series. General disclaimer hv high voltage dc direct current warning.
The fuse block is connected to the high voltage core. Ive experienced no problems with the hybrid system, and get gas mileage in the 40s, depending on conditions. Were it not for the vent, one could use an off the shelf battery which sells for less than. Definition of error code p0aa6 hybrid battery voltage system isolation fault. My 2011 prius is at about 110k and i have had no noticeable issues with stalling or any other aspect of the hybrid system. High voltage hybrid systems toyota prius nimh battery duration. P0aa6 is a hybrid battery voltage system isolation fault. The dlc diagnostic connector is located under the dash on the drivers side. Consumer states experience of difficulties with a low battery, resulting in the dashboard lightingup with red flashing warning lights. Toyota diagnostic trouble code retrieval aerohybrid power. Toyota prius nhw11 battery pack uses 38 prismatic plastic batteries. Failure analysis of some toyota prius battery packs and. Battery laboratory test results summary the cd and cs usable energy margins are defined as the difference between the battery usable energy values obtained from testing and the corresponding targets as defined in the battery test manual for plugin hybrid.
If the light comes on while driving, you should pull over safely and shut off the car for a few. Hybrid high voltage battery pack testing and analysis. The power management control ecu monitors the battery smart unit and detects insulation malfunctions in the high voltage. A wide variety of toyota prius battery options are available to you, such as 12v. Toyota prius questions prius only in neutral cargurus. That should be enough to start a prius just has to run the computers and power the breakers that connect the hv battery to the system plus a few seconds of pumps for hydraulic pressure etc. Many toyota prius owners are not aware of the hybrid battery fan service issue because the manufacturer has not listed this a serviceable item. Modelbased fault detection of a battery system in a. The battery pack of the second generation toyota prius consists of 28. Most automakers include a warning light to let the driver know of any problems with the hybrid system. The car will drive normally until you turn it off, then it wont go into ready. A breakdown in isolation can be caused by ruptured or leaking cells, high voltage cabling insulation that has rubbed off and come into contact with low voltage systems, condensation. Prius battery cell module hybrid toyota panasonic oem. Batteries in the hybrid car are normally assembled in series forming hazardous high voltage.
Were a shop in southwest ohio that offers hybrid battery services vs. Prius 12 v battery drain prius club toyota owners club. Check hybrid system light on my 20011 prius after battery. Check hybrid system light on my 20011 prius after battery dead, we charged it, 2011, trying to figure out it will come answered by a verified toyota mechanic we use cookies to give you the best possible experience on our website. I have a 2007 prius touring with 8500 miles i bought a few days ago. Our team of ima hybrid systems master technicians are dedicated to staying ahead of the latest technology.
Got duracell ultra platinum agm battery for 2011 toyota prius l4 1. Qt0a hybrid vehicle safing procedure for nimh battery. Fixed all the dash lights and made the battery fan stop running all the time. These systems are integrated with a power splitting planetary gear which provides various power flow configurations for different modes of operation. Enginer plugin hybrid electric vehicle addon system user manual for 19972003 prius enginer, inc. There are a couple of ways to get into system check mode.
Enginer plugin hybrid electric vehicle addon system user manual for generation 3 prius phev addon system user manual for generation 3 20102012 prius. Greentec auto is the industry leader in highperformance replacement ima hybrid battery packs. Diagnostics and system status is communicated from the battery energy control module to the vehicle control interface module through serial data. This code is set when the bms measures an isolation breakdown between the high voltage battery and the 12 volt system. Phev battery testing results us department of energy. Prius only in neutral my prius turns on but from park will only shift to neutral. If this dtc is output, perform troubleshooting fir this dtc first. Hybrid vehicle safing procedure for nimh battery quick training guide qt0a click the enter button to view the quick training guide. As long as it can connect the hv battery, thats what starts the car and feeds the 12v system, including recharging the 12v battery. What does the hybrid drive system malfunction warning. A brief technical description and summary of the high voltage hybrid system of the 2004 2009 toyota prius as well as a discussion of hybrid system operation. If there is any hv reference to ground low voltage, the car can detect it. We dont recommend anyone but a trained, certified technician service any high voltage systems. What the hybrid drive system malfunction warning light means.
This video briefly explains the diagnostic process for failure code p0aa6 and its. Hybrid battery junction block faulty battery smart unit faulty hv battery inverter with converter assembly. Page 1 of 22 toyota diagnostic trouble code retrieval prius hybrid nhw11 1. I reached out to bernie when my 2006 prius hybrid battery failed in december of 2015 the dreaded red triangle of death.
Temporary fixing check hybryd system error on 2014 lexus es 300h by disconnecting the 12 volt battery for 1 minute. Learn what does p0aa6 toyota hybrid battery voltage system isolation fault means, location and how to repair. This guide does not certify you to work on hybrid vehicle. How to check the 12v auxiliary battery health 20042009 toyota prius. A hybrid car battery is like any other batteryexcept that it is rechargeable. Check for dtcs and confirm that p0aa6 hybrid battery voltage system isolation fault is not output before doing removal or installation inside the battery.
At the time he had a battery from a junked prius with 108k on it. Battery test results include those from the static capacity test and the hybrid pulse power characterization hppc test, based on test procedures from the united states advanced battery consortium battery test manual for plugin hybrid electric vehicles at the time of testing. If excessive voltage is detected on the low voltage side, code p0aa6 will set. Current is xd, history if xd, and summary says icon e. The two most prolific hybrid manufacturers on the market, toyota and honda, each have battery packs with around 100 to 200 volts. If i remember correctly, prius uses 12v battery only for auxiliary stuff. Automatic dc circuit breakerto disconnect high voltage equipment operation in the event of a high.
Before servicing the high voltage system of hybrid vehicles, a safing procedure must be performed. Read expert information and diagnostics for fault code p0aa6. It indicates that the car thinks that theres a possibility of shock from the hv battery, because there was an unexpected voltage drop somewhere in the system. He had treated me well with a replacement 12v rear battery the year before. While we applaud the owner that works on their own vehicle, servicing a hybrid high voltage system can be dangerous and shouldnt be approached casually. The battery energy control module will diagnose its own systems and determine when a fault condition is present. This video briefly explains the diagnostic process for failure code p0aa6 and its related detail codes. Toyota hybrids constantly check high voltage isolation to confirm integrity of wire insulation, circuit insulation, and battery storage. My dealer prompted me to do so when my 2005 prius traction. Hybrid battery repair ultimate guide toyota prius 2nd gen. P0aa6 hybridev battery voltage system isolation lost. P0aa6 toyota hybrid battery voltage system isolation fault the power management control ecu monitors the battery smart unit and detects insulation malfunctions in the highvoltage. What is the lowest cca 12v battery a hybrid toyota prius.
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