Weak Blower Output [11/2023 - ]: Procedure

1. Confirm the area where the blower airflow volume is low.

   Result

   Result	Proceed to
   Front air conditioning unit	A
   Rear air conditioning unit	B

Result: 

B 

See step  7

Result: 

A 

See step  2

1. Operate the blower switch with the following conditions met and check that the airflow volume changes.

   Blower Speed	Condition
   LO → HI	Temperature setting: MAX COLD Air outlet mode: FACE A/C switch: Off

   OK

   Airflow volume increases.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO OTHER DIAGNOSIS PROCEDURE (Blower Motor Circuit). Refer to  Blower Motor Circuit [11/2023 - ]  

Result: 

OK 

See step  3

1. Confirm that ECO HEAT/COOL switch (radio and display receiver assembly) is set to off.
2. Confirm that ECO drive mode is set to off.

   HINT: 

   When the ECO drive mode is set to ON, the air conditioning amplifier assembly performs minimal air conditioning control in order to promote the improvement of fuel economy. Ensure that the customer understands that the airflow volume will be decreased compared to normal operation.

   Control	Control Summary
   Air Volume Control	Sets the blower level to less.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

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 [12/2019 - ] 

Result: 

OK 

See step  5

1. Check the installation condition of the evaporator temp. sensor (No. 1 cooler thermistor).

   OK

   Evaporator temp. sensor (No. 1 cooler thermistor) is installed correctly.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REINSTALL EVAPORATOR TEMP. SENSOR (NO. 1 COOLER THERMISTOR). Refer to  INSTALLATION [12/2019 - ] 

Result: 

OK 

See step  6

1. Check the installation condition of the aspirator pipe.

   OK

   The aspirator pipe is installed correctly.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE HEATER RADIATOR UNIT SUB-ASSEMBLY OR NO. 1 COOLER EVAPORATOR SUB-ASSEMBLY. Refer to  REMOVAL [11/2023 - ] 

Result: 

NG 

INSTALL ASPIRATOR PIPE. Refer to  REASSEMBLY [11/2023 - ] 

1. Operate the blower switch with the following conditions met and check that the airflow volume changes.

   Blower Speed	Condition
   LO → HI	Temperature setting: MAX COLD Air outlet mode: FACE A/C switch: Off

   OK

   Airflow volume increases.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO OTHER DIAGNOSIS PROCEDURE (Rear Blower Motor Circuit). Refer to  Rear Blower Motor Circuit [11/2023 - ]  

Result: 

OK 

See step  8

1. Confirm that ECO HEAT/COOL switch (radio and display receiver assembly) is set to off.
2. Confirm that ECO drive mode is set to off.

   HINT: 

   When the ECO drive mode is set to ON, the air conditioning amplifier assembly performs minimal air conditioning control in order to promote the improvement of fuel economy. Ensure that the customer understands that the airflow volume will be decreased compared to normal operation.

   Control	Control Summary
   Air Volume Control	Sets the blower level to less.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

REPLACE REAR EVAPORATOR SUB-ASSEMBLY. Refer to  DISASSEMBLY [12/2019 - ]