WARNING: This page is about a different car, the 2019 Toyota Highlander, 2018 Toyota Highlander, and 2017 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
P3190 AND P3191
Fuel cut operation
Not operated
Engine speed
650 rpm or more (varies with engine coolant temperature)
Communication with hybrid vehicle control ECU assembly malfunction (U0293)