Mitsubishi Outlander GS45X. Manual — part 32

HEADLIGHT

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CHASSIS ELECTRICAL

54A-125

SERVICE PRECAUTIONS DISCHARGE HEADLIGHT

M1540100300162

Before checking the discharge headlight related
parts, be sure to read the following warnings and pre-
cautions carefully, and then perform necessary oper-
ations.

DANGER

•

Do not touch the socket and the connec-
tor while the headlights are on. High volt-
age is applied to the bulb socket and
connector during headlight operation.
The operator may be burnt or dead due to
an electric shock by high voltage.

•

Do not attempt to use a tester to check
them. If the bulb socket and connectors
should be inspected using a tester, the
operator may be burnt or dead due to an
electric shock by high voltage.

•

Do not turn ON the headlights while the
controller or the bulb is removed. If the
headlights are turned ON with the control-
ler or bulb removed, the operator may get
burned by the high temperature of the
bulb. The operator may be burnt or dead
due to an electric shock by high voltage.

•

Before service work, turn the lighting
switch OFF and disconnect the battery
terminal and the controller connector in a
dry place. Do not touch the components
with wet hands. If you work on the compo-
nents with wet hands or in wet conditions,
the operator may be burnt or dead due to
an electric shock by high voltage.

WARNING

Do not illuminate the bare headlight bulb.
(Do not illuminate the headlight using other
than the vehicle power supply.) If the head-
light bulb illuminates without fitting it in the
headlight unit, it may burst due to rise in its
internal pressure.

CAUTION

When reusing the controller with the discharge
headlight damaged, observe the inspection pro-
cedures for the related parts of the discharge
headlight before determining the reusability of
the controller. If you fail to observe "How to
check discharge headlight components," the
vehicle may be damaged.

HEADLIGHT

TSB Revision

CHASSIS ELECTRICAL

54A-126

1. CHECKING PROCEDURE FOR DISCHARGE HEADLIGHT RELATED PARTS
(INSPECTION PROCEDURE WHEN REUSING THE CONTROLLER)

.

1

− 1 VISUAL CHECK OF CONTROLLER (CASE)

If any of the check items below are found, replace
the controller.

.

1

− 2 CHECK OF WIRING HARNESS BETWEEN CONTROLLER AND BULB

If any of the check items below are found, replace
the wiring harness between the controller and the
bulb.

DANGER

If the wiring harness between the controller
and the bulb is damaged, always replace it.
Attempting to repair the wiring harness may
cause a melted harness wire, or may result in
a burn or death due to an electric shock by
high voltage.

.

1

− 3 CHECK OF CONTROLLER OPERATION

If any of the abnormalities below are found, replace
the controller.

NOTE: Ensure that the headlight control system and
its circuit (power supply control at engine start and
during steady illumination, high-voltage generating
circuit, etc.) are working normally. Then, check
whether any internal breakage has occurred in the
controller. However, some internal breakage may not
be found.

Items to be checked

Why the controller should be replaced

Obvious deformation (warping, twisting, dents, nicks,
chipped edges) of controller case

The printed circuit board or the element(s) may be
cracked

Damaged connector (chipped or cracked plastics, or
deformed terminal)

The damaged part(s) may cause poor connection or
short circuit.

Items to be checked

Why the controller should be replaced

Wiring harness shield damaged

Abnormal noise may cause.

Damaged connector (chipped or cracked plastics, or
deformed terminal)

The damaged part(s) may cause poor connection or
short circuit.

Check item (Check of illumination operation)
With the headlight bulb in the cold state (with the light turned off for 10 minutes or more) and in warm state
(after the light is illuminated for 15 minutes or more, it is turned off for 1 minute), turn ON and OFF the
headlight several times, and then check that the headlight illuminates without fail.
Observe the headlights until they illuminate steadily (approximately five minutes after switching them on).
Check that the headlights do not flash or flicker.
Turn on the headlights for thirty minutes. Check that the brightness is the same between right and left lights.
Turn on the headlights for thirty minutes. Check that the headlights do not flash or flicker for thirty minutes.

HEADLIGHT

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CHASSIS ELECTRICAL

54A-127

2. Troubleshooting procedure for discharge headlight (diagnostic procedure for
malfunctions)

1. Check that the connectors are connected

securely and the fuse has not been blown.

2. Before troubleshooting, read through the "Symp-

tom chart" to understand what and how you
should do. Follow all the procedures carefully.

3. The components should be checked with their

connectors disconnected.

SYMPTOM CHART

NOTE:

.

1. The numbers indicate the sequence in which the

component is checked.

2. For the troubleshooting of other than the above,

refer to Trouble Symptom Chart

P.54A-153

.

3. If ETACS-ECU fails, only the low-beam head-

lights will illuminate as a fail-safe measure.

DIAGNOSTIC TROUBLE CODE CHART

M1540101400429

CAUTION

On troubleshooting, if the ignition switch is
turned ON while disconnecting connector(s),
diagnostic trouble code(s) associated with other
system may be set. On completion, confirm all
systems for diagnostic trouble code(s). If diag-
nostic trouble code(s) are set, erase them all.
ETACS-ECU

LIN

NOTE: *: Rain light sensor (Lighting control sensor)

Item to be checked

Trouble symptom
The headlights do not
illuminate.

The headlights flicker.

The headlights are dim.

Fuse

1

-

-

Wiring harness and
connector

2

1

-

Column switch

3

-

-

Bulb

4

2

1

Controller

5

3

2

ETACS-ECU

6

4

-

Diagnostic trouble code No. Diagnostic item

Reference page

B16A2

Blown turn-signal light (LH) bulb

P.54A-128

B16A3

Turn-signal light (LH) short circuit

P.54A-135

B16A4

Blown turn-signal light (RH) bulb

P.54A-139

B16A5

Turn-signal light (RH) short circuit

P.54A-146

Diagnostic trouble code No. Diagnostic item

Reference page

L0432

RLS* RS adaptation error

P.54A-149

L0434

RLS* rain sensor error

P.54A-151

L0436

RLS* light sensor error

HEADLIGHT

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CHASSIS ELECTRICAL

54A-128

DIAGNOSTIC TROUBLE CODE PROCEDURES

DTC B16A2: Blown turn-signal light (LH) bulb

DOOR
MIRROR
ASSEMBLY
(LH)

Turn-Signal Light Circuit (LH))

ETACS-
ECU

REAR
COMBINATION
LIGHT
(TURN: LH)

HEADLIGHT
ASSEMBLY
(TURN: LH))

SIDE TURN-
SIGNAL LIGHT
(LH)

<FENDER TYPE>

<DOOR MIRROR TYPE>

AC901112

Connectors: A-10, A-37

A-10 (B)

AP

A-37 (B)

AC901075BG

Connectors: C-126, C-127

C-127 (BR)

C-126