2005 MITSUBISHI 380 headlamp

INPUT SIGNAL PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-422
STEP 2. Check the turn-signal lamp and lighting switch.
Remove the turn-signal lamp and the lighting switch. Then
check continuity between the switch terminals.
Q: Are the turn-signal lamp and lighting switch in good
condition?
YES : Go to Step 3.
NO : Replace the turn-signal lamp and the lighting switch.
The input signal from the column switch (turn-signal
lamp and lighting switch) should be able to be
checked and the functions described in the "CIRCUIT
OPERATION" should work normally.
STEP 3. Replace the column switch.
(1) Replace the column switch.
(2) The input signal from the column switch (turn-signal lamp
and lighting switch) should be able to be checked and the
functions described in the "CIRCUIT OPERATION" should
work normally.
Q: Is the input signal from the column switch (turn-signal
lamp and lighting switch) input normal?
YES : No action is necessary and testing is complete.
NO : Replace the ETACS-ECU. The input signal from the
column switch (turn-signal lamp and lighting switch)
should be able to be checked and the functions
described in the "CIRCUIT OPERATION" should work
normally. SWITCH
POSITIONTESTER
CONNECTIONSPECIFIED
CONDITION
OFF 1
2, 2 3, 2 11,
2
12, 5 9, 7 9Open circuit
Taillight switch 5
9 Less than 2 ohms
Headlamp switch5
9, 7 9 Less than 2 ohms
Passing switch 2
12 Less than 2 ohms
Dimmer switch 2
11, 2 12 Less than 2 ohms
Turn-signal lamp
switch (LH)1
2 Less than 2 ohms
Turn-signal lamp
switch (RH)2
3 Less than 2 ohms

INPUT SIGNAL PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-440
INSPECTION PROCEDURE N-3: ETACS-ECU does not receive any signal from any of the door
switches.
.
CIRCUIT OPERATION
The ETACS-ECU operates the following functions or
systems according to signal from the front or rear
door switches:
Light reminder tone alarm function switch (RH)>
Door ajar warning buzzer
Ignition key reminder tone alarm switches>
Power window timer function switches>
Sunroof timer function
Headlamp automatic shutdown function door switch (RH)>
Keyless entry system
Timer lock
Dome lamp
Interior lamp automatic-shutdown function door switches>
Ignition key hole illumination lamp switch (RH)>
Door-ajar indicator lamp
.
TECHNICAL DESCRIPTION (COMMENT)
If the signal is not normal, the functions or systems
described in "CIRCUIT OPERATION" do not work
normally. If the signal is not normal, the front or rear
door switches or the ETACS-ECU may be defective.
.
TROUBLESHOOTING HINTS
Refer to circuit diagrams GROUP-90
Refer to configuration diagrams GROUP-80
The front or rear door switches may be defective
The wiring harness or connectors may have
loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector
The ETACS-ECU may be defective
DIAGNOSIS
Required Special Tools:
MB991223: Harness Set
MB991958: Diagnostic Tool (MUT-III Sub Assembly)
MB991824: Vehicle Communication Interface (V.C.I.)
MB991827: MUT-III USB Cable
MB991910: MUT-III Main Harness A

CHECK AT ECU TERMINAL
SIMPLIFIED WIRING SYSTEM (SWS)54B-483
COLUMN SWITCH
TERMINAL
NO.INSPECTION ITEM INSPECTION CONDITION NORMAL VALUE
1 Battery power supply Always Battery positive voltage
2 Input of data request signal Always 0
12 V (pulse signal)
3 SWS communication line Always 0
12 V (pulse signal)
4Ground Always 0 V
5
6 Output of signal from variable
intermittent wiper control switch:
"FAST" to "SLOW"Igniting switch: "ACC,"
Variable intermittent wiper
control switch: "FAST" to
"SLOW"0 2.5 V
7
8 Output of backup signal from
windshield wiper switchWindshield low-speed wiper
switch or windshield high-speed
wiper switch: ON0 V
9 Power supply to ignition switch
(IG1)Ignition switch: "ON" Battery positive voltage
10 Output of backup signal from
headlamp switchIgnition switch: "ON,"
Headlamp switch: ON0 V

CHECK AT ECU TERMINAL
SIMPLIFIED WIRING SYSTEM (SWS)54B-484
FRONT-ECU
NOTE: Terminal voltages cannot be measured as the
front-ECU is installed directly on the relay box.
Therefore, this information is only for reference.
TERMINAL
NO.INSPECTION ITEM INSPECTION CONDITION NORMAL VALUE
1 Output to fog lamp relay When the fog lamps are on Battery positive voltage
2 Output to headlamp (high-beam) When headlights (high-beam)
are onBattery positive voltage
3, 4 Battery power supply (for
headlamp)Always Battery positive voltage
5 Battery power supply (for
taillamp)Always Battery positive voltage
6 Output to headlamp (low-beam) When headlights (low-beam) are
onBattery positive voltage
7 Battery power supply (for ECU) Always Battery positive voltage
8 Output to taillamps When taillamps are on Battery positive voltage
9
11
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 wiperWhen 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
headlamp switchHeadlamp switch: ON0 V
26 Input of backup signal to
windshield wiperWindshield low-speed wiper
switch or windshield high-speed
wiper switch: ON0 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

ON-VEHICLE SERVICE
SIMPLIFIED WIRING SYSTEM (SWS)54B-488
ITEM (multi-center display) ADJUSTMENT DETAILS
Lamps Headlamp auto-cutout functionThe headlamp automatic shutoff function can
be set in the following ways.
a. Auto-cutout only when the ignition is turned
OFF and drivers side door is open while
lamps are on (default- 1 minute timer)
b. Auto-cutout when ignition is turned OFF
and driver side door is open at any time
(adjustable- 3 minute timer)
c. No auto-cutout (adjustable)
Dome lamp cutout time The interior dimmer delay period can be set in
the following ways.
a. 0 second
b. 15 seconds
c. 30 seconds (default)
d. 60 seconds
e. 120 seconds
f. 180 seconds
Interior lamp auto-cutout time The period before the interior illumination is
turned off automatically can be set in the
following ways.
a. 3 minutes
b. 30 minutes (default)
c. 60 minutes
d. No auto-cutout
Wipers Windshield wiper speed-sensitive
operationThe speed-sensitive wiper function can be
activated or deactivated. (ON by default)

ENGINE COMPARTMENT
CONFIGURATION DIAGRAMS80-4
ENGINE COMPARTMENTM1801000301403
A-01 (2-B) WHEEL SPEED SENSOR (FRONT:
RH)
A-02 (26-B) ABS-ECU OR ABS/TCL-ECU
A-03 (5-B) WINDSHIELD WIPER MOTOR
A-04 (2-B) WHEEL SPEED SENSOR (FRONT:
LH)
A-05X (4) FOG LAMP RELAY
A-06X (4) HORN RELAY
A-10X (4) FAN CONTROL RELAYA-11X (11) FRONT-ECU
A-12X (11) FRONT-ECU
A-13 (17-GR) FRONT WIRING HARNESS AND
CONTROL WIRING HARNESS
COMBINATION
A-14 (6-GR) GROUNDING CONNECTOR
A-17 (2) SIDE TURN SIGNAL LAMP (LH)
A-18 (2) FRONT TURN SIGNAL LAMP (LH)
A-20 (6) HEADLAMP COMBINATION (LH)

ENGINE COMPARTMENT
CONFIGURATION DIAGRAMS80-5
A-22 (2-B) FOG LAMP (LH)
A-23 (2-Y) FRONT IMPACT SENSOR (LH)
A-24 (3-B) RADIATOR AND CONDENSER FAN
CONTROLLER MODULE
A-25 (2-BR) AMBIENT TEMPERATURE SENSOR
A-26 (2-B) HOOD SECURITY SWITCH
A-27 (2-Y) FRONT IMPACT SENSOR (RH)
A-28 (2-B) FOG LAMP (RH)
A-29 (2) WINDSHIELD WASHER MOTORA-30 (3-B) A/C PRESSURE SENSOR
A-32 (6) HEADLAMP COMBINATION (RH)
A-34 (2) FRONT TURN SIGNAL LAMP (RH)
A-35 (2) SIDE TURN SIGNAL LAMP (RH)
A-36 (1-B) HORN (LOW)
A-37 (1-B) HORN (HIGH)
A-38 (2) CONDENSOR FAN CONNECTION
TO CONTROLLER MODULE

90-1
GROUP 90
CIRCUIT DIAGRAMS
CONTENTS
HOW TO READ CIRCUIT DIAGRAMS90-3
JUNCTION BLOCK . . . . . . . . . . . . . .90-9
JOINT CONNECTOR . . . . . . . . . . . . .90-11
CENTRALISED JUNCTION . . . . . . . .90-12
POWER DISTRIBUTION SYSTEM . .90-18
STARTING SYSTEM . . . . . . . . . . . . .90-21
IGNITION SYSTEM . . . . . . . . . . . . . .90-22
CHARGING SYSTEM . . . . . . . . . . . .90-23
MULTIPOINT FUEL INJECTION (MPI)
SYSTEM . . . . . . . . . . . . . . . . . . . . . . .90-24
COOLING SYSTEM . . . . . . . . . . . . . .90-29
INVECS-II 5A/T . . . . . . . . . . . . . . . . .90-30
HEADLAMPS . . . . . . . . . . . . . . . . . . .90-35
TAIL LAMP, POSITION LAMP, AND
LICENCE PLATE LAMP . . . . . . . . . .90-38
FOG LAMPS . . . . . . . . . . . . . . . . . . .90-41FRONT DOME LAMP, REAR DOME LAMP,
TRUNK LAMP AND IGNITION KEY HOLE
ILLUMINATION LAMP . . . . . . . . . . . .90-44
GLOVE BOX LAMP . . . . . . . . . . . . . .90-48
VANITY MIRROR LAMP. . . . . . . . . . .90-49
TURN-SIGNAL LAMP AND HAZARD
WARNING LAMP . . . . . . . . . . . . . . . .90-50
BACKUP LAMP . . . . . . . . . . . . . . . . .90-54
STOPLAMP. . . . . . . . . . . . . . . . . . . . .90-55
HORN . . . . . . . . . . . . . . . . . . . . . . . . .90-56
METER AND GAUGE . . . . . . . . . . . . .90-57
BRAKE WARNING LAMP, OIL
PRESSURE WARNING LAMP, FUEL
WARNING LAMP . . . . . . . . . . . . . . . .90-60
POWER WINDOWS . . . . . . . . . . . . . .90-62
CENTRAL DOOR LOCKING
SYSTEM . . . . . . . . . . . . . . . . . . . . . . .90-64
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