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Next day Okay after another stab at this problem I found I had a bad HV ECU, the voltage leak to ground was traveling from my HV battery sensor...
I said in my posts I would figure this out. Yes for a while I was grasping anything that looked suspicious like my SOC not reading in sync in...
I know this thread is old but I wanted to add to it. My 2008 Prius shows HV voltage measuring from the cables coming off the HV battery to chassis...
I am slow catching up on your very helpful post responses, but that makes sense kind of like how it takes time driving to set 02 codes for...
I just saw your instructions today Friday, codes were cleared while troubleshooting yesterday, and have not driven the car to set the P0A80 code...
I think I am chasing symptoms, not the problem as far as the SOC not matching the actual battery charge. I troubleshooted the CAN BUS and voltages...
Thanks Brian for your input. The ECM has a set time it takes to do some readings like 02 sensor readings, not sure about SOC I have over 330k...
I have this same problem too in a Gen 2 Prius. In a conventional cars charging system you would suspect the voltage regulator in the alternator,...
I know this thread is old, but the electric power drive of a prius is more like a 3 phase ac motor which uses no brushes, yes it uses strong...
I meant my car was throwing a P3000 code not P300
My battery charge display would sometimes show only 1 bar and randomly I would throw a generic P300 and P080 code. If I unplugged the battery...
Had this problem, did you try and unhook the positive wire from the battery for 2 minutes and hook it back up again to get the ready light to come...
