Last Modified: 11-20-2023 |
6.11:8.1.0 |
Doc ID: RM100000001R3Z6 |
Model Year Start: 2021 |
Model: Camry |
Prod Date Range: [10/2020 -
] |
Title: HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System): Indicator does not Illuminate; 2021 - 2024 MY Camry [10/2020 - ] |
Indicator does not Illuminate
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DESCRIPTION
If none of the switch indicators on the air conditioning control assembly illuminate, the following suspected areas may be the cause.
Symptom
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Factor
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None of the switch indicators on the air conditioning control assembly illuminate
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Air conditioning amplifier assembly malfunction
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Air conditioning control assembly malfunction
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A/C switch malfunction
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A/C switch indicator malfunction (including when indicator turned off without switch operation)
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Servo motor initialization (incomplete)
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Mechanical locking of damper and damper link
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Refrigerant pressure is extremely low
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Low detected ambient temperature (including thermistor assembly malfunction)
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PROCEDURE
1.
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CHECK AIR CONDITIONING CONTROL ASSEMBLY
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(a) Check that the switch indicators on the air conditioning control assembly illuminate immediately after the engine is started.
OK:
All switch indicators illuminate.
OK
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2.
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READ VALUE USING TECHSTREAM
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(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 / Data List.
(e) Read the Data List according to the display on the Techstream.
Body Electrical > Air Conditioner > Data List
Tester Display
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Measurement Item
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Range
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Normal Condition
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Diagnostic Note
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Ambient Temp Sensor
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Thermistor assembly
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Min.: -23.30°C (-9.94°F)
Max.: 65.95°C (150.71°F)
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Actual ambient temperature displayed
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-
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Body Electrical > Air Conditioner > Data List
Tester Display
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Ambient Temp Sensor
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OK:
The value displayed is 0°C (32°F) or higher.
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