AIR CONDITIONING SYSTEM > DIAGNOSTIC TROUBLE CODE CHART

for Preparation Click here

Air Conditioning System
DTC Code	Detection Item	Trouble Area	Memory	Diagnostic Note	See page
B1411/11*2	Room Temperature Sensor Circuit	1. Room temperature sensor 2. Harness or connector between room temperature sensor and air conditioning amplifier assembly 3. Air conditioning amplifier assembly	Memorized (8.5 min. or more)	The air conditioning amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets.	Click here
B1412/12*3	Ambient Temperature Sensor Circuit	1. Ambient temperature sensor 2. Harness or connector between ambient temperature sensor and air conditioning amplifier assembly 3. Air conditioning amplifier assembly	Memorized (4 sec. or more)	The air conditioning amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets.	Click here
B1413/13	Evaporator Temperature Sensor Circuit	1. Evaporator temperature sensor 2. Air conditioning harness assembly 3. Air conditioning amplifier assembly	Memorized (4 sec. or more)	The air conditioning amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets.	Click here
B1423/23	Pressure Sensor Circuit	1. Air conditioning pressure sensor 2. Harness or connector between air conditioning pressure sensor and air conditioning amplifier assembly 3. Air conditioning amplifier assembly 4. Expansion valve (blocked, stuck) 5. Cooler condenser assembly (blocked, deterioration of cooling capacity due to dirt) 6. Cooler dryer (moisture in the refrigerant cycle cannot be absorbed) 7. Cooling fan system (condenser cannot be cooled down) 8. A/C system (leaks, blocked)	-	-	Click here
B1441/41	Air Mix Damper Control Servo Motor Circuit (Passenger Side)	1. Air mix control servo motor (for front passenger side) 2. Air conditioning harness assembly 3. Air conditioning amplifier assembly	Memorized (30 sec. or more)	The air conditioning amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets.	Click here
B1442/42	Air Inlet Damper Control Servo Motor Circuit	1. Air inlet control servo motor 2. Air conditioning harness assembly 3. Air conditioning amplifier assembly	Memorized (30 sec. or more)	The air conditioning amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets.	Click here
B1443/43	Air Outlet Damper Control Servo Motor Circuit	1. Air outlet control servo motor 2. Air conditioning harness assembly 3. Air conditioning amplifier assembly	Memorized (30 sec. or more)	The air conditioning amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets.	Click here
B1446/46	Air Mix Damper Control Servo Motor Circuit (Driver Side)	1. Air mix control servo motor (for driver side) 2. Air conditioning harness assembly 3. Air conditioning amplifier assembly	Memorized (30 sec. or more)	The air conditioning amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets.	Click here
B1471/71	A/C Inverter High Voltage Power Resource System Malfunction	1. Electric vehicle fuse 2. No. 2 engine wire (harness or connector between compressor with motor assembly and inverter with converter assembly) 3. Compressor with motor assembly 4. Hybrid control system 5. CAN communication system	Memorized	-	Click here
B1472/72	A/C Inverter High Voltage Output System Malfunction	1. Compressor with motor assembly 2. CAN communication system	Memorized	-	Click here
B1473/73	A/C Inverter Start-up Signal System Malfunction	1. Harness or connector between power management control ECU and compressor with motor assembly 2. Compressor with motor assembly 3. Hybrid control system 4. CAN communication system	-	-	Click here
B1474/74	A/C Inverter Malfunction	1. Compressor with motor assembly 2. CAN communication system	Memorized	-	Click here
B1475/75	A/C Inverter Cooling / Heating System Malfunction	1. Cooling fan system 2. Refrigerant volume 3. Compressor with motor assembly 4. CAN communication system	Memorized	-	Click here
B1476/76	A/C Inverter Load System Malfunction	1. Refrigerant volume 2. Compressor with motor assembly 3. Cooling fan system 4. CAN communication system	Memorized	-	Click here
B1477/77	A/C Inverter Low Voltage Power Resource System Malfunction	1. Compressor with motor assembly 2. CAN communication system	Memorized	-	Click here
B1497/97	BUS IC Communication Malfunction	1. Air conditioning harness assembly 2. Air conditioning amplifier assembly	Memorized (10 sec. or more)	The air conditioning amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets.	Click here
B1498/98	Communication Malfunction (A/C Inverter Local)	1. Harness or connector between power management control ECU, compressor with motor assembly and body ground 2. Power management control ECU 3. Compressor with motor assembly 4. No. 2 engine wire (harness or connector between compressor with motor assembly and inverter with converter assembly) 5. Electric vehicle fuse 6. CAN communication system 7. Hybrid control system	Memorized	-	Click here
B14A2	Driver Side Solar Sensor Short Circuit	1. Automatic light control sensor (solar sensor) 2. Harness or connector between automatic light control sensor (solar sensor) and air conditioning amplifier assembly 3. Harness or connector between automatic light control sensor (solar sensor) and main body ECU (multiplex network body ECU) 4. Main body ECU (multiplex network body ECU) 5. Air conditioning amplifier assembly	Memorized (4 sec. or more)	The air conditioning amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets.	Click here
B14A3	Front Passenger Side Solar Sensor Short Circuit	1. Automatic light control sensor (solar sensor) 2. Harness or connector between automatic light control sensor (solar sensor) and air conditioning amplifier assembly 3. Harness or connector between automatic light control sensor (solar sensor) and main body ECU (multiplex network body ECU) 4. Main body ECU (multiplex network body ECU) 5. Air conditioning amplifier assembly	Memorized (4 sec. or more)	The air conditioning amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets.	Click here
B14A8*1	Glass Temperature Sensor Circuit	1. Wire harness or connector 2. Air conditioning thermistor assembly (glass temperature sensor) 3. Air conditioning amplifier assembly	Memorized	The air conditioning amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets.	Click here
B14A9*1	Glass Surroundings Temperature Sensor Circuit	1. Wire harness or connector 2. Air conditioning thermistor assembly (glass surroundings temperature sensor) 3. Air conditioning amplifier assembly	Memorized	The air conditioning amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets.	Click here
B14AA*1	Glass Humidity Sensor Circuit	1. Wire harness or connector 2. Air conditioning thermistor assembly (glass humidity sensor) 3. Air conditioning amplifier assembly	Memorized	The air conditioning amplifier assembly stores the DTC of the respective malfunction if it has occurred for the period of time indicated in the brackets.	Click here
U0100	Lost Communication with ECM	1. CAN communication system 2. ECM	-	-	Click here
U0131	Lost Communication with Electric Power Steering ECU	1. CAN communication system 2. Electric power steering ECU	-	-	Click here
U0142	Lost Communication with Main Body ECU	1. CAN communication system 2. Main body ECU (multiplex network body ECU)	-	-	Click here
U0155	Lost Communication with Combination Meter	1. CAN communication system 2. Combination meter assembly	-	-	Click here
U0293	Lost Communication with HV ECU	1. CAN communication system 2. Power management control ECU	-	-	Click here

*1: w/ Air conditioning Thermistor Assembly
*2: If the cabin temperature is approx. -18.6°C (-1.48°F) or lower, DTC B1411/11 may be output even though the system is normal.
*3: If the ambient temperature is approx. -52.9°C (-63.22°F) or lower, DTC B1412/12 may be output even though the system is normal.

Hybrid Control System
DTC Code	Detection Item	Trouble Area	Memory	Diagnostic Note	See page
P0AA6-611	Hybrid Battery Voltage System Isolation Fault	1. Compressor oil 2. Refrigerant pipe line 3. Compressor with motor assembly 4. CAN communication system	-	-	Click here