AIR CONDITIONING SYSTEM DIAGNOSTIC TROUBLE CODE CHART

AIR CONDITIONING SYSTEM
DTC No.	Detection Item	DTC Detection Condition	Link
B1411/11	Room Temperature Sensor Circuit	Open or short in room temperature sensor circuit	Click here
B1412/12	Ambient Temperature Sensor Circuit	Open or short in ambient temperature sensor circuit	Click here
B1413/13	Evaporator Temperature Sensor Circuit	Open or short in evaporator temperature sensor circuit	Click here
B1423/23	Pressure Sensor Circuit	Open or short in air conditioner pressure sensor circuit Refrigerant pressure on high pressure side is extremely low (176 kPa (1.8 kgf/cm², 26 psi) or less) or extremely high (3025 kPa (30.8 kgf/cm², 439 psi) or more)	Click here
B1441/41	Air Mix Damper Control Servo Motor Circuit (Passenger Side)	Air mix damper position sensor value does not change even if air conditioning amplifier assembly operates No. 2 air conditioning radiator damper servo sub-assembly (front passenger side upper air mix)	Click here
B1442/42	Air Inlet Damper Control Servo Motor Circuit	Air inlet damper position sensor value does not change even if air conditioning amplifier assembly operates No. 1 blower damper servo sub-assembly	Click here
B1443/43	Air Outlet Damper Control Servo Motor Circuit	Air outlet damper position sensor value does not change even if air conditioning amplifier assembly operates No. 3 air conditioning radiator damper servo sub-assembly	Click here
B1446/46	Air Mix Damper Control Servo Motor Circuit (Driver Side)	Air mix damper position sensor value does not change even if air conditioning amplifier assembly operates No. 2 air conditioning radiator damper servo sub-assembly (driver side upper air mix)	Click here
B1449/49	Rear Air Outlet Damper Control Servo Motor Circuit	Rear air outlet damper position sensor value does not change even if air conditioning amplifier assembly operates No. 6 air conditioning radiator damper servo sub-assembly	Click here
B1453/53	Driver Side Air Outlet Damper COOL Control Servo Motor Circuit	Air mix damper position sensor value does not change even if air conditioning amplifier assembly operates No. 5 air conditioning radiator damper servo sub-assembly (driver side lower air mix)2 or No. 4 air conditioning radiator damper servo sub-assembly (driver side lower air mix)3	Click here
B1454/54	Passenger Side Air Outlet Damper COOL Control Servo Motor Circuit	Air mix damper position sensor value does not change even if air conditioning amplifier assembly operates No. 4 air conditioning radiator damper servo sub-assembly (front passenger side lower air mix)2 or No. 5 air conditioning radiator damper servo sub-assembly (front passenger side lower air mix)3	Click here
B1455/55	Driver Side Air Outlet Damper FOOT/DEF Control Servo Motor Circuit	Air outlet damper position sensor value does not change even if air conditioning amplifier assembly operates No. 1 air conditioning radiator damper servo sub-assembly	Click here
B1471/71	A/C Inverter High Voltage Power Resource System Malfunction	Open or short in A/C inverter high voltage power resource system Boost inverter is broken or malfunctioning	Click here
B1472/72	A/C Inverter High Voltage Output System Malfunction	Open or short in A/C inverter high voltage output system	Click here
B1473/73	A/C Inverter Start-up Signal System Malfunction	Open or short in A/C inverter start-up signal system	Click here
B1474/74	A/C Inverter Malfunction	A/C inverter malfunction	Click here
B1475/75	A/C Inverter Cooling / Heating System Malfunction	Temperature of the A/C inverter is outside the specified range (temperature is too high), or there is an open or short to ground in the temperature sensor circuit	Click here
B1476/76	A/C Inverter Load System Malfunction	Motor rotation load while the compressor is operating is too large or too small	Click here
B1477/77	A/C Inverter Low Voltage Power Resource System Malfunction	An open or short to ground in the inverter control power voltage circuit	Click here
B1497/97	BUS IC Communication Malfunction	Error or open in communication line	Click here
B1498/98	Communication Malfunction (A/C Inverter Local)	Communication line error or open between the power management control ECU and compressor with motor assembly High-voltage power source is shut off	Click here
B14B2	Lost Communication with Front Panel LIN	Lost communication with air conditioning control assembly	Click here
B14B8	Refrigerant Shortage	When following condition is detected in refrigerant shortage check in normal operation: Amount of refrigerant is insufficient	Click here
P0AA6-611	Hybrid Battery Voltage System Isolation Fault	High voltage system insulation malfunction	Click here
U0131	Lost Communication with Electric Power Steering ECU	No communication with power steering ECU assembly	Click here
U0142	Lost Communication with Main Body ECU	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 Combination Meter	No communication with combination meter assembly	Click here
U0163	Lost Communication with Navigation Control Module	No communication with radio receiver assembly	Click here
U0293	Lost Communication with HV ECU	No communication with power management control ECU	Click here