check engine light MITSUBISHI 3000GT 1993 2.G Repair Manual

Downloaded from www.Manualslib.com manuals search engine 54-232CHASSIS ELECTRICAL - Theft-alarm System
14. HEADLIGHT ACTIVATION CIRCUIT

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Description of operationThe ECU transistor is turned ON if the vehicles
door, etc. are opened without use of the key. This
energizes the headlight relay to active the headlight.Checking the headlight activation circuit (Disconnect
the connector of the ECU, then short-circuit terminalconnector 2, and activate the headlight relay.)
TSB Revision

Downloaded from www.Manualslib.com manuals search engine CHASSIS ELECTRICAL - Theft-alarm Svstem54-233
1
2
3
cFronSW
1,
id
2
3
n
i
I1993
models>
Check object
NormalMal-
condi-function
tionHeadlight relay terminal voltage
(4-Ground)12v
OV
Headlightterminal12vOV
(3-Ground)voltageHeadlight
termi- Column switch: OV
nalvoltage Low
(1 -Ground)Column switch:12vHiHeadlight
termi- Column switch:12v
nalvoltage Low
(2-Ground)Column switch: OV
Hi
The
head-
light
isn’t
turned
on.1994
models>
Check object
NormalMal-
condi-function
tionHeadlight relay terminal voltage
(CGround)12vov
Headlightterminal
voltage12vov
(2-Ground)Headlight (HI)
terminal voltage
(1 -Ground)Headlight (LO)
terminal voltage
(2-Ground)
-r
/
Column switch:12v
LowColumn switch: OV
HiColumn switch: OV
LowThe
head-
light
isn’t
turned
on.Column switch: OV
HiCauseMalfunction of the
headlight relay
Harness damaged or
disconnectedMalfunction of the
headlight.
Harnessdamaged or discon-
nected. Malfunction of
column switch.
CauseRemedyMalfunction of the
headlight relay
Harness damaged or
disconnectedMalfunction of the
headlight.
Harnessdamaged or discon-
nected. Malfunction of
column switch.RemedyCheck the headlight
relay(Refer to
P.54-108.)
Repair the harness
Replace the headlight
orcolumnswitch.
Repair the harness.Check the headlight
relay(Refer to
P.54-108.)
Repair the harness
Replace the headlight
orcolumnswitch.
Repair the harness.
TSB Revision

Downloaded from www.Manualslib.com manuals search engine ALPHABETICAL INDEX1
A
iiABSPOWER RELAY, Check . . . . . . . . . . . . . . . . . . . . , . . .
35-82-lRELAY.............................................35-110-1SIGNAL, On-vehicle Inspection.................13A-176,277-iACCELERATOR
CABLE..............................................
17-4-l
SWITCH
...............................23-51-l
........................17-4-l
ACTIVE AERO SYSTEM, Check.........................
51-7-l
ACTIVE EXHAUST
CONTROL UNIT, On-vehicle Inspection..........13A-173,274-lSYSTEM............................................15-40-l
AERO PARTS........................................51-19-lAIR BAG..........................................520-74-lMODULE......................................528-82, 87-lAIR CLEANER.........................................15-9-l
ELEMENT, Maintenance..............................00-45-lAIR CONDITIONING...................................55-3-l
.....................................55-54-l
.......................................55-6-lCOMPRESSOR.....................................55-79-l COMPRESSOR DRIVE BELT, Adjustment...............
55-18-lCONTROL PANEL...................................55-73-lCONTROL UNIT.....................................55-73-lENGINE COOLANT TEMPERATURE SWITCHEngine Cooling.....................................14-13-l.....................................55-79-l......................................55:53-lPOWER RELAY.....................................55-29-lPOWER TRANSISTOR...............................55-74-lSWITCH............................................55-33 -1Emission Control....................................17-65-lOn-vehicle inspection.........................13A-123,236-lANTENNAMotor............................................54-188-11FEEDER CABLE...................................54-188-11ANTI-LOCK BRAKE SYSTEM....................Refer to ABS
ASSIST LINK ..................................34-35-iAUTOMATIC TRANSAXLE.............................23-64-l
Maintenance
.........................................00-49-IAXLE
Rear
............................................27-6-l............................................27-2-l
HUB, Rear -&VD>
....................................
27-4-lSHAFT ......................................27-16-l
B
BALL JOINT SEALS, Maintenance. . . .
BAROMETRIC PRESSURE SENSOR
On-vehicle Inspection . . . . . . . . . . . .BASIC IDLE SPEED, Adjustment . . . . . .
BATTERY . . . . . . . . . . . . . . . . . . . . . . . . . .
Discharged, Remedy . . . . . . . . . . . .
BELT LOCK CONTROLLER . . . . . . . . .
BLOWER. . . . . . . . . . . . . . . . . .
BOOSTER, Clutch . . . . . . . .BOOST METER, On-vehicle InspectionBRAKE
Parking. . . . . . . . . . ..*.............
BOOSTER . . . . . . . . . . . . . . . .
Operating Check . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . .00-52-l
..........13A-91,217-l..............
13A-55-l................64-3-11................35-82-l............55-32,74-t................
55-35-l.................21-6-l.........13A-171,273-l
.................36-8-l................35-87-l................35-64-l
DISC..........................................35-93,103-l
Front, Check.......................................35-70-IRear, Check........................................35-73-lFLUID LEVEL SENSOR, Check........................35-64-l
HOSES, Maintenance.................................00-52-I
LINE................................................35-91-lLINING.............................................35-74-lPAD
Disc, Front.........................................
35-66-l
Disc, Rear.............~..................>..........35-71-lPEDAL.............................................35-84-l
Check and Adjustment......................
:........35-63-lBUMPERFront...............................................51-8-lRear...............................................51-13-l
CAMSHAFT
OIL SEALS..........................................
11-21-lPOSITION SENSOR, On-vehicle Inspection......13A-103,225-lCATALYTIC CONVERTER..............................17-71-l.......................................15-30-l
.
..........................................
15-33-lCD AUTO CHANGER................................54-191-11CENTER PILLAR GLASS..............................42-33-l
CENTRAL DOOR LOCKING SYSTEM...................42-49-lCHARGE AIR COOLER................................15-11-l
CHARGING SYSTEM..................................l.6-2-11CIGARETTE LIGHTER..............................54-123-k
CLOCK SPRING, SRS..............................528-74-I
CLOSED THROTTLE POSITION SWITCH
Adjustment.......................................
13A-57-lOn-vehicle Inspection.........................13A-101,223-lCLUTCH
BOOSTER OPERATING, Check .................21-6-lCONTROL..........................................21-l O-ICOVER.............................................21-20-lDISC...............................................21-20-I
MASTER CYLINDER.................................21-14-lPEDAL..............................................21-8-lCheck and Adjustment................................21-5-l
RELEASE CYLINDER................................21-16-IVACUUM LINE cAWD>...............................21-18-I
COLUMN SWITCH..................................54-112-11COMBINATION GAUGES.............................54-33-kCOMBINATION LIGHT...............................54-106-11COMBINATION METERS.............................54-31-11COMPRESSOR CLUTCH RELAY,On-vehicle Inspection...........................13A-123,236-lCONDENSER.....................................55-79-l.....................................55-79-l CONTROLLER, Belt Lock..............................55-32-lCONTROL UNIT
Active Exhaust, On-vehicle Inspection...........13A-173,274-lECS.............................................338-20-I
Electronic CABS>..................................35-119-l
CONTROL VALVE.....................................37B-9-l
Fuel Tank Pressure..................................13F-6-IInspection..
........................................17-65-l
CRANKSHAFT
FRONT OIL SEAL....................................
11-25-lPOSITION SENSOR, On-vehicle Inspection......13A-107,227-l
REAR QIL SEAL.....................................11-26-l

Downloaded from www.Manualslib.com manuals search engine ALPHABETICAL INDEX
CROSSMEMBER......................................32-8-lCRUISE CONTROL......................................17-t
CABLE, Check and Adjustment........................17-31-l
SYSTEM............................................17-38-i
Check.............................................
17-32-l
CURB IDLE SPEED, Check............................11-11-l
CYLINDER HEAD GASKET............................11-28-l
D
DAMPER CONTROL MOTOR..........................55-75-lDAMPING FORCE CHANGEOVER ACTUATOR........338-19-I
DASHPOT, Check And Adjustment......................11-l 3-lDEFOGGER
Rear Window.....................................54-192-11
RELAY............................................54-204-11
SWITCH, Rear Window.............................54-203-11
DIFFERENTIALCase, Limited Slip cAWD>...........................27-40-ILimited Slip, Check cAWD>..........................27-15-tCARRIER ....................................27-25-l
DISC BRAKEFront..............................................35-93-lRear..............................................35-103-I
PADS, Maintenance..................................00-52-I
DOOR...............................................42-41-l
Adjustment.........................................42-12-lGLASS.............................................42-43-l
HANDLE............................................42-47-l
INSIDE HANDLE, Play Check..........................42-16-l
LATCH..............................................42-47-lMIRROR............................................51-31-l
REGULATOR........................................42-43-l
TRIM...............................................42-42- 1WATERPROOF FILM.................................42-42-lWINDOW GLASS, Adjustment.........................42-12-l
DRIP LINE WEATHERSTRIP...........................42-63-lDRIVE BELTCompressor, Adjustment.............................55-18-l
Maintenance.......................................00-47-I
Tension, Adjustment..................................11-7-l
Tension, Check.....................................37A-9-l
DRIVE SHAFTFront..............................................26-12-lRear...............................................27-19- I
BOOTS, Maintenance.................................00-52-l
OIL SEALS, Replacement
.......................23-53-l
........................................22-15-l
.........................................22-5-l
E
ECSOn-vehicle Inspection..............................,338-l 1 -I
CONTROL UNIT...................................338-20-IINDICATOR LIGHT.................................338-19-ISWITCH..........................................338-18-I
EGR
SOLENOID..........................................17-70-l
On-vehicle Inspection.........................13A-164,269-l
SYSTEM, Inspection..................................17-67-l
TEMPERATURE SENSOR............................17-68-l
On-vehicle Inspection.........................13A-i35,246-I
VALVE..............................................17-68-l
VALVE CONTROL VACUUM, Check....................17-67-l
ELECTRICAL LOAD SWITCH, On-vehicle Inspection 13A-127,238-l
ELECTRONIC CONTROL UNIT
CABS>.................35-119-l
ENGINE.............................................11-18-l
CONTROL...........................................17-5-lCOOLANT
Maintenance.......................................00-51 -IReplacement........................................14-4-l
COOLANT TEMPERATURE GAUGE UNIT..............14-13-l
COOLANT TEMPERATURE SENSOR
Engine and Emission Control.........................17-65-l
Engine Cooling.....................................14-13-IOn-vehicle Inspection..........................13A-93,219-lHOOD..............................................42-18-l
MOUNTING..........................................32-3-lOIL, Maintenance....................................00-47-l
OIL COOLER........................................11-36-lOIL FILTER, Maintenance.............................00-48-l
ROLL STOPPER......................................32-6-l
SPEED ADJUSTING SCREW, Adjustment.............
13A-59-l
EVAPORATIVE EMISSION
CANISTER..........................................
17-65-l
CONTROL SYSTEM.................................17-57-l
Check for Leaks and Clogging........................00-46-l
PURGE SOLENOID..................................17-64-lOn-vehicle Inspection.........................13A-162,268-lEVAPORATOR........................................55-37-lEXHAUSTGAS RECIRCULATION (EGR) SYSTEM................17-66-l
MANIFOLD
.......................................15-26-l
...........................................15-28-l
PIPE
.......................................15-30-l
...........................................15-33-l
SYSTEM
Active.............................................15-40-l
Maintenance.......................................00-60-l
F
FAN MOTORCondenser
.....................................55-79-l......................................55-46-l
RELAY, On-vehicle Inspection...................13A-129.240-t
FEEDER CABLE, Antenna...........................54-188-11FENDER.............................................42-24-l
FILLER TUBE CAP, Fuel Tank, Check....................17-65-lFLOOR CONSOLE..................................52A-1 O-I
FLOOR PAN, Check...................................42-16-l
FOG LIGHT........................................54-105-11
SWITCH..........................................54-109-11FRONT IMPACT SENSORS..........................526-68-l
FUELFILLER DOOR, Adjustment............................42-12-l
FILTER............................................13F-10-I
GAUGE UNIT........................................13F-6-IHOSES, Maintenance.................................00-45-l
LINE................................................13F-8-I
PRESSURE SOLENOID, On-vehicle Inspection...13A-166,270-l
PRESSURE TEST, On-vehicle Inspection........13A-180,279-lPUMP..............................................13F-6-I
On-vehicle Inspection..........................13A-72,200-l
PUMP CIRCUIT RESISTOR, On-vehicle Inspection .
13A-84,211-lPUMP OPERATION CHECK, On-vehicle Inspection 13A-179,279-lPUMP RELAY N0.2, On-vehicle Inspection........13A-84,211-l
SYSTEM, Maintenance...............................00-45-I
FUEL TANK..........................................13F-3-IFILLER DOOR.......................................42-23-lFILLER TUBE CAP, Check............................17-65-l
PRESSURE CONTROL VALVE........................
13F-6-IInspection..........................................17-65-l
FULL AUTO AIR CONDITIONING.......................55-54-l

Downloaded from www.Manualslib.com manuals search engine ALPHABETICAL INDEX3FUNCTION, Check (4WS) .
. . . . . . . . . . . .37B-5-l
GARNISHES . . . . . . . . .
GENERATOR . .
GLASSCenter Pillar .
Door.....................
Door Window, Adjustment
Liftgate . .Quarter Window.Window. . . . . . . . . . . . . . . .G SENSOR.. . . . . .
. . .
G
.........................51-15-l........................16-12-11
.....................42-33-l.....................42-43-l......42-12-l......42-38-l......42-34-l......42-26-l....338-l 8-l.....35-117-l
H
HAZARD SWITCH..................................54-110-11
HEADLIGHT........................................54-103-11
HEADLINING.......................................52A-16-l
HEATED OXYGEN SENSOROn-vehicle Inspection.........................13A-137,247-l
HEATER..............................................55-3-l
HEATER CONTROL...................................55-30-I
HEATER UNIT........................................55-34-l
HIGH MOUNTED STOP LIGHT.......................54-107-11
HOOD...............................................42-18-lAdjustment.........................................42-11 -I
HORN.............................................54-115-11RELAY..
..........................................54-118-11
SWITCH..........................................54-118-11
HYDRAULIC UNIT CABS>.............................35-110-I
Check
.............................................35-76-lI
IDLE AIR CONTROL MOTOR (Stepper Motor Type)
On-vehicle Inspection.........................13A-153,263-l
IDLE MIXTURE, Check................................11-12-l
IDLE SPEED
Basic, Adjustment.................................13A-55-lCurb,Check........................................11-11-l
IGNITION
CABLES, Maintenance................................00-46-l
COIL, On-vehicle Inspection....................
13A-158,264-l
POWER TRANSISTOR, On-vehicle Inspection....13&158,264-l
SWITCH............................................54-6-11
SWITCH-IG, On-vehicle Inspection...............13A-65, 193-l
SWITCH-ST, On-vehicle Inspection
......................................13A-113,230-l
......................................13A-112,229-l
SYSTEM...........................................16-45-11
TIMING,‘Check.......................................11-9-l
IMPACT SENSORS, Front............................528-68-I
INDUCTION CONTROL VALVE POSITION SENSOROn-vehicle Inspection.........................13A-133,242-l
INJECTOR........................................13A-286-l
On-vehicle Inspection.........................
13A-144,257-l
INSTRUMENT PANEL.................................52A-5-lINTAKE
AIR TEMPERATURE SENSOR........................17-65-l
On-vehicle Inspection..........................13A-88,215-l
CHARGE PRESSURE CONTROL SYSTEM, Check.......15-7-l
INTAKE MANIFOLD...................................15-17-l
PLENUM
.......................................15-l 3-l
. . . . . . . . . . . . 15-l 5-l
K
KEY INTERLOCK MECHANISM....KEYLESS ENTRY SYSTEM........KICKDOWN SERVO...............KNOCK SENSOR.................On-vehicle Inspection............KNUCKLE........................
.................23-51-l.................42-52-l.................23-47-l..............13A-289-l..........
13A-125,237-l..................26-6-l
L
LASH ADJUSTERSCheck.............................................11-15-lReplacement.......................................11-l 7-l
LATCH, Door.........................................42-47-lLEFT MEMBER........................................32-8-l
LEVER, Shift............................................22-16-l
cFWD>.............................................22-8-lLICENSE PLATE LIGHT.............................54-106-11
LIFTGATE............................................42-20-I
Adjustment.........................................42-11-l
GLASS.............................................42-38-lLIGHT
Indicator, ECS....................................338-19-IFog.............................................54-105-11Front Combination.................................54-106-11High Mounted Stop................................54-107-11License Plate.....................................54-106-11
Rear Combination.................................54-106-11Switch, Stop......................................33B-19-l
LIGHTING SYSTEM..................................54-35-11LIMITED SLIP DIFFERENTIALCheck cAWD>......................................27-l 5-l
Rear Axle, Oil Change, Maintenance...................00-52-I
CASE .......................................27-40-I
LOOSE PANEL.......................................42-25-l
LOWER ARM
Front Suspension.................................33A-10-I
Rear Suspension...........................................( 34-29-l
............................................34-9-l
M
MAIN MUFFLER
. . . . . . .. . . . . . . . . . . .
MANUAL AIR CONDITIONING .
MANUAL TRANSAXLE . . . . . . . . . . . .
cFWD> . . . . . . . . . . . .Maintenance. . . . .
MASTER CYLINDER . . .
Clutch . . . . . . . .
MIRROR, Door..
_. .MIXTURE CONTROL (MFI) SystemMOTOR ANTENNA.. . . .
MOTOR RELAY
CABS>, Check .MOULDINGS . . . . . . . . . . . . .MUFFLER, Main
.....................
.......
...............................................................
. . . . . . . . . . . . . :. . . . . . . .._.._............._._._.MUFFLER MODE CHANGEOVER SWITCHOn-vehicle Inspection . . . . . . . . _. . . . .
..........15-30-I..........
15-33-l...........55-6-l..........
22-13-l...........22-2-l..........00-48-I..........35-87-l..........21-14-l..........51-31-l..........17-70-I........54-188-11..........35-83-l..........51-15-l...........
15-30-I..........15-33-l...
13A-131,241-l

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