WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
The ECM monitors its internal operation and stores this DTC when it detects an internal malfunction.
DTC No.
DTC Detection Condition
Trouble Area
P062F
An ECM internal error (EEPROM) (1 trip detection logic).