Tech Tips
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 circuit | ||
| ECM (w/ Canister Pump Module) | ||
| ECM (w/o Canister Pump Module) | ||
| Air conditioning amplifier assembly | ||
| Cooling fan does not operate (fan RH) | FAN NO. 1 Relay | |
| Cooling fan circuit | ||
| Cooling fan motor RH | - | |
| Cooling fan does not operate (fan LH) | FAN NO. 1 Relay | |
| Cooling fan circuit | ||
| Cooling fan motor LH | - | |
| Cooling fans do not stop (continue to operate) | Engine coolant temperature sensor | |
| Cooling fan circuit | ||
| ECM (w/ Canister Pump Module) | ||
| ECM (w/o Canister Pump Module) | ||
| Air conditioning amplifier assembly | ||
| Cooling fan does not stop (continues to operate)(fan RH) | Cooling fan circuit | |
| Cooling fan motor RH | - | |
| Cooling fan does not stop (continues to operate)(fan LH) | Cooling fan circuit | |
| Cooling fan motor LH | - | |
| Cooling fan speed does not change | Cooling fan circuit | |
| Cooling fan motor RH | - | |
| Cooling fan motor LH | - | |
| ECM (w/ Canister Pump Module) | ||
| ECM (w/o Canister Pump Module) | ||
| Air conditioning amplifier assembly |