ESP MITSUBISHI 380 2005 Workshop Manual

SWS DIAGNOSIS
SIMPLIFIED WIRING SYSTEM (SWS)54B-17
ETACS
NOTE: For item No.43, the diagnostic tool
MB991958 (MUT-III Sub Assembly) also displays
"ON" when the lamp reminder tone alarm or the seat
belt tone alarm function is triggered.
.
CHECK
ITEMITEM NO. DISPLAY ON
DIAGNOSTIC
TOOLCHECK CONDITION NORMAL
CONDITION
Tone alarm 43 BUZZER When requirements for sounding each
warning tone alarm are not satisfiedOFF
Front fog
lamps36 F.FOG LAMP
1. Lighting switch: HEAD
2. Fog lamp switch: ONON
Other than the condition above OFF
Driver’s door
switch32 FRONT DOOR
SWDriver’s door switch and Front passenger’s
door switch is on ON
Driver’s door switch and Front passenger’s
door switch is offOFF
Headlamp
automatic
shutoff
function35 H/L AUTO-CUT
1. Lighting switch: Other than OFF
2. Ignition switch: from ON or START to
LOCK (OFF) or ACC
3. Front door switch: ON (front door open) OFF to ON (after
approximately one
second)
When requirements for the headlamp
automatic shutoff are not satisfiedOFF
Ignition
switch (ACC)31 IG SW (ACC) Ignition switch: ACC or ON ON
Ignition switch: LOCK (OFF) or START OFF
Ignition
switch (IG1)30 IG SW (IG1) Ignition switch: ON or START ON
Ignition switch: LOCK (OFF) or ACC OFF
Windshield
intermittent
wiper interval37 INT WIPE
TIME1. Ignition switch: ACC or ON
2. Operate the intermittent wiper control,
and change the wiper intervalThe diagnostic tool
MB991958
(MUT-III Sub
Assembly)
displays
intermittent wiper
interval in
response to the
intermittent wiper
control positions.

SWS DIAGNOSIS
SIMPLIFIED WIRING SYSTEM (SWS)54B-18
Front-ECU, P/W, S/R
NOTE: For item No.70, the diagnostic tool
MB991958 (MUT-III Sub Assembly) also displays
"NG" under "ECU COMM Check" when it displays
"NO ACK" under the front-ECU check.NOTE: For item No.72, the diagnostic tool
MB991958 (MUT-III Sub Assembly) also displays
"NG" under "ECU COMM Check" when it displays
"NO ACK" under the sunroof-ECU check.

The table below shows the service data and their
normal condition, which are displayed during the
"Function Diag." The column "Normal condition"
shows values that are shown when each operation is
made.
.
CHECK
ITEMITEM NO. DISPLAY ON
DIAGNOSTIC
TOOLCHECK CONDITION NORMAL
CONDITION
Response by
the
front-ECU70 FRONT ECU
ACKLighting switch: Other than OFF (excluding
when high-beam is on) or the wiper switch
is at position other than OFF (ignition
switch: ACC or ON)NORMAL ACK
Ignition switch: Other than ON
Lighting switch: OFF
Wiper switch: OFFSLEEP ACK
Lighting switch: HEAD
Headlights: at high beamHI-BEAM ACK
Other than the condition above NO ACK
Response by
the
sunroof-ECU72 S/R ECU ACK
1. Door switch: OFF
2. Ignition switch: ON
OFF
3. While sunroof is offNORMAL ACK

SLEEP ACK (after
approximately 30
seconds)
1. Ignition switch: ON or START
2. One of the sunroof switches is onINPUT CHECK to
NORMAL ACK
Other than the above conditions NO ACK

SWS DIAGNOSIS
SIMPLIFIED WIRING SYSTEM (SWS)54B-19
WIPER
ITEM ITEM NO. INPUT SIGNAL DISPLAY ON
DIAGNOSTIC TOOLNORMAL CONDITION
F.WIPER HI 05 Windshield
intermittent wiper
switchINT WIPER SW (COLUMN
ECU)OFF
06 Windshield
low-speed wiper
switchLO WIPER SW (COLUMN
ECU)OFF
07 Windshield
high-speed wiper
switchHI WIPER SW (COLUMN
ECU)ON
08 Windshield mist
wiper switchMIST WIPER SW
(COLUMN ECU)OFF
09 Windshield washer
switchFRONT WASH.SW
(COLUMN ECU)OFF
31 Ignition switch
(ACC)IG SW (ACC) (ETACS ECU) ON
70 Response by the
front-ECUFRONT ECU ACK (FRONT
ECU)NORMAL ACK or HI-BEAM
ACK
F.WIPER INT 05 Windshield
intermittent wiper
switchINT WIPER SW (COLUMN
ECU)ON
06 Windshield
low-speed wiper
switchLO WIPER SW (COLUMN
ECU)OFF
07 Windshield
high-speed wiper
switchHI WIPER SW (COLUMN
ECU)OFF
08 Windshield mist
wiper switchMIST WIPER SW
(COLUMN ECU)OFF
09 Windshield washer
switchFRONT WASH.SW
(COLUMN ECU)OFF
31 Ignition switch
(ACC)IG SW (ACC) (ETACS ECU) ON
37 Windshield
intermittent wiper
intervalINT WIPE TIME (ETACS
ECU)The diagnostic tool
MB991958 (MUT-III Sub
Assembly) displays
intermittent wiper interval in
response to the intermittent
wiper control positions.
70 Response by the
front-ECUFRONT ECU ACK (FRONT
ECU)NORMAL ACK or HI-BEAM
ACK

SWS DIAGNOSIS
SIMPLIFIED WIRING SYSTEM (SWS)54B-20
.
F.WIPER LO 05 Windshield
intermittent wiper
switchINT WIPER SW (COLUMN
ECU)OFF
06 Windshield
low-speed wiper
switchLO WIPER SW (COLUMN
ECU)ON
07 Windshield
high-speed wiper
switchHI WIPER SW (COLUMN
ECU)OFF
08 Windshield mist
wiper switchMIST WIPER SW
(COLUMN ECU)OFF
09 Windshield washer
switchFRONT WASH.SW
(COLUMN ECU)OFF
31 Ignition switch
(ACC)IG SW (ACC) (ETACS ECU) ON
70 Response by the
front-ECUFRONT ECU ACK (FRONT
ECU)NORMAL ACK or HI-BEAM
ACK
F.WIPER MIST 05 Windshield
intermittent wiper
switchINT WIPER SW (COLUMN
ECU)OFF
06 Windshield
low-speed wiper
switchLO WIPER SW (COLUMN
ECU)OFF
07 Windshield
high-speed wiper
switchHI WIPER SW (COLUMN
ECU)OFF
08 Windshield mist
wiper switchMIST WIPER SW
(COLUMN ECU)ON
09 Windshield washer
switchFRONT WASH.SW
(COLUMN ECU)OFF
31 Ignition switch
(ACC)IG SW (ACC) (ETACS ECU) ON
70 Response by the
front-ECUFRONT ECU ACK (FRONT
ECU)NORMAL ACK or HI-BEAM
ACK
F. W I P E R
WASH08 Windshield mist
wiper switchMIST WIPER SW
(COLUMN ECU)OFF
09 Windshield washer
switchFRONT WASH.SW
(COLUMN ECU)ON
31 Ignition switch
(ACC)IG SW (ACC) (ETACS ECU) ON
70 Response by the
front-ECUFRONT ECU ACK (FRONT
ECU)NORMAL ACK or HI-BEAM
ACK ITEM ITEM NO. INPUT SIGNAL DISPLAY ON
DIAGNOSTIC TOOLNORMAL CONDITION

SWS DIAGNOSIS
SIMPLIFIED WIRING SYSTEM (SWS)54B-21
LAMPING
ITEM ITEM NO. INPUT SIGNAL DISPLAY ON
DIAGNOSTIC TOOLNORMAL CONDITION
H/L AUTO-CUT 00 Headlight switch
HEADLAMP SW (COLUMN
ECU)Either is ON
01 Taillight 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 Headlight
automatic shutoff
functionH/L AUTO-CUT (ETACS
ECU)ON
70 Response by the
front-ECUFRONT ECU ACK (FRONT
ECU)NORMAL ACK or SLEEP
ACK
OFF 00 Headlight switch
HEADLAMP SW (COLUMN
ECU)OFF
01 Tail lamp switch TAILLAMP SW (COLUMN
ECU)OFF
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 or SLEEP
ACK
HEADLAMP HI00 Headlight switch
HEADLAMP SW (COLUMN
ECU)ON
02 Dimmer switch DIMMER SW (COLUMN
ECU)ON or OFF
03 Passing lamp
switchPASSING SW (COLUMN
ECU)OFF
30 Ignition switch
(IG1)IG SW (IG1) (COLUMN
ECU)ON
35 Headlight
automatic shutoff
functionH/L AUTO-CUT (COLUMN
ECU)OFF
70 Response by the
front-ECUFRONT ECU ACK
(COLUMN ECU)HI-BEAM ACK

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-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

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-129
INSPECTION PROCEDURE C-2: Central Door Locking System: Some Doors do not Lock or Unlock.
.
CIRCUIT OPERATION
The ETACS-ECU operates the central door lock
system according to the following signals:
Front door lock actuator switch
Door lock key cylinder switch
Door lock switch, which is incorporated in the
power window main switch or front power win-
dow sub switch
The ETACS-ECU locks or unlocks all the doors
(except liftgate and glass hatch lock) by operating
the central door lock relay (incorporated in the
ECU) in response to input signals.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-149
POWER WINDOW MAIN SWITCH FUNCTION
The main switch is located on the driver’s door.
Raises the driver’s power window
When the driver’s power window switch on the power window
main switch is pulled up, the system energizes its respective
power window motor, and then the driver’s window glass rises.
Lowers the driver’s power window
When the driver’s power window switch on the power window
main switch is pushed down, the system energizes its respec-
tive power window motor, and then the driver’s window glass
lowers.
Lowers the driver’s power window by one-touch down
function
When the driver’s power window switch on the power window
main switch is pushed down fully, the system energizes its
respective power window motor, and then the driver’s window
glass moves to its lowest position.
Raises the passenger’s power window
When the passenger’s power window switch on the power win-
dow main switch is pulled up, the system energizes its respec-
tive power window motor, and then the passenger’s window
glass rises.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-150
Lowers the passenger’s power window
When the passenger’s power window switch on the power win-
dow main switch is pushed down, the system energizes its
respective power window motor, and then the passenger’s win-
dow glass lowers.
POWER WINDOW SUB SWITCH FUNCTION
The sub switches are located on the passenger’s doors.
Raises the passenger’s power window
When the power window sub switch is pulled up, the system
energizes its respective power window motor, and then the
passenger’s window glass rises.
Lowers the passenger’s power window
When the power window sub switch is pushed down, the sys-
tem energizes its respective power window motor, and then the
passenger’s window glass lowers.
Power window timer function
Even after the ignition is switched off, the ETACS-ECU keeps
the power window relay activated for approximately 30 sec-
onds, enabling raising and lowering of the power windows by
using the power window switches. After approximately 30 sec-
onds, the power window relay is deactivated.
During this timed operation, if the driver or passenger doors are
opened, the power window relay is deactivated from that
moment.