1.INSPECT COOLING FAN SYSTEM
To prevent injury due to contact with an operating cooling fan, keep your hands and clothing away from the cooling fan when inspecting the cooling fan system.
Check the operation of the cooling fan while operating it using the GTS.
| Tester Display |
|---|
| Control the Engine Cooling Fan Duty Ratio |
| Active Test Operation | Fan Operation |
|---|---|
| 30 - 100% | Cooling fan operates |
| 0% | Cooling fan stops |
If the cooling fan motor (fan with motor assembly) does not operate, check the cooling fan circuit.