2005 MITSUBISHI 380 warning light

INPUT SIGNAL PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-437
STEP 2. Check the hazard warning lamp switch.
Remove the hazard warning lamp switch. Refer to GROUP
54A, Hazard Warning Light Switch P.54A-168. Then check
continuity between the switch terminals.
Q: Is the hazard warning lamp switch in good condition?
YES : Go to Step 3.
NO : Replace the hazard warning lamp switch. If the
equipment described in "CIRCUIT OPERATION",
work normally the input signal from the hazard
warning lamp switch should be normal.
STEP 3. Check the ground circuit to the hazard warning
lamp switch. Measure the resistance at hazard warning
lamp switch connector C-08.
(1) Disconnect hazard warning lamp switch connector C-08
and measure the resistance available at the wiring harness
side of the connector.
(2) Measure the resistance value between terminal 2 and
ground.
The resistance should be 2 ohms or less.
Q: Is the measured resistance 2 ohms or less?
YES : Go to Step 5.
NO : Go to Step 4. SWITCH
POSITIONTESTER
CONNECTIONSPECIFIED
CONDITION
Released 1
2 Open circuit
Pressed 1
2 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

GENERAL DESCRIPTION
INTERIOR52A-3
GENERAL DESCRIPTIONM1521000100184
OPERATION
.
Seat belt warning system
If the driver turn the ignition switch to the "ON" posi-
tion without fastening the seat belt, the seat belt
warning light illuminates.
SEAT BELT DIAGNOSISM1523000700182
The seat belt warning system is controlled by the
Simplified Wiring System (SWS). For troubleshoot-
ing, refer to GROUP 54B, SWS diagnosis
P.54B-101.
SPECIAL TOOLSM1521000600327
TOOL TOOL NUMBER AND
NAMESUPERSESSION APPLICATION
MB990784
Ornament removerGeneral service
toolRemoval of switch, trim,
etc.

DASH PANEL
CONFIGURATION DIAGRAMS80-10
DASH PANELM1801000601147
C-02 (22) J/C (3)
C-04 (4) PHOTO SENSOR AND
SECURITY LED
C-05 (20-B) MULTI CENTRE DISPLAY UNIT
C-06 (4) CLOCK DISPLAY CENTRE DISPLAY>
C-07 (2) CLUTCH SWITCH (M/T)
C-08 (4) HAZARD WARNING LIGHT SWITCH
C-11 (2) INSTRUMENT PANEL WIRING
HARNESS AND FRONT WIRING
HARNESS COMBINATIONC-12 (22) INSTRUMENT PANEL WIRING
HARNESS AND FRONT DOOR
WIRING HARNESS (RH)
COMBINATION
C-13 (8) INSTRUMENT PANEL WIRING
HARNESS AND FLOOR WIRING
HARNESS COMBINATION
C-15 (20-B) A/C-ECU
C-16 (16-B) A/C-ECU
C-17 (2) ACCESSORY SOCKET (1)

CIRCUIT DIAGRAMS90-2
AUTOMATIC AIR CONDITIONING
SYSTEM . . . . . . . . . . . . . . . . . . . . . . .90-71
WINDSHIELD WIPER AND WASHER90-75
REAR WINDOW DEFOGGER . . . . . .90-78
REMOTE CONTROLLED MIRROR . .90-79
AUDIO SYSTEM . . . . . . . . . . . . . . . .90-80
ACCESSORY SOCKET . . . . . . . . . . .90-82
CLOCK DISPLAY . . . . . . . . . . . . . . .90-83
MULTI-CENTER DISPLAY . . . . . . . .90-84
SUNROOF . . . . . . . . . . . . . . . . . . . . .90-87
AUTO-CRUISE CONTROL SYSTEM90-89
ANTI-LOCK BRAKING SYSTEM (ABS)
CONTROL (TCL)> . . . . . . . . . . . . . . .90-93
ANTI-LOCK BRAKING SYSTEM (ABS)
CONTROL (TCL)> . . . . . . . . . . . . . . .90-96SUPPLEMENTAL RESTRAINT
SYSTEM (SRS) . . . . . . . . . . . . . . . . . .90-99
ENGINE IMMOBILISER SYSTEM . . .90-103
POWER SEAT WITH MEMORY
(DRIVER). . . . . . . . . . . . . . . . . . . . . . .90-104
POWER SEAT (8-WAY)
(DRIVER AND PASSENGER) . . . . . .90-106
POWER SEAT [(6-WAY) DRIVER] . .90-108
FORGOTTEN KEY PREVENTION
FUNCTION . . . . . . . . . . . . . . . . . . . . .90-109
LIGHTING MONITOR TONE ALARM90-111
IGNITION KEY REMINDER TONE
ALARM . . . . . . . . . . . . . . . . . . . . . . . .90-112
SEAT BELT WARNING TONE
ALARM . . . . . . . . . . . . . . . . . . . . . . . .90-113
DOOR AJAR WARNING TONE
ALARM . . . . . . . . . . . . . . . . . . . . . . . .90-115
RHEOSTAT . . . . . . . . . . . . . . . . . . . . .90-118
CONTROLLER AREA NETWORK
(CAN) . . . . . . . . . . . . . . . . . . . . . . . . .90-119

CENTRALISED JUNCTION
CIRCUIT DIAGRAMS90-13
19 Front-ECU (Field
effect transistor for
headlamp: Low)Fuse 10 Red Headlamp (LH) and headlamp (Low:
LH)
20 Front-ECU (Taillamp
relay)7.5 Brown A/C-ECU, A/T selector lever position
illumination lamp, combination meter,
fog lamp switch, headlamp (RH),
glove box lamp, hazard warning lamp
switch, multi-center display unit,
radio, CD player, rear combination
lamp (RH), rheostat and TCL switch
21 7.5 Brown Headlamp (LH), license plate lamp
and rear combination lamp (LH)
22 Battery/Alternator
(Fusible link No.27)15 Blue A/C-ECU, column switch,
combination meter, ETACS-ECU,
front-ECU, key reminder switch, multi-
center display unit, radio, CD player,
and vanity mirror lamp
23 Ignition switch (ACC) 10 Red A/C-ECU, accessory socket relay,
ETACS-ECU, multi-center display
unit, radio, CD player.
24 Battery/Alternator
(Fusible link No.27)15 Blue Fuel pump module
25 Ignition switch (ACC) 30 Green Front-ECU and windshield wiper
motor
26 Battery/Alternator
(Fusible link No.27)Fusible
link20 Light blue Anti-lock braking system(solenoid
valve)
27
Alternator120
Battery, front-ECU, fusible link Nos.1,
2, 3, 4, 5 and 26 and fuse Nos.6, 7, 8,
9, 10, 11, 13, 14, 15, 22 and 24 (in
relay box) NO. POWER SUPPLY
CIRCUITNAME RATED
CAPACITY (A)HOUSING
COLOURLOAD CIRCUIT

KEYLESS ENTRY SYSTEM
BODY42-67
KEYLESS ENTRY SYSTEM
GENERAL DESCRIPTIONBGBJABIE
Antenna and receiver are incorporated in the
ETACS-ECU.
ID code can be registered by using Diagnostic
tool (MUT-III).
Transmitter is a key holder type, which incorpo-
rates lock button, unlock button, trunk button and
panic button .
When the transmitter unlock button is pressed
once, the driver's door will be unlocked. If the but-
ton is pressed twice, all the doors will be
unlocked. The adjustment function also allows
you to open all the doors by pressing the unlock
button only once. For further details on using the
multi-center display to adjust the unlock opera-
tion, refer to GROUP 54B, On-vehicle Service
P.54B-486.
When the transmitter is operated, the answer-
back function will work as follows:
The answerback operation can be altered as fol-
lows:NOTE: Enabling/disabling the hazard warning
light flashing, the horn sounding in accordance
with the answerback function. For further details
on using the transmitter to adjust answerback,
P.42-72 see the section below. For further details
on using the multi-center display to adjust
answerback, refer to GROUP 54B, On-vehicle
Service P.54B-486. ITEM OPERATION
DOORS LOCKED DOORS UNLOCKED
Dome light Flashes once Illuminates for 15 seconds
Turn-signal lights (RH and LH) Flashes once Flashes twice
Horn Sounds once when the lock button
is pressed with all the doors locked-
ITEM ADJUSTMENT ITEM ADJUSTMENT DETAIL
Keyless entry system
confirmation by turn
signal lightsAdjustment of hazard answerback
when the transmitter is used to
lock doorsWhen adjusting hazard answerback after the
doors are locked with the transmitter, the
following flashing conditions can be selected.
a. Flash (default)
b. No flash
Adjustment of hazard answerback
when the transmitter is used to
unlock doorsWhen adjusting hazard answerback after the
doors are unlocked with the transmitter, the
following flashing conditions can be selected.
a. Flash (default)
b. No flash
Keyless entry system
confirmation by hornAdjustment of horn answerback
when the transmitter is used to
lock doorsWhen adjusting horn answerback after the
doors are locked with the transmitter, the
following horn conditions can be selected.
a. Horn sounds
b. Horn sounds if doors are already locked
(default)
c. Horn does not sound

KEYLESS ENTRY SYSTEM
BODY42-74
To prevent damage to special tool MB991824 (V.C.I.),
always turn the ignition switch to “LOCK” (OFF) position
before connecting or disconnecting special tool MB991824
(V.C.I.).
3. Connect special tool MB991824 (V.C.I.) to the data link
connector.
4. Press the hazard warning light switch six times within 10
seconds.
NOTE: When the hazard warning light switch has been
pressed six times, the ETACS-ECU locks and unlocks the
doors automatically once. The ETACS-ECU is ready to reg-
ister an encrypted code.
NOTE: The hazard warning light switch is a toggle switch.
5. Press the transmitter button, and then press it two times
within 10 seconds of the first press. This will register the
code.
6. When the encrypted code has been registered, the
ETACS-ECU locks and unlocks the doors automatically
once.
7. If you are using two or more transmitters or have added a
second transmitter, the next transmitter should be registered
within one minute after registering the code for the previous
transmitter. The registration procedure is common for all the
transmitter.
8. Registration mode will be canceled under the following
conditions:
When the secret code for four transmitters has been regis-
tered;
When passing one minute after finishing the registration of
all transmitters;
When special tool MB991824 (V.C.I.) is disconnected;
When the key is removed from the key cylinder;
9. After the registration is completed, remove the ignition key
and close all the doors, and then check that the keyless
entry system operates normally.