| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM100000001HBGH |
| Model Year Start: 2020 | Model: Corolla | Prod Date Range: [01/2019 - ] |
| Title: 2ZR-FXE (COOLING): COOLING FAN SYSTEM: ON-VEHICLE INSPECTION; 2020 - 2025 MY Corolla Corolla HV [01/2019 - ] | ||
ON-VEHICLE INSPECTION
CAUTION / NOTICE / HINT
CAUTION:
-
When working near the engine room while the engine has started or the power source mode is power switch on (IG), do not touch the rotating components such as the fan, etc.
- Touching rotating components such as the fan, etc. could result in your hand or clothing getting caught and pulled in.
-
When the engine is hot, do not touch high-temperature areas such as the engine or exhaust manifold.
- Touching high-temperature areas such as the engine and exhaust manifold could result in burns.
PROCEDURE
1. INSPECT COOLING FAN SYSTEM OPERATION AT LOW TEMPERATURES
CAUTION:
- When working near the engine room while the engine has started or the power source mode is power switch on (IG), do not touch the rotating components such as the fan, etc.
- Touching rotating components such as the fan, etc. could result in your hand or clothing getting caught and pulled in.
- When the engine is hot, do not touch high-temperature areas such as the engine or exhaust manifold.
- Touching high-temperature areas such as the engine and exhaust manifold could result in burns.
(a) Check and ensure the following conditions:
(1) The power switch is off.
(2) The engine coolant temperature is less than 94°C (201°F).
(3) The A/C switch is off.
(b) Turn the power switch on (IG) and wait for approximately 10 seconds. Check that the cooling fans are not operating.
(c) Check that the cooling fans operate when the water temperature sensor connector is disconnected.
2. INSPECT COOLING FAN SYSTEM OPERATION AT HIGH TEMPERATURES
CAUTION:
- When working near the engine room while the engine has started or the power source mode is power switch on (IG), do not touch the rotating components such as the fan, etc.
- Touching rotating components such as the fan, etc. could result in your hand or clothing getting caught and pulled in.
- When the engine is hot, do not touch high-temperature areas such as the engine or exhaust manifold.
- Touching high-temperature areas such as the engine and exhaust manifold could result in burns.
(a) Check and ensure the following conditions:
(1) Connect the Techstream to the DLC3.
(2) Turn the power switch on (IG).
(3) Turn the Techstream on.
(4) Enter following menus: Powertrain / Hybrid Control / Utility / Inspection Mode.
Powertrain > Hybrid Control > Utility
|
Tester Display |
|---|
|
Inspection Mode |
(5) Warm up the engine.
(6) The engine coolant temperature is less than 94°C (201°F).
(7) The A/C switch is off.
(b) Start the engine. Check that the cooling fans are not operating.
(c) Check that the cooling fans start operating when the engine coolant temperature reaches approximately 96°C (205°F).
HINT:
This system can also be checked using the Techstream.
Enter the following menus: Powertrain / Engine / Data List / Coolant Temperature.
Powertrain > Engine > Data List
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Tester Display |
|---|
|
Coolant Temperature |
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