2005 SUBARU IMPREZA WRX wiring

1-30
Seat, seatbelt and SRS airbags
tion.
The following components are monitored by the indi- cator: y
Front sub sensor (Right hand side)
y Front sub sensor (Left hand side)
y Airbag control module (including impact sensors)
y Seatbelt pretensioner (Driver’s side)
y Seatbelt pretensioner (Passenger’s side)
y All related wiring
y And all other airbag components
If the warning light exhibits any of the following
conditions, there may be a malfunction in the
seatbelt pretensioners and/or SRS airbag sys-
tem. Immediately take your vehicle to your
nearest SUBARU dealer to have the system
checked. Unless checked and properly re-
paired, the seatbelt pretensioners and/or SRS
airbag will not operate properly in the event of
a collision, which may increase the risk of inju-
ry.yFlashing or flickering of the indicator light
y No illumination of the warning light when the
ignition switch is first turned to the “ON” posi-tion y
Continuous illumination of the warning light
yIllumination of the warning light while driving
„ System servicing
yWhen discarding a seatbelt retractor assem-
bly or scrapping the entire vehicle damaged by
a collision, consult your SUBARU dealer.y Tampering with or disconnecting the sys-
tem’s wiring could result in accidental activa-
tion of the seatbelt pretensioner and/or SRS air-
bag or could make the system inoperative,
which may result in serious injury. The wiring
harnesses of the seatbelt pretensioner and SRS
airbag systems are covered with yellow insula-
tion and the connectors of the system are yel-
low for easy identification. Do not use electrical
test equipment on any circuit related to the
seatbelt pretensioner and SRS airbag systems.
For required servicing of the seatbelt preten-
sioner, see your nearest SUBARU dealer.

1-56
Seat, seatbelt and SRS airbags
2
1
4
35
12
9
7
10
11
8
6
UG1034BB
1) Airbag control module (including
impact sensors)
2) Airbag module (driver’s side)
3) Airbag module (passenger’s
side)
4) Front sub sensor (left hand side)
5) Front sub sensor (right hand
side)
6) Side airbag module (driver’s side – if equipped)
7) Side airbag module (passen- ger’s side – if equipped)
8) Side airbag sensor (driver’s side
– if equipped)
9) Side airbag sensor (passenger’s side – if equipped)
10) Airbag wiring (yellow)
11) Seatbelt pretensioner (driver’s side)
12) Seatbelt pretensioner (passen- ger’s side)

1-74
Seat, seatbelt and SRS airbags
y
Airbag control module (including impact sensors)
y Frontal airbag module (Driver’s side)
y Frontal airbag module (Passenger’s side)
y Side airbag sensor (Driver’s side – if equipped)
y Side airbag sensor (Passenger’s side – if equipped)
y Side airbag module (Driver’s side – if equipped)
y Side airbag module (Passenger’s side – if
equipped) y Seatbelt pretensioner (Driver’s side)
y Seatbelt pretensioner (Passenger’s side)
y All related wiring
If the warning light exhibits any of the following
conditions, there may be a malfunction in the
seatbelt pretensioners and/or SRS airbag sys-
tem. Immediately take your vehicle to your
nearest SUBARU dealer to have the system
checked. Unless checked and properly re-
paired, the seatbelt pretensioners and/or SRS
airbag will not operate properly in the event of
a collision, which may increase the risk of inju-
ry. yFlashing or flickering of the indicator light
y No illumination of the warning light when the
ignition switch is first turned to the “ON” posi-tion y
Continuous illumination of the warning light
yIllumination of the warning light while driving
„ SRS airbag system servicing
yWhen discarding an airbag module or scrap-
ping the entire vehicle damaged by a collision,
consult your SUBARU dealer.y 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 re-
sult in accidental inflation of the SRS airbag or
could make the system inoperative, which may
result in serious injury. The wiring harnesses of
the SRS airbag system are covered with yellow
insulation and system connectors are yellow
for easy identification.

1-76
Seat, seatbelt and SRS airbags
should be made to any components or wiring of
the SRS airbag system.
This includes following modifications:
yInstallation of custom steering wheels
y Attachment of additional trim materials to
the dashboard y Installation of custom seats (for vehicles
with SRS side airbags only) y Replacement of seat fabric or leather (for
vehicles with SRS side airbags only)y Installation of additional fabric or leather
on the front seat (for vehicles with SRS side
airbags only)
y Installation of additional electrical/electronic
equipment such as a mobile two-way radio on
or near the SRS airbag system components
and/or wiring is not advisable. This could inter-
fere with proper operation of the SRS airbag
system.
Do not perform any of the following modifica-
tions. Such modifications can interfere with
proper operation of the SRS airbag system. y Attachment of any equipment (brush bar, winches, snow plow, skid plate, etc.) other than
genuine SUBARU accessory parts to the front
end. y
Modification of the suspension system or
front end structure. y Installation of a tire of different size and con-
struction from the tires specified on the tire
placard attached to the driver’s door jamb.y Attachment of any equipment (side steps or
side sill protectors, etc.) other than genuine
SUBARU accessory parts to the side body (for
vehicles with side airbags only).
Always consult your SUBARU dealer if you want to in-
stall any accessory parts to your vehicle.

11 - 4
Maintenance and service
the materials in the vehicle may be hazardous if
improperly used or handled, for example, bat-tery acid. y
Your vehicle should only be serviced by per-
sons fully competent to do so. Serious person-
al injury may result to persons not experienced
in servicing vehicles. y Always use the proper tools and make certain
that they are well maintained. y Never get under the vehicle supported only
by a jack. Always use a safety stands to sup-
port the vehicle. y Never keep the engine running in a poorly
ventilated area, such as a garage or other
closed areas. y Do not smoke or allow open flames around
the fuel or battery. This will cause a fire. y Because the fuel system is under pressure,
replacement of the fuel filter should be per-
formed only by your SUBARU dealer.y Wear adequate eye protection to guard
against getting oil or fluids in your eyes. If
something does get in your eyes, thoroughly
wash them out with clean water. y Do not tamper with the wiring of the SRS air-
bag system or seatbelt pretensioner system, or
attempt to take its connectors apart, as that may activate the system or it can render it inop-
erative. The wiring and connectors of these
systems are yellow for easy identification. NEV-
ER use a circuit tester for these wiring.
If your SRS airbag or seatbelt pretensioner
needs service, consult your nearest SUBARU
dealer.
„ Before checking or servicing in the en-
gine compartment
yAlways stop the engine and set the parking
brake firmly to prevent the vehicle from mov-
ing. y Always let the engine cool down. Engine
parts become very hot when the engine is run-
ning and remain hot for some time after the en-
gine is stopped.y Do not spill engine oil, engine coolant, brake
fluid or any other fluid on hot engine compo-
nents. This may cause a fire.y Always remove the key from the ignition
switch. When the ignition switch is in the “ON”
position, the cooling fan may operate suddenly

11 -6 5
Maintenance and service
– CONTINUED –
Fuses
Never replace a fuse with one having a higher
rating or with material other than a fuse be-
cause 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.
UGB088BA
UGB550BA

11 - 6 8
Maintenance and service
Main fuse
Main fuse box
The main fuses are designed to melt during an over-
load to prevent damage to the wiring harness and
electrical equipment. Check the main fuses if any elec-
trical component fails to operate (except 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 ve-
hicle. Such accessories may cause the electronic sys-
tem to malfunction if they are incorrectly installed or if
they are not suited for the vehicle.
HSB065BA