CHECK ENGINE START FAILURE.
1) Ask the customer when and how the trou-
ble occurred using the interview check list.
<Ref. to EN(H4DOTC)(diag)-3, CHECK, Check
List for Interview.>
2) Start the engine.

Does the engine start?

Go to step 2.

Inspection using
“Diagnostics for
Engine Starting
Failure” <Ref. to
EN(H4DOTC)(diag
)-49, Diagnostics
for Engine Start-
ing Failure.>

CHECK ILLUMINATION OF MALFUNCTION
INDICATOR LIGHT.

Does the malfunction indicator
light illuminate?

Go to step 3.

Inspection using
“General Diagnos-
tic Table”. <Ref. to
EN(H4DOTC)(diag
)-213, General
Diagnostic Table.>

CHECK DTC.
1) Turn the ignition switch to OFF.
2) Connect the Subaru Select Monitor to data
link connector.
3) Turn the ignition switch to ON.
4) Read DTC using Subaru Select Monitor or
general scan tool.

NOTE:

• Subaru Select Monitor
For detailed operation procedure, refer to
“READ CURRENT DATA FOR ENGINE”. <Ref.
to EN(H4DOTC)(diag)-24, Subaru Select Mon-
itor.>
• General scan tool
For detailed operation procedure, refer to the
general scan tool operation manual.

Is DTC displayed on the Sub-
aru Select Monitor or general
scan tool?

Record the DTC.
Repair the trouble
cause. <Ref. to
EN(H4DOTC)(diag
)-62, List of Diag-
nostic Trouble
Code (DTC).> Go
to step 4.

Repair the related
parts.

NOTE:
If DTC is not
shown on display
although the mal-
function indicator
light illuminates,
perform the diag-
nostics of malfunc-
tion indicator light
circuit or combina-
tion meter. <Ref. to
EN(H4DOTC)(di-
ag)-40, Malfunc-
tion Indicator
Light.>

PERFORM DIAGNOSIS.
1) Perform the clear memory mode. <Ref. to
EN(H4DOTC)(diag)-37, Clear Memory Mode.>
2) Perform the inspection mode. <Ref. to
EN(H4DOTC)(diag)-30, Inspection Mode.>

Is DTC displayed on the Sub-
aru Select Monitor or general
scan tool?

Inspect using
“Diagnostic Proce-
dure with Diagnos-
tic Trouble Code
(DTC)”. <Ref. to
EN(H4DOTC)(diag
)-67, Diagnostic
Procedure with
Diagnostic Trou-
ble Code (DTC).>

Finish the diagno-
sis.

EN(H4DOTC)(diag)-3

ENGINE (DIAGNOSTICS)

Check List for Interview

2. Check List for Interview

A: CHECK

1. CHECK LIST No. 1

Check the following items when problem has occurred.

NOTE:
Use copies of this page for interviewing customers.

Customer’s name

Engine No.

Date of sale

Fuel brand

Date of repair

Odometer reading

V.I.N.

miles

Weather

❏ Fine

❏ Cloudy

❏ Rainy

❏ Snowy

❏ Various/Others:

Ambient air temperature

°C (°F)

❏ Hot

❏ Warm

❏ Cool

❏ Cold

Place

❏ Highway

❏ Suburbs

❏ Inner city

❏ Uphill

❏ Downhill

❏ Rough road

❏ Others:

Engine temperature

❏ Cold

❏ Warming-up

❏ After warming-up

❏ Any temperature

❏ Others:

Engine speed

rpm

Vehicle speed

km/h (MPH)

Driving conditions

❏ Not affected

❏ At starting

❏ While idling

❏ At racing

❏ While accelerating

❏ While cruising

❏ While decelerating

❏ While turning (RH/LH)

Headlight

❏ ON / ❏ OFF

Rear defogger

❏ ON / ❏ OFF

Blower

❏ ON / ❏ OFF

Audio

❏ ON / ❏ OFF

A/C compressor

❏ ON / ❏ OFF

Car phone

❏ ON / ❏ OFF

Radiator fan

❏ ON / ❏ OFF

Front wiper

❏ ON / ❏ OFF

Rear wiper

❏ ON / ❏ OFF

EN(H4DOTC)(diag)-4

ENGINE (DIAGNOSTICS)

Check List for Interview

2. CHECK LIST No. 2

Check the following items about the vehicle’s state when malfunction indicator light turns on.

NOTE:
Use copies of this page for interviewing customers.

a) Other warning lights or indicators turn on.

❏ Yes / ❏ No

❏ Low fuel warning light

❏ Charge indicator light

❏ AT diagnostic indicator light

❏ ABS warning light

❏ Oil pressure warning light
b) Fuel level

• Lack of gasoline:

❏ Yes / ❏ No

• Indicator position of fuel gauge:
• Experience of running out of fuel:

❏ Yes / ❏ No

c) Intentional connecting or disconnecting of harness connectors or spark plug cords:

❏ Yes / ❏ No

• What:

d) Intentional connecting or disconnecting of hoses:

❏ Yes / ❏ No

• What:

e) Installing of other parts except genuine parts:

❏ Yes / ❏ No

• What:
• Where:

f) Occurrence of noise:

❏ Yes / ❏ No

• From where:
• What kind:

g) Occurrence of smell:

❏ Yes / ❏ No

• From where:
• What kind:

h) Intrusion of water into engine compartment or passenger compartment:

❏ Yes / ❏ No

i) Troubles occurred
❏ Engine does not start.

❏ Engine stalls during idling.

❏ Engine stalls while driving.

❏ Engine speed decreases.

❏ Engine speed does not decrease.

❏ Rough idling

❏ Poor acceleration

❏ Back fire

❏ After fire

❏ Does not shift.

❏ Excessive shift shock

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