Mitsubishi Montero (2002-2004). Manual — part 335
SYMPTOM PROCEDURES
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SWS SYMPTOM PROCEDURES
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.
TECHNICAL DESCRIPTION (COMMENT)
If the wiring harness between daytime running light-
ECU connector (terminal 5) and front-ECU connector
(terminal 2) is defective when switching the headlight
to high-beam, both the headlight (high-beam) and
the headlight (low-beam in a reduced state) light up.
.
TROUBLESHOOTING HINTS
• The daytime running light-ECU may be defective
• The wiring harness or connectors may have
loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector
DIAGNOSIS
Required Special Tool:
• MB991223: Harness Set
STEP 1. Check front-ECU connector A-07X and daytime
running light-ECU connector A-40 for loose, corroded or
damaged terminals, or terminals pushed back in the
connector.
Q: Is front-ECU connector A-07X and daytime running
light-ECU connector A-40 in good condition?
YES : Go to Step 2.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
. Verify the headlights shut-down when the
ignition switch is turned from on to off.
AC204166
CONNECTOR : A-40
AI
A-40(B)
AC204183
CONNECTOR : A-07X
AB
2 1
3
4
6
7
8
9
5
11 10
RELAY BOX SIDE
AC204166
CONNECTOR : A-40
HARNESS
SIDE
A-40(B)
A-40(B)
AH
1
4
2
3
6 5
SYMPTOM PROCEDURES
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SWS SYMPTOM PROCEDURES
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STEP 2. Check the wiring harness between front-ECU
connector A-07X (terminal 2) and daytime running light-
ECU connector A-40 (terminal 5).
NOTE: Also check joint connector A-15 for loose, corroded, or
damaged terminals, or terminals pushed back in the connector.
If joint connector A-15 is damaged, repair or replace the dam-
aged component(s) as described in GROUP 00E, Harness
Connector Inspection
.
Q: Is the wiring harness between front-ECU connector A-
07X (terminal 2) and daytime running light-ECU
connector A-40 (terminal 5) in good condition?
YES : Replace the daytime running light-ECU. The daytime
running light function should now work normally.
NO : The wiring harness may be damaged or the
connector(s) may have loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Repair the wiring harness as necessary. Verify the
headlights shut-down when the ignition switch is
turned from on to off.
AC204183
CONNECTOR : A-07X
AB
2 1
3
4
6
7
8
9
5
11 10
RELAY BOX SIDE
AC204166
CONNECTOR : A-40
HARNESS
SIDE
A-40(B)
A-40(B)
AH
1
4
2
3
6 5
AC204167
CONNECTOR : A-15
AD
14
13
4
1112
5
3
10
8 9
2
7
1
6
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SWS SYMPTOM PROCEDURES
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FLASHER TIMER
GENERAL DESCRIPTION CONCERNING FLASHER TIMER
M1549023600067
The ECU related to the alarm function types and var-
ious control functions are as follows.
Flasher timer function
.
Turn signal light
The turn signal light output (flashing signal) is turned ON when
the turn signal light ignition switch is ON and the turn signal
light switch is ON (LH or RH.) If the front turn signal light or rear
turn signal light bulb has burned out, the flashing speed
increases to indicate that the bulb has burned out.
.
Hazard warning light
The hazard warning lights output (flashing) is turned ON when
the hazard warning light switch is turned OFF to ON. When the
switch is turned ON again, the output is turned OFF.
NOTE: The hazard warming light switch is a push-return type
toggle switch.
FUNCTION
CONTROL ECU
Turn signal light
ETACS-ECU, column switch
Hazard warning light
ETACS-ECU
AC005444AB
Ignition switch
Turn signal
light switch LH
Turn signal
light switch RH
Turn signal
light output LH
Turn signal
light output RH
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
AC005445AB
Hazard light
switch
Turn signal
light output LH
Turn signal
light output RH
ON
OFF
ON
OFF
ON
OFF
SYMPTOM PROCEDURES
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SWS SYMPTOM PROCEDURES
54Bb-390
General circuit for turn signal light and hazard light
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