Radiator Fan Switch Test
Radiator Fan Switch Test1. Remove the radiator fan switch from the radiator.
2. Suspend the radiator fan switch (A) in a container of water as shown.
3. Heat the water and check the temperature with a thermometer. Do not let the thermometer (B) touch the bottom of the hot container.
4. Measure the continuity between terminal No. 1 and terminal No. 2 according to the table.