Mitsubishi Montero (2004+). Manual — part 694
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-33
NOTE: Also check junction block connector D-220 for loose,
corroded, or damaged terminals, or terminals pushed back in
the connector. If junction block connector D-220 is damaged,
repair or replace the damaged component(s) as described in
GROUP 00E, Harness Connector Inspection
Q: Is the wiring harness between ETACS-ECU connector
D-224 (terminals 22 and 37) and data link connector
D-118 (terminals 1 and 9) in good condition?
YES : Go to Step 8.
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. The system
should communicate with the SWS monitor kit
normally.
STEP 8. Check data link connector D-117 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is data link connector D-117 in good condition?
YES : Go to Step 9.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
. The system should communicate with the
SWS monitor kit normally.
AC204173
CONNECTOR : D-220
AI
HARNESS SIDE
1
2
3
7
8
6
5
10
4
9
AC204170
CONNECTOR: D-117
HARNESS SIDE
AM
21
26
22
27 2829 30
23
31
24
32
25
33
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-34
STEP 9. Check the wiring harness between ETACS-ECU
connector D-224 (terminal 21) and data link connector
D-117 (terminal 31).
NOTE: Also check joint connector D-02 for loose, corroded, or
damaged terminals, or terminals pushed back in the connector.
If joint connector D-02 is damaged, repair or replace the dam-
aged component(s) as described in GROUP 00E, Harness
Connector Inspection
.
Q: Is the wiring harness between ETACS-ECU connector
D-224 (terminal 21) and data link connector D-117
(terminal 31) in good condition?
YES : Replace the ETACS-ECU. The system should
communicate with the SWS monitor kit 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. The system
should communicate with the SWS monitor kit
normally.
AC204188
CONNECTORS : D-02, D-117
D-117
D-02
AD
D-02
D-117
HARNESS SIDE
9 10
8
6 7
31 32
30
29
18 19 20 21
5
4
2
1
3
27
26
24
23
25
12 13 14 15 16 17
28
11
22
33
21
26
22
27 2829 30
23
31
24
32
25
33
AC204174
CONNECTOR : D-224
AD
D-224(B)
D-224(B)
HARNESS SIDE
21
23
24
22
32
3433
31
26
27
28
3029
38
39
40
36
37
25
35
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-35
INSPECTION PROCEDURE A-2: Communication with the column switch (column-ECU) is not
possible.
NOTE: This troubleshooting procedure requires the
use of scan tool MB991958 and SWS monitor kit
MB991862. For details on how to use the SWS mon-
itor, refer to "How to use SWS monitor
Column Switch Power Supply and SWS Communication Circuit
AC204170
CONNECTOR : D-28
BB
AC204172
CONNECTOR : D-203
AG
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-36
.
CIRCUIT OPERATION
• The power supply to the column switch is pro-
vided by the battery and the ignition switch (IG1).
• If the power supply system from the battery is
defective, the system operates by the power sup-
ply from the ignition switch (IG1).
.
TECHNICAL DESCRIPTION (COMMENT)
The power supply circuit to the column switch (col-
umn-ECU) may be defective. If the battery power
supply circuit (terminal 1 of the column switch) to the
ECU is damaged, also check the power supply circuit
from the ignition switch (IG1) (terminal 9 of the col-
umn switch), and repair if necessary.
.
TROUBLESHOOTING HINTS
• The ETACS-ECU may be defective
• The column switch 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 Tools:
• MB991223: Harness Set
• MB991958: Scan Tool (MUT-III Sub Assembly)
• MB991824: Vehicle Communication Interface (V.C.I.)
• MB991827: MUT-III USB Cable
• MB991911: MUT-III Main Harness B
• MB991813: SWS Monitor Kit
• MB991806: SWS Monitor Cartridge
• MB991812: SWS Monitor Harness (For Column-ECU)
• MB991822: Probe Harness
AC204174
CONNECTOR : D-224
D-224(B)
AG
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