Mitsubishi Outlander (2013+). Manual - part 650

MB991910

MB991826

MB991955

MB991911

MB991824

MB991827

MB991825

a

b

c

d

e

f

DO NOT USE

HEADLAMP

CHASSIS ELECTRICAL

54A-85

MB991955

a. MB991824
b. MB991827
c. MB991910
d. MB991911
e. MB991825
f. MB991826

M.U.T.-III 
sub-assembly

a. Vehicle 

Communicati
on Interface 
(V.C.I.)

b. M.U.T.-III 

USB cable

c. M.U.T.-III 

main harness 
A (Vehicles 
with CAN 
communicatio
n system)

d. M.U.T.-III 

main harness 
B (Vehicles 
without CAN 
communicatio
n system)

e. M.U.T.-III 

measure 
adapter

f. M.U.T.-III 

trigger 
harness

CAUTION

For vehicles with CAN 
communication, use M.U.T.-III 
main harness A to send 
simulated vehicle speed. If you 
connect M.U.T.-III main harness B 
instead, the CAN communication 
does not function correctly.
Diagnosis code, service data and 
actuator test check.

MB991223

a

d

c

b

DO NOT USE

BA

MB991223

a. MB991219
b. MB991220
c. MB991221
d. MB991222

Harness set

a. Check 

harness

b. LED harness
c. LED harness 

adapter

d. Probe

Continuity check and voltage 
measurement at harness wire or 
connector

a. For checking connector pin 

contact pressure

b. For checking power supply 

circuit

c. For checking power supply 

circuit

d. For connecting a locally sourced 

tester

Tool

Number

Name

Use

MB992006

HEADLAMP

CHASSIS ELECTRICAL

54A-86

SERVICE PRECAUTIONS <VEHICLES 
WITH DISCHARGE HEADLAMP>

M1540100300292

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

MB992006

Extra fine probe

Continuity check and voltage 
measurement at harness wire or 
connector

Tool

Number

Name

Use

HEADLAMP

CHASSIS ELECTRICAL

54A-87

DANGER

•

Do not touch the socket and the connec-
tor while the headlamps are on. High volt-
age is applied to the bulb socket and 
connector during headlamp 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 headlamps while the 
headlamp control unit or the bulb is 
removed. If the headlamps are turned ON 
with the headlamp control unit or bulb 
removed, the operator may get burned by 
the bulb of a high temperature. The opera-
tor may be burnt or dead due to an elec-
tric 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 headlamp bulb. 
(Do not illuminate the headlamp using other 
than the vehicle power supply.) If the head-
lamp bulb illuminates without fitting it in the 
headlamp unit, it may burst due to rise in its 
internal pressure.

CAUTION

When reusing the headlamp control unit with the 
discharge headlamp damaged, observe the 
inspection procedures for the related parts of the 
discharge headlamp before determining the 
reusability of the controller. If you fail to observe 
"How to check discharge headlamp compo-
nents," the vehicle may be damaged.

CHECKING PROCEDURE FOR DIS-
CHARGE HEADLAMP RELATED PARTS 
(INSPECTION PROCEDURE WHEN REUS-
ING THE HEADLAMP CONTROL UNIT)

VISUAL CHECK OF HEADLAMP CON-

TROL UNIT (CASE)

If any of the check items below are found, replace 
the headlamp control unit.

Items to be checked

Why the headlamp control unit should be 
replaced

Obvious deformation (warping, twisting, dents, nicks, 
chipped edges) of headlamp control unit 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.

HEADLAMP

CHASSIS ELECTRICAL

54A-88

CHECK OF WIRING HARNESS BETWEEN 
HEADLAMP CONTROL UNIT AND BULB

If any of the check items below are found, replace 
the headlamp control unit.

DANGER

If the wiring harness between the headlamp 
control unit 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 elec-
tric shock by high voltage.

Items to be checked

Why the headlamp control unit 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 OF HEADLAMP CONTROL UNIT 
OPERATION

If any of the abnormalities below are found, replace 
the headlamp control unit.

NOTE: Ensure that the headlamp 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 
headlamp control unit. However, some internal 
breakage may not be found.

Check item (Check of illumination operation)

With the headlamp bulb in the cold state (with the lamp turned off for 10 minutes or more) and in warm state 
(after the lamp is illuminated for 15 minutes or more, it is turned off for 1 minute), turn ON and OFF the 
headlamp several times, and then check that the headlamp illuminates without fail.

Observe the headlamps until they illuminate steadily (approximately 5 minutes after switching on them). 
Check that the headlamps do not flash or flicker.

Turn on the headlamps for 30 minutes. Check that the brightness is the same between right and left lamps.

Turn on the headlamps for 30 minutes. Check that the headlamps do not flash or flicker for 30 minutes.

TROUBLESHOOTING PROCEDURE FOR 
DISCHARGE HEADLAMP (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 

"Symptom 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

Item to be checked

Trouble symptom

The headlamps do not 
illuminate.

The headlamps flicker.

The headlamps are dim.

Fuse

1

−

−