Monitor Description

The power management control ECU (HV CPU) performs many diagnostic tests to verify proper operation of internal ECU systems. In one of these tests, the power management control ECU (HV CPU) performs a self-test. If the power management control ECU (HV CPU) detects an internal problem during this self-test, it will conclude that there is an internal malfunction. The power management control ECU (HV CPU) will illuminate the MIL and set a DTC.