Problem Symptoms Table
WARNING: This page is about a different car, the 2011 Lexus LS 460. However, it is still accessible from the selected car via links, so may be relevant.
HINT:
Use the table below to help determine the cause of the problem symptom. 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.
COOLING FAN SYSTEM
| Symptom | Suspected Area | See |
|---|---|---|
| Cooling fan does not stop rotating | Cooling fan relay | Refer to ON-VEHICLE INSPECTION - Step 1 |
| Check for DTC (engine control system) | Refer to DTC P0115: Engine Coolant Temperature Circuit Malfunction; DTC P0117: Engine Coolant Temperature Circuit Low Input; DTC P0118: Engine Coolant Temperature Circuit High Input | |
| Check for DTC (CAN communication system) | Refer to DIAGNOSTIC TROUBLE CODE CHART | |
| Cooling fan motor (for 2WD) | Refer to ON-VEHICLE INSPECTION | |
| Cooling fan motor (for AWD) | Refer to ON-VEHICLE INSPECTION | |
| Cooling fan ECU | Refer to ON-VEHICLE INSPECTION | |
| Front controller | - | |
| Cooling fan does not rotate | Power source circuit | - |
| Cooling fan relay | Refer to ON-VEHICLE INSPECTION - Step 1 | |
| Cooling fan motor | Refer to ON-VEHICLE INSPECTION | |
| Cooling fan ECU | Refer to ON-VEHICLE INSPECTION | |
| Front controller | - |