Monitor Strategy
WARNING: This page is about a different car, the 2006 Lexus RX 400h. However, it is still accessible from the selected car via links, so may be relevant.
The MG ECU performs many diagnostic tests to verify proper operation of internal ECU systems. In this diagnostic monitor, the MG ECU checks for an R/D (Resolver/Digital Converter) malfunction involving the rear motor resolver. If MG ECU detects an R/D error, it will conclude that there is an internal malfunction involving the rear motor resolver. The HV control ECU will illuminate the MIL and set a DTC.