Front Blower Motor Relay

Circuit Operation

Power for the blower motor is supplied on circuit C71. This circuit is HOT when the contacts in the HVAC blower relay are CLOSED. Power for the contact side of the relay is supplied on circuit C1.

The C1 circuit is HOT at all times, and protected by a 40 amp fuse located in cavity 7 of the Power Distribution Center (PDC).

The coil side of the relay is energized when the ignition switch is in the RUN position only. Power for the coil side of the relay is supplied on circuit F20. This circuit connects from the fuse to the relay

Circuit A2 connects from the fuse 8, a 10 amp, in the junction block and supplies power for circuit A22.

Ground for the coil side of the relay is supplied on circuit Z1. This ground terminates at the left cowl panel.

Ground for the blower motor is controlled through the blower motor resistor and the blower motor switch.