2019 Toyota Highlander Charging Issue

I recently had 2019 Toyota Highlander (2GR-FKS) in the shop with an intermittent charging issue. It had almost 250k miles and had been in the shop a couple weeks prior because the generator locked up and basically imploded. Another tech replaced it with an aftermarket unit and it was towed back to the shop a few days later with a vague customer complaint about the “all of the lights on the dash coming on” and the car stalling. The vehicle started right up for me and I went through my usual process - data pids all looked great, voltage at the battery was around 14V at idle, voltage drop was normal on the B+ and ground side, etc…

I wasn’t able to duplicate the fault until I drove this for 35 miles!

Since TIS doesn’t give an example waveform of what I should be seeing on the LIN line from the generator, I was hoping someone on this forum might be able to explain what I’m seeing on the scope.

Channel A is on the LIN line at the generator and Channel B is on the battery current sensor

REPLACE WITH OEM UNIT AND GO FOR A DRIVE