2011 3rd Gen Won't Start after ABS Actuator and Accumulator Replacement

When you say won't start you mean the gas engine doesn't start or you can't get in ready mode and move forward and or backwards?

 

You need to go over EVERY connector and make sure you plugged them in
correctly. It's common to miss one.

Does it go into "ready"? Or does the engine not run?

 

Where did you find that you can bleed the brakes by jumping the 4th and 13th pin???????? That will NOT work to bleed the brakes!!!

Posted via the PriusChat mobile app.

 

Did you install the new battery, then bleed the brake system? If so, you probably drained the battery.

It's always a good idea to charge a "new" battery. No matter what vehicle it's for.
But for the Prius, it's vital!

Glad all is working for you!

 

Someone on YouTube completely made that up, and that illustrates the problem with getting info from random YouTube sites. Many of us here are familiar with what all of those steps do, and none of them are doing what you think.

First, there is such a thing as ECB Invalid Mode, and there is both a Techstream and a non-Techstream way to get there, but "Jump pins 4 & 13" is not how you do it. The non-Techstream invalid mode process involves pushing the brake pedal so many times in N, so many times in P, and so many times in N again. Yes, it shows a blinking ECB light when you do it right.

Second, ECB invalid mode is not enough for fully bleeding the brakes. It is enough for doing a fluid replacement on an intact system with no air in it, where you just add new fluid while letting old out, and you never get any air in. If air gets in, you need to bleed, which requires more than invalid mode.

So what does "Jump pins 4 & 13" do? It puts some ECUs (the one for the brakes, and a few others) into a special mode to blink out their trouble codes on their usual warning lights. You can find all the low-down on that here:

Blink (a/k/a Flash) Codes – How to. | PriusChat

When you placed that jumper and turned the car on, the light blinked because it was telling you about its codes, not because you were in invalid mode, which you weren't.

The 8 pedal presses while you were in the code blink mode? All that does is make the current trouble codes get forgotten. Also described on the page linked above.

The bleeding you did, you can kind of get away with on the rears. Not so for the fronts. There are separate brake fluid circuits within the actuator for the front brakes, and without being in the actual bleed mode (not just invalid) where the computer opens the right valves for you, all the air doesn't get out. Use your favorite vacuum or pressure bleeder or click your heels three times and chant, or whatever, if the valves are closed the air stays put.

There are a lot of threads here where you can learn how brake bleeding on your Prius can be properly done.