DTC P0A94-127: Inverter Performance: Description

The motor generator control ECU (MG ECU) detects high voltage values from the 2 voltage sensors (VL, VH) inside the inverter with converter assembly. Also, the battery voltage sensor detects the battery voltage (VB).

HINT:

VB indicates the voltage of the No. 1 EV battery.

If a malfunction occurs in the inverter, the MG ECU detects it and transmits this information to the power management control ECU.

Fig 1: Identifying Inverter With Converter Assembly System

DTC No.	INF Code	DTC Detection Condition	Trouble Area
P0A94	127	Inverter overvoltage signal detection (overvoltage due to system malfunction)	Inverter with converter assembly Service plug grip Frame wire EV transaxle with motor assembly Motor cable Wire harness or connector PCU fuse Power management control ECU