HYBRID CONTROL SYSTEM, Diagnostic DTC:P0C3A-621, P0C3B-622, P0C3F-623, P0C40-624

DTC Code DTC Name
P0C3A-621 DC / DC Converter Temperature Sensor "A" Low
P0C3B-622 DC / DC Converter Temperature Sensor "A" High
P0C3F-623 DC / DC Converter Temperature Sensor "B" Low
P0C40-624 DC / DC Converter Temperature Sensor "B" High

DESCRIPTION

The MG ECU detects the temperature of the boost converter using the temperature sensor built into the boost converter. The boost converter using the temperature sensor outputs voltage which changes between 0.5 and 4.5 V in response to a change in temperature. The higher the boost converter temperature, the lower the output voltage. Conversely, the lower the boost converter temperature, the higher the output voltage. The MG ECU limit load based on signals sent from the boost converter temperature sensor to help prevent overheating. The MG ECU also detects malfunctions in the boost converter temperature sensor and its wiring.

A01NCNGE01
DTC No. INF Code DTC Detection Condition Trouble Area
P0C3A 621 Open or short to GND in the boost converter temperature sensor (upper) signal circuit Inverter with converter assembly
P0C3B 622 Short to +B in the boost converter temperature sensor (upper) signal circuit
P0C3F 623 Open or short to GND in the boost converter temperature sensor (lower) signal circuit
P0C40 624 Short to +B in the boost converter temperature sensor (lower) signal circuit

INSPECTION PROCEDURE

PROCEDURE


  1. REPLACE INVERTER WITH CONVERTER ASSEMBLY


    1. Replace the inverter with converter assembly Click here.


    NEXT

    COMPLETED