2005 MITSUBISHI 380 keyless

INPUT SIGNAL PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-436
INSPECTION PROCEDURE N-2: ETACS-ECU does not receive any signal from the hazard warning
lamp switch.
.
CIRCUIT OPERATION
The ETACS-ECU operates the following functions or
systems according to signal from the hazard warning
lamp switch:
Turn-signal lamp buzzer
Hazard warning lamp
Keyless entry system (registering the encrypted
code)
.
TECHNICAL DESCRIPTION (COMMENT)
If the signal is not normal, the equipment or systems
described in "CIRCUIT OPERATION" do not work
normally.
.
TROUBLESHOOTING HINTS
Refer to circuit diagrams GROUP-90
Refer to configuration diagrams GROUP-80
The hazard warning lamp switch may be defec-
tive
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 Tool:
MB991223: Harness Set
STEP 1. Check hazard warning lamp switch connector
C-08 for loose, corroded or damaged terminals, or
terminals pushed back in the connector.
Q: Is hazard warning lamp switch connector C-08 in good
condition?
YES : Go to Step 2.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
P.00E-2. If the equipment described in "CIRCUIT
OPERATION" work normally, the input signal from the
hazard warning lamp switch should be normal.

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

INPUT SIGNAL PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-451
INSPECTION PROCEDURE N-5: ETACS-ECU does not receive any signal from the front door lock
actuator.
.
CIRCUIT OPERATION
The ETACS-ECU operates the following functions or
systems according to signal from the front door lock
actuator:
Central door locking system
Keyless entry system
Dome lamp
.
TECHNICAL DESCRIPTION (COMMENT)
If the signal is not normal, the functions or systems
described in "CIRCUIT OPERATION" do not work
normally.
.
TROUBLESHOOTING HINTS
Refer to circuit diagrams GROUP-90
Refer to configuration diagrams GROUP-80
The front door lock actuator 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

INPUT SIGNAL PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-472
INSPECTION PROCEDURE N-8: Transmitter (integrated into key): ETACS-ECU does not receive any
signal from the lock, unlock, trunk or panic switch.
Whenever the ECU is replaced, ensure that the input signal
circuit is normal.
.
COMMENTS ON TROUBLE SYMPTOM
Refer to circuit diagrams GROUP-90
Refer to configuration diagrams GROUP-80
Input signal from the keyless entry transmitter is used to oper-
ate the keyless entry system. If the signal is abnormal, the key-
less entry system will not work normally.
.
POSSIBLE CAUSES
Malfunction of the ETACS-ECU
Malfunction of the keyless entry transmitter
Defective battery of the keyless entry transmitter
1. Lock switch
2. Unlock switch
3. Trunk switch
4. Panic switch
5. Indicator lamp

INPUT SIGNAL PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-473
DIAGNOSTIC PROCEDURE
Step 1. Pulse check
Check whether the ETACS-ECU receives signal from a trans-
mitter or not. For this check, you should use the 4-button-type
transmitter (integrated with a key), which has already been reg-
istered.
NOTE: For how to register the keyless entry transmitter
encrypted code, refer to GROUP 42
On-vehicle Service
P.42-73.
OK: The MUT-III sounds or the voltmeter needle fluctu-
ates.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Go to Step 4.
Step 2. Check the transmitter battery.
Refer to GROUP 42
Keyless entry system P.42-70.
Q: Is the check result normal?
YES : Go to Step 3.
NO : Replace the keyless entry key integrated transmitter
battery.
Step 3. Register the encrypted code, and then retest the
system.
(1) Register the keyless entry transmitter again.
(2) Check that each signal is received from the keyless entry
transmitter.
Q: Is the check result normal?
YES : The trouble can be an intermittent malfunction (Refer
to GROUP 00
How to Cope with Intermittent
Malfunction P.00-14).
NO : Replace the keyless entry transmitter.
Step 4. Retest the system.
Check that each signal is received from the keyless entry key
integrated transmitter.
Q: Is the check result normal?
YES : The trouble can be an intermittent malfunction (Refer
to GROUP 00
How to Cope with Intermittent
Malfunction P.00-14).
NO : Replace the ETACS-ECU. System switch Check condition
Keyless entry transmitter
"LOCK/UNLOCK" switchWhen the switch is
turned from off to on
Keyless entry transmitter
"Panic" switchWhen the switch is
turned from off to on
Keyless entry transmitter
"Trunk" switchWhen the switch is
turned from off to on

CHECK AT ECU TERMINAL
SIMPLIFIED WIRING SYSTEM (SWS)54B-481
22 Output to door unlock (for
driver's door)When driver's door lock actuator
is operating (doors unlocked)Battery positive voltage
23, 24
25 Input of door lock key cylinder
switch (UNLOCK) signalDoor lock key cylinder switch:
UNLOCK0 V
26
28
29 Input of rear door lock actuator
(UNLOCK) signalRear door lock actuator:
UNLOCK0 V
30 Input of key reminder switch
signalKey reminder switch: ON (when
ignition key is removed)0 V
31, 32
33 Input of door lock switch (LOCK)
signalDoor lock switch (incorporated in
power window switch): LOCK0 V
34 Input of door lock switch
(UNLOCK) signalDoor lock switch (incorporated in
power window switch): UNLOCK0 V
35 Input from rear door switch (RH) Rear door switch (RH): ON (rear
door (RH) open)0 V
36 Input of driver's door lock
actuator (UNLOCK) signalDriver's door lock actuator:
UNLOCK0 V
37 Input from trunk lid latch
assemblyTrunk lid latch: ON (trunk open) 0 V
38 Ground (for sensor) Always 0 V
39
41
42 Input of door lock key cylinder
switch (LOCK) signalDoor lock key cylinder switch:
LOCK0 V
43 Input of front passenger's door
lock actuator (UNLOCK) signalFront passenger’s door lock
actuator: UNLOCK0 V
44 Output to horn relay When a horn sounds by the
keyless entry horn answerback
function2 V or less
45 Output to data link connector When DTC sets 0
12 V (pulse signal)
When input check signal is
output0
12 V (when input
pulse signal is
fluctuating)
46 Output to trunk lamp When trunk lid latch on. 0 V
47
48 Input of fog lamp switch signal Fog lamp switch: ON 0 V
49 Input of hazard warning lamp
switch signalHazard warning lamp switch: ON
(When the switch is depressed)0 V
50 Ground (for sensor) Always 0 V
51 Key Ring Antenna (+) 0 V 0 V
52 Key Ring Antenna (-) 0 V 0 V
53 SWS communication line Always 0
12 V (pulse signal) TERMINAL
NO.INSPECTION ITEM INSPECTION CONDITION NORMAL VALUE

ON-VEHICLE SERVICE
SIMPLIFIED WIRING SYSTEM (SWS)54B-489
Keyless entry and
power door lock
systemKeyless entry system confirmation
by hornThe horn answerback honking conditions can
be set in the following ways.
a. Horn sounds
b. Horn sounds if doors are already locked
c. Horn does not sound (default)
Keyless entry system confirmation
by turn-signal lampsThe hazard answerback flashing conditions
can be set in the following ways.
a. Locking and unlocking (default)
b. Locking only
c. Unlocking only
d. No indication
Time until automatic relocking after
unlock operation using keyless
entry systemThe timed lock period after unlocking with the
keyless entry transmitter can be set to the
following times.
a. 30 seconds (default)
b. 60 seconds
c. 120 seconds
d. 180 seconds
Unlock operation using keyless
entry system or door keyThe unlocking operations after unlocking with
or without a key can be set in the following
ways.
a. Unlock driver's door on first unlock
operation, and unlock all doors on second
unlock operation (default)
b. Unlock all doors on first unlock operation
Buzzers Turn-signal buzzer The turn-signal buzzer function can be
activated or deactivated. (OFF by default)
Door-ajar warning buzzer The door ajar warning buzzer function can be
activated or deactivated (ON by default).
Default Initialization of above mentioned functions ITEM (multi-center display) ADJUSTMENT DETAILS

BODY42-2
DOOR . . . . . . . . . . . . . . . . . . . . . . . . .42-23
GENERAL DESCRIPTION . . . . . .
42-23
CENTRAL DOOR LOCKING SYSTEM
DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . 42-23
POWER WINDOW DIAGNOSIS . . . . . . 42-23
DOOR DIAGNOSIS . . . . . . . . . . . . . . . . 42-23
INTRODUCTION TO GLASS AND DOOR
DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . 42-23
GLASS AND DOOR DIAGNOSTIC
TROUBLESHOOTING STRATEGY . . . 42-23
SYMPTOM CHART . . . . . . . . . . . . . . . . 42-24
SYMPTOM PROCEDURES . . . . . . . . . 42-24
HOW TO LOCATE WIND NOISE . . . . . 42-27
SPECIAL TOOLS. . . . . . . . . . . . . .42-28
ON-VEHICLE SERVICE. . . . . . . . .42-30
DOOR FIT ADJUSTMENT. . . . . . . . . . . 42-30
DOOR WINDOW GLASS ADJUSTMENT42-31
GLASS SLIDING MECHANISM CHECK
AND ADJUSTMENT . . . . . . . . . . . . . . . 42-32
POWER WINDOW TIMER FUNCTION
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . 42-32
POWER WINDOW OPERATING
CURRENT CHECK . . . . . . . . . . . . . . . . 42-33
POWER WINDOW RELAY CHECK . . . 42-33
CIRCUIT BREAKER (INCORPORATED IN
THE POWER WINDOW MOTOR)
INSPECTION . . . . . . . . . . . . . . . . . . . . . 42-34
POWER WINDOW CHECK . . . . . . . . . . 42-34
CENTRAL DOOR LOCKING SYSTEM
INSPECTION . . . . . . . . . . . . . . . . . . . . . 42-34
DOOR OUTSIDE HANDLE PLAY CHECK42-35
DOOR INSIDE HANDLE PLAY CHECK 42-35
DOOR ASSEMBLY . . . . . . . . . . . .42-37
REMOVAL AND INSTALLATION . . . . . 42-37
INSPECTION . . . . . . . . . . . . . . . . . . . . . 42-38
DOOR GLASS AND REGULATOR42-39
REMOVAL AND INSTALLATION . . . . . 42-39
INSPECTION . . . . . . . . . . . . . . . . . . . . . 42-43
DOOR HANDLE AND LATCH . . . .42-46
REMOVAL AND INSTALLATION . . . . . 42-46
INSPECTION . . . . . . . . . . . . . . . . . . . . . 42-49
WINDOW GLASS RUNCHANNEL
AND DOOR OPENING
WEATHERSTRIP . . . . . . . . . . . . . .
42-52
REMOVAL AND INSTALLATION . . . . . . 42-52
TRUNK LID. . . . . . . . . . . . . . . . 42-60
TRUNK LID DIAGNOSIS . . . . . . . .
42-60
INTRODUCTION TO TRUNK LID
DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . 42-60
TRUNK LID DIAGNOSTIC
TROUBLESHOOTING STRATEGY . . . . 42-60
SYMPTOM CHART . . . . . . . . . . . . . . . . 42-60
SYMPTOM PROCEDURES . . . . . . . . . . 42-60
ON-VEHICLE SERVICE . . . . . . . . .42-61
ADJUSTMENT OF CLEARANCE
AROUND TRUNK LID . . . . . . . . . . . . . . 42-61
TRUNK LID LATCH ADJUSTMENT. . . . 42-61
TRUNK LID HEIGHT ADJUSTMENT . . . 42-62
TRUNK LID . . . . . . . . . . . . . . . . . . .42-63
REMOVAL AND INSTALLATION . . . . . . 42-63
INSPECTION . . . . . . . . . . . . . . . . . . . . . 42-65
KEYLESS ENTRY SYSTEM 42-67
GENERAL DESCRIPTION . . . . . . .
42-67
KEYLESS ENTRY SYSTEM
DIAGNOSIS . . . . . . . . . . . . . . . . . .
42-68
SPECIAL TOOL . . . . . . . . . . . . . . .42-68
ON-VEHICLE SERVICE . . . . . . . . .42-69
TRANSMITTER BATTERY CHECK . . . . 42-69
HOW TO REPLACE THE TRANSMITTER
BATTERY . . . . . . . . . . . . . . . . . . . . . . . . 42-70
KEYLESS ENTRY SYSTEM INSPECTION42-71
KEYLESS ENTRY SYSTEM TIMER LOCK
FUNCTION INSPECTION . . . . . . . . . . . 42-71
ENABLING/DISABLING THE
ANSWERBACK FUNCTION . . . . . . . . . 42-72
HOW TO REGISTER SECRET CODE . 42-73
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