lights MITSUBISHI 3000GT 1992 2.G Owner's Guide

Downloaded from www.Manualslib.com manuals search engine 54-78CHASSIS ELECTRICAL - Lighting System
OPERATION light>l
Battery voltage is always applied to the dome light. When the dome light switch is turned to “ON”,
the dome light will remain lit. After either door is opened if the dome light switch is at “DOOR” position,the dome light will come on.
lWith the dome light turned on (with the ignition switch in the OFF position and with the dome light
switch in the DOOR position), close all doors, and the timer circuit in the ETACS unit will be activatedto gradually vary the voltage for approx. 6 seconds owing to the duty control, and the voltage will
be output to transistor Tr. Since the voltage applied to the dome light gradually decreases, the dome
light will be dimmed.lIf the ignition switch is turned to “ON” while the dome light is lit (while the timer is activated), the
timer circuit will be opened to turn “OFF” transistor Tr. This will immediately turn off the dome light
without dimming. light>-lBattery voltage is always applied to the foot lights and ignition key illumination light.
With the ignition switch in the OFF position, open any door, and all lights will come on.
l
With all lights turned on (with the ignition switch in the OFF position), close all doors, and the timercircuit inside the ETACS unit will operate in the same manner as the dome light to dim all lights.
When the ignition switch is placed in the ON position with all lights turned on (with the timer in operation),the same operation as the dome light will take place.
TROUBLESHOOTING HINTS
Phenomenon
Dome light does not come on
when
a door is opened with the
dome light switch in the DOOR
position.
Check the door switch input signal.
Check the door switch. (Refer to GROUP 42 -
The foot lights and ignitionl
key cylinder illumination
Check the dome light switch.
light illuminate.
lCheck the dome light bulb.
Dome light, foot lights and ignition key illumination light go out
l
at once when doors are closed.Check the door switch input signal.(Refer to P.54-80.)Even if ignition switch is turned on while lights are being
l
dimmed,lightsdo notout at the same time.
Check the ignition switch input signal.
go
(Refer toP.54-80.)
COMPONENT LOCATION
Data ‘link
connect&
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Downloaded from www.Manualslib.com manuals search engine 1. When operation is normal
l
When the ignition switch is switched to the
ON position, battery voltage is applied (viathe multipurpose fuse (11) and hazard
switch) to the turn-signal and hazard flasher
unit.l
When the turn-signal switch is switched to
the LH position,
Trl (within the flasher unit)
is switched ON and OFF repeatedly.
Then the contacts of the relay 1 (also within
the flasher unit) repeatedly switch from ON
to OFF, causing the turn-signal lights and
turn-signal indicator light LH to flash.l
When the turn-signal switch is switched to
the RH position, Tr2 (within the flasher unit)
is switched ON and OFF repeatedly.Then the contacts of relay 2 (also within
the flasher unit) repeatedly switch from ON
to OFF, causing the turn-signal lights and
turn-signal indicator light RH to flash.2. If one of the bulbs is burned out
lIf the LH (or RH) turn-signal light bulb is
burned-out, the resistance of the turn-signalcircuit as a whole increases, resulting in
Lshorter ON and OFF intervals of the LHTrl (or RH Tr2) and a higher flashing rateof the LH lights (or RH lights).CHASSIS ELECTRICAL
- Lighting System54-89
TURN-SIGNAL LIGHT AND HAZARD
L
LIGHT
OPERATION
lWhen the hazard-warning switch is switch-
ed to the “ON” position, the relay contactof the turn signal and hazard flasher unit
is switched ON and OFF repeatedly, in thesame manner as for the operation of the
turn-signal lights, and the left and right turn-
signal lights and turn-signal indicator lights
simultaneously flash repeatedly.
NOTE
(1) The number of flashes of the hazard-warn-
ing lights does not change if there is dam-
aged or disconnected wiring of one light.
(2)The light automatic shut-OFF system is valid
for the illumination light of the hazard switch.(Refer to
P.54-37.)
TROUBLESHOOTING HINTS
1.The turn-signal lights and hazard-warning lightsdo not operate at all.
l Check the hazard switch contact (power
supply side).l Check the turn-signal and hazard flasher
unit.2. All turn-signal lights at the left (or right) side
do not function.
(1) The hazard-warning lights function normal-
ly-lCheck the hazard switch contact (turn-
signal side).l Check the turn-signal switch.
3.The number of flashes of the turn-signal lights
is excessive.l Check the bulbs.
4. The hazard-warning lights do not function.
(1) The turn-signal lights function normally.l
Check the hazard switch contact (haz-
ard-warning light side).
NOTE
For the troubleshooting hints of the automatic lightshut-OFF system, refer to
P.54-37.
COMPONENT LOCATION
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Downloaded from www.Manualslib.com manuals search engine 54-100CHASSIS ELECTRICAL - Lighting System
Unit A:Must be
used at
rear tire
“..“I. .other
Unit B:Must be used
at front tire1 -216802451.Calibration fixture2. Thumb adjusting screws
3.Level vial
4. Floor level offset dial
5. Horizontal dial knob
6. Vertical dial knob
7. Aimer level vial
8. Level vial bubble
9. Top port hole
10.Viewing portON-VEHICLE
SERVICE
HEADLIGHT AIMING
PRE-AIMING INSTRUCTIONS
(Up to 1993 models)
1. Test dimmer switch operation.
2. Observe operation of high beam light mounted in instru-
ment cluster.3. Inspect for badly rusted or faulty headlight assemblies.
These conditions must be corrected before a satisfactory
adjustment can be made.4. Place vehicle on a level floor.
5. Bounce front suspension through three (3) oscillations
by applying body weight to hood or bumper.6. Inspect tire inflation.
7.Rock vehicle sideways to allow vehicle to assume its nor-
mal position.
8.If fuel tank is not full, place a weight in trunk of vehicle
9.
to simulate weight of a full tank [3 kg (6.5 Ibs.) per gallon].
There should be no other load in the vehicle other than
driver or substituted weight of approximately 70 kg (150
Ibs.) placed in driver’s position.
10. Thoroughly clean headlight lenses.
11. Adjust headlights following the instructions of the headlight
tester manufacturer.
(From 1994 models)1. Inspect for badly rusted or faulty headlight assemblies.
These conditions must be corrected before a satisfactory
adjustment can be made.2. Place vehicle on a level floor.
3. Bounce front suspension through three (3) oscillations
by applying body weight to hood or bumper.
4. Inspect tire inflation.
5.Rock vehicle sideways to allow vehicle to assume it.snor-
mal position.
6.If fuel tank is not full, place a weight in trunk of vehicle
7.
to simulate weight of a full tank [3 kg (6.5 Ibs.) per gallon].
There should be no other load in the vehicle other than
driver or substituted weight of approximately 70 kg (150
Ibs.) placed in driver’s position.8. Thoroughly clean headlight lenses.
9. When performing the visual headlight adjustment on ve-
hicles with resin lens headlights, be sure to observe the
following precautions.
CautionWhen adjusting one headlight, the other headlight
should be turned off if possible. If this is not possible,
do not cover the other headlight for more than threeminutes while it is turned on. Otherwise, heat from
the bulb may warp the headlight lens.
NOTE
If the visual headlight adjustment at low beam is made,
the adjustment at high beam is not necessary.
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Downloaded from www.Manualslib.com manuals search engine CHASSIS ELECTRICAL - Lighting System
Up to 1993 modelsFrom 1994 mod&
__ _..--.
Vertical center lineZ16FO509
JHot
z&ky M-j’ Within~ Within600mm1mm (in.)600 mm
(23.6)
(23.6)
Note l ’ Up to 1993 modelsl 2 From 1994 models
1 Etomj
0000236600002387
LUMINOUS INTENSITY MEASUREMENT
Measure the luminous intensity of headlights with a photo-me-ter in accordance with the instruction manual prepared by
the manufacturer of the photometer and make sure that the
luminous intensity is within the following limit.Limit: 20,000 cd or more
NOTE
(1) When measuring the luminous intensity of headlight, keepthe engine at 2,000 rpm and have the battery charged.
(2) If there are specific regulations for luminous intensity ofheadlights in the region where the vehicle is operated,
make sure that the intensity conforms to the requirements
of such regulations.
FOG LIGHT AIMING
1.Place vehicle on a known level floor 7.6 m (25 feet) from
aiming screen or light colored wall.
2. Use adjusting screw to adjust the top end of high intensity
zone to dimension A.
BULB REPLACEMENT
1. Disconnect the connector.
2. Turn the bulb socket counterclockwise to pull it out.
Caution
Do not touch the surface of the headlight bulb with handsor dirty gloves. If the surface dies become dirty, clean
it with alcohol or thinner, and let it dry thoroughly before
installing.
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Downloaded from www.Manualslib.com manuals search engine HEADLIGHT
CHASSIS ELECTRICAL - Lighting System54-103
REMOVAL AND INSTALLATION
(From 1994 models)
(Up to 1993 models)
Removal steps (From 1994 models)
1. Front combination light
2. Headlight
4Bb
4WFOOB100002389
Removal steps (Up to 1993 models)
1. Headlight bezel, upper
2. Headlight bezel, lower
3.Retaining ring4.Headlight5.Spring6.Mounting ring7.Housing8.Rod assembly9.Headlight hood
10.Link assembly11. Boot12. Pop-up motor
REMOVAL SERVICE POINTS
+A, HEADLIGHT BEZEL, UPPER REMOVAL(1) Raise the headlights by using the pop-up switch.
Disconnect the negative (-) battery terminal.(2) Remove the headlight bezel, upper.
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Downloaded from www.Manualslib.com manuals search engine 54-108
CHASSIS ELECTRICAL - Lighting System
1 ‘-‘FE%!oooou2394
Y18AOO61
RELAY
INSPECTIONHEADLIGHT RELAY
/ TAILLIGHT RELAY / FOG LIGHT
RELAY CHECK
Connect battery to terminal 1 and check continuity between
terminals with terminal 3 grounded.
Power is supplied4-5 terminals
Continuity
Power is not supplied4-5 terminalsNo continuity
1-3 terminals
Continuity
POP-UP MOTOR RELAY (Up to 1993 models) CHECK
Check for continuity between terminals under the conditions
described below.
LIGHT AUTOMATIC SHUT-OFF UNIT CHECK
(1) Remove the quarter trim. (Refer to GROUP 52A - Trim.)
(2) Keeping the connector connected to the light automatic
shut-OFF unit, connect the test light (12 V-3.4 W) from
the harness side to terminal No. 6 (for tail lights) or No.
7 (for headlights). Under the following conditions, checkthe operation of the test light.
id
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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
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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.
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