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List of Diagnostic Trouble Code (DTC): List

NOTE: When the sunload sensor check is performed indoors or in the shade, it could be diagnosed as having an open circuit. Always check the sunload sensor in direct sunlight.
DTC Item Content of diagnosis Note
B1601 In-Vehicle Sensor Short In-vehicle air temperature sensor circuit is shorted. Refer to DTC B1601 IN-VEHICLE SENSOR SHORT .
B1602 In-Vehicle Sensor Open In-vehicle air temperature sensor circuit is open. Refer to DTC B1602 IN-VEHICLE SENSOR OPEN .
B1603 Evaporator Sensor Short Post evaporator sensor circuit is shorted. Refer to DTC B1603 EVAPORATOR SENSOR SHORT .
B1604 Evaporator Sensor Open Post evaporator sensor circuit is open. Refer to DTC B1604 EVAPORATOR SENSOR OPEN .
B1605 Refrigerant Flow Sensor Circuit Open Pressure sensor circuit is open. (2) Refer to DTC B1605 REFRIGERANT FLOW SENSOR CIRCUIT OPEN .
B1606 Refrigerant Flow Sensor Circuit Short Pressure sensor circuit is shorted. (2) Refer to DTC B1606 REFRIGERANT FLOW SENSOR CIRCUIT SHORT .
B1607 Sunload Sensor Short Sunload sensor circuit is shorted. (1) Refer to DTC B1607 SUNLOAD SENSOR SHORT .
B1608 Sunload Sensor Open Sunload sensor circuit is open. (1), (2) Refer to DTC B1608 SUNLOAD SENSOR OPEN .
B1610 Airmix Door Actuator Potentiometer Circuit Open (Driver's) Airmix door actuator potentiometer circuit is open. Refer to DTC B1610 AIRMIX DOOR ACTUATOR POTENTIOMETER CIRCUIT OPEN (DRIVER'S) .
B1611 Airmix Door Actuator Potentiometer Circuit Short (Driver's) Airmix door actuator potentiometer circuit is shorted. Refer to DTC B1611 AIRMIX DOOR ACTUATOR POTENTIOMETER CIRCUIT SHORT (DRIVER'S) .
B1612 Airmix Door Actuator Lock (Driver's) Mode door actuator is locked. Refer to DTC B1612 AIRMIX DOOR ACTUATOR LOCK (DRIVER'S) .
B1613 Airmix Door Actuator Potentiometer Circuit Open (Passenger's) Airmix door actuator potentiometer circuit is open. Refer to DTC B1613 AIRMIX DOOR ACTUATOR POTENTIOMETER CIRCUIT OPEN (PASSENGER'S) .
B1614 Airmix Door Actuator Potentiometer Circuit Short (Passenger's) Airmix door actuator potentiometer circuit is shorted. Refer to DTC B1614 AIRMIX DOOR ACTUATOR POTENTIOMETER CIRCUIT SHORT (PASSENGER'S) .
B1615 Airmix Door Actuator Lock (Passenger's) Mode door actuator is locked. Refer to DTC B1615 AIRMIX DOOR ACTUATOR LOCK (PASSENGER'S) .
B1620 Mode Door Actuator Potentiometer Circuit Open Mode door actuator potentiometer circuit is open. Refer to DTC B1620 MODE DOOR ACTUATOR POTENTIOMETER CIRCUIT OPEN .
B1621 Mode Door Actuator Potentiometer Circuit Short Mode door actuator potentiometer circuit is shorted. Refer to DTC B1621 MODE DOOR ACTUATOR POTENTIOMETER CIRCUIT SHORT .
B1622 Mode Door Actuator Lock Mode door actuator is locked. Refer to DTC B1622 MODE DOOR ACTUATOR LOCK .
B1630 Rear Vent Door Actuator Potentiometer Circuit Open Rear vent door actuator potentiometer circuit is open. Refer to DTC B1630 REAR VENT DOOR ACTUATOR POTENTIOMETER CIRCUIT OPEN .
B1631 Rear Vent Door Actuator Potentiometer Circuit Short Rear vent door actuator potentiometer circuit is shorted. Refer to DTC B1631 REAR VENT DOOR ACTUATOR POTENTIOMETER CIRCUIT SHORT .
B1632 Rear Vent Door Actuator Lock Rear vent door actuator is locked. Refer to DTC B1632 REAR VENT DOOR ACTUATOR LOCK .
B1635 Out Side Temperature Sensor Circuit Abnormality (Air Conditioner) Ambient air temperature sensor circuit is abnormal. Refer to DTC B1635 OUT SIDE TEMPERATURE SENSOR CIRCUIT ABNORMALITY (AIR CONDITIONER) .
B1641 Refrigerant Flow Sensor Circuit Short Refrigerant flow sensor circuit is shorted. (2) Refer to DTC B1641 REFRIGERANT FLOW SENSOR CIRCUIT SHORT .
B1642 Refrigerant Flow Sensor Circuit Open Refrigerant flow sensor circuit is open. (2) Refer to DTC B1642 REFRIGERANT FLOW SENSOR CIRCUIT OPEN .
B1643 Variable Flow Change Solenoid Duty Circuit Abnormal Variable flow change solenoid duty circuit is open or shorted. (2) Refer to DTC B1643 VARIABLE FLOW CHANGE SOLENOID DUTY CIRCUIT ABNORMAL .
B1644 Refrigerant Not Sealed Drive Error Compressor is rotated before filling refrigerant. Displays when delivery mode only. Refer to DTC B1644 REFRIGERANT NOT SEALED DRIVE ERROR .
U0001 CAN Communication Bus Off CAN communication bus off (2) Refer to DTC U0001 CAN COMMUNICATION BUS OFF .
U0002 CAN Communication Error CAN communication error (2) Refer to DTC U0002 CAN COMMUNICATION ERROR .
U0028 Heater Control Panel Communication Error Communication with heater control panel is faulty. (2) Refer to DTC U0028 HEATER CONTROL PANEL COMMUNICATION ERROR .
(1) When the sunload sensor inspection is performed indoors or in the shade, it may be diagnosed as having an open circuit due to an insufficient light volume. In this case, check the sunload sensor at a location exposed to direct sunlight.
(2) Displays current malfunction only.