wiring MITSUBISHI 3000GT 1991 Owner's Manual

42-18ENGINE HOODBODY
- Engine Hood
M42HAAV
REMOVAL AND INSTALLATION5Nm
9Nm’7 ft.lbs.12 Nm\ /8 ft.lbs.
16FO12716FO261
16A0755
1. Hood latch2. Hood lock release handle3. Hood lock release cable4. Hood weatherstrip (Front)
5. Hood weatherstrip (Rear)
l a6. Bumper A (Body side)I)*7. Bumper A (Hood side)l * 8. BumperB
9. Bumper
10. Hood side weatherstrip (LH)11. Hood side weatherstrip (RH)12. Heat protector panel
13. Heat protector
14. Hood garnish assembly
15. Hood switch (Vehicles with theft-alarm
sys-tern)16. Engine room inspection light
17. Inspection light switchHood hinge removal steps
Washer tube (Refer to GROUP 51 -Wind-shield Wiper and Washer.)
18. inspection light wiring harness19. Hood gas spring20. Hood21. Hood hinge
Caution1.Never try to disassemble the hood gas spring or burn
it.
2.Always bore a hole in the gas spring to release the
interior gas before the spring is discarded.TSB Revision

42-20BODY- Liftgate
LIFTGATEM420AAU
REMOVAL AND INSTALLATION8lSFO262
12 Nm8 ft.lbs.
%a12 Nm
18FOO87
l + 1. Bumper
2. Liftgate damper (upper)
3. Liftgate damper (lower)
1
4, ft.‘bs.1’1 ‘47 ftlbs.18FO138Liftgate and
liftgate hinge removal steps
Washer tube (Refer to GROUP 51 -Wind-
.
. .shield Wtper and Washer.). .._Liftgate gas spring and liftgate opening weatnerstrllp
removal steps
Liftgate trimRear side trim>
(Refer to GROUP52A-Trims.)
4. Liftgate gas spring
5. Liftgate opening weatherstrip
Lrttgate trrmi$ftft;e$d;nm (LH) !!-!-~~~G$)upi
4. Liftgate gas spring
6. Connection for liftgate wiring harness7. LiftgateHeadlining
(Refer to GROUP 52A- Headlining.)8. Liftgate hinge
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42-40BODY - Door Assembly
DOOR ASSEMBLYREMOVAL AND INSTALLATION~M42MAEC
46 Nm33 ftibs.\12 Nm8 ftlbs.
22Nm
16 ft.lbs.18FO208Door assembly removal steps
1. Connection for door wiring harness
connector
2. Spring pin
3. Door assembly
4. Upper hinge
5. Lower hinge
Door check strap removal steps
Door trim (Refer to
P.42-41.)Waterproof film (Refer to P.42-41.)Striker removal steps
7. Striker
8. Striker shim
Door switch removal steps
9. Door switch cap
10. Door switch
2. Spring pin
** 6. Door check strap
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BODY - Power Window42-43
/;i
$
Diagnosis connector-Gr&nd
ETkCS ‘6R”38
Nith voltmeter-.___
1Withmulti-use tester
POWER WINDOWM42MHAH
TROUBLESHOOTING GUIDE
INPUT CHECK
Using the multi-use tester or voltmeter, check whether or not
the input signals from each switch are being input to the
ETACS unit.
(I), Connect the multi-use tester to the diagnosis check
connector located at the right side of the junction block or
connect the voltmeter between the ETACS terminal and
the ground terminal.
(2) Check if the buzzer of the multi-use tester sounds or the
needle of the voltmeter moves when each switch noted
below is operated.
If the buzzer sounds or the needle moves, the input signals
are being input to the ETACS unit, so that switch can be
considered to be functioning normally. If not, the switch or
switch input circuit is faulty. Check the switch and the
switch input circuit.
l Ignition switch
l Door switch
TROUBLESHOOTING QUICK-REFERENCE TABLE
For information concerning the locations of electrical components, refer to
P.42-51.
ProblemThe power windows do not operateNhen
the ignition switch is at the“ON” position.Probable cause
Damaged or discon-netted wiring of the
ignition switch input
circuitCheck method
If a malfunction is in-dicated as a result of
checking the input
signals, check by fol-
lowing individual part
and the circuit check
No. 2 procedures(P.42-46).Remedy
Repair the wiring
harness.
Damaged or discon-Check by following
in-Repair the wiring har-
netted wiring of thedividual part and theness, or replace thepower window relaycircuit check No. 3power window relay.
activation circuitprocedures (P.42-47).
Malfunction of the
-Replace the electron-electronic control unitic control unit.
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42-44
BODY - Power Window
Problem
Probable causeCheck method
Remedy
The power windows can be opened
and closed immediately after theDamaged or discon-If a malfunction is
in-netted wiring of thedicated as a result ofRepair the wiring har-ignition switch is switched “OFF”, butfront door switch
checking the inputness. or replace the
the power window operation doesfront door switch.
not stop if a front door is openedinput circuit
signals, check by
follow-within 30 seconds.Malfunction of theing individual part and
the circuit check No. 4
front door switch
procedures
(P.42-49).Malfunction of the
-electronic control unitReplace the electron-ic control unit.
The opening and closing operations
of the power windows are possible
after the timer operation time has
elapsed when the ignition switch
is set to the “OFF” position.Short-circuit of the
power window relay
activation circuit
Malfunction of the
front door switchCheck by following
in-dividual part and cir-cuit check No. 3
pro-cedures (P.42-47).Repair the wiring
har-ness, or replace the
power window relay.
Malfunction of the
electronic control unit
-Replace the electron-ic control unit.
NOTE“ECU” (electronic control unit) indicates the ETACS unit.
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BODY - Power Window
L/CHECKING INDIVIDUAL PART AND CIRCUIT
1. ETACS POWER-SUPPLY AND GROUND CIRCUITSBattery
Junction block
Jumper connector
ETACS unrt(ECU)
*I : Vehicles without theft-alarm system
“2: Vehicles with theft-alarm system
T16FO314Description of operation
The battery supplies a stabilized 5V power supply to the electronic control unit, via the constant-voltage circuit
and terminal (51) directly connected to the battery. If there is an abnormal condition of the power-supply
circuit, other ETACS functions also will not operate.
Electronic control unit terminal voltage (Connection status of electronic control unit connector)
ECU terminal No. SignalConditionTerminal
voltage
51Electronic control unit power supplyAt all timesSystem
voltage
Checking the ground circuit (Disconnect the connector and check the wiring harness side.)
/I1I1ITerminal No.Connected to/measured part
MeasurementTester
connectionCheck conditionsStandard
57”’Electronic control unit groundResistance57*‘-groundAt all timesContinuity59”?59*‘-ground
NOTE
“I : Vehicles without theft-alarm system
“2: Vehicles with theft-alarm system
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I

42-46BODY - Power Window
2.IGNITION SWITCH INPUT CIRCUITS
BatteryFusible link
20B-Y. ;I II II I ] II ,;rLL30A,l ‘\m 1 2 34 5 6
25
3:6Pz
z03I
=7\-7
Junction block@ (Multi-purpose fuse)
1
ETACS unit(ECU)
4,
m“1 : Vehicles without theft-alarm system“2: Vehicles with theft-alarm system16FO312Description of operation
A condition for operation of this system is the sending of HIGH-level signals to the electronic control unit
when the ignition switch is switched to the “ON” position.
Electronic control unit terminal voltage (Disconnect the connector of the electronic control unit and
check the wiring harness side.)
ECU terminal No. Signal
52Ignition switch: “ON”ConditionIgnition switchOFF
ON
Standardov
System
voltageChecking the individual part
Ignition switch: Refer to GROUP 54
- Ignition Switch.
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42-48BODY - Power Window
Description of operation
When the ignition switch is switched to the “ON” position, and also for a period of 30 seconds after the
ignition switch is switched to the “OFF” position, the transistor of the electronic control unit is switched ON,
and battery voltage is supplied from the battery (through fusible link No. 9) to the power window relay.
In addition, voltage is supplied (through fusible link No. 9) to power window switch and motor as a result of
the switch-ON of the power window relay.
NOTETurn the ignition switch from ON to OFF, and power will be supplied to the power window relay for 30
seconds. However, power supply will be stopped if the door is opened during this period.
Electronic control unit terminal voltage (Disconnect the connector of the electronic control unit and
check the wiring harness side.)
ECU terminal No. Signal
ConditionTerminalvoltage
5*I
7*2Power window relay signalAt all timesSystem
voltageP
NOTE*I : Vehicles without theft-alarm system
“2: Vehicles with theft-alarm systemChecking the individual part
Power window relay: Refer to
P.42-51.
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BODY - Power Window
Checking the driver door switch circuit (Disconnect the connector of the electronic control unit’and
check the wiring harness side.)
ECU Terminal Connected to/
No.measured partMeasurement ~~~~e~rionCheck conditionsStandard
14”’
16”’
lo**Driver door switch
Passenger door
switch
Driver door switch
and passenger
door switchResistance
Resistance
Resistance14*‘-ground Driver door16*‘-ground Passenger
door1 O*‘-groundDriver doorand/or
passenger
doorClosedNo continuity
OpenContinuity
ClosedNo continuity
OpenContinuity
ClosedNo continuity
Driver door
andpassenger
doorOpenContinuity
NOTE“I : Vehicles without theft-alarm system
“2: Vehicles with theft-alarm system
Check the individual part
Door switch: Refer to
P.42-41.
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42-56BODY - Central Door Locking System
CHECKING INDIVIDUAL PART AND CIRCUIT (IGNITION KEY REMINDER SYSTEM)
1. ETACS POWER-SUPPLY AND GROUND CIRCUITS
L-
Batterv
$1,\ .
\I \/ \I
‘/1,\/2-“1
m+,2T.,l\ ,.c.i -
151
Junction block (Multi-purpose fuse)
Jumper connector
ETACS unit(ECU)
“I : Vehicles without theft-alarm system
“2: Vehicles with theft-alarm systemz1116FO314Description of operation
The battery supplies a stabilized 5V power supply to the electronic control unit, via the constant-voltage circuit
and terminal (51) directly connected to the battery. If there is an abnormal condition of the power-supply
circuit, other ETACS functions also will not operate.
Electronic control unit terminal voltage (Connection status of electronic control unit connector)
ECU terminal No. Signal
StatusTerminalvoltage
I
51Electronic control unit power supply
At all timesSystem
voltage
IChecking the ground circuit (Disconnect the connector and check the wiring harness side.)
IIII1Terminal No.Connected to/measured part
MeasurementTesterconnectionCheck conditionsStandard57”’
Electronic control unit ground
Resistance57*‘-groundAt all timesContinuity
59”)59*2-ground
NOTE
“I : Vehicles without theft-alarm system.“2: Vehicles with theft-alarm system
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