- Air conditioning amplifier assembly malfunction
- Air conditioning control assembly malfunction
- Servo motor initialization (incomplete)
- Mechanical locking of damper and damper link
- Refrigerant pressure is extremely low
- Low detected ambient temperature (including thermistor assembly malfunction)
| Last Modified: 06-05-2026 | 6.11:8.1.0 | Doc ID: RM1000000028C5H |
| Model Year Start: 2023 | Model: GR Corolla | Prod Date Range: [11/2022 - ] |
| Title: HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Gasoline Model with Manual Air Conditioning System): A/C Switch Indicator does not Turn On; 2023 - 2026 MY GR Corolla Corolla Corolla Hatchback [11/2022 - ] | ||
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A/C Switch Indicator does not Turn On |
DESCRIPTION
If none of the switch indicators on the air conditioning control assembly illuminate, the following factors may be the cause.
|
Malfunction Status |
Factor |
|---|---|
|
A/C switch indicator does not illuminate |
|
PROCEDURE
|
1. |
CHECK MALFUNCTION STATUS |
(a) Check the malfunction status of switch indicators on the air conditioning control assembly.
Result
Result |
Proceed to |
|---|---|
|
A/C switch indicators are not always illuminated |
A |
|
A/C switch indicators are not illuminated only immediately after starting the engine |
B |
| B |
|
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|
2. |
READ VALUE USING GTS |
(a) Read the Data List according to the display on the GTS.
Body Electrical > Air Conditioner > Data List
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Ambient Temperature Sensor |
Ambient temp. sensor (thermistor assembly) |
-327.68 to 327.67°C |
Actual ambient temperature displayed |
Ambient temp. sensor (thermistor assembly) circuit malfunction |
Body Electrical > Air Conditioner > Data List
OK:
The display is as specified in the normal condition column (0°C (32°F) or higher).
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