Subaru Legacy (2005 year). Service manual — part 926
LIGHTING SYSTEM
LI
Page
General Description . . . . . . . . . . . . . . . . . . . . . 2
Headlight and Tail Light System . . . . . . . . . . . . . . . . .3
Front Fog Light System. . . . . . . . . . . . . . . . . . . ...4
Rear Fog Light System . . . . . . . . . . . . . . . . . . . ...5
Turn Signal Light and Hazard Light System. . . . . . . . . . . . 6
Back-up Light System . . . . . . . . . . . . . . . . . . . . .7
Stop Light System . . . . . . . . . . . . . . . . . . . . . ...8
Room Light System. . . . . . . . . . . . . . . . . . . . . .9
Combination Switch (Light) . . . . . . . . . . . . . . . . . ...10
Headlight Beam Leveler System. . . . . . . . . . . . . . . ...12
Combination Base Switch Assembly. . . . . . . . . . . . . . .13
Headlight Assembly . . . . . . . . . . . . . . . . . . . . ..14
Headlight Bulb. . . . . . . . . . . . . . . . . . . . . . ...18
Front Turn Signal Light Bulb . . . . . . . . . . . . . . . . . .19
Clearance/Parking Light Bulb. . . . . . . . . . . . . . . . . 20
Front Fog Light Assembly . . . . . . . . . . . . . . . . . . .21
Front Fog Light Bulb. . . . . . . . . . . . . . . . . . . . ..22
Rear Fog Light . . . . . . . . . . . . . . . . . . . . . . ..23
Side Turn Signal Light Assembly . . . . . . . . . . . . . . . ..24
Rear Combination Light Assembly. . . . . . . . . . . . . . . 25
Tail/Stop Light Bulb . . . . . . . . . . . . . . . . . . . . ...26
Rear Turn Signal Light Bulb . . . . . . . . . . . . . . . . . ..27
Back-up Light Assembly. . . . . . . . . . . . . . . . . . . 28
Back-up Light Bulb . . . . . . . . . . . . . . . . . . . . . 29
Rear Fog Light Bulb . . . . . . . . . . . . . . . . . . . . ..30
License Plate Light Assembly . . . . . . . . . . . . . . . . ...31
License Plate Light. . . . . . . . . . . . . . . . . . . . . 32
High-mounted Stop Light . . . . . . . . . . . . . . . . . . ..33
Spot Map Light . . . . . . . . . . . . . . . . . . . . . . ..34
Room Light. . . . . . . . . . . . . . . . . . . . . . . . 35
Luggage Room Light. . . . . . . . . . . . . . . . . . . . .36
Trunk Room Light. . . . . . . . . . . . . . . . . . . . . ..37
Glove Box Light. . . . . . . . . . . . . . . . . . . . . . .38
Door Step Light . . . . . . . . . . . . . . . . . . . . . . .39
Ignition Switch Illumination. . . . . . . . . . . . . . . . . . 40
LI-2
LIGHTING SYSTEM
General Description
1. General Description
A: SPECIFICATION
B: CAUTION
• Before removing or installing parts, always dis-
connect the battery ground cable from battery.
When replacing the audio, control module and oth-
er parts provided with memory functions, record the
memory contents before disconnecting the battery
ground cable. Otherwise, the memory will be
erased.
• Reassemble the parts in the reverse order of dis-
assembly procedure unless otherwise indicated.
• Adjust parts to the given specifications.
• Connect the connectors securely during reas-
sembly.
• After reassembly, make sure functional parts op-
erate smoothly.
WARNING:
• The air bag system wiring harness is routed
near electrical parts and switches. All air bag
system wiring harnesses and connectors are
yellow. Do not use the electrical test equipment
on these circuits.
• Be careful not to damage the air bag system
wiring harness when servicing electrical parts
and switches.
C: PREPARATION TOOL
1. GENERAL TOOL
Headlight
Halogen type low beam
12 V — 55 W
Halogen type high beam
12 V — 60 W
Front turn signal light
12 V — 21 W
Clearance/parking light
12 V — 5 W
Front fog light
12 V — 55 W
Side turn signal light
12 V — 2.7 W (LED)
Rear combination light
Sedan
Tail/stop light (Model with
rear fog light)
12 V — 5/21 W
Tail light (Model without rear
fog light)
12 V — 5/21 W
Stop light (Model without
rear fog light)
12 V — 21 W
Wagon
Tail/stop light
12 V — 5/21 W
Turn signal light
12 V — 21 W
Back-up light
Sedan
12 V — 16 W
Wagon
12 V — 21 W
License plate light
12 V — 5 W
Rear fog light
Sedan
12 V — 21 W
Wagon
12 V — 2 W (LED)
High-mounted stop light
Sedan
12 V — 21 W
Wagon
12 V — 1.3 W (LED)
Interior light
12 V — 8 W
Spot map light
12 V — 8 W
Luggage room light
12 V — 13 W
Trunk room light
12 V — 5 W
Glove box light
12 V — 1.4 W
Door step light
12 V — 3.5 W
TOOL NAME
REMARKS
Circuit tester
Used for measuring resistance and voltage.
LI-3
LIGHTING SYSTEM
Headlight and Tail Light System
2. Headlight and Tail Light Sys-
tem
A: WIRING DIAGRAM
1. HALOGEN TYPE HEADLIGHT
<Ref. to WI-244, WIRING DIAGRAM, Headlight
System.>
2. CLEARANCE LIGHT AND ILLUMINA-
TION LIGHT
<Ref. to WI-255, WIRING DIAGRAM, Clearance
Light and Illumination Light System.>
B: INSPECTION
1. HEADLIGHT SWITCH
<Ref. to LI-10, INSPECTION, Combination Switch
(Light).>
2. HEADLIGHT RELAY
Measure the resistance between headlight relay
terminals when connecting terminal No. 4 to battery
positive terminal and terminal No. 3 to battery
ground terminal.
3. TAIL AND ILLUMINATION RELAY
Measure the resistance between tail and illumina-
tion relay terminals when connecting terminal No. 4
to battery positive terminal and terminal No. 3 to
battery ground terminal.
Current
Terminal No.
Standard
Flow
1 and 2
Less than 1
Ω
No flow
More than 1 M
Ω
LI-00001
(1)
(2)
(1)
(4)
(2)
(3)
(3)
(4)
Current
Terminal No.
Standard
Flow
1 and 2
Less than 1
Ω
No flow
More than 1 M
Ω
LI-00001
(1)
(2)
(1)
(4)
(2)
(3)
(3)
(4)
LI-4
LIGHTING SYSTEM
Front Fog Light System
3. Front Fog Light System
A: WIRING DIAGRAM
1. FRONT FOG LIGHT
<Ref. to WI-248, WIRING DIAGRAM, Front Fog
Light System.>
B: INSPECTION
1. FRONT FOG LIGHT SWITCH
Measure the resistance between front fog light
switch terminals.
<Ref. to LI-10, INSPECTION, Combination Switch
(Light).>
2. FRONT FOG LIGHT RELAY
Measure the resistance between front fog light re-
lay terminals when connecting terminal No. 4 to
battery positive terminal and terminal No. 3 to bat-
tery ground terminal.
Current
Terminal No.
Standard
Flow
1 and 2
Less than 1
Ω
No flow
More than 1 M
Ω
LI-00001
(1)
(2)
(1)
(4)
(2)
(3)
(3)
(4)
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