My Hybrid Assistant & OBDLink LX won't work with a Gen 4

I don't have any suggestions but I have a similar problem with my current PP. HA and OBDLink Lx worked fine on my 2017 PP and 2020 PP, but after I got 2021 PP, it behaves very similarly to what you have described. I thought it was OBDLink Lx causing the problem, but exactly the same problem was observed when I paired the app with other OBDII dongles. Tried Panlong and Carista.

I don't have any other hybrid car HA support so I can't test the app and adaptor on other cars.

 

I wonder what Toyota did. My OBD Link LX works fine on my 2017 Prime with whichever version of HA I have. (probably not the latest) Your description sounds like it might be a bug in the app. Have you tried contacting HA?

 

That is my thought and had it as my TO DO list but have not contacted HA. If I know anyone using HA on 2021 PP, then at least I know it is not the 2021 model year PP, as I know it worked fine on both of my 2017 and 2020 PPs.

 

I'm not sure exactly how bt works and my cheapo ODB2 bt doesn't work anymore with HA now that I've upgraded it to a new version that has hybrid reporter integrated. But I also now have 3 bt ODB2 adapters paired on my phone. So my next step will be to unpair all three adapters and try try again from scratch.

My cheapo bt adapter got one 60 mile trip logged the first day I tried it with the new version of HA. But it also logged two trips of 0 miles just before or after the trip it did log. Confusing? sorry bout that! I'm not really sure what the deal is with it yet, either !

 

You can also check here:
https://www.facebook.com/hybridassistant/
and here:
Hybrid Assistant: FAQ

 

Thanks for your update. I have not contacted HA yet, but after reading your comment above, I got interested in contacting them to see if they can help me. Unlike your case, I have my car sitting in my driveway right now.

I just emailed HA with the debugging log that may have been stored in the system from my last attempt to start the app. I will let you know if I hear from them. With the holiday coming up soon, it may take time for them to respond. By the way, my attempt to use HA on my current 2021 PP with three different OBDII adaptors ended with the same result. They all briefly connect successfully, but immediately lose the connection. The sequence of the connection and losing the connection is shown below.

 

I had a similar experience when we got one of the first 2019 Rav4 hybrids. HA was very responsive in communicating back and forth until we got it working. So, the guy clearly makes an effort. Hopefully, when you can send him a log, he can come up with a solution. Let us know what happens.

 

Thanks for your update. I have not heard from HA after sending them a debug log. I just looked at the app on my phone, but could not find the "database maintenance page" under the setting menu. Can you show me where you are seeing that?

 

UPDATE: I did find the "database maintenance page" in the Hybrid Reporter section of the app. I did not think that will help but I tried putting the code anyway. Well, it did not work, but since I was already sitting in the car trying anyway, I put the app back to the default settings and power cycled the app and OBDLink LX several times.

At first, it was not connecting, but after 3 or 4 trials, the app started to enter the OBD initialization step instead of being stuck in Connecting. On my final trial, it finally connected and recognize the car as PriusPrime for the first time. I did not need to drive anywhere, so I have no data to log, but the app seems to have fixed itself. Next time I have to drive somewhere, I will see if it can now connect and record the data in the log.

 

When I first acquired the 2021 PP in July and tried using HA app on it, although I could not get it to work, I had no problem connecting and using the OBDLink's own software, Carista App, Dr. Prius, and Tire Assistant App. All except HA worked fine. From that, I concluded the problem is on the HA App (or a combination of the HA app with the phone/car) rather than on the phone or car, Of note, the Tire Assistant app is developed by the same team who developed the HA.

In any case, next time I have to drive my PP, I will try connecting to HA and see if it record the trip data as designed.

 

I am having the same issue, I can't get hybrid assistant to work with my 2021 prime xle.
I looked at their supported car section, and sadly they do not support 2021 Prius prime. I really wish they did.

 

Well, today I tried connecting to the HA app using the Carista dongle. (I had my OBDLink LX in our other car.) When I first started the app and selected Carista for the Bluetooth, it did not connect. I restarted the app again and on the second try, it did connect and recognized the car as Prius Prime.

My trip consisting of ~30miles was driven mixed HV and EV and the app dashboard seemed to be working. But after completion of the trip HA report was not registering the fuel use on the HV mode portion. But the funny thing is that the report did register the engine running. I started the trip from 97% SOC and finished the trip with 1% SOC left. The total distance on EV mode was 24.51miles, out of 33.12miles or 74%. For the remaining 26%, ICE was running, but no fuel use was registered.

I will need to try the HA app again next time I drive using the OBDLink LX to see if the problem was with the dongle.

 

Is this with a 2021 prime? Maybe it's my obdii adapter, if it works with the LX I'll buy that adapter.

 

Yes, my PP is new 2021 PP Ltd. I had used the HA app in my previous 2017 PP Premium with OBDLink LX adaptor, but when I first got the 2021 PP last July, the app did not work. I was having a connection issue similar to OP as I commented in #2. The connection problem was not OBDLink LX adaptor specific, but the same OBDII initialization problem with Carista and Panlong adaptors. That was back in last year July. I gave up on using the HA app for a while until I came across this thread.

I haven't tried using the OBDLink LX adaptor again but it seems the Carista adaptor is working now, at least it connects and recognizes the car. Only problem I just found out is that the Carista dongle seems to continue to draw Amp even after the car is shut down. It was draining the 12v battery fairly quickly. The OBDLink LX adaptor has an auto shut-off function when the car goes off. Since I don't drive often now (only once or twice a week) and we are having an arctic blast right now (low temp -26F), I decided to remove the Carista dongle and am now charging the 12v battery.

I will check again with the OBDLink LX adaptor next time I have to drive the car.

 

Thank you,I can't wait to hear if the LX adapter works as well. I wouldnt want the parasite drain either. It will be in the teens, to single digits here next few days, that's cold enough!