Titan 4WD V8-5.6L (VK56DE) (2006)
Defroster door motor
The defroster door motor is attached to the front heater & cooling unit. The front air control sends a voltage to rotate the defroster door directing the air
flow either to the defroster ducts, or to the floor ducts, depending on which way the voltage and ground are applied to the motor leads. Motor rotation is
conveyed to a lever which activates the defroster door.
Diagnostic Procedure For Defroster Door Motor (Step 1)