Possible Causes
WARNING: This page is about a different car, the 2003 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
POWER DISTRIBUTION CENTER FUSE #13
BLOWER MOTOR FEED CIRCUIT SHORTED TO GROUND
FUSED B(+) CIRCUIT SHORTED TO GROUND
BLOWER MOTOR SHORTED TO GROUND
GROUND CIRCUIT OPEN
A/C - HEATER CONTROL MODULE OPEN
BLOWER MOTOR DRIVER CIRCUIT OPEN
RESISTOR-OPEN HI BLOWER MOTOR DRIVER
BLOWER MOTOR COMMON DRIVER CIRCUIT OPEN
BLOWER MOTOR
FUSED B(+) CIRCUIT OPEN
IGNITION SWITCH OPEN