Monitor Description
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 power management control ECU performs diagnostic tests to verify proper operation of internal ECU systems. One of these monitors the rationality of internal analog (signal) to digital conversions. The power management control ECU monitors the internal A/D (Analog/Digital converter) value. If there is an A/D converter malfunction, the power management control ECU will illuminate the MIL and store a DTC.