Dreaded P0A80 Code - Car Running / Charging Good.

On the car currently? or when I did what you quoted?

 

Here is the info that specifically says enter INSPECTION mode for the Universal Trip.

P0A80 Confirmation Drive Steps for 2015 Prius
To clear the P0A80 diagnostic trouble code (DTC) in a 2015 Toyota Prius, follow these universal trip steps carefully:

Preparation

• Connect Techstream: Attach the Techstream diagnostic tool to the vehicle's DLC3 port.
• Power On: Turn the power switch to the "IG" position and turn on the Techstream.

Clearing DTCs

1. Clear DTCs: Use the Techstream to clear any stored DTCs, even if none are present.
2. Power Off: Turn the power switch off.
3. Power On (READY): Turn the power switch back on to the "READY" position and turn on the Techstream again.

Universal Trip Procedure

1. Enter Inspection Mode: Start the engine with the power switch in the "IG" position to enable inspection mode.
2. Idle the Engine: Let the engine idle for at least 30 seconds.
3. Drive the Vehicle:
   • Drive at a speed of 25 mph or more for a total of at least 5 minutes.
4. Wait: After driving, allow 10 minutes to pass before turning off the engine.

Final Check

• Check DTCs Again: After completing the universal trip, use the Techstream to check if the permanent DTCs, including P0A80, have been cleared.

Following these steps should help in successfully clearing the P0A80 code. If the code persists, further diagnosis may be needed to address underlying issues with the hybrid battery system.


So, am I missing something and can this be once and for all accurately confirm which it is? I read DO NOT DRIVE vehicle in inspection mode as it can cause damage to the transaxle and above it clearly says to enter Inspection mode and DRIVE the car…..? I read Maintenance and Inspection mode are the same thing and in order to put vehicle in such mode the dance has to be performed so it is very confusing.

If anyone has ACTUALLY DONE this and can by experience chime in rather than providing links or written instructions it would be much appreciated because the written instructions arent very clear and contradicting.

 

I appreciate the info above but I feel its redundant to whats been said in the last 6 pages of this thread and we are dancing around an actual clear answer. By all means I appreciate the chime but what im looking for at this point isnt explanations of what does what but what to actually do for this universal trip. I am getting from @ChapmanF that it would be ok to drive the vehicle in inspection mode like its saying has to be done and instructions against it are for theoretical legal reasons and toyota to save their arse.

Also, the last procedure doesnt mention the park put in neutral and wait for HV SOC to drop to 30%.

This is what I am ready to do… Please chime in if any part of this is NOT correct, as after all the inconsistencies is what I understand:

1. Connect my scanner to the vehicle
2. Power On: Turn the power switch to the "IG” position
3. Perform a force clear on the scanner even though NO current codes exist nor is CEL on.
4. Power Off: Turn the power switch off.
5. Power On (READY): Turn the power switch back on to the "READY” position
6. Put vehicle into inspection mode by performing dance procedure (brake twice, neutral, brake twice yadda yadda)
7. Let vehicle idle for at least 30 secs
8. Drive at a speed of 25 mph or more for a total of at least 5 minutes.
9. Stop and with the select lever in N, leave the vehicle until SOC drops to 30%.
10 Once it hits that number, check for codes and see if the permanent code is gone.

(Universal trip consists of steps 6-8)

 

Understood….so drivre in inspection mode or no???? LMAO

The part where right before the universal trip requires the car to be on but next step staing perform an universal trip requires the car to be off to put into inspection mode THIS IS BEYOND FRUSTRATING that no CLEAR CONCISE answers are available.

 

EXACTLY LOL.

Anyhow, I did the steps and did NOT put the car in inspection mode due to that specific contradiction IMO. It did NOT remove the permanent code. I did 25mph for 7 mins and stopped the car til SOC got to 30 and checked codes and permanent was still there. BTW, bluedriver did give me the option to clear codes even of there was no active ones. I may try this again but this time driving the 5 min at 25 mph under inspection/maintenance mode and see if thats the way.

I also checked all 14 modules and all were reading near identical values while car was on at 16.47 +/- .20 and I really do not know what else to look at as the battery appears to be working correctly and none of my scanners (autel ap200, blue driver, icon t10) give me a sub code. If the second try under inspection mode doesnt remove the code, the next thing is going into the battery and checking the HV battery ECU connectors for corrosion and the bus bars for same. Pretty stressed about this as I cannot get my tags since it will not pass smog with the permanent code. And, now the count is back down to 2 warm up cycles and 24 miles :/

BTW, I had contacted Hybrid Pit as someone here suggested for help and they didnt even know that a confirmation drive / universal trip was. So i left it at that lol.