2004 SUBARU IMPREZA WRX service

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Maintenance and service
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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

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Maintenance and service
Replacing bulbs
9
81 011
14 13 12 10 11
65 4
7 123
15
1514 16
9
UGB075BB

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Maintenance and service
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Wattage Bulb No.
1) Front turn signal 12V–21W —
2) Spot light 12V–8W —
3) Room light 12V–8W —
4) Parking light 12V–5W 168
5) Low beam head light U.S. spec. WRX-STi 12V-35W D2R Except U.S. spec. WRX-STi 12V-55W H1
6) Front fog light 12V–55W H3
7) High beam head light 12V–60W 9005 (HB3)
8) Trunk room light 12V–16W W16W
9) High mount stop light Sedan
(in compartment) 12V–18W 921
(in rear spoiler) 12V–1.2W —
Wagon 12V–13W 912
10) Backup light 12V–21W 7440
11) Rear turn signal 12V–21W (Amber)—
12) Brake light 12V–21W 7440
13) Tail light 12V–21/5W 7443
14) Brake/tail light 12V–21/5W 7443
15) License plate light 12V–5W 168 16) Cargo area light 12V–13W —
Wattage Bulb No.

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Maintenance and service
!
Headlights (U.S. spec. WRX-STi)
High-intensity-discharge (HID) bulbs are used
for the low beams of the headlights on the U.S.
spec. WRX-STi. These HID bulbs use an ex-
tremely high voltage. To avoid the risk of an
electric shock and resulting serious injury, you
should not attempt to replace them. Neither
should you attempt to replace the high-beam
bulbs, remove/refit the headlight assemblies,
or remove any headlight-assembly compo-
nents. For replacement of the headlight bulbs
(low-beam and high-beam), removal and instal-
lation of the headlight assemblies, and removal
of headlight-assembly components, contact
your Subaru dealer.
! Headlight (Except U.S. spec. WRX-STi)
Halogen headlight bulbs become very hot while
in use. If you touch the bulb surface with bare
hands or greasy gloves, finger prints or grease on the bulb surface will develop into hot spots
and cause the bulb to break. If there are finger
prints or grease on the bulb surface, wipe them
away with a soft cloth moistened with alcohol.
NOTE "
If headlight aiming is required, consult your
SUBARU dealer for proper adjustment of the head-
light aim. " It may be difficult to replace the bulbs. Have
your SUBARU dealer replace the bulbs if neces-
sary. ! Low beam light bulbs
UGB516BA

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Maintenance and service
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1. Remove the bulb cover, by turning it counterclock- wise.
2. Disconnect the electrical connector. 3. Remove the retainer spring.
4. Replace the bulb, then set the retainer spring se-curely.
5. Reconnect the electrical connector.
6. Install the bulb cover.
UGB517BA
UGB518BA

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Maintenance and service
!
High beam light bulbs
1. Disconnect the electrical connector from the bulb. 2. Remove the bulb from the headlight assembly by
turning it counterclockwise.
3. Replace the bulb with new one.
4. Reconnect the electrical connector. At this time,
use care not to touch the bulb surface.
5. To install the bulb to the headlight assembly, turn it
clockwise until it clicks.
UGB519BA
UGB520BA

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Maintenance and service
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!Front turn signal light bulbs
1. Remove the bulb socket from the headlight assem-
bly by turning it counterclockwise. 2. Pull the bulb out of the socket. Install a new bulb.
3. Set the bulb socket into the headlight assembly and
turn it clockwise until it locks.
4. Install the headlight assembly and the front grille in
the reverse order of removal.
UGB536CA
UGB531BA

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Maintenance and service
!
Parking light
1) Parking light
The headlight assembly must be removed before the
parking light bulbs can be replaced. When the head-
light assembly has been removed and then rein-
stalled, it may become necessary to make a headlight
aiming adjustment. It may be difficult to replace the
bulbs. Have your SUBARU dealer replace the bulbs if
necessary. !
Before removing the headlight assembly0
1. Loosen four clips at the top of the front bumper.
1
UGB523BBUGB525BA