2007 SUBARU IMPREZA WRX wiring

tion switch is turned to the“ON ”position.
The following components are monitored
by the indicator: . Front sub sensor (Right-hand side)
. Front sub sensor (Left-hand side)
. Airbag control module (including im-
pact sensors). Frontal airbag module (Driver ’s side)
. Frontal airbag module (Front passen-
ger ’s side)
. Side airbag sensor (Center pillar right-
hand side). Side airbag sensor (Center pillar left-
hand side). Side airbag module (Driver ’s side)
. Side airbag module (Front passenger ’s
side). Seatbelt pretensioner (Driver ’s side)
. Seatbelt pretensioner (Front passen-
ger ’s side)
. Seatbelt buckle switch (Driver ’s side)
. Seatbelt buckle switch (Front passen-
ger ’s side)
. Driver ’s seat position sensor
. Front passenger ’s seatbelt tension
sensor. Front passenger ’s occupant detection
system weight sensor. Front passenger ’s occupant detection
control module .
Front passenger ’s frontal airbag ON
and OFF indicator. All related wiring
WARNING
If the warning light exhibits any of
the following conditions, there may
be a malfunction in the seatbelt
pretensioners and/or SRS airbag
system. Immediately take your vehi-
cle to your nearest SUBARU dealer
to have the system checked. Unless
checked and properly repaired, the
seatbelt pretensioners and/or SRS
airbag will not operate properly in
the event of a collision, which may
increase the risk of injury. . Flashing or flickering of the warn-
ing light
. No illumination of the warning
light when the ignition switch is
first turned to the “ON ”position
. Continuous illumination of the
warning light
. Illumination of the warning light
while driving &
System servicing
WARNING
. When discarding a seatbelt re-
tractor assembly or scrapping
the entire vehicle damaged by a
collision, consult your SUBARU
dealer.
. Tampering with or disconnecting
the system ’s wiring could result
in accidental activation of the
seatbelt pretensioner and/or
SRS airbag or could make the
system inoperative, which may
result in serious injury. The wir-
ing harnesses of the seatbelt
pretensioner and SRS airbag
systems are covered with yellow
insulation and the connectors of
the system are yellow for easy
identification. Do not use electri-
cal test equipment on any circuit
related to the seatbelt preten-
sioner and SRS airbag systems.
For required servicing of the
seatbelt pretensioner, see your
nearest SUBARU dealer.
Seat, seatbelt and SRS airbags
1-21
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1-38Seat, seatbelt and SRS airbags
! Components
1) Airbag control module (including impact
sensors)
2) Frontal airbag module (Driver ’s side)
3) Frontal airbag module (Front passen- ger’s side)
4) Front sub sensor (Left-hand side)
5) Front sub sensor (Right-hand side)
6) Side airbag module (Driver ’s side)
7) Side airbag module (Front passenger ’s
side)
8) Side airbag sensor (Center pillar left- hand side)
9) Side airbag sensor (Center pillar right- hand side)
10) Airbag wiring (Yellow)
11) Seatbelt pretensioner (Driver ’s side)
12) Seatbelt pretensioner (Front passenger ’s
side)
13) Seatbelt buckle switch (Front passen- ger’s side)
14) Seatbelt buckle switch (Driver ’s side)
15) Driver ’s seat position sensor
16) Front passenger ’s seatbelt tension sen-
sor
17) Front passenger ’s occupant detection
system weight sensor
18) Front passenger ’s occupant detection
control module
19) Front passenger ’s frontal airbag ON and
OFF indicator
20) SRS airbag system warning light

1-56Seat, seatbelt and SRS airbags
ger’s side)
. Side airbag sensor (Center pillar right-
hand side) . Side airbag sensor (Center pillar left-
hand side). Side airbag module (Driver ’s side)
. Side airbag module (Front passenger ’s
side). Seatbelt pretensioner (Driver ’s side)
. Seatbelt pretensioner (Front passen-
ger ’s side)
. Seatbelt buckle switch (Driver ’s side)
. Seatbelt buckle switch (Front passen-
ger ’s side)
. Driver ’s seat position sensor
. Front passenger ’s seatbelt tension
sensor. Front passenger ’s occupant detection
system weight sensor. Front passenger ’s occupant detection
control module. Front passenger ’s frontal airbag ON
and OFF indicator. All related wiring
WARNING
If the warning light exhibits any of
the following conditions, there may
be a malfunction in the seatbelt
pretensioners and/or SRS airbag system. Immediately take your vehi-
cle to your nearest SUBARU dealer
to have the system checked. Unless
checked and properly repaired, the
seatbelt pretensioners and/or SRS
airbag will not operate properly in
the event of a collision, which may
increase the risk of injury. .
Flashing or flickering of the warn-
ing light
. No illumination of the warning
light when the ignition switch is
first turned to the “ON ”position
. Continuous illumination of the
warning light
. Illumination of the warning light
while driving
& SRS airbag system servicing
WARNING
. When discarding an airbag mod-
ule or scrapping the entire vehi-
cle damaged by a collision, con-
sult your SUBARU dealer.
. The SRS airbag has no user-
serviceable parts. Do not use
electrical test equipment on any
circuit related to the SRS airbag system. For required servicing of
the SRS airbag, see your nearest
SUBARU dealer. Tampering with
or disconnecting the system
’s
wiring could result in accidental
inflation of the SRS airbag or
could make the system inopera-
tive, which may result in serious
injury. The wiring harnesses of
the SRS airbag system are cov-
ered with yellow insulation and
system connectors are yellow for
easy identification.
CAUTION
If you need service or repair in areas
listed in the following, have an
authorized SUBARU dealer perform
the work. The SRS airbag control
module, impact sensors and airbag
modules are stored in these areas. . Under the center console
. Inside each front fender
. Steering wheel and column and
nearby areas
. Top of the dashboard on front
passenger ’s side and nearby
areas
. Each front seat and nearby area

.Inside each center pillar
In the event that the SRS airbag is
deployed, replacement of the system
should be performed only by an author-
ized SUBARU dealer. When the compo-
nents of the SRS airbag system are
replaced, use only genuine SUBARUparts.
To ensure their long-term reliability, the
SRS airbags must be inspected by a
SUBARU dealer ten years after the date
of manufacture, which is shown on the
certification plate attached to the driver ’s
doorjamb. NOTE
In the following cases, contact your
SUBARU dealer as soon as possible. . The front part of the vehicle was
involved in an accident in which only
the driver ’s SRS frontal airbag or both
driver ’s and front passenger ’sSRS
frontal airbags did not deploy.. The pad section of the steering
wheel or front passenger ’s frontal air-
bag cover is scratched, cracked, or
otherwise damaged.
In addition, if your vehicle is equipped
with SRS side airbags, contact your
SUBARU dealer as soon as possible in the following cases. .
Either center pillar or a nearby area
of the vehicle was involved in an
accident in which the SRS side airbag
did not deploy.. The fabric or leather of either front
seatback is cut, frayed, or otherwisedamaged.
& Precautions against vehicle modification
WARNING
. To avoid accidental activation of
the system or rendering the sys-
tem inoperative, which may re-
sult in serious injury, no modifi-
cations should be made to any
components or wiring of the SRS
airbag system.
This includes following modifica- tions: . Installation of custom steering
wheels
. Attachment of additional trim
materials to the dashboard
. Installation of custom seats
. Replacement of seat fabric or
leather .
Installation of additional fabric
or leather on the front seat
. Installation of additional elec-
trical/electronic equipment
such as a mobile two-way
radioonorneartheSRS
airbag system components
and/or wiring is not advisable.
This could interfere with prop-
er operation of the SRS airbagsystem.CAUTION
Do not perform any of the following
modifications. Such modifications
can interfere with proper operation
of the SRS airbag system. . Attachment of any equipment
(bush bar, winches, snow plow,
skid plate, etc.) other than genu-
ine SUBARU accessory parts to
the front end.
. Modification of the suspension
system or front end structure.
. Installation of a tire of different
size and construction from the
tires specified on the vehicle
placard attached to the driver ’s
door pillar or specified for indivi-
dual vehicle models in this Own-
Seat, seatbelt and SRS airbags
1-57
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for your hitch and trailer.
WARNING
Always use safety chains between
your vehicle and the trailer. Towing a
trailer without safety chains could
create a traffic safety hazard if the
trailer separates from the hitch due
to coupling damage or hitch balldamage.
! Side mirrors
After hitching a trailer to your vehicle,
check that the standard side mirrors
provide a good rearward field of view
without significant blind spots. If significant
blind spots occur with the vehicle ’s stan-
dard side mirrors, use towing mirrors that conform with Federal, state/province and/
or other applicable regulations. !
Trailer lights
Connection of trailer lights to your vehi- cle ’s electrical system requires modifica-
tions to the vehicle ’s lighting circuit to
increase its capacity and accommodate
wiring changes. To ensure the trailer lights
are connected properly, please consult
your SUBARU dealer. Check for proper
operation of the turn signals, the brake
lights and parking lights each time you
hitch up.
CAUTION
Direct splicing or other improper
connection of trailer lights may
damage your vehicle ’s electrical
system and cause a malfunction of
your vehicle ’s lighting system.
! Tires
Make sure that all the tires on your vehicle
are properly inflated to the pressure
specified on the tire placard located on
the left center pillar of your vehicle.
Trailer tire condition, size, load rating and
proper inflation pressure should be in
accordance with the trailer manufacturer ’s specifications.
In the event your vehicle gets a flat tire
when towing a trailer, ask a commercial
road service to repair the flat tire.
If you carry a regular size spare tire in your
vehicle or trailer as a precaution against
getting a flat tire, be sure that the spare
tire is firmly secured.
WARNING
Never tow a trailer when the tem-
porary spare tire is used. The tem-
porary spare tire is not designed to
sustain the towing load. Use of the
temporary spare tire when towing
can result in failure of the spare tire
and/or less stability of the vehicle.
& Trailer towing tips
CAUTION
. Never exceed 45 mph (72 km/h)
when towing a trailer in hilly
country on hot days.
. When towing a trailer, steering,
stability, stopping distance and
braking performance will be dif-
ferent from normal operation. For Driving tips
8-25
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11-4Maintenance and service
guard against getting oil or fluids
in your eyes. If something does
get in your eyes, thoroughly
wash them out with clean water.
. Do not tamper with the wiring of
the SRS airbag system or seat-
belt pretensioner system, or at-
tempt to take its connectors
apart, as that may activate the
system or it can render it inop-
erative. The wiring and connec-
tors of these systems are yellow
for easy identification. NEVER
use a circuit tester for thesewiring.
If your SRS airbag or seatbelt
pretensioner needs service, con-
sult your nearest SUBARU deal-
er.
& Before checking or servicing
in the engine compartment
WARNING
. Always stop the engine and set
the parking brake firmly to pre-
vent the vehicle from moving.
. Always let the engine cool down.
Engine parts become very hot
when the engine is running and remain hot for some time after
the engine is stopped.
. Do not spill engine oil, engine
coolant, brake fluid or any other
fluid on hot engine components.
This may cause a fire.
. Always remove the key from the
ignition switch. When the ignition
switch is in the “ON ”position,
thecoolingfanmayoperate
suddenly even when the engine
is stopped.
& When you do checking or
servicing in the engine com-
partment while the engine isrunning
WARNING
A running engine can be dangerous.
Keep your fingers, hands, clothing,
hair and tools away from the cooling
fan, belts and any other moving
engine parts. Removing rings,
watches and ties is advisable. Engine hood
To open the hood:
1. If the wiper blades are lifted off the
windshield, return them to their originalpositions.
2. Pull the hood release knob under the
instrument panel.

11-42Maintenance and service
1) Cap
2) Upper level
3) Lower level
It is unnecessary to periodically check the
battery fluid level or periodically refill with
distilled water.
However, if the battery fluid level is below
the lower level, remove the cap. Fill to the
upper level with distilled water.
CAUTION
Never use more than 10 amperes
when charging the battery because
it will shorten battery life. Fuses
CAUTION
Never replace a fuse with one hav-
ing a higher rating or with material
other than a fuse because serious
damage or a fire could result.
The fuses are designed to melt during an
overload to prevent damage to the wiring
harness and electrical equipment. The
fuses are located in two fuse boxes.
One is located under the instrument panel
behind the coin tray on the driver ’s seat
side.
To remove the coin tray, open the cover
and pull the coin tray out.
The other one is housed in the engine compartment.

11-44Maintenance and service
Main fuse
Main fuse box
The main fuses are designed to melt
during an overload to prevent damage to
the wiring harness and electrical equip-
ment. Check the main fuses if any
electrical component fails to operate (ex-
cept the starter motor) and other fuses are
good. A melted main fuse must be
replaced. Use only replacements with the
same specified rating as the melted main
fuse. If a main fuse blows after it is
replaced, have the electrical system
checked by your nearest SUBARU dealer. Installation of accessories
Always consult your SUBARU dealer
before installing fog lights or any other
electrical equipment in your vehicle. Such
accessories may cause the electronic
system to malfunction if they are incor-
rectly installed or if they are not suited for
the vehicle.