Monitor Description
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 HV control ECU monitors the rear motor gate shutdown (RSDN) signal. If the HV control ECU detects a fault in the RSDN signal, HV control ECU illuminates the MIL and sets a DTC.