DTC P0481: A/C Condenser Fan Control Circuit Malfunction: Description

A/C condenser fan is turned on and off the A/C condenser fan relay. Relay is in turn controlled by the Engine Control Module (ECM). A/C condenser fan is turned on when ECM outputs A/C ON signal to A/C control module (amplifier), or when engine coolant temperature is 221°F (105°C) or more.