Recirculated/Fresh Air Modes do not Switch [06/2018 - 08/2020]: Procedure

1. Check that the No. 1 blower damper servo sub-assembly is installed correctly.

   OK

   The No. 1 blower damper servo sub-assembly is installed correctly.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

INSTALL NO. 1 BLOWER DAMPER SERVO SUB-ASSEMBLY CORRECTLY. Refer to  REASSEMBLY [06/2018 - ] 

Result: 

OK 

See step  2

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Air Conditioner / Trouble Codes.
5. Check for DTCs.

   Body Electrical > Air Conditioner > Trouble Codes 

   Result

   Result	Proceed to
   B1442 is not output	A
   B1442 is output	B

Result: 

B 

GO TO DTC B1442. Refer to  DTC B1442: Air Inlet Damper Control Servo Motor [06/2018 - ]  

Result: 

A 

See step  3

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Engine / Data List.
5. Read the Data List according to the display on the Techstream.

   Powertrain > Engine > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Coolant Temperature	Engine coolant temperature	Min.: -40°C (-40°F), Max.: 140°C (284°F)	75 to 100°C (167 to 212°F): After warming up	This is the engine coolant temperature. HINT:  After warming up the engine, the engine coolant temperature will be 75 to 100°C (167 to 212°F). After a long soak, the engine coolant temperature, intake air temperature and ambient air temperature will be approximately equal. If the value is -40°C (-40°F), or higher than 135°C (275°F), the sensor circuit is open or shorted. Check if the engine overheats if the value indicated is higher than 135°C (275°F).

   Powertrain > Engine > Data List 

   Tester Display
   Coolant Temperature

   OK

   After warming up the engine, the temperature value displayed is within the range specified in the normal condition column.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO COOLING SYSTEM. Refer to  ON-VEHICLE INSPECTION [06/2018 - ] 

Result: 

OK 

See step  4

1. Remove the smog ventilation sensor.

   Refer to REMOVAL [06/2018 - ]

2. Inspect the smog ventilation sensor.

   Refer to INSPECTION [06/2018 - ]

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE AIR CONDITIONER UNIT ASSEMBLY. Refer to  REMOVAL [06/2018 - 08/2020] 

Result: 

NG 

REPLACE SMOG VENTILATION SENSOR. Refer to  REMOVAL [06/2018 - ]