B1471 LEXUS – A/C Inverter High Voltage Power Resource System Malfunction

B1471 LEXUS Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

B1471 LEXUS Possible Causes

Faulty Hybrid Control ECU,Faulty A/C Inverter (w/Converter Inverter Assembly)

B1471 LEXUS Description

The A/C Inverter Assembly monitors the power voltage from the main battery in the self circuit. It stops compressor control and outputs the Diagnostic Trouble Code (DTC) when the monitored voltage is outside the specified range. The output DTC is memorized as previous trouble. The compressor control may not resume unless the power switch is turned off. The OBDII code set when an open or short in A/C Inverter High Voltage Power Resource System.