P3000 won’t go away…

Well you do need a capable scanner to read what's in the Prius that you have doesn't have to be tech It could be an AP200 that's only like $55 but at some point if you're willing to play whack them all and do all this other stuff I would think a 55 dollar scanner would certainly be in the mix. And so you have a red triangle and nothing else usually there's other lights on the triangles just letting you know that things are being seen by systems and you need to look over there at the orange lights the red BRAKE light or what have you I don't know I can't see from here.

 

You could have the battery isolation fault in the battery area that can set similar business but we're all just guessing doing that the down and dirty test for the HV battery leak is to take the cover off the back of the service plug leave the hoop up but inserted and measure from one of those silver bolts DC volts to one of the ground or mounting bolts of the battery chassis to the frame of the car it should count down to zero DC volts whatever your left with looking at that's what's running to the car chassis that's your negative 12 volt ground for your other electrical system so it kind of wreaks havoc . On computers and electronics but usually when this is going on you have to reset that code to get the car to start for your next drive. The AP200 is the capable scan tool that's a great bi-directional scanner for anything that has an OBD2 port and if you take the Toyota software free for the one car model you get you can still read codes on everything on the planet you just can't do any service work with this particular scanner until you have the given software for the given make and/or model.

 

That's to be expected. When there's a hybrid system fault, the HV control ECU tells the skid control ECU about it, and in response the skid control ECU will set the codes C1259 (an ECB code) and/or C1310 (a VSC code), making those lights come on.

But of course those codes don't tell you much about what actual hybrid-system code is at the bottom of it all. We do have a thread comparing scan tools and apps and identifying which ones can get all the codes:

Gen2 OBD2 app review | PriusChat

 

When you get the device in your hand and you scan the QR code and you load up the software on your phone and then you log into the AP software you're going to tell the AP software that you want to register a Toyota Prius doesn't matter at the moment just do the Prius the car you mess with the most I guess and boom you'll have that software plus 109 MB separate download that is just for Toyota that works with the AP200 when it's plugged in to your Toyota so far my Toyota software registered to my '09 Prius I think or it's the '07 I can't remember that device I can plug into all of my Toyotas including my old sienna van 2001 and it all works everything it's supposed to Reed's codes bleed brakes on the generation 2 I don't know about a three and all the important stuff It shows TPMS sensor data but won't strike up a relearn so you have to have the tire store do it or text software and manually type in the known sensor numbers etc.

 

You buy it from questionable websites for 40 bucks and then a CD and usb to obd 2 cable will show up in the mail. Install on an old laptop and dedicate it to be your tech stream setup

 

So, it sounds like you might have a problem with the voltage sense wiring. That's the small wires that go from the battery blocks to the orange connector on the battery ecu. There could be a broken wire in the harness or corrosion at the ecu connector. (but that's a guess)

That said, you should have a more capable scantool. The Autel app will only work with the Autel adapter.

And because they want more money- this is the only scantool I have ever seen that treats Lexus as a separate brand from Toyota, so they can charge a subscription if you want both.

Posted via the PriusChat mobile app.