Prius blown motor swap permanent code issue

Don't know about permanent codes, but often it takes about 10 cycles of the Power button to clear the Check Hybrid System error once the error condition is fixed.



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"Permanent" codes are called that because you do not get any shortcut to clearing them. Once you've repaired the car and you're driving it, each permanent code will go away as soon as its corresponding monitor test in the control module runs, and convinces itself that the problem was fixed.

If you are in a hurry for the permanent codes to go away, you can look them up in the repair manual (more infp), and for each permanent code that you have, you will find a "confirmation driving pattern" shown. There can be a different pattern for each code, which will be a certain pattern you can drive that should be sure to trigger the monitor test for that code, so the ECM will notice the problem was fixed.

A lot of the confirmation patterns will include something called a "universal trip", which is defined one time, earlier in the manual.

 

Do you have a scan tool that can show you the traction battery state of charge? (The dash bars show a zoomed-in range of the middle of the state-of-charge range. A scan tool can show the actual SoC.)

From things I've read, it is somewhere below about 20% SoC where the ECU says "nope, not trying to start."

What are you scanning your trouble codes with? Perhaps it is not showing all the codes you have. The ones you have listed, as far as I remember, do not prevent trying to start.

 

Yes


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Not sure about that.

 

It sounds like your hybrid battery is too depleted to try to start the car. The Prius uses the Hybrid Battery to start the car.

 

Would be best to get a scan tool to check status of hybrid battery.

 

Where are you located? Maybe someone have a Prolong charger that could install their
harness and charge your battery up...

 

Dealerships can bring in a special charger I think, for depleted but (hopefully) viable batteries. Might have you paying through the nose though. Worth a phone call?

 

We've ALL done stuff like that before. And certain to do it again!

 

Maybe that switch HAD to be thus, but even so: the joker that designed it left a legacy of confusion.

 

Like that typo lol.

 

In addition to the legacy of confusion, that switch also leaves a P0A0D code, so if a person is using a scan tool that is able to show the codes from the power management control ECU, then seeing that code leads straight to "oh yeah, I didn't get that switch fully home" and problem solved in one.