Mitsubishi Montero (2004+). Manual — part 759
SYMPTOM PROCEDURES
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-293
NOTE: Also check junction block connectors D-208 and D-210
for loose, corroded, or damaged terminals, or terminals pushed
back in the connector. If junction block connector D-208 or
D-210 is damaged, repair or replace the damaged compo-
nent(s) as described in GROUP 00E, Harness Connector
Inspection
.
Q: Is the wiring harness between combination meter
connector D-03 (terminal 62) and the ignition switch
(IG1) 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. Verify that
the seat belt warning light illuminates normally.
STEP 11. Check the wiring harness between combination
meter connector D-04 (terminal 32) and ETACS-ECU
connector D-224 (terminal 39).
Q: Is the wiring harness between combination meter
connector D-04 (terminal 32) and ETACS-ECU connector
D-224 (terminal 39) 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. Verify that
the seat belt warning light illuminates normally.
AC204191
CONNECTORS: D-208, D-210
D-208
AC
HARNESS SIDE
HARNESS SIDE
D-210
D-208
D-210
1
2
3
5
6
4
1
2
7 6
3
9
4
11
12
10
13
5
8
AC204170
CONNECTOR : D-04
AD
D-04(GR)
HARNESS
SIDE
D-04(GR)
31
32
41 40
33
34
36
37
35
43
46 45 44
39
42
38
47
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-294
HEADLIGHT AND TAILLIGHT
GENERAL DESCRIPTION CONCERNING HEADLIGHT AND TAILLIGHT
M1549021300178
The ECU related to the headlight and taillight types
and various control functions are as follows.
Taillights and headlights illumination
.
Taillight
The front ECU will light up the taillight when the taillight switch
signal from the column switch is in the "ON" state and the
built-in taillight replay is in the "ON" state.
NOTE: This item only considers the taillight lightup function and
does not take into consideration the other functions. In actual
driving, the taillights may be turned off due to the headlight
automatic shut-down function. For the details of the headlight
automatic shut-down function, refer to its Section.
.
Headlights and high-beam indicator light
The front ECU lights up the headlight (LO) when the signal from
the column switch to the headlight switch is in the "ON" state
and the built-in head light relay (LO) is in the "ON" state. If the
dimmer switch is turned on while the headlight relay (LO) is on,
the front-ECU turns on the headlight relay (HI), causing the
high-beam headlights to illuminate.
What's more, ETACS-ECU lights up the high beam indicator
light when the acknowledgment signal from the front ECU is in
the "HI-BEAM ACK" state or the head light switch signal from
the column switch is in the "PASS" state.
NOTE: This item only considers the headlight lightup function
and doesn't take into consideration the other functions. In
actual driving, the headlights may be turned off due to the
headlight automatic shut-down function. For the details of the
headlight automatic shut-down function, refer to its Section.
FUNCTION
CONTROL ECU
Taillight
Front-ECU, column switch
Headlights and high-beam indicator light
ETACS-ECU, front-ECU, column switch
Headlight automatic-shutdown function
ETACS-ECU, front-ECU, column switch
Dimmer automatic reset function
Front-ECU, column switch
Daytime running light function
Daytime running light-ECU
AC106502
ON
OFF
ON
OFF
Taillight
switch
Taillight
relay
AB
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-295
Headlight automatic-shutdown function
Even if the lighting switch (taillight switch or headlight switch) is
ON, the head light (including the taillights) will automatically go
off in the following conditions to prevent the battery from dis-
charging as a result of forgetting to turn off lights.
When the ignition key is turned from "ON" to "LOCK" (OFF) or
"ACC" position with the lighting switch turned ON, and this
state continues for three minutes, the light will automatically be
turned off. If the driver's door is opened during these three min-
utes, the light will go off one second later.
NOTE: This function can be disabled by the adjustment proce-
dures of SWS function (Refer to
Dimmer automatic reset function
The column switch (column ECU) resets the dimmer switch and
prevents the high beam from lighting up when turning on the
headlight again if the headlight switch is put in the "OFF" posi-
tion while the high beam of the headlight is on (including the
instance when the dimmer switch is erroneously put in the "ON"
state upon passing operations) and resets the dimmer switch.
AC106816
Headlight switch
ON
OFF
Headlight
relay (Lo)
ON
OFF
Headlight
relay (Hi)
ON
OFF
Hi-beam indicator
light
ON
OFF
Front ECU
Acknowdge
Hibeam
ACK
OTHERS
Passing/Dimmer
switch
ON
PASS
OFF
AB
AC101466AB
T1: 3 minutes
T2: 1 second
ON
ON
ON
OFF
OFF
OFF
Ignition switch
(IG1)
Driver's door
switch
Taillight switch or
headlight switch
Illumination
output signal
ON
OFF
T1
T2
AC106399
ON
OFF
ON
OFF
Dimmer
switch
Headlight
switch
HI
LO
OFF
Headlight
AB
SYMPTOM PROCEDURES
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SIMPLIFIED WIRING SYSTEM (SWS)
54B-296
Daytime running light function <Vehicles for CANADA>
The front-ECU illuminates the low-beam headlights at a
reduced brightness when the ignition switch is turned "ON" with
the headlight switch is at the "OFF" or "TAIL" position. It illumi-
nates the low-beam headlights at a normal brightness when the
headlights are turned on with the daytime running lights on.
AC201190
Passing / Dimmer
switch
Headlight
switch
ON
OFF
HEAD
OFF or TAIL
Ignition switch
(IG2)
ON
OFF
Headlight
High-beam
Low-beam
(Normal)
Low-beam
(Dim)
OFF
AC
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