Subaru 2009 IMPREZA Service Manual page 2709

Power Transistor (Auto A/C Model)
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
9. Power Transistor
(Auto A/C Model)
A: REMOVAL
1) Remove the instrument panel lower. <Ref. to EI-
51, INSTRUMENT PANEL, LOWER, REMOVAL,
Center Console.>
2) Disconnect the power transistor connector.
3) Remove the two screws and remove the power
transistor.
AC-01806
B: INSTALLATION
Install in the reverse order of removal.
AC-29