The 2sp controller will control all of the two speed Ford cooling fans, including the 3.8L Taurus fan correctly, the low speed circuit is calibrated to turn the fan on low at 185F, but is adjustable over a wide range of temperatures. The high speed circuit turns the fan on high at 10 degrees higher in temperature while disabling the low speed circuit
instructions
The 2sp2 controller uses an 80A relay for the high speed circuit, along with additional circuitry to control two of the two speed Ford cooling fans, including the 3.8L Taurus fan correctly, the low speed circuit is calibrated to turn the fan on low at 185F, but is adjustable over a wide range of temperatures. The high speed circuit turns the fan on high at 10 degrees higher in temperature while disabling the low speed circuit
Accessories
The L102 indicator connects to the controller high speed output. By sensing the fan speed, the indicator switches from green (low speed) to yellow (high speed)