Mitsubishi Galant (2004+). Manual - part 1467

HEADLIGHT, FRONT SIDE MARKER LIGHT AND POSITION LIGHT ASSEMBLY

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CHASSIS ELECTRICAL

54A-111

HEADLIGHT, FRONT SIDE MARKER LIGHT AND POSITION 

LIGHT ASSEMBLY

HEADLIGHT DIAGNOSIS

M1542010500768

The headlights are controlled by the Simplified Wir-
ing System (SWS). For troubleshooting, refer to 
GROUP 54B, SWS Diagnosis 

− Symptom Chart 

P.54B-59

.

ON-VEHICLE SERVICE

HEADLIGHT AIMING

M1542000900549

PRE-AIMING INSTRUCTIONS

1. Inspect for badly rusted or faulty headlight assemblies.
2. These conditions must be corrected before a satisfactory 

adjustment can be made.

3. Inspect tire inflation, and adjust if it is necessary.
4. If the fuel tank is not full, place a weight in the trunk of the 

vehicle to simulate weight of a full tank [3 kg (6.5 pounds) 
per gallon].

5. There should be no other load in the vehicle other than 

driver or substituted weight of approximately 70 kg (150 
pounds) placed in driver's position.

6. Thoroughly clean headlight lenses.
7. Place the vehicle on a level floor, perpendicular to a flat 

screen 7.62 m (25.0 feet) away from the bulb center-marks 
on the headlight lens.

8. Rock vehicle sideways to allow vehicle to assume its normal 

position.

9. Bounce the front suspension through three (3) oscillations 

by applying the body weight to hood or bumper.

HEADLIGHT, FRONT SIDE MARKER LIGHT AND POSITION LIGHT ASSEMBLY

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CHASSIS ELECTRICAL

54A-112

10.Set the distance between the screen and the bulb center 

marks of the headlight as shown in the illustration.

11.Four lines of adhesive tape (or equivalent markings) are 

required on screen or wall:

(1) Position a vertical tape or mark so that it is aligned with 

the vehicle center line.

(2) Measure the distance from the center-marks on the 

headlight lens to the floor [ (reference value: 675 mm 
(26.6 inches) <except for projector type>, 732 mm (28.8 
inches) <projector type>]. Transfer the measurement to 
the screen. Horizontal tape or mark on the screen is for 
reference of vertical adjustment.

(3) Measure the distance from the center line of the vehicle 

to the center of each headlight. Transfer the 
measurement to the screen. Vertical tape or mark on the 
screen with reference to the center line of each headlight 
bulb.

AC307658

(1)

(2)

(3)

HEADLIGHT CENTER

VEHICLE CENTER  
LINE

SCREEN

(3)

7.62 m (25.0 ft)

THE CENTER 
OF HEADLIGHTS 

AC

<EXCEPT FOR PROJECTOR TYPE>

<PROJECTOR TYPE>

THE CENTER 
OF HEADLIGHTS 

HEADLIGHT, FRONT SIDE MARKER LIGHT AND POSITION LIGHT ASSEMBLY

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CHASSIS ELECTRICAL

54A-113

HEADLIGHT ADJUSTMENT

NOTE: When adjusting headlight, disconnect the other 
headlight harness.

1. The low beam headlight will project on the screen upper 

edge of the beam (cut-off).

2. Turn the adjusting screws to achieve the specified low-beam 

cut-off location on the aiming screen.

Standard value:
(Vertical direction) Horizontal center line 

± 50.5 mm (± 

2.0 inches) (0.38 degrees angle)

CAUTION

Do not cover a headlight for more than three minutes to 
prevent the plastic headlight lens deformation.
NOTE: There is no horizontal aim adjustment. Horizontal aim is 
preset and does not require adjustment. High-beam pattern 
should be correct when the low-beams are adjusted properly.

AC307659AC

VERTICAL 
ADJUSTMENT

<PROJECTOR TYPE>

<EXCEPT FOR PROJECTOR TYPE>

VERTICAL 
ADJUSTMENT

AC211806

DISTANCE OF

VERTICAL

DIRECTION

(H)

(V)

mm (in)

AC

50.5 (2.0)

50.5 (2.0)

HIGH INTENSITY ZONE

CUT OFF 

LINE

HEADLIGHT, FRONT SIDE MARKER LIGHT AND POSITION LIGHT ASSEMBLY

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CHASSIS ELECTRICAL

54A-114

LUMINOUS INTENSITY MEASUREMENT

M1542001000486

1. Set the headlights to high-beam
2. Using a photometer, and following its manufacturer's 

instruction manual, measure the headlight center intensity 
and check to be sure that the limit value is satisfied.

Limit: 40,000 cd or more {When a screen is set 18.3m 
(60 feet) ahead of the vehicle}

NOTE: When measuring the intensity, maintain an engine 
speed of 2,000 r/min, with the battery fully charged.
There may be special local regulations pertaining to headlight 
intensity. Be sure to make any adjustments necessary to satisfy 
such regulations.
If an illuminometer is used to make the measurements, convert 
its values to photometer values by using the following formula.

I =E x r

2

 Where:

• I = intensity (cd)

• E = illumination (lux)

• r = distance (m) from headlights to illuminometer

 BULB REPLACEMENT <EXCEPT FOR 
PROJECTOR TYPE>

M1542001300681

Headlight Bulb

1. When replacing the headlight bulb on the left side, remove 

the relay box.

2. Disconnect the headlight connector.
3. Remove the locking cap by twisting it counterclockwise as 

shown.

4. Remove the headlight bulb with holder.

CAUTION

Do not touch the surface of the bulb with hands or dirty 
gloves as the bulb may fail after a short time. If the surface 
does become dirty, clean it with alcohol or thinner, and let 
it dry thoroughly before installing.
5. Install a new locking cap with bulb to the headlight by 

twisting it clockwise.

AC307145

AB

LOCKING CAP

AC307144

HEADLIGHT

AB