HVAC DTCS
HVAC DIAGNOSTIC TROUBLE CODES (DTC) LIST
| 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 , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1602 | In-Vehicle Sensor Open | In-vehicle air temperature sensor circuit is open. | Refer to , DTC B1602 IN-VEHICLE SENSOR OPEN , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1603 | Evaporator Sensor Circuit Short | Evaporator sensor circuit is shorted. | Refer to , DTC B1603 EVAPORATOR SENSOR SHORT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1604 | Evaporator Sensor Circuit Open | Evaporator sensor circuit is open. | Refer to , DTC B1604 EVAPORATOR SENSOR OPEN , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1605 | Refrigerant Pressure Sensor Circuit Open | Pressure sensor circuit is open. | Displays current malfunction only. Refer to , DTC B1605 REFRIGERANT FLOW SENSOR CIRCUIT OPEN , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1606 | Refrigerant Pressure Sensor Circuit Short | Pressure sensor circuit is shorted. | Displays current malfunction only. Refer to , DTC B1606 REFRIGERANT FLOW SENSOR CIRCUIT SHORT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1607 | Sunload Sensor Short |
|
Refer to , DTC B1607 SUNLOAD SENSOR SHORT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1608 | Sunload Sensor Open | Sunload sensor circuit is open. | Displays current malfunction only. Refer to , DTC B1608 SUNLOAD SENSOR OPEN , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| 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) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| 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) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1612 | Airmix Door Actuator - Lock (Driver's) | Mode door actuator is locked. | Refer to , DTC B1612 AIRMIX DOOR ACTUATOR LOCK (DRIVER'S) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| 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) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| 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) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1615 | Airmix Door Actuator - Lock (Passenger's) | Mode door actuator is locked. | Refer to , DTC B1615 AIRMIX DOOR ACTUATOR LOCK (PASSENGER'S) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1620 | Mode Door Actuator - Potentiometer Circuit Open | Mode door actuator - potentiometer circuit is open. | Refer to , DTC B1620 MODE DOOR ACTUATOR POTENTIOMETER CIRCUIT OPEN , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1621 | Mode Door Actuator - Potentiometer Circuit Short | Mode door actuator - potentiometer circuit is shorted. | Refer to , DTC B1621 MODE DOOR ACTUATOR POTENTIOMETER CIRCUIT SHORT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1622 | Mode Door Actuator - Lock | Mode door actuator is locked. | Refer to , DTC B1622 MODE DOOR ACTUATOR LOCK , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| U0001 | CAN Communication Bus Off | CAN communication bus off | Displays current malfunction only. Refer to , DTC U0001 CAN COMMUNICATION BUS OFF , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| U0002 | CAN Communication Error | CAN communication error Displays current malfunction only. | Refer to , DTC U0002 CAN COMMUNICATION ERROR , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| U0028 | Heater Control Panel Communication Error | Communication with heater control panel is faulty. Displays current malfunction only. | Refer to , DTC U0028 HEATER CONTROL PANEL COMMUNICATION ERROR , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1641 | Refrigerant Flow Sensor Circuit Short | Refrigerant flow sensor circuit is shorted. | Displays current malfunction only. Refer to , DTC B1641 REFRIGERANT FLOW SENSOR CIRCUIT SHORT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1642 | Refrigerant Flow Sensor Circuit Open | Refrigerant flow sensor circuit is open. | Displays current malfunction only. Refer to , DTC B1642 REFRIGERANT FLOW SENSOR CIRCUIT OPEN , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| B1643 | Variable Flow Change Solenoid Duty Circuit abnormal | Variable flow change solenoid duty circuit is open or shorted. | Displays current malfunction only. Refer to , DTC B1643 VARIABLE FLOW CHANGE SOLENOID DUTY CIRCUIT ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |
| 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 , Diagnostic Procedure with Diagnostic Trouble Code (DTC). |