Note
If the battery voltage is low, the following functions may not operate. When "Operation of Electrical items Restricted" is displayed on the multi-information display in the combination meter assembly, perform troubleshooting according to the How to Proceed with Troubleshooting procedures for the charging system.
If the battery voltage is low, seat heater system (w/ Seat Heater System), heated steering wheel system (w/ Steering Heater), rear air conditioning system (w/ Rear Control Switch) and climate control seat system (w/ Climate Control Seat System) may not operate. When "High Power Consumption Partial Limit On AC/Heater Operation." is displayed on the multi-information display in the combination meter assembly, inspect the battery, referring to On-vehicle Inspection for the charging system.
Tech Tips
If the battery voltage is low, "Operation Limitation Control History Count (Level 1)" and "Operation Limitation Control History Count (Level 2) is counted.
Seat heater system (w/ Seat Heater System)
If the seat heater system does not operate normally, refer to the troubleshooting.
Heated steering wheel system (w/ Steering Heater)
If the heated steering wheel system does not operate normally, refer to the troubleshooting.
Rear air conditioning system (w/ Rear Control Switch)
If the rear air conditioning system does not operate normally, refer to the troubleshooting.
Tech Tips
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.
*4: Even when all the inspected areas are normal, the system may not change to the driver seat control mode due to the ambient temperature, etc. Also, even if the front passenger seat is unoccupied, the system may not change to the driver seat control mode due to control conditions.
| Symptom | Suspected Area | Link |
|---|---|---|
| All functions of the A/C system do not operate | IG power source circuit | |
| CAN communication system (for LHD) | ||
| CAN communication system (for RHD) | ||
| Multi-display (for 8 Inch) | ||
| Accessory meter assembly (for 12.3 Inch) | ||
| Radio receiver assembly | ||
| Air conditioning amplifier assembly | ||
| Harness or connector | - | |
| Switch operation of multi-display (for 8 Inch) or accessory meter assembly (for 12.3 Inch) is not accepted. | Navigation system (w/ Navigation System) | |
| Audio and visual system (w/o Navigation System) (for 8 Inch) | ||
| Audio and visual system (w/o Navigation System) (for 12.3 Inch) | ||
| CAN communication system (for LHD) | ||
| CAN communication system (for RHD) | ||
| Multi-display (for 8 Inch) | ||
| Accessory meter assembly (for 12.3 Inch) | ||
| Radio receiver assembly | ||
| Air conditioning amplifier assembly | ||
| Harness or connector | - | |
| Switch operation of radio receiver assembly is not accepted. | CAN communication system (for LHD) | |
| CAN communication system (for RHD) | ||
| Radio receiver assembly | ||
| Air conditioning amplifier assembly | ||
| Harness or connector | - | |
| Switch operation of rear control switch is not accepted*1 | Check rear air conditioning operation canceled from multi-display (for 8 Inch) or accessory meter assembly (for 12.3 Inch) | - |
| LIN communication circuit | ||
| Rear control switch | ||
| Air conditioning amplifier assembly | ||
| Air flow control: No blower operation | Blower motor circuit | |
| CAN communication system (for LHD) | ||
| CAN communication system (for RHD) | ||
| Multi-display (for 8 Inch) | ||
| Accessory meter assembly (for 12.3 Inch) | ||
| Radio receiver assembly | ||
| Air conditioning amplifier assembly | ||
| Harness or connector | - | |
| Air flow control: No blower control | Blower motor circuit | |
| CAN communication system (for LHD) | ||
| CAN communication system (for RHD) | ||
| Radio receiver assembly | ||
| Air conditioning amplifier assembly | ||
| Harness or connector | - | |
| Temperature control: Cooling effectiveness is poor | ECO drive mode cancel | - |
| Refrigerant volume (for HFC-134a(R134a)) | ||
| Refrigerant volume (for HFO-1234yf(R1234yf)) | ||
| Refrigerant pressure (for HFC-134a(R134a)) | ||
| Refrigerant pressure (for HFO-1234yf(R1234yf)) | ||
| Cooler expansion valve | ||
| Air mix damper control servo motor circuit (for driver side upper layer side) | ||
| Air mix damper control servo motor circuit (for front passenger upper layer side) | ||
| Air mix damper control servo motor circuit (for driver side lower layer side) | ||
| Air mix damper control servo motor circuit (for front passenger lower layer side) | ||
| Air mix damper control servo motor circuit (for rear side)*1 | ||
| Evaporator temperature sensor circuit | ||
| Temperature control: Cooling effectiveness is poor | Room temperature sensor circuit | |
| Ambient temperature sensor circuit | ||
| Compressor with pulley assembly | ||
| No. 2 air conditioning radiator damper servo sub-assembly (driver side upper air mix) | ||
| No. 2 air conditioning radiator damper servo sub-assembly (front passenger side upper air mix) | ||
| No. 4 air conditioning radiator damper servo sub-assembly (for LHD) | ||
| No. 3 air conditioning radiator damper servo sub-assembly (drive side lower air mix) (for RHD) | ||
| No. 3 air conditioning radiator damper servo sub-assembly (front passenger side lower air mix) (for LHD) | ||
| No. 4 air conditioning radiator damper servo sub-assembly (for RHD) | ||
| No. 3 air conditioning radiator damper servo sub-assembly (rear side air mix)*1 | ||
| Air conditioning harness assembly | ||
| Air conditioning amplifier assembly | ||
| Temperature control: No cool air comes out | CAN communication system (for LHD) | |
| CAN communication system (for RHD) | ||
| Refrigerant volume (for HFC-134a(R134a)) | ||
| Refrigerant volume (for HFO-1234yf(R1234yf)) | ||
| Refrigerant pressure (for HFC-134a(R134a)) | ||
| Refrigerant pressure (for HFO-1234yf(R1234yf)) | ||
| Cooler expansion valve | ||
| Air conditioning pressure sensor circuit | ||
| Compressor solenoid circuit | ||
| Air conditioning harness communication circuit | ||
| Air mix damper control servo motor circuit (for driver side upper layer side) | ||
| Air mix damper control servo motor circuit (for front passenger upper layer side) | ||
| Air mix damper control servo motor circuit (for driver side lower layer side) | ||
| Air mix damper control servo motor circuit (for front passenger lower layer side) | ||
| Air mix damper control servo motor circuit (for rear side)*1 | ||
| Evaporator temperature sensor circuit | ||
| Temperature control: No cool air comes out | Room temperature sensor circuit | |
| Ambient temperature sensor circuit | ||
| Radio receiver assembly | ||
| Multi-display (for 8 Inch) | ||
| Accessory meter assembly (for 12.3 Inch) | ||
| Harness or connector | - | |
| No. 2 air conditioning radiator damper servo sub-assembly (driver side upper air mix) | ||
| No. 2 air conditioning radiator damper servo sub-assembly (front passenger side upper air mix) | ||
| No. 4 air conditioning radiator damper servo sub-assembly (for LHD) | ||
| No. 3 air conditioning radiator damper servo sub-assembly (drive side lower air mix) (for RHD) | ||
| No. 3 air conditioning radiator damper servo sub-assembly (front passenger side lower air mix) (for LHD) | ||
| No. 4 air conditioning radiator damper servo sub-assembly (for RHD) | ||
| No. 3 air conditioning radiator damper servo sub-assembly (rear side air mix)*1 | ||
| Air conditioning harness assembly | ||
| Air conditioning amplifier assembly | ||
| ECM | ||
| Temperature control: No warm air comes out | CAN communication system (for LHD) | |
| CAN communication system (for RHD) | ||
| Air conditioning harness communication circuit | ||
| Air mix damper control servo motor circuit (for driver side upper layer side) | ||
| Air mix damper control servo motor circuit (for front passenger upper layer side) | ||
| Air mix damper control servo motor circuit (for driver side lower layer side) | ||
| Air mix damper control servo motor circuit (for front passenger lower layer side) | ||
| Air mix damper control servo motor circuit (for rear side)*1 | ||
| Evaporator temperature sensor circuit | ||
| Room temperature sensor circuit | ||
| Ambient temperature sensor circuit | ||
| Radio receiver assembly | ||
| Multi-display (for 8 Inch) | ||
| Accessory meter assembly (for 12.3 Inch) | ||
| Temperature control: No warm air comes out | No. 2 air conditioning radiator damper servo sub-assembly (driver side upper air mix) | |
| No. 2 air conditioning radiator damper servo sub-assembly (front passenger side upper air mix) | ||
| No. 4 air conditioning radiator damper servo sub-assembly (for LHD) | ||
| No. 3 air conditioning radiator damper servo sub-assembly (drive side lower air mix) (for RHD) | ||
| No. 3 air conditioning radiator damper servo sub-assembly (front passenger side lower air mix) (for LHD) | ||
| No. 4 air conditioning radiator damper servo sub-assembly (for RHD) | ||
| No. 3 air conditioning radiator damper servo sub-assembly (rear side air mix)*1 | ||
| Harness or connector | - | |
| Air conditioning harness assembly | ||
| Air conditioning amplifier assembly | ||
| ECM | ||
| Temperature control: Output air is warmer or cooler than the set temperature or response is slow | CAN communication system (for LHD) | |
| CAN communication system (for RHD) | ||
| Refrigerant volume (for HFC-134a(R134a)) | ||
| Refrigerant volume (for HFO-1234yf(R1234yf)) | ||
| Refrigerant pressure (for HFC-134a(R134a)) | ||
| Refrigerant pressure (for HFO-1234yf(R1234yf)) | ||
| Solar sensor circuit (for driver side) | ||
| Solar sensor circuit (for front passenger side) | ||
| Room temperature sensor circuit | ||
| Ambient temperature sensor circuit | ||
| Air mix damper control servo motor circuit (for driver side upper layer side) | ||
| Air mix damper control servo motor circuit (for front passenger upper layer side) | ||
| Air mix damper control servo motor circuit (for driver side lower layer side) | ||
| Air mix damper control servo motor circuit (for front passenger lower layer side) | ||
| Temperature control: Output air is warmer or cooler than the set temperature or response is slow | Air mix damper control servo motor circuit (for rear side)*1 | |
| Radio receiver assembly | ||
| Multi-display (for 8 Inch) | ||
| Accessory meter assembly (for 12.3 Inch) | ||
| Harness or connector | - | |
| No. 2 air conditioning radiator damper servo sub-assembly (driver side upper air mix) | ||
| No. 2 air conditioning radiator damper servo sub-assembly (front passenger side upper air mix) | ||
| No. 4 air conditioning radiator damper servo sub-assembly (for LHD) | ||
| No. 3 air conditioning radiator damper servo sub-assembly (drive side lower) (for RHD) | ||
| No. 3 air conditioning radiator damper servo sub-assembly (front passenger side lower air mix) (for LHD) | ||
| No. 4 air conditioning radiator damper servo sub-assembly (for RHD) | ||
| No. 3 air conditioning radiator damper servo sub-assembly (rear side air mix)*1 | ||
| Harness or connector | - | |
| Air conditioning harness assembly | ||
| Air conditioning amplifier assembly | ||
| Temperature control: No temperature control (only LO or HI) | Room temperature sensor circuit | |
| Ambient temperature sensor circuit | ||
| CAN communication system (for LHD) | ||
| CAN communication system (for RHD) | ||
| Radio receiver assembly | ||
| Multi-display (for 8 Inch) | ||
| Accessory meter assembly (for 12.3 Inch) | ||
| Harness or connector | - | |
| Air conditioning amplifier assembly | ||
| No air inlet control | CAN communication system (for LHD) | |
| CAN communication system (for RHD) | ||
| Air conditioning harness communication circuit | ||
| Air inlet damper control servo motor circuit | ||
| Exhaust gas sensor circuit*3 | ||
| Emission gas NOx sensor circuit*3 | ||
| Radio receiver assembly | ||
| No. 1 blower damper servo sub-assembly | ||
| Air conditioning harness assembly | ||
| Air conditioning amplifier assembly | ||
| Blower vent temperature is different on the right and left sides even though the set temperature is the same for both sides | Air mix damper control servo motor circuit (for driver side upper layer side) | |
| Air mix damper control servo motor circuit (for front passenger upper layer side) | ||
| Solar sensor circuit (for driver side) | ||
| Solar sensor circuit (for front passenger side) | ||
| No. 2 air conditioning radiator damper servo sub-assembly (driver side upper air mix) | ||
| No. 2 air conditioning radiator damper servo sub-assembly (front passenger side upper air mix) | ||
| Air conditioning harness assembly | ||
| Air conditioning amplifier assembly | ||
| No air flow mode control | CAN communication system (for LHD) | |
| CAN communication system (for RHD) | ||
| Air conditioning harness communication circuit | ||
| Air outlet damper control servo motor circuit (for defroster side) | ||
| Air outlet damper control servo motor circuit (for front side*2 or front LH side*1) | ||
| Air outlet damper control servo motor circuit (for front RH side)*1 | ||
| Air outlet damper control servo motor circuit (for foot side*2 or rear side*1) | ||
| Radio receiver assembly | ||
| Multi-display (for 8 Inch) | ||
| Accessory meter assembly (for 12.3 Inch) | ||
| Harness or connector | - | |
| No. 1 air conditioning radiator damper servo sub-assembly | ||
| No. 5 air conditioning radiator damper servo sub-assembly*1 | ||
| No. 6 air conditioning radiator damper servo sub-assembly*2 | ||
| No. 7 air conditioning radiator damper servo sub-assembly | ||
| Air conditioning harness assembly | ||
| Air conditioning amplifier assembly | ||
| ECO drive mode switch (combination switch assembly) does not operate normally | ECO drive mode switch circuit | |
| Diagnostic trouble codes are not recorded. Set mode is cleared when engine switch is off | Back-up power source circuit | |
| Air conditioning amplifier assembly | ||
| Save energy and air flow mode does not operate normally*4 | CAN communication system (for LHD) | |
| CAN communication system (for RHD) | ||
| Radio receiver assembly | ||
| Air conditioning amplifier assembly | ||
| Seat belt warning system |
*1: w/ Rear Control Switch
*2: w/o Rear Control Switch
*3: w/ Smog Ventilation Sensor