Check Engine + Light Triangle + TCS+ P0AFA P3000 On

Turns out I wont be buying any...was digging thru my prius parts and forgot that I had purchased a OBDlink LX to work on a highlander and that happens to work with Dr. Prius.... all is good on that end, will post results soon.

 

Ok so I managed to use my OBDLink LX to Dr. Prius and got some readings. However, I am new to this app and deciphering the readings on it as whole. I took a screenshot of the readings with the car off on ACC mode and a small video with the car one and readigns go up and down not sure if thats normal.

Below is a photo of readings on ACC mode (car off) and the video link for youtube of the readings
https://youtube.com/shorts/tY3uIeySX-A?feature=share

 

Ok got it, so will take the car on a drive tonight if i dont get home to late. Will post as soon as I do this.

 

@Brian1954 Here are the links to the hard acceleration and regenerative hard braking readings.

Acceleration readings: https://youtube.com/shorts/lgATTD3R46I
Braking Readings: https://youtube.com/shorts/z7acXYH3YVM?feature=share

let me know what you see.

 

Thats where I would need the help as my electrical diagnosis expertise is to a minimum. I have checked the Hybrid ECU and does not look burnt nor are the pins loose or damaged. Wiring looks intact. My next move was to remove the battery cover exposing the cells and inspect connections at each cell for corrosion. As mentioned before, the car had a replacement HV battery back in 2017 and lasted until this year when the car was parked for a year and when restarted, this battery issue happen. I dont think anything was done incorrectly by HV battery installers as it wouldnt have lasted 7 years IMO.

So could something be causing the HV battery to show a fault then rather than coming to the conclusion that its just a bad HV battery or specific cells need replacing?