Mitsubishi Outlander GS45X. Manual — part 39
HEADLIGHT
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CHASSIS ELECTRICAL
54A-153
TROUBLE SYMPTOM CHART
M1540102100625
Trouble symptom
Inspection
Procedure No.
Reference
page
Headlight and taillight
None of headlights (low-beam) illuminates. 1
None of headlights (high-beam)
illuminates.
2
The headlights illuminate at low-beam
(high-beam does not illuminate) regardless
of the lighting switch positions.
3
Headlights do not illuminate when the
passing switch is operate.
4
One of the headlights does not illuminate.
5
High-beam indicator light does not
illuminate normally.
6
The headlight automatic shutdown function
does not work normally.
7
Daytime running light function does not
work normally. <Halogen type headlight>
8
Daytime running light function does not
work normally. <Discharge type headlight>
One of the position lights, side marker
lights or the license plate lights does not
illuminate.
9
Turn-signal light
None of turn-signal lights illuminates.
10
The comfort flashing function does not
work normally.
11
The turn-signal indicator lights do not
illuminate.
12
The welcome light function does not work normally.
13
The coming home light function does not work normally.
14
HEADLIGHT
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CHASSIS ELECTRICAL
54A-154
SYMPTOM PROCEDURES
Inspection Procedure 1: None of headlights (low-beam) illuminates.
CAUTION
Whenever the ECU is replaced, ensure that the
power supply circuit, the ground circuit and the
communication circuit are normal.
Headlight Relay (Low-Beam) Circuit <Halogen Type>
ETACS-ECU
FUSIBLE
LINK
36
HEADLIGHT
RELAY (LOW)
FEED EFFECT
TRANSISTOR
RELAY BOX
ENGINE
COMPARTMENT
HEADLIGHT
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CHASSIS ELECTRICAL
54A-155
.
TECHNICAL DESCRIPTION (COMMENT)
If none of headlights (low-beam) illuminates, the
headlight switch input circuit, headlight relay (LOW),
or ETACS-ECU may have a problem.
.
TROUBLESHOOTING HINTS
• Malfunction of column switch
• Malfunction of headlight relay (LOW)
• Malfunction of the ETACS-ECU
• Damaged harness wires and connectors
DIAGNOSIS
Required Special Tools:
• MB992006: Extra fine probe
• MB991223: Harness set
• MB991958 Scan Tool (M.U.T.-III Sub Assembly)
Headlight Relay (Low-Beam) Circuit <Discharge Type>
ETACS-ECU
FUSIBLE
LINK
36
HEADLIGHT
RELAY (LOW)
RELAY BOX
ENGINE
COMPARTMENT
AC709504
AB
Connector: A-28X <2.4L Engine>
AC702950 AJ
Connector: A-28X <3.0L Engine>
ACA02655AW
Connector: C-312
HEADLIGHT
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CHASSIS ELECTRICAL
54A-156
• 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. Using scan tool MB991958, read the diagnostic
trouble code.
CAUTION
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958. Refer to "How to connect
scan too (M.U.T.-III)
."
(2) Turn the ignition switch to the "ON" position.
(3) Check whether the ETACS-ECU related DTC is set.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?
YES : Diagnose the ETACS-ECU. (Refer to
NO : Go to Step 2.
STEP 2. Using scan tool MB991958, check data list
Use the ETACS-ECU service data to check the signals related
to the operation of headlight function.
• Turn the headlight switch to the ON position.
Q: Does scan tool MB991958 display the items "Headlight
switch" as normal condition?
YES : Go to Step 3.
NO : Troubleshoot the ETACS-ECU. Refer to ETACS,
.
ZC501967
AC404789
AC702802
MB991824
MB991827
MB991910
Data link
connector
AB
Item No.
Item name
Normal
condition
Item 341
Headlight
switch
ON
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