Toyota Corolla Cross: Problem Symptoms Table
Toyota Corolla Cross (2022-2024) Service Manual / Engine & Hybrid System / M20a-fks (cooling) / Cooling Fan System / Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
- Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses related to this system before inspecting the suspected areas below.
|
Symptom | Suspected Area |
Link |
|---|---|---|
| Cooling fans do not operate |
Engine coolant temperature sensor |
|
|
Cooling fan motor | - | |
|
ECM power source circuit |
| |
|
Wire harness | - | |
|
ECM |
| |
|
Cooling fan does not operate (Cooling fan motor) |
Cooling fan circuit |
|
|
Cooling fans do not stop (continue to operate) |
Engine coolant temperature sensor |
|
|
Wire harness | - | |
|
Cooling fan motor | - | |
|
ECM |
| |
|
Cooling fan does not stop (continues to operate)(Cooling fan motor) |
Cooling fan circuit |
|
|
Cooling fan speed does not change |
Cooling fan circuit |
|
|
ECM |
|
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READ NEXT:
On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE
1. INSPECT COOLING FAN SYSTEM CAUTION: To prevent injury due to contact with an operating cooling fan, keep your hands and clothing away from the cooling fan when ins
Cooling Fan Circuit
DESCRIPTION The ECM calculates an appropriate cooling fan speed based on the engine coolant temperature, air conditioning switch status, refrigerant pressure, engine speed and vehicle speed, and sends
Cooling System
On-vehicle InspectionON-VEHICLE INSPECTION CAUTION / NOTICE / HINT
CAUTION: Do not remove the reserve tank cap and air release valve while the engine and radiator assembly are still hot. Pressurized
SEE MORE:
No Cool Air Comes Out
DESCRIPTION If warm air blows from the registers regardless of the temperature setting of the air conditioning system, the following factors may be the cause.
Symptom Factor
No cool air comes out
(Blower control is normal)
Compressor with pulley assembly mal
Removal
REMOVAL
CAUTION / NOTICE / HINT
COMPONENTS (REOVAL)
Procedure
Part Name Code
1
TAIL EXHAUST PIPE ASSEMBLY
17430
-
-
2
MAIN MUFFLER UPPER HEAT INS
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