Toyota Prius 2010 Repair Manual page 115

DTC B1471/71 A/C Inverter High Voltage Power Resource System Malfunction
DESCRIPTION
The A/C inverter assembly monitors power voltage from the main battery in the circuit. It stops compressor
control and stores the DTC when the monitored voltage is outside the specified range.
The output DTC is memorized as previous trouble. Compressor control may not resume unless the power
switch is turned off.
DTC No. DTC Detection Condition
Open or short in A/C inverter high
voltage power resource system.
B1471/71
The boost pressure system is
broken or malfunctioning.
WIRING DIAGRAM
2010 Toyota Prius
Trouble Area
Electric vehicle fuse
No. 2 engine wire (harness or connector between
compressor with motor assembly and inverter with
converter assembly)
Compressor with motor assembly
Hybrid control system
CAN communication system
Repair Manual