Subaru Legacy 2004 Service Manual page 936

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step
1 CHECK OPTION CODE.
2 CHECK OPERATION OF STARTER MOTOR.
Turn the ignition switch to ON.
NOTE:
Place the inhibitor switch in each position.
Check
Is the option code EC, EK or
K4?
Does the starter motor oper-
ate?
EN(H4SO 2.5)(diag)-177
ENGINE (DIAGNOSTICS)
Yes
Go to step 2. Refer to EN(H4SO
2.0) section. <Ref.
to EN(H4SO
2.0)(diag)-66, List
of Diagnostic Trou-
ble Code (DTC).>
NOTE:
Fuel injection sys-
tem for KA and KS
model is the same
as 2.0 L model.
Repair the battery Check starter
short circuit in motor circuit. <Ref.
starter motor cir- to EN(H4SO
cuit. 2.5)(diag)-55,
STARTER
MOTOR CIR-
CUIT, Diagnostics
for Engine Start-
ing Failure.>
No