Possible Causes

JUNCTION BLOCK FUSE #1

FUSED IGNITION SWITCH OUTPUT (RUN) CIRCUIT SHORTED TO GROUND

BLOWER MOTOR SHORTED TO GROUND

GROUND CIRCUIT OPEN

A/C - HEATER CONTROL OPEN

BLOWER MOTOR DRIVER CIRCUIT OPEN

RESISTOR-OPEN HI BLOWER MOTOR DRIVER

BLOWER MOTOR DRIVER CIRCUIT OPEN

FUSED IGNITION SWITCH OUTPUT (RUN) CIRCUIT OPEN

BLOWER MOTOR OPEN