1987 SUZUKI GRAND VITARA Service Repair Manual

21-2

Wire color
G/R . . .Green/RedOr . Orange
0 . . . . .BlackBI/B . Blue/Black
0rlB . . .Brown/Blackw . White
Y/B . . .Yellow/BlackY/R . Yellow/Red
B/W . .Black/WhiteG/Y . .Green/Yellow
W/R .White/RedY/W . . Yellow/White
RIB .Red/BlackR/Y . Red/Yellow
G. . .GreenR/G . . .Red/Green
1.
2.
3.
4.
5.
6.7.
8.
9.
10.
50,000 mile, 80,000 mile and11. 4WD light
100,000 mile sensor switch12. Noise’suppressor
Turn signal pilot light (Lb13. Turn signal pilot light (RI
Cancel switch14. Beam pilot light
Seat belt warning light15. Fuel level meter
Brake oil level warning light16. Temp. meter
and parking brake light17. Illumination light
Charge light”18. Tachometer
Engine oil pressure light19. Seat belt warning buzzer
“CHECK ENGINE" light 20. Combination meter
Diode21. Check switch
Seat belt relay
[Combination meter without tachometer][Combination meter with tachometer]
4. TEMP. meter5. Meter print plate
6. Bulb
7. Socket
Combination meter
Fig. 21-1
8. Tachometer
REMOVAL AND INSTALLATION
1. Disconnect battery negative cable.
2. Remove instrument lower panel.
3. Lower steering column.
4. Remove combination meter cover.
5. Disconnect speedometer cable and wire
harness coupler.
7. To install combination meter, reverse above
removal procedure.
6. Remove combination meter.
Fig. 21-2
2. Speedometer3. Fuel Meter
21-3

21-2. HEAD LIGHT
WIRING CIRCUIT
Headlight
HeadlightI
Meter pilot light (Beam)II
I
4
Lighting switchDimmer & passing switch
To license light,illumination light,
meter illumination light
Wire color
B. . . .Black
Br/Y . .Brown/Yellow
R.....Red
R/w . . .Red/White
RIBI . .Red/Blue
B/Y . . .Black/Yellow
WIBI . .White/Blue
W/R .WhitelRed
W/Y .White/Yellow
To right side position &tail light and side markerRIGlights
iIB
To left side position 81tail light and side’RIBId
marker lightsFuse box
Fig. 21-3
21-4

HEADLIGHT INSPECTION
1.Lighting (Low beam, High beam, Passing)
2. Mounting
3.Dirt and cracks on lenses
4.Main beam axis direction and brightness
HEADLIGHT BEAM SETTING (STANDARD PROCEDURE)
Before setting the headlight beams, adjust air pressures of four tires to a specified value respectively. Move
the vehicle up and down by hand to settle its attitude. Then move it over a flat surface. There are available
a variety of headlight beams setting methods (e.g., the screen method using a focusing tester, etc.). How-
ever, the method described here does not use such tester.
Beam alignment
Unless otherwise obligated by the local regulations, align the headlight beams according to the following
procedure. Place a blank wall 7.6 m (25 ft) ahead of the headlight. Check to see if the hot spot (high
intensity zone) of each main (low) beam axis falls as illustrated below. The beam alignment should be
carried out with one driver (68 kg, 150 lb) aboard.
7.6 m(25 ft)..
Fig. 21-4
LH. HE
X$ H
I
I\D LIGHTRH. HEAD LIGHT
AB
X - X :Horizontal center line of headlightsH : 25 mm (0.98 in.)
A - A :Vertical center line of left headlightB - 6 :Vertical center line of right headllght
Fig. 21-5
21-5

MAINTENANCE
(1) Headlight adjustment
There are two screws (1)and (2)which can be
used for adjustment. Use these screws to
adjust the headlight position for the vertical
and horizontal alignment of each beam.
(2) Head light dimmer switch
Using circuit tester, check each circuit for
continuity by putting tester probe pins to
the terminals shown in Fig. 21-7. With switch
kept in LOW BEAM position, tester should
indicate continuity between terminals 0 and
@ . Similarly, there should be continuity
between terminals @ and @ when in HIGH
BEAM position.
Fig. 21-6
Switch connector
1”mmmm-J
1.Green/Red (Green/Black)8.Red2.Green/Yellow9.Blue/Green
3.Green10.Brown/Yellow
4.Yellow11.Red/Blue
5.White/Blue12.Red/Yellow
6.Yellow/Blue13.White7.Red/White
1 17 1 18 119 1
14.Yellow/White
15.Blue16.Blue/Red
Fig. 21-7
17.Blue/Black
18.Black19.Blue/White
Combination switch (Lighting switch circuit)
Fig. 27-8
II
II I, Brown(Yellow
21-6

21-3. TURN SIGNAL LIGHT AND HAZARD WARNING LIGHT
CIRCUIT DESCRIPTION
1 Right turn signal
2.. Left turn signal
3. Battery4. Main switch
5. Fuse
6. Turn signal and hazard warning switch
7. Turn signal and hazard warning relay
Fig. 21-9
8.Green/Yellow
9.White/Yellow
10.Yellow11.Yellow/Blue
12.Green
13. Black/Blue
14. Green/Red
15.Meter pilot light(Right)
16.Meter pilot light(Left)
17.White/Green
When hazard warning switch is “OFF”, Yellow lead @ is connected to Yellow/Blue lead 0.
When the hazard warning switch is “ON”,White/Green lead @I is connected to Yellow/Blue lead @I, and
Green lead (12)to both Green/Yellow lead @ and Green/Red lead @.
When Turn-signal switch is “ON” for right turn, Green lead @ is connected to Green/Yellow lead @.
When Turn-signal switch is “ON” for left turn, Green lead @ is connected to Green/Red lead @.
21-7

INSPECTION
1) Trouble diagnosis
Symptom
1. Lights will not come on in either left or
right group of light.
2. Hazard light comes on but turn signal
lights will not.
3. No light comes on; or lights light up but
do not flicker.
4. Turn signal lights are satisfactory, but
hazard light will not come on.
5. Flickering freueqncy is erratic, or lights
remain lit.
6. Turning on hazard warning switch lights up
only one group of lights.
2) Turn signal switch
Using circuit tester, check for continuity
between each pair of terminals by referring to
the chart given below and figure at the right
for each position of turn signal switch lever.
Discontinuity means that contact points are
burnt or otherwise defective in the switch.
For example, switch is in sound condition if
continuity is noted between terminals 2 and
3, with lever in right-turn position, and
between terminals 1 and 3, with lever in left-
turn position.
Possible cause
Fusible link is blown off.
Open circuit (due to poor point contact) in turn
signal dimmer switch.
Defective relay unit.
Open circuit in hazard warning switch.
Light bulbs are defective or improperly grounded.
Defective contact in dimmer switch.
Switch connector
I”””yrm-
1.Green/Red (Green/Black)8.Red
2.Green/Yellow9.Blue/Green3.Green10.Brown/Yellow4.Yellow11.Red/Blue
5.White/Blue12.Red/Yellow6.Yellow/Blue13.White7.Red/White
Fig. 21-10
3) Hazard warning switch
Disconnect, lead wire of the hazard warning switch at its coupler. Set switch to ON position and check
for continuity with circuit tester between each of the following pairs of terminals; 2 and 3, 1 and 3, 5
and 6 among those shown in Fig. 21-10. The switch is in sound condition if continuity is noted between
each pair.
Turn signal & hazard warning switch
1(Green/Redor
Green/Black)
(Grien)2(Green/Yellow) (Yeiow)5(YelloiIBlue) (White/Blue)
Hazard warning Left-N-Right0a-000
Left00l0
Turn signalNeutral*0
Rightla*0
21-8

21-4. WINDSHIELD WIPER MOTOR
CIRCUIT DESCRIPTION
The circuit is designed so that, when the Wiper Switch is turned “OFF”,the blade will automatically return
to the horizontal position. In Fig. 21-11, when the Wiper Switch is turned “ON” while the Main Switch is
“ON”, current is supplied to the Wiper Motor from the Battery, the motor rotates and the blade moves.
The gear mechanism which converts rotational movement of the motor into swinging movement of the
blade has a cam on the final gear shaft. The cam switches the contacts of P0 and P2 every revolution.
(At the blade stop position, the contact is switched from P2 to P1.)
Repeated contact making and breaking is independent of the wiper motor rotation. When the Wiper Switch
is turned “OFF” while the blade is in a position other than the rest position, motor current path is changed
(i.e. BI/W + BI + MOTOR). Therefore, the motor keeps rotating even though the wiper switch is turned
“OFF”, and the blade will return to the rest position.
When the blade returns to the rest position, the cam contact is changed from P2 to P1 and motor current
is shunted. When supply to the motor is cut off, a counter electromotive force is generated in the
armature. As a result of this counter electromotive force, current flows through the motor and shunt
circuit and the motor stops and the wiper blade stays in the specified position.
[INTERVAL WIPER RELAY CIRCUIT (OPTIONAL)]
When the wiper switch is set to the interval position with the ignition switch ON (the condenser is charged
at this time), current from the battery flows through the yellow/blue wire, generates magnetic force in the
coil in the relay and causes the switch in the relay to turn ON. Then current is transmitted in the sequence
of yellow/blue, relay, wiper switch and blue and causes the wiper motor to rotate (meanwhile, the conden-
ser discharges). By the time the wiper motor makes one rotation and the cam in the motor comes to the
automatic stop position P1, the condenser in the relay has finished discharging (no magnetic force in the
coil in the relay). Then the switch in the relay turns OFF and the wiper stops. They remain that way until
the condenser is fully charged. As soon as the condenser begins discharging after being fully charged,
magnetic force generated in the coil in the relay causes the switch to turn ON. As described above, interval
operation of the wiper motor is controlled by charging and discharging of the condenser.
2-speed type
OFF
1. Battery2. Main switch
3. Fuse box4. Wiper motor5. Wiper switch
6. Washer switch7. Washer motor
W/Y : White/Yellow
B/BI : Black/Blue
Y/El: Yellow/Blue
BI/W: Blue/WhiteBI: Blue
LOW SPEED
BIIR : Blue/Red
HIGH SPEED
Fig. 21-11
6
21-9