Mitsubishi Montero Sport (2004+). Manual — part 451
DOOR
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BODY
42-59
DIAGNOSIS
STEP 1. Confirm which door lock actuator is defective.
Q: Which door fails to lock correctly?
Front driver's door : Go to Step 2.
Front passenger's door : Go to Step 6.
Rear right door : Go to Step 10.
Rear left door : Go to Step 14.
Liftgate : Go to Step 18.
STEP 2. Check door lock actuator (front: LH) connector
F-12 for loose, corroded or damaged terminals, or
terminals pushed back in the connector.
Q: Is the connector in good condition?
YES : Go to step 3.
NO : Repair or replace the damaged components. Refer to
GROUP 00E
, Harness Connector inspection.
Then go to Step 22.
AC309370
CONNECTOR: F-12
F-12
FRONT DOOR <LH>
AC
1
3 2
4
6 5
COMPONENT SIDE
DOOR
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BODY
42-60
STEP 3. Check the front door lock actuator switch (front:
LH).
(1) Remove the door latch assembly (Refer to
(2) Follow the table to check the resistance when the door lock
actuator (front: LH) is operated (lock/unlock).
Q: Is the front door lock actuator switch (front: LH)
damaged?
YES : Replace front door lock actuator assembly (front: LH),
go to Step 22.
NO : Go to Step 4.
LEVER
POSITION
BATTERY
CONNECTION
LEVER
OPERATION
At the
"UNLOCK"
position
• Connect terminal
No. 6 and the
positive battery
terminal.
• Connect terminal
No. 4 and the
negative battery
terminal.
The lever moves
from the
"UNLOCK"
position to the
"LOCK" position.
At the "LOCK"
position
• Connect terminal
No. 4 and the
positive battery
terminal.
• Connect terminal
No. 6 and the
negative battery
terminal.
The lever moves
from the "LOCK"
position to the
"UNLOCK"
position.
ACX00543
LOCK
UNLOCK
VIEW A
A
AE
LEVER
DOOR
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BODY
42-61
STEP 4. Check ETACS-ECU connectors D-10 <Vehicles
without keyless entry system> and D-27 <Vehicles with
keyless entry system> for loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Q: Are ETACS-ECU connectors D-10 <Vehicles without
keyless entry system> and D-27 <Vehicles with keyless
entry system> in good condition?
YES : Go to Step 5.
NO : Repair or replace the damaged components. Refer to
GROUP 00E
, Harness Connector inspection.
Then go to Step 22.
AC202002
6 5 4
1
2
7
3
8
41
43
51
42
50
44
52
46 45
53
49
47
30
48
56
55
D-27 (B)
D-10
JUNCTION
BLOCK (REAR)
CONNECTORS: D-10, D-27
AB
D-27 COMPONENT SIDE
D-10 COMPONENT SIDE
21
22
23
24
25
26
27
28
DOOR
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BODY
42-62
STEP 5. Check the harness wire between ETACS-ECU
connectors D-10 (terminals No.21 and No.24) <Vehicles
without keyless entry system> or D-27 (terminals No.41
and No.42) <Vehicles with keyless entry system> and door
lock actuator (front: LH) connector F-12 (terminals No.4
and No.6).
AC202002
6 5 4
1
2
7
3
8
41
43
51
42
50
44
52
46 45
53
49
47
30
48
56
55
D-27 (B)
D-10
JUNCTION
BLOCK (REAR)
CONNECTORS: D-10, D-27
AB
D-27 COMPONENT SIDE
D-10 COMPONENT SIDE
21
22
23
24
25
26
27
28
AC309370
CONNECTOR: F-12
F-12
FRONT DOOR <LH>
AC
1
3 2
4
6 5
COMPONENT SIDE
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