Mitsubishi Montero (2004+). Manual — part 843
CHECK AT ECU TERMINAL
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-629
24
Input from fog light switch
Fog light switch: ON (When the
switch is depressed)
0 V
25
Input of driver's seat belt switch
signal
Driver's seat belt switch: ON
(seat belts unfastened)
0 V
26
Input of key reminder switch
signal
Key reminder switch: ON
(ignition key removed)
0 V
27
Input of hazard warning light
switch signal
Hazard warning light switch: ON
(When the switch is depressed)
0 V
28
Input of back door lock key
cylinder switch (LOCK) signal
Back door lock key cylinder
switch: LOCK
0 V
29
Input of front passengers's door
switch signal
Front passenger's door switch:
ON (Front passenger's door
open)
0 V
31
Output of data request signal
Always
0
− 5 V (pulse signal)
34
Input of signal from windshield
intermittent wiper interval
adjusting knob
Ignition switch: "ACC,"
Windshield intermittent wiper
interval adjusting knob: "FAST"
→ "SLOW"
0
→ 2.5 V
35
Input of "R" position signal from
transmission range switch
Ignition switch: "ON,"
Selector lever: "R"
Battery positive voltage
36
Output to ignition key hole
illumination light
When ignition key hole
illumination light is on
2 V or less
37
Output to data link connector
When DTC sets
0
− 12 V (pulse signal)
When input check signal is
output
0
− 12 V (when input
pulse signal is
fluctuating)
39
Output to seat belt warning light When seat belt warning light is
on
2 V or less
40
Output to the theft-alarm
indicator light
When the theft-alarm indicator
light is on
2 V or less
42
Output to horn
When a horn sounds by the
keyless entry horn answerback
function or the theft-alarm
system
2 V or less
45
Input of back door lock key
cylinder switch (UNLOCK) signal
Back door lock key cylinder
switch: UNLOCK
0 V
46
Input of front passenger's door
lock actuator switch (UNLOCK)
signal
Front passenger's door lock
actuator switch: UNLOCK
0 V
47
Input of rear and back door lock
actuator switch (UNLOCK)
signals
Rear or back door lock actuator
switch: UNLOCK
0 V
48
Input signal from the hood switch Hood switch: ON (Hood open)
0 V
49
Output to the theft-alarm horn
When theft-alarm horn is
sounding
2 V or less
TERMINAL
NO.
INSPECTION ITEM
INSPECTION CONDITION
NORMAL VALUE
CHECK AT ECU TERMINAL
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-630
2. COLUMN SWITCH
50
Input of driver's and front
passenger's door lock key
cylinder switch (LOCK) signals
Driver's or front passenger's door
lock key cylinder switch: LOCK
0 V
51
Input of front passenger's door
lock key cylinder switch
(UNLOCK) signal
Front passenger's door lock key
cylinder switch: UNLOCK
0 V
52
Input of driver's door lock key
cylinder switch (UNLOCK) signal
Driver's door lock key cylinder
switch: UNLOCK
0 V
53
Input of door lock switch signal
(LOCK)
Door lock switch: LOCK
0 V
54
Input of door lock switch signal
(UNLOCK)
Door lock switch: UNLOCK
0 V
55
Input of driver's door lock
actuator switch (LOCK) signal
Driver's door lock actuator
switch: LOCK
0 V
56
Input of driver's door lock
actuator switch (UNLOCK) signal
Driver's door lock actuator
switch: UNLOCK
0 V
TERMINAL
NO.
INSPECTION ITEM
INSPECTION CONDITION
NORMAL VALUE
5
4
3
2
1
10
9
8
7
6
ACX01512
TERMINAL
NO.
INSPECTION ITEM
INSPECTION CONDITION
NORMAL VALUE
1
Battery power supply
Always
Battery positive voltage
2
Input of data request signal
Always
0
− 5 V (pulse signal)
3
SWS communication line
Always
0
− 12 V (pulse signal)
4
Ground
Always
0 V
6
Output of signal from windshield
intermittent wiper interval
adjusting knob
Igniting switch: "ACC,"
Windshield intermittent wipe
interval adjusting knob: "FAST"
to "SLOW"
0
→ 2.5 V
8
Output of backup signal from
windshield wiper switch
Windshield low-speed wiper
switch or windshield high-speed
wiper switch: ON
0 V (when the
windshield wiper motor
is on)
12 V (when the
windshield wiper motor
is off)
9
Power supply to ignition switch
(IG1)
Ignition switch: "ON"
Battery positive voltage
10
Output of backup signal from
headlight switch
Ignition switch: "ON,"
Headlight switch: ON
0
− 1 V
CHECK AT ECU TERMINAL
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-631
3. FRONT-ECU
NOTE: Terminal voltages can not be measured as
the front-ECU is installed directly on the relay box.
Therefore, this information is only for reference.
1 2 3 4 5
7
9 10
6
8
11
21 22 23 24 25
27
26
28 29 30 31
ACX01513
TERMINAL
NO.
INSPECTION ITEM
INSPECTION CONDITION
NORMAL VALUE
1
Output to the fog light relay
When the fog lights are on
2 V or less
2
Output to headlight (high-beam) When headlights (high-beam)
are on
Battery positive voltage
3, 4
Battery power supply (for
headlight)
Always
Battery positive voltage
5
Battery power supply (for
taillight)
Always
Battery positive voltage
6
Output to headlight (low-beam)
When headlights (low-beam) are
on
Battery positive voltage
7
Battery power supply (for ECU)
Always
Battery positive voltage
8
Output to taillights
When taillights are on
Battery positive voltage
9
Battery power supply (for
headlight washer)
Always
Battery positive voltage
11
Output to the headlight washer
When the headlight washer is
working
Battery positive voltage
21
Output to windshield washer
When windshield washer is on
Battery positive voltage
22
SWS communication line
Always
0
− 12 V (pulse signal)
23
Input of automatic stop signal to
windshield wiper
When windshield wiper is on
Battery positive voltage
24
Power supply to ignition switch
(ACC)
Ignition switch: ACC
Battery positive voltage
25
Input of backup signal from
headlight switch
Headlight switch: ON
0 V
26
Input of backup signal to
windshield wiper
Windshield low-speed wiper
switch or windshield high-speed
wipe switch: ON
0 V
27
Output to windshield wiper
(low-speed)
When windshield wiper is on (at
low speed)
Battery positive voltage
28
Output to windshield wiper
(high-speed)
When windshield wiper is on (at
high speed)
Battery positive voltage
30
Power supply to ignition switch
(IG2)
Ignition switch: ON
Battery positive voltage
31
Ground
Always
0 V
CHECK AT ECU TERMINAL
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-632
4. SUNROOF MOTOR ASSEMBLY
5. RV METER
Refer to GROUP 54A, RV Meter
5
4
3
2
1
10
9
8
7
6
ACX01514
TERMINAL
NO.
INSPECTION ITEM
INSPECTION CONDITION
NORMAL VALUE
1
Battery power supply (for motor) Always
Battery positive voltage
2
Power supply to ignition switch
(IG2)
Ignition switch: ON
Battery positive voltage
3
Battery power supply (for ECU)
Always
Battery positive voltage
5
Ground
Always
0 V
6
Input signal ("CLOSE/DOWN")
from the sunroof switch
Sunroof switch: "CLOSE/DOWN" 0 V
7
Input signal ("UP") from the
sunroof switch
Sunroof switch: "UP"
0 V
8
Input signal ("OPEN") from the
sunroof switch
Sunroof switch: "OPEN"
0 V
10
SWS communication line
Always
0
− 12 V (pulse signal)
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