Dakota 2WD V6-3.9L VIN X (1997)
Blower Motor Relay: Description and Operation
Blower Motor Relay
Fig 40 Power Distribution Center
The blower motor relay is a International Standards Organization (ISO)-type relay. The relay is a electromechanical device that switches battery
current from a fuse in the Power Distribution Center (PDC) to the blower motor, whenever the ignition switch is in the On position. This
arrangement reduces the amount of battery current that must flow through the ignition switch.
When the ignition switch is in the On position, the relay is energized by a fused battery feed signal to the relay coil. The relay control circuit is
protected by a fuse located in the junction block. When the relay is de-energized, the blower motor receives no battery feed. See the Diagnosis and
Testing section of this group for more information on the operation of the relay.
The blower motor relay is located in the PDC in the engine compartment. The relay cannot be repaired and, if faulty or damaged, it must be
replaced.
