Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Front Window Fogging

Toyota Corolla Cross (2022-2024) Service Manual / Vehicle Interior / Heating / Air Conditioning / Air Conditioning System (for Gasoline Model With Manual Air Conditioning System) / Front Window Fogging

DESCRIPTION

If the windshield frequently fogs up even though the air conditioning system is operating, the following factors may be the cause.

Symptom

Factor

Windshield frequently fogs up
  • Compressor with pulley assembly malfunction
  • Refrigerant volume (low)
  • Cooler expansion valve (opened excessively)
  • No. 1 air conditioning radiator damper servo sub-assembly malfunction
  • Mechanical locking of damper and damper link

PROCEDURE

1.

PERFORM REFRIGERANT SHORTAGE CHECK

(a) Perform the Utility according to the display on the GTS.

Body Electrical > Air Conditioner > Utility

Tester Display

Refrigerant Gas Volume Check

(b) Check that the following conditions are met and perform the refrigerant shortage check according to the display on the GTS.

Measurement Condition:

Item

Condition

A/C switch

On

Ambient temperature*

0 to 49°C (32 to 120°F)

Blower speed

HI

*: If the ambient temperature is not within the range shown, do not perform this check.

Result

Amount of Refrigerant

Refrigerant correct

Correct

Refrigerant shortage

Insufficient

OK:

"Refrigerant correct" is displayed on the GTS.

NG

CHARGE SYSTEM WITH REFRIGERANT

OK

2.

CHECK OPERATION

(a) Press the front defroster switch on the air conditioning control assembly and check that the air outlet mode changes to DEF mode.

OK:

The air outlet mode changes to DEF mode.

OK

INSPECT REFRIGERANT PRESSURE WITH MANIFOLD GAUGE SET

NG

GO TO DTC B14037F

    READ NEXT:

     Blower Motor does not Operate

    DESCRIPTION If air does not flow from the front registers after the blower switch on the air conditioning control assembly is operated, the following factors may be the cause. Symptom Factor

     Weak Blower Output

    DESCRIPTION If the airflow from the front registers is weak regardless of the blower speed setting displayed on the air conditioning control assembly, the following factors may be the cause. Sym

     Recirculated/Fresh Air Modes Switch without User Input

    DESCRIPTION If recirculation/fresh mode changes unintentionally and without permission, the following causes are possible. Symptom Factor Recirculation/fresh mode changes without

    SEE MORE:

     Terminals Of Ecu

    TERMINALS OF ECU REAR TELEVISION CAMERA ASSEMBLY (a) Disconnect the rear television camera assembly connector. (b) Measure the voltage on the wire harness side connector according to the value(s) in the table below. Terminal No. (Symbol) Terminal Description

     System Malfunction Message is Displayed on the Multi-information Display

    SYSTEM DESCRIPTION If an abnormal vehicle speed information is detected by the certification ECU (smart key ECU assembly), a system malfunction message is displayed on the multi-information display. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: When using the GTS with the ignition switch o

    © 2020-2024 Copyright www.tcorollacross.com