Throttle Body: Removal

Disconnect the ground cable from battery.
Lift up the vehicle.
Remove the under cover. < Ref. to REMOVAL , Front Under Cover. >
Drain approximately 3.0 L (3.2 US qt, 2.6 Imp qt) of coolant. < Ref. to DRAINING OF ENGINE COOLANT , REPLACEMENT, Engine Coolant. >
Remove the clip (A) from the air intake boot.
Loosen the clamp (B) securing the air cleaner case (rear) to the air intake boot.
Loosen the clamp (C) which secures the throttle body to the air intake boot.

Fig 1: Identifying Air Intake Boot Clamps And Clip
Courtesy of SUBARU OF AMERICA, INC.
Remove the air intake boot from the throttle body, and move it to the left side wheel apron.

Fig 2: Identifying Air Intake Boot
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the connectors (A) from the throttle position sensor.
Disconnect the preheater hose (B) from the throttle body.

Fig 3: Identifying Throttle Position Sensor Connector And Throttle Body Preheater Hoses
Courtesy of SUBARU OF AMERICA, INC.
Remove the throttle body from the intake manifold.

Fig 4: Locating Throttle Body Bolts
Courtesy of SUBARU OF AMERICA, INC.