Subaru Legacy 2003 Service Manual page 512

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
Step
1 CHECK ANY OTHER DTC ON DISPLAY.
Is any other DTC displayed?
2 CHECK ENGINE COOLANT TEMPERA-
TURE.
1) Start the engine and warm it up completely.
2) Measure engine coolant temperature using
Subaru Select Monitor or OBD-II general
scan tool.
Is the measured value within the specified
range?
NOTE:
•Subaru Select Monitor
For detailed operation procedure, refer to the
"READ CURRENT DATA FOR ENGINE".
<Ref. to EN(H4SO)-32, Subaru Select Moni-
tor.>
•OBD-II general scan tool
For detailed operation procedures, refer to the
OBD-II General Scan Tool Instruction Manual.
Value
DTC indicated.
75 - 95°C (167 - 203°F)
EN(H4SO)-115
ENGINE (DIAGNOSTICS)
Yes
Inspect the rele- Go to step 2.
vant DTC using
"List of Diagnostic
Trouble Code
(DTC)". <Ref. to
EN(H4SO)-83, List
of Diagnostic
Trouble Code
(DTC).>
NOTE:
In this case, it is
not necessary to
inspect DTC
P0111.
Replace intake air Inspect DTC
temperature sen- P0125 using "List
sor. <Ref. to of Diagnostic
FU(H4SO)-33, Trouble Code
REMOVAL, Intake (DTC)". <Ref. to
Air Temperature EN(H4SO)-83, List
Sensor.> of Diagnostic
Trouble Code
(DTC).>
No