DTC P0A94-553 DC / DC Converter Performance: Description

See the description of the boost converter (see DTC P0A94-442 DC / DC CONVERTER PERFORMANCE ).

If the boost converter has a circuit malfunction, internal short, or overheats, the boost converter transmits that information to the FCV terminal of the HV control ECU via the boost converter fail signal line.

DTC DETECTION CONDITION AND TROUBLE AREA

DTC No.	INF Code	DTC Detection Condition	Trouble Area
P0A94	553	Boost converter fail (FCV) signal detection (boost converter overheating)	Wire harness or connector Inverter cooling system Water pump with motor assembly Cooling fan motor No. 2 cooling fan motor HV transaxle assembly Hybrid vehicle motor Hybrid vehicle generator HV control ECU Inverter with converter assembly