2003 SUBARU LEGACY wiring

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Seat, seatbelt and SRS airbags1-31
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System monitors
HB4010EC
A diagnostic system continually monitors the readiness of the seatbelt
pretensioner while the vehicle is being driven. The seatbelt preten-
sioners share the control module with the airbag system. Therefore, if
any malfunction occurs in a seatbelt pretensioner, the SRS airbag sys-
tem warning light will illuminate. The SRS airbag system warning light
will show normal system operation by lighting for about 6 seconds
when the ignition key 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 impact sensors)
Seatbelt pretensioner (Driver ’s side)
Seatbelt pretensioner (Passenger ’s side)
All related wiring
In the event of a malfunction indicated by any of following, the vehicle
should be taken promptly to your nearest SUBARU dealer to have the
system checked. Unless checked and repaired, the seatbelt preten-
sioners and airbags will not function reliably: Flashing or flickering of the indicator 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.

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System servicing
WARNING
When discarding a seatbelt retractor assembly or scrapping
the entire car damaged by a collision, consult your SUBARU deal-
er. Tampering with or disconnecting the system ’s wiring could re-
sult in accidental activation of the seatbelt pretensioner and/orairbag or could make the system inoperative, which may result in
serious injury. The wiring harnesses of the seatbelt pretensionerand SRS airbag systems are covered with yellow insulation andthe connectors of the system are yellow for easy identification.Do not use electrical test equipment on any circuit related to theseatbelt pretensioner and airbag systems. For required servicing
of the seatbelt pretensioner, see your nearest SUBARU dealer.
CAUTION
The front sub sensors are located in both front fenders and theairbag control module including the impact sensors is locatedunder the center console. If you need service or repair in those
areas or near the front seatbelt retractors, we recommend thatyou have an authorized SUBARU dealer perform the work.
NOTE If the front part of the vehicle is damaged in an accident to the extent that the seatbelt pretensioner does not operate, contactyour SUBARU dealer as soon as possible.

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Components
HB1079DB
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 Seatbelt pretensioner
(driver’ s side) 7
Seatbelt pretensioner
(passenger’ s side)
8 Side airbag module
(driver’ s side — if equipped)
9 Side airbag module
(passenger’ s side — if
equipped)
Q Side airbag sensor
(driver’ s side)
W Side airbag sensor
(passenger’ s side)
E Airbag wiring (yellow)

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SRS airbag system monitors
HB4010EC
A diagnostic system continually monitors the readiness of the SRS air-
bag system (including front seatbelt pretensioners) while the vehicle is
being driven. The SRS airbag system warning light “AIRBAG” will show
normal system operation by lighting for about 6 seconds when the igni-
tion key 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 impact sensors)
Frontal airbag module (Driver ’s side)
Frontal airbag module (Passenger ’s side)
Side airbag sensor (Driver ’s side — if equipped)
Side airbag sensor (Passenger ’s side — if equipped)
Side airbag module (Driver ’s side — if equipped)
Side airbag module (Passenger ’s side — if equipped)
Seatbelt pretensioner (Driver ’s side)
Seatbelt pretensioner (Passenger ’s side)
All related wiring
In the event of a malfunction indicated by any of following, the vehicle
should be taken promptly to your nearest SUBARU dealer to have the
system checked. Unless checked and repaired, the SRS airbags will not
function reliably:

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Flashing or flickering of the indicator 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 module or scrapping the entire car
damaged by a collision, consult 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 near-
est SUBARU dealer. Tampering with or disconnecting the sys-
tem’ s wiring could result in accidental inflation of the SRS airbag
or could make the system inoperative, which may result in seri-
ous injury. The wiring harnesses of the SRS airbag system arecovered with yellow insulation and system connectors are yellowfor easy identification.
CAUTION
If you need service or repair in areas listed below, we recommend
that you 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 (only for vehicles with SRS
side airbags) Inside each center pillar

1-64In the event that the SRS airbag is deployed, replacement of the sys-
tem should be performed only by an authorized SUBARU dealer.When the components of the SRS airbag system are replaced, useonly genuine SUBARU parts.
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 label attached to the driver
’s door.
NOTE In the following cases, contact your SUBARU dealer as soon as pos- sible. The front part of the vehicle was involved in an accident in
which the SRS frontal airbags did not deploy. The pad section of the steering wheel or front passenger ’s
frontal airbag cover is scratched, cracked, or otherwise damaged.
In addition, if your vehicle is equipped with SRS side airbags, con-tact your SUBARU dealer as soon as possible in the followingcases. 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
otherwise damaged.
Precautions against vehicle modification
WARNING
To avoid accidental activation of the system or rendering the
system inoperative, which may result in serious injury, no modifi-cations should be made to any components or wiring of the SRSairbag system.This includes following modifications: Installation of custom steering wheels
Attachment of additional trim materials to the dashboard
Installation of custom seats (only for vehicles with SRS side
airbags)

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Replacement of seat fabric or leather (only for vehicles with
SRS side airbags) Installation of additional fabric or leather on the front seat
(only for vehicles with SRS side airbags)
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 interferewith proper operation of the SRS airbag system.
CAUTION
Do not perform any of the following modifications. Such modifi-cations can interfere with proper operation of the SRS airbag sys-tem. Attachment of any equipment (brush bar, winches, snow plow,
skid plate, etc.) other than SUBARU genuine accessory parts tothe 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 tire placard attached to the driver ’s door
jamb. Attachment of any equipment (side steps or side sill protec-
tors, etc.) other than SUBARU genuine accessory parts to theside body (only for vehicles with side airbags).
Always consult your SUBARU dealer if you want to install any accessory
parts to your vehicle.

8-36Connection of trailer lights to your vehicle
’s electrical system requires
modifications 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 parkinglights each time you hitch up. n Tires
WARNING
Never tow a trailer when the temporary spare tire is used. The temporary spare tire is not designed to sustain the towing load.
Use of the temporary spare tire when towing can result in failureof the spare tire and/or less stability of the vehicle.
Make sure that all the tires on your vehicle are properly inflated. OUTBACK: The recommended cold tire pressure under trailer
towing conditions is indicated on the tire placard located under thedoor striker on the driver ’s side. Adjust the rear tire pressure to the
recommended pressure shown on the tire placard when the tires
are cold. Normal pressure should be maintained in the front tires.Other models: It is recommended to inflate the rear tires to 3 psi
(20 kPa, 0.2 kg/cm 2
) above their normal operating pressure when
the tires are cold. Normal pressure should be maintained in the
front tires.
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 pre-
caution against getting a flat tire, be sure that the spare tire is firmly
secured.