headlight bulb MITSUBISHI 3000GT 1992 2.G Workshop Manual

Downloaded from www.Manualslib.com manuals search engine GENERAL - How to Diagnose
Changeover k&bZ1680224
Z1680225
INSPECTION1. Visual and aural checks
Check relay operation, blower motor rotation, light illumina-d
tion, etc. visually or aurally. The flow of current is invisiblebut can be checked by the operation of the parts.
2. Simple checks
For example, if a headlight does not come on and a faultyfuse or poor grounding is suspected, replace the fuse
with a new one or ground the light to the body by a jumper
wire to determine which part is responsible for the problem.3. Checking with instruments
Use an appropriate instrument in an adequate range andread the indication correctly. You must have sufficient
knowledge and experience to handle instruments correctly.
INSPECTION INSTRUMENTS
In inspection, make use of the following instruments.1. Test lights
A test light consists of a 12 V bulb and lead wires. It
is used to check voltages or short circuits.
2. Self-power test light
A self-power test light consists of a bulb, battery and lead
wires connected in series. It is used to check continuity
or grounding.
TSB Revision

Downloaded from www.Manualslib.com manuals search engine 54-62CHASSIS ELECTRICAL - Lighting System
OPERATION
lWhen the fog light switch is placed in the ON position with the lighting switch in the HEAD positionand the dimmer switch in the LO position, current flows through the dedicated fuse (4) to the coil
of the fog light relay, the fog light switch, the dimmer switch and ground, causing the contacts of
the fog light relay to close.
When the contacts of the fog light relay close, current flows through the dedicated fuse (4) to the
contacts of the fog light relay, the fog lights and ground, causing the fog lights to come on.
lWhen the dimmer switch is placed in the HI position or the lighting switch is placed in the TAIL or
OFF position while the fog lights are ON, current supply to the fog light relay or headlight relay is
cut off. As a result, the contacts of the fog light relay open, and the fog lights go out.
NOTE
The fog lights are included in the light automatic shut-OFF system. (Refer to P.54-37). The indicator lights
are also included in the same system.
Fog Lights Operation Conditions
Fog light switchLighting switchDimmer switchFog lights
ON position
1 OFF position or TAIL posi- 1 LO position1 OFF
tion
HEAD positionHI position
LO position
OFF
ON
HI position
I
OFF
TROUBLESHOOTING HINTS1. The right or left fog lights only go on.
0Check the bulb.2. Fog lights do not go on when the fog light switch is set at ON.
0Check the dedicated fuse (4).
0Check the fog light relay. (Refer to P.54-108).
0Check the fog light switch.
NOTEFor the light automatic shut-OFF system troubleshooting hints, refer to
P.54-38.
1 TSB Revision

Downloaded from www.Manualslib.com manuals search engine 54-70CHASSIS ELECTRICAL - Lighting System
OPERATION
0When the lighting switch is placed in the TAILor HEAD position, current flows through the
coil of the tail light relay to the lighting switchand ground, causing the contacts of the tail
light relay to close.
Then current flows through the contacts of thetail light relay to the dedicated fuse
(2) the
individual lights and ground, causing the tail
lights, parking/side marker lights and licenseplate lights to go ON.
<Light automatic shut-OFF system>
lIf the driver’s door is opened after the ignition
switch is turned to “OFF” or the ignition switchis turned to “OFF” after the driver’s door is
opened when the tail lights are lit, the current
which flows to the coil side of the tail light relaywill be cut off by the light automatic shut-off
unit opening the contact point, and the tail light
relay will be turned “OFF’ to automatically shut
off the tail lights, parking and front side marker
lights and license plate light.
lTo turn on the tail lights, parking and front side
marker lights and license plate light again after
they are automatically shut off, turn the lightingswitch to “OFF” once and to “HEAD” again,
or turn the ignition switch to “ACC” or “ON”,
and the automatic shut-OFF will be cancelled
and the current will flow from the light automaticshut-OFF unit to the coil side of the tail light
relay to close the contact point. Thus, the taillight relay will be turned “ON” to turn on the
tail lights, parking and front marker lights and
license plate light.
NOTE
When the lighting switch is at the “HEAD” position,
the light automatic shut-OFF system will be also
activated for the headlights. (Refer to P.54-37.) The
same system will also be activated for the illumina-
tion lights, etc.
TROUBLESHOOTING HINTS1. All lights don’t illuminate.
(1) The headlights don’t illuminate, either.l Check the fusible link (3).
(2) The headlights illuminate.l Check the tail light relay. (Refer to
P.54-108.)l Check the dedicated fuse (2).
l Check the lighting switch. (Refer to
P.54-113.)l Check the light automatic shut-OFF
unit. (Refer to
P.54-108.)2. Some light does not come on.
l Check the bulb.
l Check the grounding circuit.
3. Some light is not automatically shut off.
lCheck the driver’s side door switch.
(Refer to GROUP 42- Door Assembly.)l Check the automatic shut-OFF unit.
(Refer to
P.54-108.)
1 TSB Revision

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.
TSB Revision

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.
TSB Revision

Downloaded from www.Manualslib.com manuals search engine CHASSIS ELECTRICAL - Lighting System54-105FOG LIGHT
REMOVAL AND INSTALLATION
(Up to 1993 models)
,’
..-.-f .- . . .._ 1’yI’-’--.._ . . . ./’‘._,/‘.:‘. . . . . .--ye=.,/‘c’ !:I’:.;; ____-... _.__-.-__~___. . . . . ._./i L.- -3...-.._:.y- .‘...-____ y--. . . . . --‘-T---..-_ -_--._ _ __.-.-.;.? ::.._/ ; .--_.‘7 ,,-y-? ..-,r-; ‘;
‘....lr/I..j ,/L7 rl,-’/I” . . . ..-. ~ -,-.-A:..____ p
A’7----p--*@
,,A..
*~~~~1;’ -“‘.,.
, ‘!U ,.I,/ Ii
8, $&$Jqk2&
4&;. +I+ ’
,,, ’ .’- ‘-I,i
4!a
Removal steps(Up to 1993 models)
1. Front air side spoiler2. Fog light assembly -3. Socket cover4. Bulb
Up to 1993 models
Z16FO268
From1994 models
wZl6FO465
(From 1994 models)
(From 1994 models)
1. Front air side spoiler2. Fog light assembly
Bulb replacement removal steps4.
Lens5. Projector unit6. Bulb7. Bracket
REMOVAL SERVICE POINT
+A, BULB REMOVAL(1) Remove the socket cover (Up to 1993 models).
(2) Remove the bulb mounting spring and remove the
bulb.
CautionDo not touch the surface of the headlight bulb
with bare hands or dirty gloves.
If there are deposits on the surface, loosen and
remove the deposits with a cloth dipped in alcohol
or thinner, and let the surface dry before mounting
the bulb.
1 TSB Revision