erase codes

Since you have P0AA6, hybrid related problem. You are in NY and "should" be covered under the CARB warranty. I woul call the service manager at the dealership and inquire about this. If this is a covered repair, they should not have charged you and fix your problem.

 

the contact is in the warranty manual, or you can try the toyota owners website. the battery and inverter are warranted of 10/150, if the car was originally registered in a carb state.

 

I really don't know what CARB covers in NY, in CA it covers just about anything Hybrid related. NY adopted the CARB standards but doesn't cover everything CA covers. You should ask the dealer just to make sure.

 

pretty sure it's all the hybrid components, of which, the transaxle is not one. if there's a short in the tranny, your best to replace it with a junk yard dog.

 

The 611 info code points to electric compressor and AC inverter.

 

Todd is just so helpful.

Bisco, there was a TSB issued for the transaxle with detail code 526 and 613.....a hybrid related repair

 

thanks jc, electric compressor, is that for air conditioning? look for a used one. AC inverter, part of hybrid warranty?

 

I've ignored problems as an action of resolution.

Hakuna Matata is only a lasting applicable philosophy if you happen to be animated.

That being said. I'd disconnect the battery, and then plan a long road trip. Who knows what adventure awaits?

 

A scan code or DTC can lead a mechanic to need to walk through a flow chart where each step/sub-test is designed to rule out the most probable cause before you go on to the next step/test.

Think of it as "a sensor tells me something is wrong and the symptom" but not the cause or causes.

On another car I am familiar with, a single code can have twelve 8.5" by 11" pages worth of diagnostic steps and explanations of how to do each of the sub-tests and what the results could mean in terms of what could be the cause.

Clearing the codes does nothing to fix the underlying problem.

 

Not wanting to be nasty here but please answer the question of how old the battery IS.

Like anything electrical, batteries can be intermittent AND just a simple load test will not always pinpoint one that is getting weak.

If your 12 V battery is over 4 years old, the prudent thing to do is get a new one.......before you spend money on anything else.
If you had a meter with you, you could check the battery voltage at the time it fails.

 

Your car has a high voltage ground fault and the most likely place is the air conditioner compressor. You have already discovered the workaround is to disconnect the 12V battery to momentarily clear the fault code. You can continue to do this indefinitely.

The downside of accepting the car in its current condition is that your car has a potential safety hazard because one side of the high voltage is leaking to the body ground. This is the same concept as your household AC wiring which has ground fault circuit interruption devices which will trigger if the device detects that an appliance has a ground fault.

Since the AC compressor is the likely fault item, this would not be covered under the standard warranty. A simple way to prove or disprove the compressor would be to disconnect the high voltage cable from the inverter that leads to the compressor. If the fault code goes away and does not return, that would be proof the compressor is faulty.

One reason why the compressor would suffer a ground fault is if the wrong air conditioner lubricating oil is used. The standard oil will conduct electricity, thus resulting in a ground fault. This is why non-Toyota dealer service locations are not advisable for air conditioning work unless the independent is a Toyota hybrid specialist.

 

But it often IS a valid troubleshooting technique; sometimes invaluable.

When there are more than 2 or 3 codes set, some of which seem to be unrelated, that can confuse the picture.
If all is reset, often the first ones to come back are the most likely to actually point to the problem

 

I don't understand my comment either.

And I wouldn't know how to be "faciast" if I tried.

 

I recommend that you fully-charge the 12V battery now.

You still need to take some action eventually regarding the high voltage ground fault, to determine whether or not the air conditioner compressor is the faulty component.

 

agreed. i hate when everything goes at the same time. i think your battery is kaput, but should be under warranty.