Subaru Legacy 2004 Service Manual page 631

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step
29 CHECK ELECTRONIC THROTTLE CON-
TROL.
Move the throttle valve to the fully open and
fully closed positions with fingers.
Check that the valve returns to the specified
position when releasing fingers.
Check
Does the valve return to the
specified position?
Standard value: 3 mm (0.12 in)
from fully closed position
EN(H4SO 2.0)(diag)-199
ENGINE (DIAGNOSTICS)
Yes
Repair the poor Replace the elec-
contact in ECM tronic throttle con-
connector. trol.
Replace the ECM
if defective. <Ref.
to FU(H4SO 2.0)-
34, Engine Con-
trol Module
(ECM).>
No