Home >> Toyota >> 2015 >> Avalon Hybrid Limited >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System - Diagnostic Codes - (Hybrid) (4 Of 8) >> Hybrid Control System >> DTC P0C3A-621: DC / DC Converter Temperature Sensor "A" Low; DTC P0C3B-622: DC / DC Converter Temperature Sensor "A" High; DTC P0C3F-623: DC / DC Converter Temperature Sensor "B" Low; DTC P0C40-624: DC / DC Converter Temperature Sensor "B" High [10/2015 - ] >> Component Operating Range