Toyota Camry (XV70): Front Window Fogging
DESCRIPTION
If the windshield frequently fogs up even though the air conditioning system is operating, the following suspected areas may be the cause.
|
Symptom | Factor |
|---|---|
|
Windshield frequently fogs up |
|
PROCEDURE
| 1. |
PERFORM PERFORM REFRIGERANT SHORTAGE |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Air Conditioner / Utility / Refrigerant Gas Volume Check.
Body Electrical > Air Conditioner > Utility|
Tester Display |
|---|
| Refrigerant Gas Volume Check |
(e) Check that the following conditions are met and perform the refrigerant shortage check according to the display on the Techstream.
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 Techstream.
| NG | .gif) | CHARGE SYSTEM WITH REFRIGERANT |
|
.gif)
| 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 B1443 |
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 suspected areas may be the cause.
Symptom F
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 suspected areas may be the cause.
Pressure Sensor Circuit
DESCRIPTION Based on signals from the air conditioner pressure sensor, the air conditioning amplifier assembly controls the compressor solenoid of the compressor assembly with pulley and changes the a
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DESCRIPTION
DTC No. Detection Item
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CAUTION / NOTICE / H
Terminals Of Ecu
TERMINALS OF ECU CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY
*A w/o Seat Heater
*B w/ Seat Heater
HINT:
Check from the rear of the connector while it is connected to the air conditioning amplifier assembly.
Make sure to wait at least 2 minutes after turning the ignition switch
