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 and relays related to this system before inspecting the suspected areas below.
COOLING FAN SYSTEM
| Symptom | Suspected Area | Refer To |
|---|---|---|
| Cooling fan does not operate | Engine coolant temperature sensor | Refer to INSPECTION |
| Cooling fan motor | Refer to ON-VEHICLE INSPECTION | |
| FAN No. 1 relay | Refer to ON-VEHICLE INSPECTION | |
| Cooling fan circuit | Refer to Cooling Fan Circuit | |
| Cooling fan ECU | Refer to ON-VEHICLE INSPECTION | |
| ECM | Refer to REMOVAL | |
| Cooling fan does not stop | Cooling fan circuit | Refer to Cooling Fan Circuit |
| CAN communication system | Refer to PROBLEM SYMPTOMS TABLE | |
| Cooling fan ECU | Refer to ON-VEHICLE INSPECTION | |
| ECM | Refer to REMOVAL | |
| Cooling fan speed does not change | Cooling fan circuit | Refer to Cooling Fan Circuit |
| CAN communication system | Refer to PROBLEM SYMPTOMS TABLE | |
| Cooling fan ECU | Refer to ON-VEHICLE INSPECTION | |
| ECM | Refer to REMOVAL |