Subaru IMPREZA GD 2007 Series Manual page 4002

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5) Remove the light bulb retaining spring to remove
the bulb.
B: INSTALLATION
Install in the reverse order of removal.
C: INSPECTION
1. HALOGEN TYPE
1) Visually check the bulb for blow out.
2) Check the bulb specification. <Ref. to LI-2,
SPECIFICATION, General Description.>
3) If NG, replace the bulb with a new part.
2. HID TYPE
CAUTION:
• Do not operate with wet hands.
• Do not touch the harness, inner headlight, or
any metallic portion of the headlight when the
light is illuminated (when the lighting switch is
turned on).
• When performing a lighting test, make sure
that the headlight is mounted on the vehicle,
and the power supply is connected to the con-
nector on the vehicle's side.
1) Check the bulb specification. <Ref. to LI-2,
SPECIFICATION, General Description.>
2) Install the normal HID bulb to test if it illuminates
properly.
3) If it does not illuminate properly, replace with a
new bulb. <Ref. to LI-19, DISPOSAL, Headlight
Bulb.>
Headlight Bulb
4) Check the HID ballast.
Check the ballast in the following methods and
judge if it can be reused or not.
(1) Perform the cold start (turning on the lights
after the headlights is gone off for 10 minutes or
more) and hot start (turning on the headlights
for more than 15 minutes → turning off the lights
for one minute → turning on the lights again)
several times and check if the headlights illumi-
nate surely.
(2) Check the lighting condition from immedi-
ately after the cold start until the stable condi-
LI-00557
tion (approx. 5 min.), to make sure that the
unstable condition (flicker etc.) does not occur.
(3) Attach the two bulbs having been used for
the same period of time to the right and left
headlights and keep the headlights for approx.
30 minutes lit. Check the difference of bright-
ness between right and left headlights.
5) If NG, replace the ballast with a new part.
D: DISPOSAL
1. HID TYPE
CAUTION:
The HID type bulb contains mercury.
When disposing, contact the SOA service cen-
ter, and dispose it according to local laws and
regulations.
LI-19
LIGHTING SYSTEM