turn signal MITSUBISHI 380 2005 User Guide

SWS DIAGNOSIS
SIMPLIFIED WIRING SYSTEM (SWS)54B-22
NOTE: When checking the input signals (off, tail,
low-beam or high-beam), turn the ignition switch to
the "ON" position in order to disable the headlamp
automatic shutoff function. However, since the
headlamp operation does not depend on the ignition
switch positions, the diagnostic tool MB991958
(MUT-III Sub Assembly) does not display the title "IGNITION SWITCH". HEADLAMP
LO00 Headlight switch
HEADLAMP SW (COLUMN
ECU)ON
03 Passing lamp
switchPASSING SW (COLUMN
ECU)OFF
30 Ignition switch
(IG1)IG SW (IG1) (ETACS ECU) ON or OFF
35 Headlight
automatic shutoff
functionH/L AUTO-CUT (ETACS
ECU)OFF
70 Response by the
front-ECUFRONT ECU ACK (FRONT
ECU)NORMAL ACK
PASSING
LAMP03 Passing lamp
switchPASSING SW (COLUMN
ECU)ON
70 Response by the
front-ECUFRONT ECU ACK (FRONT
ECU)NORMAL ACK or HI-BEAM
ACK
F.FOG LAMP 00 Headlight switch
HEADLAMP SW (COLUMN
ECU)ON
36 Front fog lamp
switchF.FOG LAMP (COLUMN
ECU)ON
35 Headlight
automatic shutoff
functionH/L AUTO-CUT (ETACS
ECU)OFF
30 Ignition switch
(IG1)IG SW (IG1) (ETACS ECU) ON or OFF
70 Response by the
front-ECUFRONT ECU ACK (FRONT
ECU)NORMAL ACK or HI-BEAM
ACK
TAIL LAMP 00 Headlight switch
HEADLAMP SW (COLUMN
ECU)OFF
01 Tail lamp switch TAILLAMP SW (COLUMN
ECU)ON
03 Passing lamp
switchPASSING SW (COLUMN
ECU)OFF
30 Ignition switch
(IG1)IG SW (IG1) (ETACS ECU) ON or OFF
35 Headlight
automatic shutoff
functionH/L AUTO-CUT (ETACS
ECU)OFF
70 Response by the
front-ECUFRONT ECU ACK (FRONT
ECU)NORMAL ACK ITEM ITEM NO. INPUT SIGNAL DISPLAY ON
DIAGNOSTIC TOOLNORMAL CONDITION

SWS DIAGNOSIS
SIMPLIFIED WIRING SYSTEM (SWS)54B-23
For checking item "HEADLAMP HI", the diagnostic
tool MB991958 (MUT-III Sub Assembly) displays
"OFF" on the item No.2 "DIMMER SW" when the
headlamps are at high-beam. Therefore, the
diagnostic tool MB991958 (MUT-III Sub Assembly)
should display "ON" momentarily when the dimmer
switch is operated.
.
TURN SIGNAL
.
BUZZER
NOTE: The headlamp automatic shutoff function
operates approximately one second after the lighting
monitor tone alarm starts sounding, and then the
tone alarm ceases sounding.
.
ITEM ITEM NO. INPUT SIGNAL DISPLAY ON
DIAGNOSTIC TOOLNORMAL CONDITION
TURN-SIG.LH 10 Turn-signal lamp
switch (RH)T/S RH SW (COLUMN
ECU)OFF
11 Tu r n - s i g n a l l a m p
switch (LH)T/S LH SW (COLUMN
ECU)ON
30 Ignition switch
(IG1)IG SW (IG1) (ETACS ECU) ON
TURN-SIG.RH 10 Turn-signal lamp
switch (RH)T/S RH SW (COLUMN
ECU)ON
11 Tu r n - s i g n a l l a m p
switch (LH)T/S LH SW (COLUMN
ECU)OFF
30 Ignition switch
(IG1)IG SW (IG1) (ETACS ECU) ON
ITEM ITEM NO. INPUT SIGNAL DISPLAY ON DIAGNOSTIC
TOOLNORMAL CONDITION
LGT
MONI.ALRM00 Headlamp switch
HEADLAMP SW (COLUMN
ECU)Either is ON
01 Tail lamp switch TAILLAMP SW (COLUMN
ECU)
30 Ignition switch
(IG1)IG SW (IG1) (ETACS ECU) OFF
32 Front door switch FRONT DOOR SW (ETACS
ECU)ON
35 Headlamp
automatic shutoff
functionH/L AUTO-CUT (ETACS
ECU)OFF
43 Tone alarm BUZZER (ETACS ECU) ON
OTHER
ALARM30 Ignition switch
(IG1)IG SW (IG1) (ETACS ECU) ON
43 Tone alarm BUZZER (ETACS ECU) ON

SWS DIAGNOSIS
SIMPLIFIED WIRING SYSTEM (SWS)54B-24
SUNROOF
PULSE CHECK
M1549015100562
1. The input signals (signals other than SWS
communication line signals), which are
compatible with the SWS monitor by using the
diagnostic tool MB991958 (MUT-III Sub
Assembly) or voltmeter, can be confirmed by the
Pulse Check.2. Use the diagnostic tool MB991958 (MUT-III Sub
Assembly) or voltmeter to check the following
input signals.
NOTE: If a problem is found in the Pulse Check,
refer to Input Signal Chart P.54B-61.
Switches and their conditions, which are applicable
for Pulse CheckITEM ITEM NO. INPUT SIGNAL DISPLAY ON
DIAGNOSTIC TOOLNORMAL CONDITION
SUNROOF
OPE.30 Ignition switch
(IG1)IG SW (IG1) (ETACS ECU) ON
72 Response by the
sunroof-ECUS/R ECU ACK (SUNROOF
ECU)INPUT CHECK (only
momentarily when switch is
operated)
INPUT SIGNAL REQUIREMENTS FOR SOUNDING TONE
ALARM
Key reminder switch When the ignition key is pulled out
Hazard warning lamp switch When the switch is turned from off to on
Door switches A door is opened when all the doors are
closed
Door lock key cylinder switch When a door is locked or unlocked by a key
cylinder
Door lock actuators Move the door lock knob from lock position
to unlock position or vice versa
Door lock switch (incorporated in the power window main
switch and front power window sub switch)When a door is locked or unlocked by a door
lock switch
Keyless entry transmitter When the switch is turned from off to on
Interior lamp loaded signal Illuminates the interior lamps

DIAGNOSTIC TROUBLE CODE PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-39
STEP 2. Recheck for diagnostic trouble code.
Check again if the DTC is set.
(1) Erase the DTC.
(2) Turn the ignition switch to the "ON" position.
(3) Check if the DTC is set.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?
YES : Replace the ETACS-ECU. After replacement, verify
that the DTC is not reset.
NO : There is an intermittent malfunction such as poor
engaged connector(s) or open circuit (Refer to
GROUP 00, How to Cope with Intermittent
Malfunction P.00-14).
DTC 011 (U1100): Engine ECU Time-out
DTC 012 (U1101): A/T ECU Time-out
If DTC (U1100) or 012 is set in the ETACS-ECU,
always diagnose the CAN main bus line.
Whenever the ECU is replaced, ensure that the
communication circuit is normal.
.
TROUBLE JUDGMENT
DTC 011 (U1100)
The ETACS-ECU receives engine control sys-
tem-related signal from the Engine ECU. If the
ECU cannot receive the signal, DTC 011
(U1100) will be set. DTC 012 (U1101)
The ETACS-ECU receives automatic transaxle
control system-related signal from the A/T ECU.
If automatic transaxle control system-related sig-
nal cannot be received, DTC 012 (U1101) will be
set.
.
TECHNICAL DESCRIPTION (COMMENT)
Current trouble
Connector(s) or wiring harness in the CAN bus
lines between the Engine ECU or A/T ECU and
the ETACS-ECU, the power supply system to the
Engine ECU or A/T ECU, the Engine ECU or A/T
ECU itself, or the ETACS-ECU may be defective.
Refer to circuit diagrams GROUP-90
Refer to configuration diagrams GROUP-80

DIAGNOSTIC TROUBLE CODE PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-46
STEP 5. Recheck for diagnostic trouble code.
Check again if the DTC is set.
(1) Turn the ignition switch to the "ON" position.
(2) Check if the DTC is set.
(3) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?
YES : Replace the ETACS-ECU. On completion, verify that
the DTC is not reset.
NO : A poor connection, open circuit or other intermittent
malfunction is present in the CAN bus lines between
the A/C-ECU and the ETACS-ECU (Refer to GROUP
00, How to Cope with Intermittent Malfunction
P.00-14).
DTC 014 (U1108): Combination Meter Time-out.
If DTC (U1108) is set in the ETACS-ECU, always
diagnose the CAN main bus line.
Whenever the ECU is replaced, ensure that the
communication circuit is normal.
.
TROUBLE JUDGMENT
The ETACS-ECU receives combination
meter-related signal from the combination meter. If
the ECU cannot receive the signal, DTC 014
(U1108) will be set.
.
TECHNICAL DESCRIPTION (COMMENT)
Current trouble
Connector(s) or wiring harness in the CAN bus
lines between the combination meter and the
ETACS-ECU, the power supply system to the
combination meter, the combination meter itself,
or the ETACS-ECU may be defective.
Refer to circuit diagrams GROUP-90
Refer to configuration diagrams GROUP-80
Past trouble
If DTC 014 (U1108) is stored as a past trouble,
carry out diagnosis with particular emphasis on
wiring and connector(s) in the CAN bus line
between the combination meter and the
ETACS-ECU, and the power supply system to the
combination meter. For diagnosis procedures,
refer to "How to cope with past trouble" (Refer to
GROUP 00, How to treat past trouble P.00-16).
NOTE: You cannot find a past trouble, by the
MUT-III CAN bus diagnostics even if there is a
failure in CAN bus lines. In this case, refer to
GROUP 00, How to Cope with Intermittent Mal-
function P.00-14 and check the CAN bus lines.
You can narrow down the possible cause of the
trouble by referring to the DTC, which is set
regarding the CAN communication-linked ECUs
(Refer to GROUP 54C, CAN Bus Line Diagnosis
P.54C-6).
.

DIAGNOSTIC TROUBLE CODE PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-53
STEP 5. Recheck for diagnostic trouble code.
Check again if the DTC is set.
(1) Turn the ignition switch to the "ON" position.
(2) Check if the DTC is set.
(3) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?
YES : Replace the ETACS-ECU. On completion, verify that
the DTC is not reset.
NO : A poor connection, open circuit or other intermittent
malfunction is present in the CAN bus lines between
the multi center display and the ETACS-ECU (Refer
to GROUP 00, How to Cope with Intermittent
Malfunction P.00-14).
DTC 021 (U1128): Failure Information on Combination Meter.
If DTC 021 (U1128) is set in the ETACS-ECU,
always diagnose the CAN main bus line.
Whenever the ECU is replaced, ensure that the
communication circuit is normal.
The combination meter- related DTC may be set
when DTC 021 (U1128) is set. (For details refer
to GROUP 00, Affiliated DTC Reference Table
P.00-17.) Diagnose the combination meter first
when the combination meter- related DTC is set.
.
TROUBLE JUDGMENT
The ETACS-ECU receives combination
meter-related signal from the combination meter via
the CAN bus lines. If a fail-safe related data is con-
tained in the signal from the combination meter,
DTC 021 (U1128) will be stored.
.
TECHNICAL DESCRIPTION (COMMENT)
Current trouble
The wiring harness wire or connectors may have
loose, corroded, or damage terminals, or termi-
nals pushed back in the connector, the Engine-
ECU, the combination meter or the ETACS-ECU
may be defective.
Refer to circuit diagrams GROUP-90
Refer to configuration diagrams GROUP-80

SYMPTOM CHART
SIMPLIFIED WIRING SYSTEM (SWS)54B-57
SYMPTOM CHARTM1549000801159
ECU COMMUNICATION SYSTEM
FUNCTION SYSTEM
SYMPTOM INSPECTION
PROCEDUREREFERENCE
PA G E
Communication with the SWS monitor kit is not possible. A-1
P.54B-63
Communication with the column switch (column-ECU) is not possible. A-2
P.54B-68
Communication with the ETACS-ECU is not possible. A-3
P.54B-74
Communication with the front-ECU is not possible. A-4
P.54B-80
Communication with the sunroof-ECU is not possible. A-5
P.54B-87
SYSTEM SYMPTOM INSPECTION
PROCEDUREREFERENCE
PA G E
Tone alarm General description concerning the tone alarm
P.54B-94
Light reminder tone alarm function does not work
normally.B-2
P.54B-98
Seat belt tone alarm function does not work
normally.B-3
P.54B-101
Door ajar warning buzzer function does not work
normally.B-4
P.54B-106
The multi center display does not sound normally
when it is operated. B-5
P.54B-112
Turn-signal lamp buzzer function does not work
normally.B-6
P.54B-116
Central door locking
systemGeneral description concerning central door
locking system
P.54B-118
The central door locking system does not work at
all.C-1
P.54B-122
Some doors do not lock or unlock. C-2
P.54B-129
All the doors do not lock or unlock with just the
door lock switch operation.C-3
P.54B-142
All the doors do not lock or unlock with just the
door lock key cylinder key operation.C-4
P.54B-143
Forgotten key prevention function does not work
normally.C-5
P.54B-144

SYMPTOM CHART
SIMPLIFIED WIRING SYSTEM (SWS)54B-58
Power windows General description concerning the power
windowsP.54B-148
Power windows do not work at all. D-1
P.54B-151
The power window timer function does not work
normally.D-2
P.54B-161
Only the front door window (LH) does not work by
operating power window main switch.D-3
P.54B-164
Power windows do not work normally by operating
the front passenger's or rear passenger's sub
switches.D-4
P.54B-167
Front or rear passenger's power windows do not
work at all by operating the power window main
switch.D-5
P.54B-187
Keyless entry system General description concerning the keyless entry
system
P.54B-187
Keyless entry system does not operate. E-1
P.54B-191
The dome lamp, the turn-signal lamps and the
horn do not operate through the answerback
function.E-2
P.54B-193
Encrypted code cannot be registered. E-3
P.54B-202
The trunk is not opened when the keyless entry
transmitter "TRUNK" button is operated.E-4
P.54B-205
Sunroof General description concerning the sunroof
P.54B-209
Sunroof does not operate. F-1
P.54B-210
Any of the sunroof switch positions is defective. F-2
P.54B-219
Sunroof timer function does not work normally. F-3
P.54B-220
Windshield wiper and
washerGeneral description concerning the windshield
wiper and washer
P.54B-223
The windshield wiper do not work at all. G-1
P.54B-226
The windshield wipers do not work when the
windshield wiper switch is at "INT" or "MIST"
position or the windshield washer switch is at "ON"
position. However, the wipers work at low speed
when the windshield wiper switch is at "LO" or "HI."G-2
P.54B-234
All of the windshield wiper switch positions are
defective.G-3
P.54B-236
Windshield wipers does not stop at the
predetermined park position.G-4
P.54B-240
The windshield intermittent wiper interval cannot
be adjusted by using the variable intermittent wiper
control switch.G-5
P.54B-246
The windshield intermittent wiper interval is not
changed according to the vehicle speed.G-6
P.54B-248
The windshield washer does not work. G-7
P.54B-251 SYSTEM SYMPTOM INSPECTION
PROCEDUREREFERENCE
PA G E

SYMPTOM CHART
SIMPLIFIED WIRING SYSTEM (SWS)54B-59
Headlamp and
taillampGeneral description concerning the headlamp and
taillampP.54B-257
The taillights do not illuminate normally. H-1
P.54B-260
The headlamps (low-beam) do not illuminate
normally.H-2
P.54B-264
The headlamps (high-beam) do not illuminate
normally.H-3
P.54B-268
When the passing switch is turned "ON," the
headlamps (low-beam or high-beam) do not
illuminate.H-4
P.54B-271
Headlights do not illuminate when the lighting
switch is at "TAIL," and "PASSING" position, but
illuminate at low-beam when the switch is at
"HEAD" position. At this position, the headlamps
cannot be changed to high beam by operating the
dimmer switch.H-5
P.54B-273
The taillamps, the position lamps, front parking
lamps or the license plate lamp do not illuminate.H-6
P.54B-275
One of the headlamps does not illuminate. H-7
P.54B-290
The high-beam indicator lamp does not illuminate. H-8
P.54B-301
Headlamp automatic shutoff function does not
work normally.H-9
P.54B-305
Headlamp dimmer switch automatic resetting
function does not work normally.H-10
P.54B-308
Flasher timer General description concerning the flasher timer
P.54B-309
Turn-signal lamps do not flash when the
turn-signal lamp switch is turned on.I-1
P.54B-310
Hazard warning lamps do not flash when the
hazard warning lamp switch is turned on.I-2
P.54B-314
One of the turn-signal lamps does not illuminate. I-3
P.54B-316
The turn-signal lamp indicator does not illuminate
normally.I-4
P.54B-335
Fog lamp General description concerning the fog lamps
P.54B-339
Fog lamps do not illuminate when the fog lamp
switch is turned on.J-1
P.54B-340
Fog lamps do not go out when the headlamps
(low-beam) are turned off while the fog lamps are
on.J-2
P.54B-345
One of the fog lamps does not illuminate. J-3
P.54B-345
The fog lamp indicator does not illuminate
normally.J-4
P.54B-350 SYSTEM SYMPTOM INSPECTION
PROCEDUREREFERENCE
PA G E

INPUT SIGNAL CHART
SIMPLIFIED WIRING SYSTEM (SWS)54B-61
INPUT SIGNAL CHARTM1549024200501
SWS MONITOR
If a problem is found in the Data List inspection,
observe the table below.
SYMPTOM INSPECTION
PROCEDUREREFERENCE
PA G E
ETACS-ECU does not receive any signal from the ignition switch (ACC). M-1
P.54B-405
ETACS-ECU does not receive any signal from the ignition switch (IG1). M-2
P.54B-408
ETACS-ECU does not receive any signal from the fog lamp switch.M-3
P.54B-410
ETACS-ECU does not receive any signal from the front door switches. M-4
P.54B-413
Column switch ETACS-ECU does not receive any signal from the tail
lamp switch.M-5
P.54B-420
ETACS-ECU does not receive any signal from the
headlamp switch.
ETACS-ECU does not receive any signal from the
passing lamp switch.
ETACS-ECU does not receive any signal from the
dimmer switch.
ETACS-ECU does not receive any signal from the
turn-signal lamp switch.
ETACS-ECU does not receive any signal from the
windshield mist wiper switch.M-6
P.54B-423
ETACS-ECU does not receive any signal from the
windshield intermittent wiper switch.
ETACS-ECU does not receive any signal from the
windshield low-speed wiper switch.
ETACS-ECU does not receive any signal from the
windshield high-speed wiper switch.
ETACS-ECU does not receive any signal from the
variable intermittent wiper control switch.M-7
P.54B-426
ETACS-ECU does not receive any signal from the
windshield washer switch.M-6
P.54B-423
Sunroof switch ETACS-ECU does not receive any signal from the up,
open or close/down switch.M-8
P.54B-429