start MITSUBISHI 3000GT 1994 2.G Repair Manual

Downloaded from www.Manualslib.com manuals search engine 54-116CHASSIS ELECTRICAL - Horn
CIRCUIT DIAGRAM

c
5W-B;;-j
. ANTI-LOCKBRAKING SYSTEM*&$@lJUISE
.BUZZER*E;~CT~R~ DOOR
.DOME LIGHTsFOOT LIGHTAND IGNITION KEY
CYLINDER ILLUMINATION
LIGHT
.DOOR LIGHT AND LUGGAGECOMPARTMENT LIGHT.ELC 4A/T'ELECTRONIC CONTROL
SUSPENSION:
FOG LIGHT
FULL AUTO A/C
'HEADLIGHT
.HEATER
'MANUAL A/C
. MFI SYSTEM.POWER WINDOW.RADIO ANDTAPE PLAYER. REAR WINDOW DEFOGGER. STARTING.STOP LIGHT.SUPPLEMENTAL
RESTRAINT SYSTEM
.TAILLIGHT PARKING/SIDE MARKER LIGHTfJy;H;ICENSE PLATE
.TENSION-REDUCER
TYPE SEAT BELT
.THEFT-ALARM SYSTEM*WINDSHIELD
WIPER AND WASHER
NOTE::UP TO 1995 MODELS
R-B
(A-06X)
I
G-B
(c-02)
G-B
(c-57)
GF
CLOCK
SPRING
[
GE
;;&CATED
G-R
!(
2E=
HORNG-R
(LH)c
E
=
'TCH
G-R
l(A-47),l (A-49)
>HORN
l(A-48)"1 (A-50)
B
0 (A-47) oFa (A-49) ofiml (c-02)(c-57)=
1993 MODELS) (FROM 1994 MODELS)
El
‘J ’
HROSMOSAA
1 TSB RevisionI

Downloaded from www.Manualslib.com manuals search engine 54-164CHASSIS ELECTRICAL - Radio and Tape Player
A-6There is noise when starting the engine.
Noise type
Sounds are in pa-
rentheses ( ).
AM, FM:
Ignition noise
(Popping, Snap-
ping,Cracking,
Buzzing)
Otherelectrical
components
Static electricity
(Cracking, Crin-
kling)
Conditions
0Increasing the engine speedcausing the popping sound tospeed up, and volume de-creases.0Disappears when the ignitionswitch is turned to ACC.
-
lDisappears when the vehicle is
completely stopped.Occurs when parts or wir-
Severe when the clutch is en-ing move for some reasonlgaged.and contact metal parts of
the body.
lVarious noises are produced de-pending on the body part of thevehicle.
Due to detachment from
the body of the front hood,
bumpers, exhaust pipe
and muffler, suspension,
etc.
Causel
Mainly due to the
spark plugs.l Due to the enginenoise.
Noise may appear as
electrical components be-
come older.
Parts to be Location of
inspectedparts
or remedy(next page)
Noise con- 1
denser
Ground
cable2, 3
Repair or replace electricalcomponents.
Return parts or wiring to
their proper position.
Caution
1.Connecting a high tension cable to the noise
filter may destroy the noise filter and shouldnever be done.
2.Check that there is no external noise. Since
failure to do this may result in misdiagnosis
due to inability to identify the noise source,
this operation must be performed.3. Noise prevention should be performed by
suppressing strong sources of noise step
by step.
NOTE
1. Condenser
The condenser does not pass D.C. current, butas the number of waves increases when it
passes A.C. current, impedance (resistanceagainst A.C.) decreases, and current flow is
facilitated. A noise suppressing condenser
which takes advantage of this property is in-
serted between the power line for the noise
source and the ground. This suppresses noiseby grounding the noise component (A.C. or
pulse signal) to the body of the vehicle.
2. Coil
The coil passes D.C. current, but impedance
rises as the number of waves increases relativeto the A.C. current. A noise suppressing coil
which takes advantage of this property is in-
serted into the power line for the noise source,
and works by preventing the noise componentfrom flowing or radiating out of the line.
1 TSB Revision
Ground parts by bonding.
Cases where the problem
is not eliminated by a single
response to one area are
common, due to several
bodypartsbeing
imperfectly grounded.

Downloaded from www.Manualslib.com manuals search engine 54-208CHASSIS ELECTRICAL - Theft-alarm System
CIRCUIT DIAGRAM (CONTINUED)
LIGHT
AUTOMATIC
SHUT-OFF UNIT IGNITIONKEY
SW ITCH(ST)I#$!;'"
2B-Y0B-YyM/TA/T,
2B-Y
(c-31) v2LM/T "
t
A/T
2B-Y
,4may1j---1 1 j
L.mI.b ------____--___ - ------ - ----- -- ---- --$V??ER/
r77

OFi-,,ON/I\,/
2B-Y 2\G-B
(A-67) 2(3,J---_II ,-rn /TIM/T *A/Ta
I
G-E3
(1992 MODEL> *cl993 MODEL>
t
G-Er\3 ;
,
3LG-BG-B 3I
SE"
/\
POSITIONN SWITCHOFF-,:ONl(c-64)
6'1
LG-E
B-LY-
\A/T *
I
M/T
1
I
xm-STARTER
RELAY
l(c-56)t8E
L-2%13q 1 ‘-:liq2E
GNDV
2B
HR15MOOBAI
TSB Revision

Downloaded from www.Manualslib.com manuals search engine 54-212CHASSIS ELECTRICAL - Theft-alarm System
CIRCUIT DIAGRAM (CONTINUED)
IGNITIONSWITCH(ST)
KEYLIGHT&y+;;ERAUTOMATIC
SHUT-OFF UNIT
rA/T yM/T
1B-LI
Y-B
7
M/T y A/T/
20-Y -4
STARTER/\
RELAY,Io oft--,--------------------------- _______I
!a
III
2B-Yr2B-L
r11/T ! A/T1t--
-B
b-B 2
LUTD-CRUISE CONTROL IMFI SYSTEM
LG-B2B-k
2B-Y
EE”pSOU;&ON
'(c-64)SUPPLEMENTALl$&gJ& I NT
MFI SYSTEMSYSTEM
J/BJ;B j "7$I
v c&i--9B-----v my9----- =54=54
R-B R-B00B-L B-LB B B B
16 164 4-5-5 99AAA h *A h *4
DATA LINK CONNECTOR
(c-79)
BATTERYJm
20B-R3B-RJ(B-23) ,.l(B-24)/\
%ERER
(c-65)(c-66)(c-79) FRONT SIDE
HRlBMOlBA
1 TSB Revision

Downloaded from www.Manualslib.com manuals search engine CHASSIS ELECTRICAL - Theft-alarm System54-223
Trouble symptom
Cause
Check method
Remedy
There is no alarm when, as analarm test, the hood is openedDamaged or disconnected
wiring of hood switch input
If input checks
Repairthe harness or re-
from within the vehicle.circuit.
(P.54-220) indicate aplace the hood switch.
(The alarm is activated, however,malfunction, check by
I
by opening a door or the liftgate.)using check chartMalfunction of the hood p.54-225.
switch.
Malfunction of the ECU.
-Replace the ECU.
Engine would not start [EngineThere is a short-circuit of
starting is possible when the the starter relay activationCheck by using check
chart P.54-234.
Repair the harness.
starter relay is in the switched-off
circuit
(normally closed) condition, with
the clutch switch in the switch-off
and the ECU harness connector
disconnected.]
When, as a test of the alarm, aDamaged or disconnectedCheck by using check
door or the
liftgate is opened wiring of headlight power chart P.54-231, 232.
Repairthe harness or re-
without using the key, orthe hood
is opened from within the vehicle,supply circuit or headlightplace the diode Ds.
activation circuitReplace the headlight
the horn and the theft-alarm hornrelay or the headlight.sound but the headlights don’t
flash. (The headlights can, how-
ever, be switched. ON by usingMa
lfunction of the ECUReplace the ECU.
the passing switch.)The headlights flash during an
alarm test but the horn orthe theftDamaged or disconnectedCheck by using checkRepair the harness.
alarm horn does not sound.wiring of horn relay power
chart P.54-229,230,231.supply circuit or horn ac-Replace the horn.
tivation circuitReplace dedicated fuse
Damaged or disconnectedNo. (6) or the fusible linkwiring of the theft-alarmNo. (6).horn relay power supply
circuit or the theft-alarm
horn activation circuit.
Malfunction of the ECU.
Replace the ECU.The system is not deactivated
nhen, during an alarm test in
Damaged or disconnected
If input checks
which the alarm is intentionallywiring of door key cylinder
Repair the harness.activated, the door or
liftgate isand
liftgate unlock switch(P.54-220) indicate a
input circuitmalfunction, check byReplace the key cylinder
Jnlocked by using the key.
using check chartswitch or the
liftgate
switch.
:The system also cannot be dis-P.54-227,228.
armed.)
Malfunction of door keycyl-inder and liftgate unlock
switch.
Malfunction of the ECU
Replace the ECU.
ECU: Electronic Control Unit
NOTEIf the
lifigate unlock switch or door key cylinder unlock switch is operated roughly, or if these switches have
been installed incorrectly or switches themselves are defective the ECU may not accept the warning or alarmcancelling signal. In such case, the alarm operation will take place when the door is opened using a key.
[When the door key cylinder switch has been shorted, however, if the ignition switch is turned ON, the ECU
judges the detection-switch as faulty and thereafter, it will prevent setting of (warning) alarm until the shorting
is corrected.]
If the
liftgate is opened using a key and is left opened when the door key cylinder switch system has a trouble
(wiring harness damage, open circuit, etc.), the ECU judges it as the
liftgate holding mode and does not producealarm even when the door is opened.
TSB Revision

Downloaded from www.Manualslib.com manuals search engine 54-234CHASSIS ELECTRICAL - Theft-alarm System
15. STARTER RELAY ACTIVATION CIRCUIT
lgnlllonKey reminderBattery
switch (STIswtch
B-23l-
Starter motor
Lo03 52“:
&Y
. ..--N. OYa.’ ‘pa3
PI/l i M/T
Theft-
alarm
starter
relay
IC-56
A1
ECUm
PANWNEUTNLl. PONlTlON WITCH:1(prom 1993 NODEL)
:2cm2 N@nEL>216Fcas
Description of operationThe ECU transistor is turned ON if the vehicle door etc. are opened without use of the key. This turns
OFF the starter relay and power ceases to be supplied to the starter magnet switch.
Checking the starter relay activation circuit (Disconnect the connector of the ECU, depress fully the clutch
pedal and activate the starter relay)
SW
1
t
2Check object
Starter relay terminal voltage
(2-Ground)
Startermotor terminal
(1 -Ground)I
Normal
condition
12v
12v
:
Malfunc-
tion
ov
ov
Cause
Malfunction of the starter
relay
Harness damaged or dis-
connected:
Remedy
Check the starter relay
Repair the harness
(Starter motor connector B-24: Separation)
3Continuity between “B-24” 0
Q-clDamaged magnet switchReplace magnet switch
connector and ground
( TSB Revision

Downloaded from www.Manualslib.com manuals search engine ALPHABETICAL INDEX5
STARTER MOTOR...................................16-23-11STARTING SYSTEM.................................16-19-11
STEERINGAngle Check.........................................37A-6-l
ANGULAR VELOCITY SENSOR.....................338-18-l
GEAR BOX, Power.................................37A-18-l
LINKAGE SEALS, Maintenance........................00-52-I
SHAFT...........................................37A-14-I
STEERING WHEEL.................................37A-14-l
Centering..........................................37A-7-l
Free Play Check
....................................37A-6-l
Return to Center Check..............................37A-9-lSTOP LIGHTHigh Mounted....................................54-107-11SWITCH..........................................338-19-ISTRUT..............................................33A-7-lSUN ROOF...........................................42-56-l
SUSPENSION
RearcAWD>...........................................34-26-l............................................34-7-lSWITCHAccelerator......................................Refer to AAir Conditioning Engine Coolant Temperature........Refer to AClosed Throttle Position...........................Refer to CColumn..........................................54-112-11ECS.............................................33B-18-lElectrical Load...............................13A-127,238-i
Fog Light.........................................54-l 09-11Hazard..........................................54-110-11Horn.............................................54-118-11Ignition............................................54-6-11Ignition-lG........................................Refer to I
i
Ignition-ST.......................................Refer to IMuffler Mode Changeover.........................Refer to MParking Brake, Check.................................36-4-lPark/Neutral Position .......................Refer to PPop-up..........................................54-l 09-11Position Detection.................................338-19-I
Power Steering..................................Refer to PRear Window Defogger............................54-203-11Stop Light........................................338-l 9-lT
TAPE PLAYER
ANTI-THEFT SYSTEM..........................THEFT-ALARM SYSTEM.........................THERMOSTAT..................................THROTTLE BODY..............................THROTTLE BODY (Throttle Valve Area), Cleaning...THROTTLE POSITION SENSOR..................Adjustment...................................On-vehicle Inspection..........................TIE ROD END BALL JOINT.......................TIMING BELT...................................Maintenance.................................TIRE..........................................
TRAILING ARMcAWD>............................................................................TRANSAXLE.........................................................:................
i:
Manual, Maintenance..........................CONTROL.......................................
.54-156-11.54-205-11. . . . .14-9-I13A-288-f13A-57-l338-l 9-l13A-57-l13A-98,221 -I. .37A-6-I. . . . .11-31-I. . . . .00-46-I. . . . . .31-4-l
34-32-l. .
34-11-I
.23-64-l22-19, 23-l
. . . . . .22-9-l.00-49-I. .
00-48-l
.23-55-l
..............................................MOUNTING........................OIL COOLER.......................
OIL COOLER HOSES...............OIL COOLER TUBES................OIL SEAL ...................TRANSFER ..................TRANSMISSION
FLUID.............................
OILReplacement..........................cFWD>..........................
TRIM...............................Door..............................TURBOCHARGER...................................................BYPASS VALVE, Check..............SUPERCHARGING PRESSURE......WASTE GATE SOLENOIDCheck............................On-vehicle Inspection...............
U
UPPER ARM . . . . .............................34-29-lcFWD> . . . . . .
.............................34-9-l
................22-17-l.................22-6-l.................32-5-l................23-62-l................23-62-l................23-62-l................22-16-l................22-22-l
. . . . . . . . . . . . . . .23-47-l
................22-15-l.................22-4-l...............52A-11-I................42-42-l
................15-20-I................15-23-l.................15-8-l.................15-6-l
.................15-8-l.........13A-169,271-l
V
VACUUM TANK ...............................21-18-IVALVE RELAY CABS>, Check..........................35-83-l
VAPOR LINE.........................................13F-8-I
VARIABLE INDUCTION CONTROL
MOTOR (DC Motor)...........................13A-174,276-l
SYSTEM, Check......................................15-5-lVEHICLE SPEED SENSORECS.............................................338-l 8-l
On-vehicle Inspection................13A-117, 119,231,233-lVENTILATION........................................55-3-l
SYSTEM, Positive Crankcase..........................17-56-lVALVE, Positive Crankcase............................17-56-lVENTILATORS (Air Inlet and Air Outlet)..................55-52-l
(Instrument Panel)...................................55-50-IVOLUME AIR FLOW SENSOR
Engine and Emission Control.........................17-65-lOn-vehicle Inspection..........................13A-85,212-l
W
..........................................
WASHERRear . . . . . . . . . .
Windshield . . . . . .
WATERPROOF FILM, DoorWATER PUMP . . . . .
WEATHERSTRIP, Drip LineWHEEL . . . .
ALIGNMENT
. . .51-28-I.51-25-l. . .42-42-l. . 14-11-l
. . . . .42-63-l. . .31-4-lFront .
.._.............................Rear . .._.......................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BEARING
. . . . .33A-6-l
. . . . .34-25-l. . . . . .34-5-lAdjustment . . . . . . . . . .. .
.33A-6-t
End Play Check
cFWD>. . . . . . . .27-3-L 34-6-lWHEEL SPEED SENSOR
. .35-113-l