Subaru Legacy 2004 Service Manual page 3394

Control Unit (Auto A/C Model)
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
13.Control Unit (Auto A/C Model)
A: REMOVAL
1) Disconnect the ground cable from battery.
2) Remove the glove box. <Ref. to EI-51, REMOV-
AL, Glove Box.>
3) Remove the screw, disconnect the connector
and remove the control unit.
AC-00919
B: INSTALLATION
Install in the reverse order of removal.
AC-32