
SE-3
General Description
SEATS
2. FRONT SEAT (DRIVER’S SEAT)
(1) Backrest cover (10) Hinge inner cover LH (19) Power seat switch unit
(2) Backrest pad (11) Rear leg cover inside (20) Inner seat belt ASSY
(3) Backrest frame ASSY (12) Seat cushion cover (21) Slide rail cover
(4) Headrest ASSY (13) Seat heater unit
(5) Headrest lock bushing (14) Seat cushion pad & frame ASSYTightening torque: N·m (kgf-m, ft-lb)
(6) Side airbag module (15) Rear leg cover outsideT1: 6 (0.61, 4.43)
(7) Cover frame (16) Hinge inner cover RHT2: 17.6 (1.79, 12.7)
(8) Backrest back cover (17) Seat side cover outsideT3: 52 (5.30, 37.6)
(9) Seat side cover inside (18) Power seat switch knobT4: 53 (5.40, 38.3)
T3
T3
(1)
(2)
(3)
(8)
(4)
(5)
(6)
(9)
(10)
(12)
T4
T2
T2
T1
T4
(7)
(11)
(15)
(14)
(21)
(20)
(16)
(13)
(19)
(18)
(17)
SE-00581

SE-7
Front Seat
SEATS
2. Front Seat
A: REMOVAL
CAUTION:
The airbag system is fitted with a backup power
source. After disconnecting the battery ground
cable, the airbag may deploy if you do not wait
for 20 seconds before starting the service of
airbag system.
1. DRIVER’S SEAT
1) Remove the headrest.
2) Tilt the backrest forward, and move the seat for-
ward.
3) Remove the rear leg cover, and remove the two
bolts at the rear side of slide rail.
4) Move the seat backward, remove the front leg
cover, and then remove the 2 bolts at the front side
of the slide rail.
5) Disconnect the ground cable from battery, and
wait for more than 20 seconds before starting work.
6) Disconnect the connector under the seat.
•Seat belt buckle switch connector
•Seat position sensor connector
•Side airbag connector
•Seat heater connector
•Power seat connector
7) Remove the seat from vehicle.
2. PASSENGER’S SEAT
CAUTION:
Refer to “CAUTION” of “General Description”
before starting the work.
1) Remove the headrest.
2) Tilt the backrest forward, and move the seat for-
ward.
3) Remove the rear leg cover, and remove the bolt
at the rear side of the slide rail.
4) Move the seat backward, remove the front leg
cover, and then remove the bolt at the front side of
the slide rail.
5) Disconnect the ground cable from battery, and
wait for more than 20 seconds before starting work.
6) Disconnect all the connectors of connector hold-
er in the backside of seat cushion.
•Harness connector of occupant detection control
module
•Side airbag connector
•Power seat connector
•Seat heater connector
7) Remove the seat belt anchor cover.
NOTE:
Tilt the seat back all the way to provide workspace.
8) Remove the seat from vehicle.
B: INSTALLATION
Install in the reverse order of removal.
NOTE:
Tighten the slide rail installing bolt gradually in sev-
eral steps to the specified torque in the order as
shown in the figure.
CAUTION:
After installing the driver’s seat, use the Subaru
Select Monitor to confirm that the seat position
sensor LH is operating properly.
OPERATION, Subaru Select Monitor.>
Tightening torque:
Refer to “COMPONENT” of “General Descrip-
tion”.
C: DISASSEMBLY
1. DRIVER’S SEAT
1) Remove the seat from vehicle.
2) Remove the clip (A) and straps (B) on the back
of seat cushion.
3) Disconnect the following connectors from the
backside of seat cushion.
•Side airbag
•Seat position sensor
•Seat heater
•Power seat
•Seat belt
SE-00479
(1)
(3)
(4)
(2)
(B)(A)
SE-00643

SE-19
Seat Heater System
SEATS
5. Seat Heater System
A: REMOVAL
1. SEAT HEATER UNIT
1) Remove the front seats.
2) Remove the backrest cover of front seat and
seat cushion cover.
3) Remove the hog rings, and then remove the seat
heater unit.
2. SEAT HEATER SWITCH
The seat heater switch is built into the control pan-
el.
B: INSTALLATION
Install in the reverse order of removal.
SE-00082

SE-20
Seat Heater System
SEATS

CO(H6DO)-10
Engine Coolant
COOLING
3. Engine Coolant
A: REPLACEMENT
1. DRAINING OF ENGINE COOLANT
1) Lift-up the vehicle.
2) Remove the under cover.
3) Remove the drain plug to drain engine coolant
into container.
NOTE:
Remove the radiator cap so that engine coolant will
drain faster.
4) Install the drain plug.
2. FILLING OF ENGINE COOLANT
1) Pour cooling system conditioner through the fill-
er neck.
Cooling system protective agent:
COOLING SYSTEM CONDITIONER (Part No.
SOA345001)
2) Pour engine coolant into the radiator up to the
filler neck position.
Coolant level:
Refer to “SPECIFICATION” for the engine
coolant capacity.
NOTE:
The SUBARU Genuine Coolant containing anti-
freeze and anti-rust agents is especially made for
SUBARU engine, which has an aluminum crank-
case. Always use SUBARU Genuine Coolant,
since other coolant may cause corrosion.
3) Open the air bleeding valve on the heater hose
side.
4) If the engine coolant level drops, add engine
coolant into radiator up to the filler neck position.
5) When engine coolant has come out from the air
bleeding valve on the heater hose side, close the
valve.
6) Open the air bleeding valve on the radiator side.
7) If the engine coolant level drops, add engine
coolant into radiator up to the filler neck position.
8) When engine coolant has come out from the air
bleeding valve on the radiator side, close the valve.
9) Fill engine coolant into the reservoir tank up to
“FULL” level.
10) Close the radiator cap and start the engine.
Race 5 to 6 times at less than 3,000 rpm, then stop
the engine. (Complete this operation within 40 sec-
onds.)
CO-02192
(1) FULL
(2) LOW
CO-02213
CO-02196
(1)
(2)

CO(H6DO)-11
Engine Coolant
COOLING
11) Wait for one minute after the engine stops,
open the radiator cap. If the engine coolant level
drops, add engine coolant into radiator up to the fill-
er neck position.
12) Perform the procedures 10) and 11) again.
13) Attach the radiator cap and reservoir tank cap
properly.
14) Start the engine and operate the heater at max-
imum hot position and the blower speed setting to
“LO.”
15) Run the engine at 2,000 rpm or less until radia-
tor fan starts and stops.
NOTE:
•Be careful with the engine coolant temperature
gauge to prevent overheating.
•If the radiator hose becomes harden with the
pressure of engine coolant, air bleeding operation
seems to be almost completed.
16) Stop the engine and wait until the engine cool-
ant temperature lowers to 30°C (86°F).
17) Open the radiator cap. If the engine coolant lev-
el drops, add engine coolant into radiator up to the
filler neck position and reservoir tank to the “FULL”
level.
18) Attach the radiator cap and reservoir tank cap
properly.
19) Set the heater setting to maximum hot position
and the blower speed setting to “LO” and start the
engine. Perform racing at less than 3,000 rpm. If
the flowing sound is heard at this time, perform the
procedures from 15) again.
B: INSPECTION
1. RELATIONSHIP OF SUBARU COOLANT
CONCENTRATION AND FREEZING TEM-
PERATURE
The concentration and safe operating temperature
of SUBARU coolant is shown in the diagram. Mea-
suring the temperature and specific gravity of the
coolant will provide this information.
[Example]
If the coolant temperature is 25°C (77°F) and its
specific gravity is 1.054, the concentration is 35%
(point A), the safe operating temperature is –14°C
(7°F) (point B), and the freezing temperature is –
20°C (–4°F) (point C).
CO-02172
60%
(1.054)
1.000
1.010
1.020
1.030
1.040
1.050
1.060
1.070
1.080
1.090
1.100
Safe operating temperature
Freezingtemperature
Concentrationof coolant
Specific gravityof coolant
Coolant temperature
B
A
C
-40(-40) (-22)(-4)(14)(32)(50) (68) (86)
( F)
(104)-30-20 -10010203040
(77 F)
50%
40%
30%
20%
25 C
10%
C

EN(H6DO)(diag)-18
Engine Control Module (ECM) I/O Signal
ENGINE (DIAGNOSTICS)
Manifold absolute pressure sen-
sorB134 6 3.5 — 4.8 1.1 — 1.9 —
Air flow sensor
Signal B135 26 0.74 0.3 — 4.5 —
Shield B135 35 0 0 —
Ground B135 34 0 0 —
Intake air temperature sensor B135 18 3.15 — 3.33 3.15 — 3.33Intake air tempera-
ture 25°C (75°F)
Fr o nt ox yg e n ( A / F)
sensor RH
Signal (+) B135 9 2.8 — 3.2 2.8 — 3.2 —
Signal (–) B135 8 2.4 — 2.7 2.4 — 2.7 —
Shield B135 1 0 0 —
Fr o nt ox yg e n ( A / F)
sensor heater RH
Signal 1 B136 3 12 — 14 — Waveform
Signal 2 B136 2 12 — 14 — Waveform
Fr o nt ox yg e n ( A / F)
sensor LH
Signal (+) B135 11 2.8 — 3.2 2.8 — 3.2 —
Signal (–) B135 10 2.4 — 2.7 2.4 — 2.7 —
Shield B135 1 0 0 —
Fr o nt ox yg e n ( A / F)
sensor heater LH
Signal 1 B135 7 12 — 14 — Waveform
Signal 2 B135 6 12 — 14 — Waveform
Rear oxygen sen-
sor RH
Signal B135 4 0 0 — 0.9 —
Shield B135 1 0 0 —
Rear oxygen sensor heater RH
signalB136 4 12 — 14 — Waveform
Rear oxygen sen-
sor LH
Signal B135 15 0 0 — 0.9 —
Shield B135 1 0 0 —
Rear oxygen sensor heater LH
signalB136 5 12 — 14 — Waveform
Immobilizer communication 1 B136 26 10 10 —
Immobilizer communication 2 B136 34 10 10 —
Fuel pump control
unit
Diagnosis
signalB135 33 10 — 13 13 — 14 —
Control B136 12 0 0 or 5 —
Brake switch 1 B135 20
When brake pedal is
depressed: 0
When brake pedal is
released: 10 — 13
When brake pedal is
depressed: 0
When brake pedal is
released: 13 — 14
—
Brake switch 2 B135 28
When brake pedal is
depressed: 10 — 13
When brake pedal is
released: 0
When brake pedal is
depressed: 13 — 14
When brake pedal is
released: 0
—
Cruise control command switch B135 24
When operating
nothing: 3.5 — 4.5
When operating
RES/ACC: 2.5 — 3.5
When operating SET/
COAST: 0.5 — 1.5
When operating
CANCEL: 0 — 0.5
When operating
nothing: 3.5 — 4.5
When operating
RES/ACC: 2.5 — 3.5
When operating SET/
COAST: 0.5 — 1.5
When operating
CANCEL: 0 — 0.5
—
Cruise control main switch B135 12ON: 0
OFF: 5
ON: 0
OFF: 5—
Oil flow control sole-
noid valve RH
Signal (+) B137 17 0 0.6 —
Signal (–) B137 16 0 0 —
Oil flow control sole-
noid valve LH
Signal (+) B137 15 0 0.6 —
Signal (–) B137 14 0 0 —
DescriptionConnector
No.
Te r m i n a l
No.
Signal (V)
ReferenceIgnition SW ON
(engine OFF)
Engine ON
(idling)

EN(H6DO)(diag)-35
Inspection Mode
ENGINE (DIAGNOSTICS)
11.Inspection Mode
A: PROCEDURE
When performing the diagnosis not listed in “List of Diagnostic Trouble Code (DTC)”, refer the item on the
drive cycle.
DTC Item On condition
P0011 Intake Camshaft Position Timing - Over-Advanced (Bank 1) —
P0016 Crankshaft Position - Camshaft Position Correlation (Bank 1) —
P0018 Crankshaft Position - Camshaft Position Correlation (Bank 2) —
P0021 Intake Camshaft Position Timing - Over-Advanced (Bank 2) —
P0031 HO2S Heater Control Circuit Low (Bank 1 Sensor 1) —
P0032 HO2S Heater Control Circuit High (Bank 1 Sensor 1) —
P0037 HO2S Heater Control Circuit Low (Bank 1 Sensor 2) —
P0038 HO2S Heater Control Circuit High (Bank 1 Sensor 2) —
P0051 HO2S Heater Control Circuit Low (Bank 2 Sensor 1) —
P0052 HO2S Heater Control Circuit High (Bank 2 Sensor 1) —
P0057 HO2S Heater Control Circuit Low (Bank 2 Sensor 2) —
P0058 HO2S Heater Control Circuit High (Bank 2 Sensor 2) —
P0077 Intake Valve Control Circuit High (Bank 1) —
P0083 Intake Valve Control Circuit High (Bank 2) —
P0102 Mass or Volume Air Flow Circuit Low Input —
P0103 Mass or Volume Air Flow Circuit High Input —
P0107 Manifold Absolute Pressure/Barometric Pressure Circuit Low Input —
P0108 Manifold Absolute Pressure/Barometric Pressure Circuit High Input —
P0112 Intake Air Temperature Circuit Low Input —
P0113 Intake Air Temperature Circuit High Input —
P0117 Engine Coolant Temperature Circuit Low Input —
P0118 Engine Coolant Temperature Circuit High Input —
P0122 Throttle/Pedal Position Sensor/Switch “A” Circuit Low Input —
P0123 Throttle/Pedal Position Sensor/Switch “A” Circuit High Input —
P0131 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1) —
P0132 O2 Sensor Circuit High Voltage (Bank 1 Sensor 1) —
P0137 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2) —
P0138 O2 Sensor Circuit High Voltage (Bank 1 Sensor 2) —
P0140 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2) —
P0151 O2 Sensor Circuit Low Voltage (Bank 2 Sensor 1) —
P0152 O2 Sensor Circuit High Voltage (Bank 2 Sensor 1) —
P0157 O2 Sensor Circuit Low Voltage (Bank 2 Sensor 2) —
P0158 O2 Sensor Circuit High Voltage (Bank 2 Sensor 2) —
P0160 O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 2) —
P0182 Fuel Temperature Sensor “A” Circuit Low Input —
P0183 Fuel Temperature Sensor “A” Circuit High Input —
P0197 Engine Oil Temperature Sensor Circuit Low —
P0198 Engine Oil Temperature Sensor Circuit High —
P0222 Throttle/Pedal Position Sensor/Switch “B” Circuit Low Input —
P0223 Throttle/Pedal Position Sensor/Switch “B” Circuit High Input —
P0230 Fuel Pump Primary Circuit —
P0327 Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor) —
P0328 Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor) —
P0332 Knock Sensor 2 Circuit Low Input (Bank 2) —
P0333 Knock Sensor 2 Circuit High Input (Bank 2) —
P0335 Crankshaft Position Sensor “A” Circuit —
P0336 Crankshaft Position Sensor “A” Circuit Range/Performance —