Prius Shifting issue

Get the fault codes read immediately.


Posted via the PriusChat mobile app.

 

Are you using Techstream?

Posted via the PriusChat mobile app.

 

Most likely you have a HV insulation resistance fault. Typically caused by electrolyte leakage from a module in the HV battery, but can be many other causes (cable insulation, inverter, transaxle). An electrolyte leak will have very little, if any, impact on the module voltage. It can usually be identified by discoloration on the metal plate the modules are mounted to.

 

If you have a red triangle locking in, then there's a code in there waiting to be read. It may just be your reader is not hybrid capable.

 

So torque is not showing any Diagnostic Code?
Unfortunately, I'm not familiar with torque, as I use techstream for all things prius, but I've heard a lot of good things about it.

 

You may need to drive to a parts store like AutoZone or similar to see if they're able to use one of their readers to see if they can pick it up. There should be a DTC and subcodes in the freeze frame data.

The only time that the Red Triangle lights and provides no code (as far as I'm aware) is when oil pressure is low.

Makes me wonder if it would be worth the forum making a member location list showing who has Techstream, where they are (generally) and how far they'd be willing to go to provide assistance.....

 

Looks like he’s in Auburn, AL if the location and zip code align.

Not sure who’s in the general vicinity either.

I agree that There is a code there though.

 

5 hour drive is a bit much for me tonight.......I hope you get lucky and someone nearby chimes in...

 

If torque cannot read the codes any code reader you're going to find at a regular auto parts place is probably not going to see anything either. You might try dr. Prius app or hybrid assistant app. I believe they can see and clear Hybrid battery codes as well as others. Both are free on the app store

Posted via the PriusChat mobile app.

 

is there movement in the inverter fluid?

 

Not wanting to reach Grandma to suck eggs, but you loaded the Prius specific extended PIDs in Torque Pro, didn't you?

Also, don't disconnect the 12 V battery before reading the DTCs. You will not see any DTCs after you have disconnected the battery, hence why the light(s) go off after doing so.