RM3660EC _58 Vehicle Interior _080733 HEATING / AIR CONDITIONING _0598792 AIR CONDITIONING SYSTEM(for HV Model (8ZR-FXE)) J

HEATING / AIR CONDITIONING  AIR CONDITIONING SYSTEM(for HV Model (8ZR-FXE))  Recirculated/Fresh Air Modes do not Switch  


DESCRIPTION

If the air inlet mode cannot be changed between recirculation/fresh or exhaust gas odors can be smelled even though recirculation mode is selected, the following factors may be the cause.

Symptom Factor
·

Air inlet mode cannot be changed between recirculation/fresh

·

Exhaust gas odors can be smelled when air inlet mode set to recirculation mode


·

No. 1 blower damper servo sub-assembly malfunction

·

Damper link disconnection

·

Air inlet damper mechanically locked

·

Air conditioner unit assembly malfunction

·

Engine coolant temperature (high)



PROCEDURE

1.CHECK NO. 1 BLOWER DAMPER SERVO SUB-ASSEMBLY
a.

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

OK:

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



Result:
Proceed to
OK
NG



OK

2.CHECK FOR DTC

NG

REINSTALL NO. 1 BLOWER DAMPER SERVO SUB-ASSEMBLY

Click hereVehicle Interior>HEATING / AIR CONDITIONING>BLOWER UNIT>REASSEMBLY


2.CHECK FOR DTC
a.

Check for DTCs.

Body Electrical > Air Conditioner > Trouble Codes
50001 450

Result:
Result Proceed to
B143B7F is not output A
B143B7F is output B



A

3.READ VALUE USING GTS

B

GO TO DTC B143B7F

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING SYSTEM (for HV Model (8ZR-FXE))>B143B7F


3.READ VALUE USING GTS
a.

Read the Data List according to the display on the GTS.

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
50003 372 205
OK:

The value of the display does not change frequently.



Result:
Proceed to
OK
NG



OK

REPLACE AIR CONDITIONER UNIT ASSEMBLY

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING UNIT (for HV Model)>REMOVAL


NG

GO TO COOLING SYSTEM

Click hereEngine / Hybrid System>8ZR-FXE (COOLING)>COOLING SYSTEM>ON-VEHICLE INSPECTION