Mitsubishi Montero (2004+). Manual — part 794
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-433
STEP 4. Check the input signal (by using the pulse check
mode of the monitor.)
Check the input signals from the following switches:
• Key reminder switch
• All door switch
Operate scan tool MB991958 according to the procedure below
to display "PULSE CHECK."
1. Select "SYSTEM SELECT."
2. Select "SWS."
3. Select "PULSE CHECK."
Check if scan tool MB991958 sounds or not.
Q: When the key reminder switch, each door switch and
the interior light are operated, does scan tool MB991958
sound in each case?
Buzzer of scan tool MB991958 sounds normally : Go to
Step 5.
Scan tool MB991958 does not sound when the key
reminder switch is operated : Refer to Inspection
Procedure P-1 "ETACS-ECU does not receive a
signal from the key reminder switch
."
Scan tool MB991958 does not sound whenever each
door switch is operated : Refer to Inspection Procedure
P-4 "ETACS-ECU does not receive a signal from all
the door switches
."
STEP 5. Determine a trouble spot.
Q: Which light does not illuminate?
All lights does not illuminate : Go to Step 6.
The dome light and rear personal lights does not
illuminate : Go to Step 9.
The cargo space light and rear personal lights does not
illuminate. : Go to Step 10.
Both rear personal light does not illuminate. : Go to Step
The dome light does not illuminate. : Go to Step 12.
The cargo space light does not illuminate : Go to Step
19.
The rear personal light (LH) does not illuminate. : Go to
Step 26.
The rear personal light (RH) does not illuminate. : Go to
Step 34.
ITEM NAME
CONDITION
Key reminder switch
Remove and reinsert the
ignition key
Each door switch
Open or close one of the doors
AC307591 AB
MB991911
DATA LINK
CONNECTOR
MB991824
MB991827
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-434
STEP 6. Check the wiring harness between dome light
connector F-03 (terminal 1) and fusible link (1).
ACX02274
FUSIBLE LINK (1)
AE
BATTERY
AC204177
CONNECTOR : F-03
AC
HARNESS SIDE
1
2
F-03
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-435
NOTE: Also check intermediate connector D-26, D-28, junction
block connector D-207 and D-221 for loose, corroded, or dam-
aged terminals, or terminals pushed back in the connector. If
junction block connector D-207, D-221, intermediate connector
D-26 or D-28 is damaged, repair or replace the damaged com-
ponent(s) as described in GROUP 00E, Harness Connector
Inspection
.
Q: Is the wiring harness between dome light connector
F-03 (terminal 1) and fusible link (1) in good condition?
YES : Go to Step 7.
NO : Repair the wiring harness. Verify that the dome light
illuminates normally.
AC204188
CONNECTORS : D-26, D-28
D-28
AH
D-26
D-28
D-26
2 3
27
32
28
33
16
15
4 5
19
18
29
17
34
7 8
35
22
21
9 10
30
36
31
37
25
24
23
6
20
1
14
26
11
13
12
38
2 3
1
7
6
12
11
8
13
5
4
9 10
AC204191
CONNECTORS : D-207, D-221
D-207
AB
HARNESS SIDE
HARNESS SIDE
D-221
D-207
D-221
3
1
4
6 5
7
8
2
1
2
3
4
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-436
STEP 7. Check ETACS-ECU connector D-222 for damage.
Q: ETACS-ECU connector D-222 in good condition?
YES : Go to Step 8.
NO : Repair or replace the connector. Refer to GROUP
00E, Harness Connector Inspection
. Verify
that the dome light illuminates normally.
STEP 8. Check the wiring harness between dome light
connector F-03 (terminal 2) and ETACS-ECU connector
D-222 (terminal 18).
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
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
AC204177
CONNECTOR : F-03
AC
HARNESS SIDE
1
2
F-03
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