Mitsubishi Outlander XL. Manual — part 985
precautions carefully, and then perform necessary
operations.
⦆
Do not touch the socket and the connector while
the headlights are on. High voltage 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 controller 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 components with wet hands or in wet
conditions, the operator may be burnt or dead
due to an electric shock by high voltage.
Do not illuminate the bare headlight bulb. (Do not
illuminate the headlight using other than the
vehicle power supply.) If the headlight bulb
illuminates without fitting it in the headlight unit,
it may burst due to rise in its internal pressure.
When reusing the controller with the discharge
headlight damaged, observe the inspection
procedures 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.
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.
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.
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.
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.
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.
LIGHTING
54Ac-13
DIAGNOSIS
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.
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.
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
"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 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
-
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.54Ac-25.
3.
If ETACS-ECU fails, only the low-beam headlights
will illuminate as a fail-safe measure.
DIAGNOSTIC TROUBLE CODE CHART
M15410900007USA0000010000
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 diagnostic trouble
code(s) are set, erase them all.
54Ac-14
LIGHTING
DIAGNOSIS
Diagnostic trouble code
No.
Diagnostic item
Reference page
B16A2
Blown turn-signal light (LH) bulb
B16A3
Turn-signal light (LH) short circuit
B16A4
Blown turn-signal light (RH) bulb
B16A5
Turn-signal light (RH) short circuit
DIAGNOSTIC TROUBLE CODE PROCEDURES
DTC B16A2: Blown turn-signal light (LH) bulb
M15410900086USA0000010000
TROUBLE JUDGMENT
When the left bulb of turn-signal light is blown, the
ETACS-ECU sets DTC B16A2.
TECHNICAL DESCRIPTION (COMMENT)
The ETACS-ECU sets DTC B16A2 under the
following conditions.
⦆
If there is a malfunction to the left turn-signal light
bulb, the blown left bulb counter counts once when
the illumination of hazard or turn-signal light (left
side) is attempted.
⦆
After the bulb counter reaches "3," DTC B16A2 is
set.
TROUBLESHOOTING HINTS
⦆
Malfunction of turn-signal light bulb (left)
⦆
Malfunction of the ETACS-ECU
DIAGNOSIS
Required Special Tools:
⦆
MB991958: Scan Tool (M.U.T.-III Sub Assembly)
⦆
MB991824: Vehicle Communication Interface (V.C.I.)
⦆
MB991827: M.U.T.-III USB Cable
⦆
MB991910: M.U.T.-III Main Harness A (Vehicles with
CAN communication system)
STEP 1. Bulb check.
Check whether the left turn-signal light illuminates normally.
Q:Is the check result normal?
YES:
Go to Step 2.
NO:
Replace the bulb of turn-signal light which does not
illuminate.
LIGHTING
54Ac-15
DIAGNOSIS
STEP 2. Using scan tool MB991958, Check whether the
diagnostic trouble code is reset.
ZC501967
AC404789
ZC5019680000
MB991824
MB991827
MB991910
Data link
connector
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before
connecting or disconnecting scan tool MB991958.
(1)
Connect scan tool MB991958. Refer to "How to connect scan
tool P.54Ac-11."
(2)
Turn the ignition switch to the "ON" position.
(3)
Erase the DTC.
(4)
Turn the ignition switch from "LOCK" (OFF) position to "ON"
position.
(5)
Check whether the ETACS-ECU DTC is set.
Q:Is the DTC set?
YES:
Replace the ETACS-ECU.
NO:
The procedure is complete.
54Ac-16
LIGHTING
DIAGNOSIS
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