Mitsubishi Montero (2002-2004). Manual — part 378
INPUT SIGNAL PROCEDURES
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SWS INPUT SIGNAL PROCEDURES
54Bc-59
STEP 2. Check the battery ground circuit to the driver's
seat belt switch. Test at driver's seat belt switch connector
F-18.
(1) Disconnect driver's seat belt switch connector F-18 and
measure the resistance available at the wiring harness side
of the connector.
(2) Measure the resistance value between terminal 1 and
ground.
• The resistance should equal 2 ohms or less.
Q: Is the measured resistance 2 ohms or less?
YES : Go to Step 5.
NO : Go to Step 3.
STEP 3. Check driver's seat belt switch connector F-18 for
loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Is driver's seat belt switch connector F-18 in good
condition?
YES : Go to Step 4.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
. If the functions, which are described in
"CIRCUIT OPERATION", work normally, the input
signal from the driver's seat belt switch should be
normal.
AC204177
CONNECTOR : F-18
AD
HARNESS SIDE
2 1
F-18
ACX01670
2 1
AB
CONNECTOR F-18
(HARNESS SIDE)
AC204177
CONNECTOR : F-18
AD
HARNESS SIDE
2 1
F-18
INPUT SIGNAL PROCEDURES
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SWS INPUT SIGNAL PROCEDURES
54Bc-60
STEP 4. Check the wiring harness between driver's seat
belt switch connector F-18 (terminal 1) and ground.
Q: Is the wiring harness between driver's seat belt switch
connector F-18 (terminal 1) and ground in good
condition?
YES : No action is necessary and testing is complete.
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. If the
functions, which are described in "CIRCUIT
OPERATION", work normally, the input signal from
the driver's seat belt switch should be normal.
STEP 5. Check driver's seat belt switch connector F-18 and
ETACS-ECU connector D-224 for loose, corroded or
damaged terminals, or terminals pushed back in the
connector.
Q: Are driver's seat belt switch connector F-18 and ETACS-
ECU connector D-224 in good condition?
YES : Go to Step 6.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
. If the functions, which are described in
"CIRCUIT OPERATION", work normally, the input
signal from the driver's seat belt switch should be
normal.
AC204177
CONNECTOR : F-18
AD
HARNESS SIDE
2 1
F-18
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
AC204177
CONNECTOR : F-18
AD
HARNESS SIDE
2 1
F-18
INPUT SIGNAL PROCEDURES
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SWS INPUT SIGNAL PROCEDURES
54Bc-61
STEP 6. Check the wiring harness between driver's seat
belt switch connector F-18 (terminal 2) and ETACS-ECU
connector D-224 (terminal 25).
NOTE: Also check intermediate connector D-125 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the
connector. If intermediate connectors D-125 is damaged,
Repair or replace the damaged component(s) as described in
GROUP 00E, Harness Connector Inspection
Q: Is the wiring harness between driver's seat belt switch
connector F-18 (terminal 2) and ETACS-ECU connector
D-224 (terminal 25) in good condition?
YES : Replace the ETACS-ECU. If the functions, which are
described in "CIRCUIT OPERATION", work normally,
the input signal from the driver's seat belt switch
should be normal.
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. If the
functions, which are described in "CIRCUIT
OPERATION", work normally, the input signal from
the driver's seat belt switch should be normal.
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
AC204177
CONNECTOR : F-18
AD
HARNESS SIDE
2 1
F-18
AC204170
CONNECTOR : D-125
AO
9
8
6 7
5
3 4
20
32
21
33
43
17 18
30
41
16
29
28
39 40
13
25
12
24
35 36
14
26
37
15
27
38
19
31
42
1
10
22
2
11
23
34
INPUT SIGNAL PROCEDURES
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SWS INPUT SIGNAL PROCEDURES
54Bc-62
INSPECTION PROCEDURE P-4: ETACS-ECU does not receive any signal from all the door switches.
All Door Switches Input Circuit
AC204171
CONNECTOR : D-111
AG
AC204170
CONNECTOR : D-125
BE
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