Mitsubishi Lancer (4A9 engine). Manual — part 119

HEADLAMP

CHASSIS ELECTRICAL

54A-138

LIGHTING CONTROL SENSOR REMOVAL AND INSTALLATION

M1540108500148

REMOVAL SERVICE POINT

<<A>> LIGHTING CONTROL SENSOR REMOVAL

While pushing the clamp to the windshield side, pry
up the clamp to disengage the right and left claws

using the screwdriver (

−), and then remove the light-

ing control sensor.

AC709856AB

1

Note
: Claw positions

Section A - A

Section B - B

Section C - C

Section D - D

Optical coupler

3

D

C

B

D

C

1

1

1

Claw

Claw

Lighting control
sensor bracket

Lighting control
sensor bracket

Lighting control
sensor bracket

Lighting control
sensor bracket

Claw

Claw

Claw

Optical coupler

2

3

A

A

B

Removal Steps

1.

Lighting control sensor cover

2.

Connector

<<

A

>>

>>

A

<<

3.

Lighting control sensor

AC700066

Screwdriver (-)

AD

Claw

Lighting
control
sensor

Clamp

Push

Push

HEADLAMP

CHASSIS ELECTRICAL

54A-139

INSTALLATION SERVICE POINT

>>A<< LIGHTING CONTROL SENSOR INSTALLA-
TION

CAUTION

After executing the lighting control sensor (rain
sensor) adaptation, do not touch the lighting
control sensor (or do not move it from the fixed
position).

• Mount the lighting control sensor onto the optical

coupler, and then connect the connector.

• When reusing the lighting control sensor or when

the lighting control sensor is pushed to check the
installation condition, install the connector and
the lighting control sensor cover and wipe the
windshield thoroughly. When the windshield is
dry, execute the lighting control sensor (rain sen-
sor) adaptation. <Refer to GROUP 51

− Lighting

Control Sensor (Rain Sensor) Adaptation >.

NOTE: Be careful not to touch the lighting control
sensor receiver. (The lighting control sensor receiver
has limited resistance to oil.)

INSPECTION

HEADLAMP RELAY CHECK

M1540104000185

HEADLAMP RELAY (LO) CHECK

HEADLAMP RELAY (HI) CHECK

AC700034

2

3

4

1

AB

Headlamp relay (LO)

Battery voltage

Terminal
number

Normal
condition

At no energisation

3

− 4

No
continuity

With current supply
[terminal 2 (+), terminal 1
(

−)]

Continuity
exists (2

Ω

or less)

Battery voltage

Terminal
number

Normal
condition

At no energisation

3

− 4

No
continuity

With current supply
[terminal 2 (+), terminal 1
(

−)]

Continuity
exists (2

Ω

or less)

AC700034

2

3

4

1

AC

Headlamp relay (HI)

HEADLAMP

CHASSIS ELECTRICAL

54A-140

HEADLAMP LEVELLING SWITCH CHECK
<VEHICLES WITH HEADLAMP MANUAL
LEVELLING SYSTEM>

M1540101300187

LIGHTING CONTROL SENSOR (LAMP
SENSOR) CHECK

M1540109000146

Use M.U.T.-III to check the LIN data list as follows.
1. Under the direct sunlight, turn the ignition switch

to the ON position, and turn the lighting switch to
the auto lamp position.

2. When the lighting control sensor receiver is

covered to be darkened, it is judged normal if the
items of No. 7009: RLS Low beam "ON" request
and 7011: RLS Taillamp "ON" request change
from OFF to ON.

NOTE:

.

•

When covering the lighting control sensor
receiver, be careful not to touch the windshield
surface (where the lighting control sensor
receiver is mounted). (The lighting control sensor
receiver has limited resistance to oil.)

•

Before checking the data list by using M.U.T.-III,
wipe the windshield thoroughly and visually
check if there are foreign materials on the wind-
shield to which the lighting control sensor is
installed.

BRACKET REPAIR OF HEADLAMP
ASSEMBLY

M1540104500102

CAUTION

• If damage is present to locations other than

the repairable bracket, replace the assembly.

• Apply a tape to the area around the damaged

bracket to prevent damage.

• During repair work, be careful not to damage

the repair bracket installation bosses.

When brackets A, B and C shown in the figure are
damaged, a low-cost repair can be performed by
mounting a repair bracket.

OPERATIONS BEFORE REPAIRING
BRACKET

Remove the headlamp assembly.

REPAIR PROCEDURE OF BRACKET A

1. Cut the damaged bracket A so that it has the

larger dimension than the dimension shown in the
figure from the mounting boss seating face.

Measured
terminals

Switch
position

Resistance value
Ω

4

− 6

0

750

1

1,110

2

1,470

3

1,830

4

2,190

5

− 6

0, 1, 2, 3, 4

2,810

AC700633AB

AC802176AB

Bracket C

Bracket A

Bracket B

AC802177AB

Damage bracket A

;;;;

;;;;

AC802178AB

13.5 mm or more

5.0 mm or more

HEADLAMP

CHASSIS ELECTRICAL

54A-141

2. Smoothen the bracket cut surface using the

sandpaper.

3. Fix the repair bracket A to the headlamp assembly

using the tapping screw.

REPAIR PROCEDURE OF BRACKET B

1. Cut off the damaged bracket B.

2. Remove the remaining bracket cut surface using

the sandpaper.

3. Fix the repair bracket B to the headlamp assembly

using the tapping screw.

REPAIR PROCEDURE OF BRACKET C

1. Cut the damaged bracket C so that it has the

dimension shown in the figure.

2. Smoothen the bracket cut surface using the

sandpaper.

3. Fix the repair bracket C to the headlamp

assembly using the tapping screw.

OPERATIONS AFTER REPAIRING
BRACKET

1. Mount the headlamp assembly to the vehicle.
2. Check that the headlamp assembly does not

vibrate during driving.

3. Check whether each lamp built in the headlamp

assembly and the headlamp levelling system are
properly operated.

AC802179AB

Tapping
screw

Repair bracket A

AC802180AB

Damage bracket B

;;;

;;

;

;;

;;

AC802181

AC802182 AB

Tapping
screw

Repair bracket B

AC802183AB

Damage bracket C

;;;

;;;

AC802184AB

42 mm or more

12 mm or less

AC802185AB

Tapping
screw

Repair bracket C