AIR CONDITIONING SYSTEM DIAGNOSTIC TROUBLE CODE CHART

AIR CONDITIONING SYSTEM
DTC No.	Detection Item	DTC Detection Condition	Link
B1411	Room Temperature Sensor Circuit	Diagnosis condition: Ambient temperature is -30°C (-22°F) or more Malfunction status: Open or short in room temperature sensor circuit Detection time: None (Present malfunction), continuously for 4 seconds or more (Past malfunction)	Click here
B1412	Ambient Temperature Sensor Circuit	Diagnosis condition: None Malfunction status: Open or short in ambient temperature sensor circuit Detection time: None (Present malfunction), continuously for 4 seconds or more (Past malfunction)	Click here
B1413	Evaporator Temperature Sensor Circuit	Diagnosis condition: None Malfunction status: Open or short in evaporator temperature sensor circuit Detection time: None (Present malfunction), continuously for 4 seconds or more (Past malfunction)	Click here
B1418	Emission Gas Sensor Circuit	Diagnosis condition: None Malfunction status: Short in smog ventilation sensor circuit (HC, CO) Detection time: Continuously for 4 seconds or more (Present malfunction), although only when the engine switch off → on (IG) continuously 28 seconds or more	Click here
B1423	Pressure Sensor Circuit	Diagnosis condition: engine switch on (IG) Malfunction Status: Refrigerant pressure signal malfunction Detection time: Continuously for 4 seconds or more (Present malfunction)	Click here
B1441	Air Mix Damper Control Servo Motor Circuit (Passenger Side)	Diagnosis condition: During No. 2 air conditioning radiator damper servo sub-assembly (front passenger side upper air mix) operation Malfunction status: The damper servo operation request signal is output but the position information of the servo does not change or servo is malfunctioning Detection time: Continuously for 30 seconds or more	Click here
B1442	Air Inlet Damper Control Servo Motor Circuit	Diagnosis condition: During No. 1 blower damper servo sub-assembly operation Malfunction status: The damper servo operation request signal is output but the position information of the servo does not change or servo is malfunctioning Detection time: Continuously for 30 seconds or more	Click here
B1443	Air Outlet Damper Control Servo Motor Circuit	Diagnosis condition: During No. 3 air conditioning radiator damper servo sub-assembly (MODE FACE) (for LHD) or No. 1 air conditioning radiator damper servo sub-assembly (MODE FACE) (for RHD) operation Malfunction status: The damper servo operation request signal is output but the position information of the servo does not change or ervo is malfunctioning Detection time: Continuously for 30 seconds or more	Click here
B1446	Air Mix Damper Control Servo Motor Circuit (Driver Side)	Diagnosis condition: No. 1 air conditioning radiator damper servo sub-assembly (driver side upper air mix) (for LHD) or No. 4 air conditioning radiator damper servo sub-assembly (driver side upper air mix) (for RHD) operation Malfunction status: The damper servo operation request signal is output but the position information of the servo does not change or servo is malfunctioning Detection time: Continuously for 30 seconds or more	Click here
B144A	Air Outlet DEF Damper Control Servo Motor Circuit	Diagnosis condition: No. 4 air conditioning radiator damper servo sub-assembly (MODE DEF) (for LHD) or No. 3 air conditioning radiator damper servo sub-assembly (MODE DEF) (for RHD) operation Malfunction status: The damper servo operation request signal is output but the position information of the servo does not change or servo is malfunctioning Detection time: Continuously for 30 seconds or more	Click here
B1451	Compressor Solenoid Circuit	Diagnosis condition: During compressor assembly with pulley operation Malfunction status: Open or short in compressor solenoid circuit Detection time: Continuously for 30 seconds or more	Click here
B1453	Air Outlet Damper Cool Control Servo Motor Circuit (Driver Side)	Diagnosis condition: No. 1 air conditioning radiator damper servo sub-assembly (driver side lower air mix) (for LHD) or No. 4 air conditioning radiator damper servo sub-assembly (driver side lower air mix) (for RHD) operation Malfunction status: The damper servo operation request signal is output but the position information of the servo does not change or servo is malfunctioning Detection time: Continuously for 30 seconds or more	Click here
B1454	Air Outlet Damper Cool Control Servo Motor Circuit (Passenger Side)	Diagnosis condition: During No. 2 air conditioning radiator damper servo sub-assembly (front passenger side lower air mix) operation Malfunction status: The damper servo operation request signal is output but the position information of the servo does not change or servo is malfunctioning Detection time: Continuously for 30 seconds or more	Click here
B1455	Air Outlet Damper FOOT/DEF Control Servo Motor Circuit (Passenger Side)	Diagnosis condition: During No. 3 air conditioning radiator damper servo sub-assembly (MODE FOOT) (for LHD) or the No. 1 air conditioning radiator damper servo sub-assembly (MODE FOOT) (for RHD) operation Malfunction status: The damper servo operation request signal is output but the position information of the servo does not change or ervo is malfunctioning Detection time: Continuously for 30 seconds or more	Click here
B1461	Emission Gas NOx Sensor Circuit	Diagnosis condition: None Malfunction status: Short in smog ventilation sensor circuit Detection time: Continuously for 4 seconds or more (Present malfunction), although only when the engine switch off → on (IG) continuously 28 seconds or more	Click here
B1497	Communication Malfunction (Bus Ic)	Diagnosis condition: None Malfunction status: Error or open in communication line between air conditioning amplifier assembly and servo motor	Click here
B14A8	Glass Temperature Sensor Circuit	Diagnosiscondition: Engine switch on (IG) Malfunctionstatus: Communication between rain sensor (galss humidity sensor) and main body ECU (multiplex network body ECU) is abnormal or stops Detection time: Continuously for 5 seconds or more after turning engine switch on (IG) after progress 10 seconds.	Click here
B14A9	Glass Surroundings Temperature Sensor Circuit	Diagnosiscondition: Engine switch on (IG) Malfunctionstatus: Communication between rain sensor (galss humidity sensor) and main body ECU (multiplex network body ECU) is abnormal or stops Detection time: Continuously for 5 seconds or more after turning engine switch on (IG) after progress 10 seconds.	Click here
B14AA	Glass Humidity Sensor Circuit	Diagnosiscondition: Engine switch on (IG) Malfunctionstatus: Communication between rain sensor (galss humidity sensor) and main body ECU (multiplex network body ECU) is abnormal or stops Detection time: Continuously for 5 seconds or more after turning engine switch on (IG) after progress 10 seconds.	Click here
B14B2	Lost Communication with Front Panel LIN	Lost communication with air conditioning control assembly Diagnosis condition: Engine switch on (IG) Malfunction status: Lost communication with integration control and panel assembly Detection time: Continuously for 10 seconds or more	Click here
B14B8	Refrigerant Shortage	Diagnosis condition: At the time of quantity of refrigerant opinion on infringement condition establishment by the ordinary control Malfunction status: When following condition is detected in refrigerant shortage check in normal operation; Amount of refrigerant is insufficient Detection time: During air conditioning system operation for 10 minutes or more	Click here
B14B9	Open in Ion Generator Circuit	Diagnosis condition: Engine switch on (IG), blower switch on, ion generator switch on Malfunction status: Open or short in ion generation circuit Detection time: Continuously for 12 seconds or more	Click here
U0100	Lost Communication with ECM / PCM "A"	No communication with ECM	Click here
U0131	Lost Communication with Power Steering Control Module	No communication with power steering ECU assembly	Click here
U0142	Lost Communication with Body Control Module "B"	No communication with main body ECU (multiplex network body ECU)	Click here
U0151	Lost Communication with Restraints Control Module	No communication with airbag sensor assembly	Click here
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	No communication with combination meter assembly	Click here
U0163	Lost Communication with Navigation Control Module	No communication with radio receiver assembly	Click here