1991 MITSUBISHI 3000GT window

15-4INTAKE AND EXHAUST -Troubleshooting (Active Exhaust System)
TROUBLESHOOTING (ACTIVE EXHAUST SYSTEM)MlSEBAA
TROUBLESHOOTING PROCEDURE(1) Make sure that the valve operating cable is not dislocated.
(2) Make sure that the connectors of each component are positively connected and that no fuse has blown.
(3) Have an overall understanding of the substance and procedure of checking by reference to the
Troubleshooting Quick-Reference Table and perform check in the proper sequence.
(4) Check each component with its connectors disconnected.
TROUBLESHOOTING QUICK-REFERENCE TABLEIf no abnormality is found in all parts by the check performed in the following sequence, the problem is
probably caused by faulty active exhaust control unit and therefore the active exhaust control unit is replaced.
Se-Part to becheckedCheckingprocedureJudgement
Probable causeluenceRemedy
Normal
Abnormal
1ValveOperate valve
manually.Operates freely.Does not operate.Valve stickingReplace mainmuffler.
2ActiveRefer to P.15-34.exhaustFaulty switchReplace switch.
switch
3PowerwindowCheck continuity
between terminalsContinuity presentNo continuity
Faulty power
relay
@and @of
relay.window relayReplace power
window relay.
With battery voltage
applied between
terminals @and
@of relay, check
continuity between
terminals
@ and @of relay.
4
Actuator
Check contrnuityassembly
between terminalsNO continuity present
between terminalsContinuity present
between terminals
in SPORT mode.@and 0.@and 0.
Continuity present
between terminalsNo continuity present
between terminals
@and
0.@and 0.
Check continuity
between terminalsContinuity present
between terminalsNO continuity presentbetween terminalsFaulty actuator
Replace actuator
while idling in
@and 0.@and @assemblyassembly.
TOUR mode.NO continuity present
between terminalsContinuity present
between terminals
@and
0.@and 0.
Apply battery
Motor operates.Motor does not
voltage between
terminals @andoperate.
0.Motor turns inMotor does not
reverse directionturn.when polarity is
reversed.
5CableOperate activeBroken orexhaust switchActuator operates
and valve operatesActuator operates,
but valve doesReplace or adjust
(while idling)
as well.not work.maladjusted cable cable
TSB Revision

42-1
BODY
CONTENTSM42AA- -
CENTER PILLAR GLASS........................................................32
CENTRAL DOOR LOCKING SYSTEM
................................55
DOOR ASSEMBLY....................................................................40
DOOR GLASS AND REGULATOR
........................................42
DOOR HANDLE AND LATCH
................................................54
DOOR TRIM AND WATERPROOF FILM
............................41
DRIP LINE WEATHERSTRIP....................................................65
ENGINE HOOD........................................................................18
FENDER*....................................................................................23
FUEL TANK FILLER DOOR
....................................................22
LIFTGATE....................................................................................20
LIFTGATE GLASS....................................................................37
LOOSE PANEL
........................................................................24
POWER WINDOW
....................................................................43
QUARTER WINDOW GLASS
................................................33SERVICE ADJUSTMENT PROCEDURES
............................
Door Adjustment................................................................Door inside Handle Play Check............................................Door Window Glass Adjustment........................................Floor Pan inspection............................................................Fuel Filler Door Adjustment................................................Hood Adjustment................................................................Liftgate Adjustment............................................................
SPECIAL TOOLS........................................................................
SPECIFICATIONS....................................................................
General Specifications........................................................Sealants and Adhesives........................................................
ServiceSpecifications........................................................
TROUBLESHOOTING............................................................
WINDOW GLASS....................................................................
WINDSHIELD............................................................................
13
14
16
14
17
14
13
13
4
2
2
3
3
5
25
28
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
(1)A Supplemental Restraint System (SRS), which uses a driver-side air bag, has been installed in the 3000GT.(2)The SRS includes the following components: impact sensors, SRS diagnosis unit: SRS warning light, air bagmodule, clock spring, interconnecting wiring. Other SRS-related components (that may have to be
removed/installed in connection with SRS service or maintenance) are indicated in the table of contents byan asterisk (*).
WARNING!(1)Improper service or maintenance of any component of the SRS, or any SRS-related component, can lead to
personal injury or death to service personnel (from inadvertent firing of the air bag) or to the driver (from
rendering the SRS inoperative).
(2) Service or maintenance of any SRS component or SRS-related component must be performed only at an
authorized MITSUBISHI dealer.(3) MITSUBISHI dealer personnel must thoroughly review this manual, and especially its GROUP 52B
-Supplemental Restraint System (SRS), before beginning any service or maintenance of any component of the
SRS or any SRS-related component.

42-2BODY - SDecifications
SPECIFICATIONS
GENERAL SPECIFICATIONS
M42CA. -
Items
Hood
Type
Specifications
Rear hinged, front
opening type (with gas damper)
Door
Construction
Regulator system
Locking system
Liftgate
Type
Front-hinged, sashless
Wire type
Pin-fork type
Inner-hinged, with gas damper
Glass installation method
Windshield glassAdhesive type
Quarter window glassAdhesive type
Liftgate window glassAdhesive type
Glass thicknessmm (in.)
Windshield glass5.3 (.21)
Liftgate window glass3.5 (.I41
Door glass5.0 f.20)
Quarter window glass3.5 (.14)
Power window motor
TypePermanent magnet type (Built-in circuit breaker)
Revolutions under no load
rpm75 or more
Revolutions under load
vm
At 1 Nm (.72 ft.lbs.145-75
At 2 Nm (1.45 ft.lbs.)50-80
Bound current A
34 or less
Direction of rotationClockwise and counter-clockwise
Power window main switch
TypeAutomatic reset type
Rated load currentA
Lock switch
10Power window switch
10
Power window sub switch
TypeAutomatic reset type
Rated load currentA10
Power window relay
Maximum contact current
A20
Rated coil current
AMax. 0.2
Voltage drop between terminals
V0.2 or less
(At 12 V and the rated load current)TSB Revision

BODY - SDecifications
L
)
L
Item
Door lock power relay
Range of voltage used
V
Rated load current (at 13.5 VIA
Rated coil current
A
Voltage drop between terminals
V
Door lock actuator
Bound current (at 12
V)A
Operating voltage range
V
*Tripping time (at 12 VIsecond
Specifications8-16
IO
0.2 or less
0.2 or less
2.5
- 4.59-15
5-30
NOTE*: Tripping time is the time consumed until current reaches 0.5 A after power connection
SERVICE SPECIFICATIONSM42CB. -
ItemsStandard value
Play of door inside handlemm (in.)
A (play)
B (OPEN)
C (FULL)
Adjustmentof glass
inclination
amountFront pillarRoof
7 (.28)
46 f 9 (1.81 31 .35)
69 (2.72)
11.7 I!I 1 .O (.46 ?I .04)
11.8 f 1 .O (.46 + ,041L
SEALANTS AND ADHESIVES
Adjustment
of glass
longitudinal
inclinationQuarter pillar
Front
pillar
Roof
Quarter pillar20.5
f 1 .O (.80 f .04)7.0
i 1 .O (.28 -+ ,0417.7
If: 1 .o i.30 5 ,04112.0
f 1 .o I.47 + .04)
M42CE- -
Items1 Specified sealantRemarks
Front fender panel
Splash shield
Waterproof film
3M ATD Part No. 8625 or equivalentRibbon sealer
Windshield3M SUPER FAST URETHAN 8609 or equivalentQuarter window glass.and 3M SUPER FAST URETHAN PRIMER 8608
Liftgate glassor equivalentTSB Revision

TROUBLESHOOTING
BODY - Troubleshooting42-5
M42EABE
HOOD, LIFTGATE, GLASS AND DOORS
LSymptom
Probable cause
Remedy
Hood/
Improper closureLiftgateStriker and latch not properly alignedAdjust the alignment
Difficult locking and
unlockingStriker and latch not properly alignedAdjust the alignment
Uneven bodyclearanceIncorrectly installed hood or liftgateAdjust the installation of
hood, deck lid or liftgate
Uneven height
Incorrect hood bumper heightAdjust the hood bumper,deck lid bumper or liftgate
bumper heightWindow Water leak through
Defective sealFill sealant
glasswindshield
Defective body flange
Correct
Water leak through
door window glassIncorrect window glass installation
Adjust position
Gap at upper window glass
Adjust position
Water leak throughDefective sealFill sealantliftgate windowDefective body flangeCorrect
DoorsDoor windowmalfunctionIncorrect window glass installation
Adjust position
Damaged or faulty regulator
Correct or replace
Water leak through
Cracked or faulty weatherstripdoor edgeReplace
Water leak from
door centerDrain hole clogged
Remove foreign objects
Inadequate waterproof film contact or damageCorrect or replace
Door hard to open
Incorrect latch or striker adjustment
Adjust
Door does notIncorrect door installationopen or closeAdjust position
completelyDefective door check strapCorrect or replace
Door check strap and hinge required grease
Apply grease
Uneven gap
Incorrect door installation
between bodyAdjust position
yoi$ noise aroundWeatherstrip not holding firmly
Adjust fit of door
Improperly installed weatherstrip or setting of
Repair or replaceweatherstrip
Improperly closed door
Improperly fit door
Improper clearance between door glass anddoor weatherstrip holder
Deformed doorAdjust
Adjust
Adjust
Repair or replace
1 TSB Revision

BODY - Troubleshooting42-7
i
/
I/
i
POWER WINDOW
CIRCUIT DIAGRAMFUSIBLELINK@
POWERWINDOWS.RELAYC-07Xm
IR-B
%,,5,,l,\/\
-__------------
v
"43m
I,:
2F7
IIIII/IIIIIII,IIIIIIIIIIIII
_____ ---._-- .----------------------------- ----. ---
E-34
POWER WINDOW
MAIN SWITCH
------1r
L-
ETACS IJNIT
16 E-32
(RH)
(LH)(RH)----v--H
POWER WINDOW MOTOR M42EBEGTSB Revision

42-8BODY - Troubleshooting
SWITCH(IG1)
‘dPOWER
WINDOWS
RELAY
J,B , "C-68&.p ,i,p ii@i/
JUMPER
CONNECTOR
r---- --.-- -_----_---_
11 ,i*;iv
_---___-_----___;i3 Xl
0
5/\
c!J
A,
I
tc-34 __pEEL!E]
c
d>
1
GNDn
-4-----;7x1;g*2\L4,j4
”. . ..--- --___--__
:I
14%l1oy2
7 I
=-
SELF-DIAGNOSISCHECK C01'6NZCTORE-21
1 mr
(RH)(LH)
DooR TWITCHTSB Revision

BODY - Troubleshooting42-9
OPERATION
0
I/
0
0
0When, with the ignition switch at the ON
position, a power-window (main or sub) switch
(“UP” side or “DOWN” side) is pressed, current
flows through sub-fusible link No. 8 and to the
power-window motor, thus causing the door
window glass to close or open.
When the “DOWN” side of the power-window
main switch at the driver’s side is pressed all the
way, it is locked at the pressed-in position, and
the power-window motor operates until the
door glass is fully opened.
When the power-window lock switch is set to
the “LOCK (ON)” position, the power-window
motor will not operate if any switch (main or sub)
other than at the driver’s side is operated.
A circuit breaker is provided in the power-window motor in order to prevent damage to the
motor as a result of excessive current.
For reference: Circuit breaker characteristics
Motor operation is restricted at high
temperatures
:
[20 - 25°C (68 - 77”F)].Current flow is cut by an initial current
occurs within 60 seconds if then left as
Iflow time of four to 40 seconds; resetis.The timer function of the ETACS permits the
power-window relay to remain ON for 30
seconds after the ignition switch is switched
OFF.If, during that period of time, the front door is
opened, the power-window relay is switched
OFF, and the power windows can no longer be
operated.
TROUBLESHOOTING HINTS1. All door windows cannot be opened or closed.
l Check sub-fusible link No. 8.
l Check the power-window relay.
l Check the power-window main switch.
2.One of the door windows cannot be opened or
closed.
(1) Neither of the power-window switches
(main or sub) operates.
l Check the power-window main switch.
lCheck the power-window motor for the
power window that does not operate.
(2) Either the power-window main switch or
sub switch does not operate.
lCheck the power-window switch for the
power window that does not operate.
3. The one-touch down switch function only does
not operate.
lReplace the power-window main switch.
4.The power window operation by ETACS control
after the ignition switch is switched OFF does
not function.
l Refer to
P.42-43.
i
1 TSB Revision