Weak Blower Output [11/2018 - ]: Procedure

1. Prepare the vehicle according to the table below in manual mode.

   Blower Switch	Condition
   LO → HI	Temperature setting: Max COLD Mode switch: FACE A/C switch: Off

   OK

   Airflow volume is changed.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO BLOWER MOTOR CIRCUIT. Refer to  Blower Motor Circuit [11/2018 - 02/2019]  , or refer to  Blower Motor Circuit [02/2019 - ]  

Result: 

OK 

See step  2

1. Confirm setup of the ECO drive mode and turn it off if it is on.

   HINT: 

   • When ECO drive mode is on, the air conditioning amplifier assembly ensures a minimum level of air conditioning control based on certain conditions, thereby contributing to improved fuel efficiency. Accordingly, explain to customers that the air volume will be weaker in these situations.

     Control	Control Summary
     Airflow Control	Automatically switches the air inlet port to the internal air circulation mode when the outside air temperature is equal to or higher than a predetermined temperature and reduces the power consumption.
     Air Inlet Control	Sets the blower level in AUTO mode lower than normal, and suppresses the power consumption.

   • If integration control and panel assembly (ECO switch) is malfunctioning, perform diagnosis on the ECO switch circuit.

     Refer to ECO Switch Circuit [11/2018 - 02/2019] , or refer to ECO Switch Circuit [02/2019 - ] 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  3

1. Visually check the clean air filter.

   OK

   The clean air filter is not dirty or clogging.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE CLEAN AIR FILTER. Refer to  DISASSEMBLY [11/2018 - ] 

Result: 

OK 

See step  4

1. Check the installation condition of the No. 1 cooler thermistor.

   OK

   No. 1 cooler thermistor is installed correctly.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REINSTALL NO. 1 COOLER THERMISTOR. Refer to  INSTALLATION [11/2018 - 02/2019]  , or refer to  INSTALLATION [02/2019 - 08/2020]  , or refer to  INSTALLATION [08/2020 - ] 

Result: 

OK 

See step  5

1. Check the installation condition of the aspirator.

   OK

   Aspirator is installed correctly.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE HEATER RADIATOR UNIT SUB-ASSEMBLY OR NO. 1 COOLER EVAPORATOR (HEATER RADIATOR UNIT SUB-ASSEMBLY OR NO. 1 COOLER EVAPORATOR WAS CLOGGING) 

Result: 

NG 

REINSTALL ASPIRATOR. Refer to  REASSEMBLY [11/2018 - 02/2019]  , or refer to  REASSEMBLY [02/2019 - 08/2020]  , or refer to  REASSEMBLY [08/2020 - ]