Mitsubishi Montero (2004+). Manual — part 826
INPUT SIGNAL PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-561
STEP 1. Verify which door switch is defective.
Q: Which door switch signal is not entered?
Driver's or front passenger's door : Refer to Inspection
Procedure O-5 "ETACS-ECU does not receive any
signal from the driver's or the front passenger's door
switch
."
Rear door (LH) : Go to Step 2.
Rear door (RH) : Go to Step 7.
Back door : Go to Step 12.
Driver’s, rear (LH) and back door : Go to Step 17.
STEP 2. Check rear door switch (LH) connector F-09 for
loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Is rear door switch (LH) connector F-09 in good
condition?
YES : Go to Step 3.
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 rear door switch (LH) should be
normal.
STEP 3. Check the rear door switch (LH).
Remove the rear door switch (LH). Then check continuity
between the switch terminals and the switch body.
Q: Is the rear door switch (LH) in good condition?
YES : Go to Step 4.
NO : Replace the rear door switch (LH). If the functions,
which are described in "CIRCUIT OPERATION", work
normally, the input signal from the rear door switch
(LH) should be normal.
STEP 4. Measure at the lower metal part of the rear door
switch (LH) in order to check the ground circuit to the rear
door switch (LH).
NOTE: Check that the rear door switch (LH) is grounded to the
vehicle body by means of its mounting screw.
AC204178
CONNECTOR : F-09
AC
HARNESS SIDE
1
2
3
F-09
SWITCH
POSITION
TESTER
CONNECTION
SPECIFIED
CONDITION
Released (ON)
2
− switch body
Less than 2 ohms
Depressed (OFF) 2
− switch body
Open circuit
1 2 3
ACX01865 AC
ON
OFF
INPUT SIGNAL PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-562
Remove the cap, and measure the resistance value between
the lower metal part and the ground.
• The resistance should equal 2 ohms or less.
Q: Is the measured resistance 2 ohms or less?
YES : Go to Step 5.
NO : Check the fit of the switch, and repair if necessary. If
the functions, which are described in "CIRCUIT
OPERATION", work normally, the input signal from
the rear door switch (LH) should be normal.
STEP 5. Check ETACS-ECU connector D-222 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is ETACS-ECU connector D-222 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 rear door switch (LH) should be
normal.
STEP 6. Check the wiring harness between rear door
switch (LH) connector F-09 (terminal 2) and ETACS-ECU
connector D-222 (terminal 7).
ACX01600AB
METAL PART
CUP
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
AC204178
CONNECTOR : F-09
AC
HARNESS SIDE
1
2
3
F-09
INPUT SIGNAL PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-563
NOTE: Also check intermediate connector D-125 and junction
block connector D-217 for loose, corroded, or damaged termi-
nals, or terminals pushed back in the connector. If junction
block connector D-217 or intermediate connector 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 rear door switch (LH)
connector F-09 (terminal 2) and ETACS-ECU connector
D-222 (terminal 7) in good condition?
YES : Replace the ETACS-ECU. If the functions, which are
described in "CIRCUIT OPERATION", work normally,
the input signal from the rear door switch (LH) 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 rear door switch (LH) should be normal.
STEP 7. Check rear door switch (RH) connector F-05 for
loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Is rear door switch (RH) connector F-05 in good
condition?
YES : Go to Step 8.
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 rear door switch (RH) should be
normal.
STEP 8. Check the rear door switch (RH).
Remove the rear door switch (RH). Then check continuity
between the switch terminals and the switch body.
Q: Is the rear door switch (RH) in good condition?
YES : Go to Step 9.
NO : Replace the rear door switch (RH). If the functions,
which are described in "CIRCUIT OPERATION", work
normally, the input signal from the rear door switch
(RH) should be normal.
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
AC204173
CONNECTOR : D-217
AG
HARNESS SIDE
8
1
11 10
3
4
12
9
2
13
14
6 5
15
7
D-217
AC204178
CONNECTOR : F-05
AB
HARNESS SIDE
1
2
3
F-05
SWITCH
POSITION
TESTER
CONNECTION
SPECIFIED
CONDITION
Released (ON)
2
− switch body
Less than 2 ohms
Depressed (OFF) 2
− switch body
Open circuit
1 2 3
ACX01865 AC
ON
OFF
INPUT SIGNAL PROCEDURES
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-564
STEP 9. Measure at the lower metal part of the rear door
switch (RH) in order to check the ground circuit to the rear
door switch (RH).
NOTE: Check that the rear door switch (RH) is grounded to the
vehicle body by means of its mounting screw.
Remove the cap, and measure the resistance value between
the lower metal part and the ground.
• The resistance should equal 2 ohms or less.
Q: Is the measured resistance 2 ohms or less?
YES : Go to Step 10.
NO : Check the fit of the switch, and repair if necessary. If
the functions, which are described in "CIRCUIT
OPERATION", work normally, the input signal from
the rear door switch (RH) should be normal.
STEP 10. Check ETACS-ECU connector D-222 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is ETACS-ECU connector D-222 in good condition?
YES : Go to Step 11.
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 rear door switch (RH) should be
normal.
ACX01600AB
METAL PART
CUP
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
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