Trunk lock MITSUBISHI 380 2005 User Guide

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-376
NOTE: Also check intermediate connector C-28 and junction
block connector C-204 for loose, corroded, or damaged termi-
nals, or terminals pushed back in the connector. If intermediate
connector C-28 or junction block connector C-204 is damaged,
repair or replace the damaged component(s) as described in
GROUP 00E, Harness Connector Inspection P.00E-2.
Q: Is the wiring harness between trunk lamp connector
D-10 (terminals 1 and 2) and ETACS-ECU connector
C-219 (terminal 6) or C-218 (terminal 46) in good
condition?
YES : Replace the trunk lamp. Check that the trunk lamp
illuminates normally.
NO : The wiring harness may be damaged or the
connector(s) may have loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Repair the wiring harness as necessary. Check that
the trunk lamp illuminates normally.
INSPECTION PROCEDURE K-3: Interior lamp: Dome lamp dimming function does not work normally.
NOTE: This troubleshooting procedure requires the
use of diagnostic tool MB991958 and SWS monitor
kit MB991813. For details on how to use the SWS
monitor, refer to "How to connect SWS monitor
P.54B-13."
.

SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)54B-390
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
MB991813: SWS Monitor Kit
MB991806: SWS Monitor Cartridge
MB991812: SWS Monitor Harness (For Column-ECU)
MB991822: Test Probe Harness
STEP 1. Check the interior lamps.
If the interior lamp switch is moved to the "door interlock posi-
tion", the interior lamps should illuminate when either door is
opened.
Q: Do the interior lamp illuminate normally?
All the interior lamps illuminate normally. : Go to Step 2.
None of the interior lamps illuminate normally. : Refer to
Inspection Procedure K-1 "The dome lamp do not
illuminate and go out normally P.54B-359."
Some of the interior lamps do not illuminate normally. :
Refer to Inspection Procedure K-2 "The front dome
lamp, rear dome lamp or trunk lamp do not illuminate
or go out normally P.54B-366."
STEP 2. Check the adjustment function.
Q: Has a setting other than "No auto-shutoff" been
selected for the interior lamp automatic shutdown
function by the adjustment function?
YES : Go to Step 3.
NO : Set the interior lamp automatic shutdown function to
another setting other than "No auto-shutoff".

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

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
Continued on next page

CROSSMEMBER
POWER PLANT MOUNT32-9
CROSSMEMBER
REMOVAL AND INSTALLATIONM1321003200551
Before removing the steering wheel and air bag module assembly, always refer to GROUP 52B -
Service Precautions (P.52B-16), Air bag Module and Clock Spring (P.52B-237). Also, set the front
wheels so that they are facing straight forward, and remove the ignition key. If you fail to do this,
the SRS clock spring will be damaged, causing the SRS air bag to be inoperative and serious
injury.
*1: Indicates parts which should be initially tightened, and then fully tightened after placing the
vehicle horizontally and loading the full weight of the engine on the vehicle body.
*2: Indicates parts which should be temporarily tightened, and then fully tightened with the vehicle
on the ground in the unladen condition.
Pre-removal Operation
Power Steering Fluid Draining (Refer to GROUP 37,
On-vehicle Service Fluid Replacement P.37-18).
Power Steering Hoses Removal and Installation (Refer to
GROUP 37, Power Steering Hoses P.37A-57).
Air Bag Module and Steering Wheel Assembly Removal
(Refer to GROUP 37, Steering Wheel P.37-23).
Clock Spring Removal (Refer to GROUP 52B, Air Bag
Module and Clock Spring P.52B-237).
Floor Console Assembly Removal (Refer to GROUP 52A,
Floor Console Assembly P.52A-10).
Front Scuff Plate (LH) and Cowl Side Trim (LH) Removal
(Refer to GROUP 52A, Trims P.52A-11).
Trunk Lid Release Handle Cover Removal (Refer to
GROUP 42, Trunk Lid P.42-63).
Accelerator Stopper Removal (Refer to GROUP 17,
Accelerator Pedal P.17-9).
Front Floor Carpet Removal
Centremember Removal (Refer to P.32-7).Post-installation Operation
Centremember Installation (Refer to P.32-7).
Front Floor Carpet Installation
Accelerator Stopper Installation (Refer to GROUP 17,
Accelerator Pedal P.17-9).
Trunk Lid Release Handle Cover Installation (Refer to
GROUP 42, Trunk Lid P.42-63).
Front Scuff Plate (LH) and Cowl Side Trim (LH) Installa-
tion (Refer to GROUP 52A, Trims P.52A-11).
Floor Console Assembly Installation (Refer to GROUP
52A, Floor Console Assembly P.52A-10).
Clock Spring Installation (Refer to GROUP 52B, Air Bag
Module and Clock Spring P.52B-237).
Steering Wheel Assembly and Air Bag Module Installation
(Refer to P.37-23).
Check the dust cover for cracks or damage by pushing it
with your finger.
Power Steering Fluid Supplying (Refer to GROUP 37,
On-vehicle Service Fluid Replacement P.37-18).
Power Steering Fluid Line Bleeding (Refer to P.37-18).
Checking Steering Wheel Position with Wheels Straight
Ahead.
Front Wheel Alignment Adjustment (Refer to GROUP 33,
On-vehicle Service
Front Wheel Alignment Check and
Adjustment P.33-6).

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
Continued on next page

TRUNK LID
BODY42-60
TRUNK LID
TRUNK LID DIAGNOSIS
INTRODUCTION TO TRUNK LID DIAGNOSISM1421005800374
Difficult locking and unlocking, uneven clearance and
height, and wind noise from the trunk lid may be
caused by improper adjustment of the trunk lid.
TRUNK LID DIAGNOSTIC TROUBLESHOOTING STRATEGYM1421005900348
Use these steps to plan your diagnostic strategy. If
you follow them carefully, you will be sure that you
have exhausted most of the possible ways to find a
trunk lid fault.
1. Gather information from the customer.2. Verify that the condition described by the
customer exists.
3. Find the malfunction by following the Symptom
Chart.
4. Verify malfunction is eliminated.
SYMPTOM CHARTM1421006000382
SYMPTOM PROCEDURES
INSPECTION PROCEDURE 1: Difficult Locking and Unlocking
DIAGNOSIS
STEP 1. Check the function of trunk lid opening
switch inside glove compartment.
Q: Can the latch unlocking mechanism noise "click"
be heard when operating the switch
YES :
Go to Step 2.
NO : Check switch circuit. Refer to P.42-65.
Then go to Step 2.
STEP 2. Check the engagement of the trunk lid
latch and trunk lid striker.
Q: Are the trunk lid latch and trunk lid striker engaged
correctly?
YES :
Then go to Step 3.
NO : Adjust the trunk lid latch. Refer to P.42-61.
STEP 3. Retest the system.
Q: Does the trunk lid lock operate easily?
YES :
The procedure is complete.
NO : Return to Step 1.
INSPECTION PROCEDURE 2: Uneven Body Clearance
DIAGNOSIS
STEP 1. Check the clearance around the trunk
lid..
Q: Are the apertures between the trunk lid and the adjacent body panels aligned correctly?
YES :
Then go to Step 2.
NO : Adjust the trunk lid panel assembly. Refer to
P.42-61. SYMPTOM INSPECTION
PROCEDUREREFERENCE PAGE
Difficult locking and unlocking 1
P.42-60
Uneven body clearance 2
P.42-60
Uneven height 3
P.42-61

TRUNK LID
BODY42-61
STEP 2. Retest the system.
Q: Are the clearances between the body panels even?
YES :
The procedure is complete.
NO : Return to Step 1.
INSPECTION PROCEDURE 3: Uneven Height
DIAGNOSIS
STEP 1. Check the trunk lid bumper height.
Q: Is the trunk lid bumper height proper?
YES :
Then go to Step 2.
NO : Adjust the trunk lid bumper. Refer to
P.42-62.
STEP 2. Retest the system.
Q: Are the trunk lid and body height even?
YES :
The procedure is complete.
NO : Return to Step 1.
ON-VEHICLE SERVICE
ADJUSTMENT OF CLEARANCE AROUND TRUNK
LID
M1421008100040
Loosen the trunk lid panel assembly mounting bolt and nut, and
move the trunk lid panel assembly to make the clearance
around the trunk lid even.
TRUNK LID LATCH ADJUSTMENTM1421008600012
After checking the trunk lid release cable for proper routing,
loosen the trunk lid latch mounting bolts. Change the position of
the trunk lid latch relative to the trunk lid striker so that trunk lid
locking and unlocking effort is correct.