E 150 1/2 Ton Van V6-4.2L VIN 2 (1997)
Blower Motor Relay: Description and Operation
The blower motor relay located in the power distribution box is an ISO type relay. When this relay is energized, by selecting an A/C-heater function
selector switch position other than OFF, power is provided from the blower motor fuse (50 A) to the blower motor.