Mitsubishi Montero (2002-2004). Manual — part 261
SYMPTOM PROCEDURES
TSB Revision
SWS SYMPTOM PROCEDURES
54Bb-91
AC000759
CONNECTORS: D-15, D-111
AB
D-15
D-111
AC000758
CONNECTORS: D-25, D-125
AI
D-25
D-125
ACX02285
CONNECTORS: D-209, D-217
AL
D-209
D-217
JUNCTION BLOCK (FRONT VIEW)
ACX02286
CONNECTOR: D-222
AC
JUNCTION BLOCK (REAR VIEW)
ACX02289
CONNECTORS: F-12, F-23
F-23
AE
F-12
AC204524
CONNECTOR: G-10
AB
G-10
AC000237AI
H-13
CONNECTOR: H-13
REAR DOOR <LH>
AC000235 AD
H-10
CONNECTOR: H-10
FRONT DOOR <DRIVER'S SIDE>
SYMPTOM PROCEDURES
TSB Revision
SWS SYMPTOM PROCEDURES
54Bb-92
.
CIRCUIT OPERATION
• The ETACS-ECU controls the central door lock
system, locking or unlocking all the doors by acti-
vating the central door lock relay (built into the
ECU). The ETACS-ECU uses inputs from the fol-
lowing components:
• Driver's or passenger's door lock actuator
switch
• Driver's or passenger's door lock key cylinder
switch
• Door lock switch, which is incorporated in the
power window main switch or power window
sub switch (front RH)
.
TECHNICAL DESCRIPTION (COMMENT)
If only some doors do not lock or unlock, the harness
wiring between the door lock actuator or the ETACS-
ECU and the door lock actuator may be defective.
.
TROUBLESHOOTING HINTS
• The driver’s or front passenger’s door lock actua-
tor may be defective
• The ETACS-ECU may be defective
• The harness wiring 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 which door lock is defective.
Q: Which of the door locks is defective?
Driver's door : Go to Step 2.
Front passenger's door : Go to Step 6.
Rear passenger's door (LH) : Go to Step 10.
Rear passenger's door (RH) : Go to Step 14.
Back door : Go to Step 18.
AC000238AJ
H-24
CONNECTOR: H-24
FRONT DOOR <RH>
AC000316 AH
H-21
CONNECTOR: H-21
REAR DOOR <RH>
ACX02293
CONNECTOR: I-05
AB
SYMPTOM PROCEDURES
TSB Revision
SWS SYMPTOM PROCEDURES
54Bb-93
STEP 2. Check the driver's door lock actuator.
1. Remove the driver's door lock actuator, and check it. Refer
to GROUP 42
− Door Handle and Latch
2. Follow the table below to check the driver's door lock actua-
tor for correct operation.
Q: Does the driver's door lock actuator work normally?
YES : Go to Step 3.
NO : Replace the driver's door lock actuator. Verify that all
the doors can be locked and unlocked function should
now work normally.
LEVER
POSITION
BATTERY
CONNECTION
LEVER
OPERATION
At the
"LOCK"
position
• Connect terminal 4 to
the positive battery
terminal
• Connect terminal 6 to
the negative battery
terminal
The lever moves
from the "LOCK"
position to the
"UNLOCK" position.
At the
"UNLOCK"
position
• Connect terminal 6 to
the positive battery
terminal
• Connect terminal 4 to
the negative battery
terminal
The lever moves
from the "UNLOCK"
position to the
"LOCK" position.
ACX00543
LOCK
UNLOCK
VIEW A
A
AE
LEVER
SYMPTOM PROCEDURES
TSB Revision
SWS SYMPTOM PROCEDURES
54Bb-94
STEP 3. Check ETACS-ECU connector D-222 and driver's
door lock actuator connector H-10 for loose, corroded or
damaged terminals, or terminals pushed back in the
connector.
Q: Are ETACS-ECU connector D-222 and driver's door lock
actuator connector H-10 in good condition?
YES : Go to Step 4.
NO : Repair or check the connector. Refer to GROUP 00E,
Harness Connector Inspection
. After repairs
have been made, verify that all the doors can now be
locked and unlocked normally.
AC204174
CONNECTOR : D-222
AB
1
2
3
5
6
4
9 8
121110
13
15 14
16
17
7
19
20
18
JUNCTION BLOCK SIDE
D-222
AC000235 AE
H-10 (B)
CONNECTOR: H-10
FRONT DOOR <DRIVER'S SIDE>
1 2 3
4 5 6
H-10 (B)
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