1987 SUZUKI GRAND VITARA ignition

[Gauge unit]21-7. BRAKE WARNING LAMP
Use ohmmeter to confirm that level gauge unit
changes in resistance with change of the float
position. Float position-to-resistance relation-
ship can be plotted in a graph as shown below.
The brake warning lamp system consists of the
brake fluid level switch installed to the master
cylinder reservoir and the lamp inside the
combination meter.
This circuit includes a parking brake switch
which gives a warning for unreleased parking
brake.
F-E
Fig. 21-20 Resistance-Fuel Level Relationship
Fig. 21-21
F : Full
E : Empty
OPERATION
Brake fluid level warning lamp circuit consists of
brake fluid level switch installed in master
cylinder reservoir, brake fluid level warning lamp
in gage cluster and check relay.
Also, this circuit is additionally provided with
parking brake switch which warns that parking
brake is applied.when engine is stopped,
warning lamp comes on, if ignition switch is
turned ON and parking brake is applied.
For bulb check, warning lamp comes on briefly
during engine starting regardless of brake fluid
level position and parking brake operation.
Because point of check relay is closed.
After engine is started, release parking brake.
If lamp gose off, brake fluid level is adequate.
When warning lamp dose not operate, use circuit
diagram as reference to check bulb, wiring, etc.
r---i
check relayl-2-l
B/Y : Black/Yellow1. Fluid level switch
R/B : Red/Black2. Warning lamp
B: Black3. Parking brake switch
B/W : Black/White4. Main switch
B/BI : Black/Blue5. Battery
Fig. 27-22
21-13

21-14. FUSE BOX
The fuses in the fuse box is wired as follows.
Head light (R)
Fuse box
Head light (L)Battery7
Horn, Interior light, Door warning
buzzer, ctock (optional)
Stop light
Hazard warning light-W/GI10AW,YI
Cigarette lighter (optional),
Radio (optional)
-w’B++-B7Ignition coil, Fuel cut solenoid,
TWSV, MCSV, vent solenoid,-B/W15A
3
BIBI-
ECM
Heater blower motor-L9
Rear defogger (optional)-Y/G15A
Wiper motor, washer motor-Y/El15A:: BIBI-
Turn signal light, Back-up light-Y10A
Illumination light, License light,
Meter illumination light
-R’y++lFront position and tail light (RI,
Side marker light (RI--RIG5A:: RIB
Lighting switch
Front position and tail light (L), --R,a,
Side marker light (L)
-t
-c
Mainswitch
Tostarter
B/R--,
-
21-18

21-15. WIRING HARNESS ROUTING
When reinstalling wire harness, be careful for the following.
l When doing wiring harness related work, make always sure to disconnect battery negative cable from
battery.
l Clamp wire harness securely at prescribed positions.
l Try to route wire harness so as to avoid contact with other parts as much as possible. Use special care
not to let it contact sharp edges of body or other parts.
0 Connect connectors securely.
Engine Room Wiring
1.Wire harness No. 2
2.Battery3. To starter, alternator, head light, small light, horn and etc.
4. To license light, stop/tail light, 4WD switch
5.Earth
6.To wiring harness No.17. To head light, small light, etc.
8.To distributor
9. To ignition coil
10. To back up light switch
11. To fifth switch
12.To TWSV
13.Duty check coupler
14. Thermal engine room switch
15. HAC
16.Ignition coil
17.Brake fluidreservoir
Fig. 27-37
21-19

1.Battery2.Fusible link
3.To starter
4. To starter, alternator, etc
5.Earth6. Earth (To starter mounting bolt)7.Wiring harnessNo.2
64
1
I
1.From wire harnessNo.22. TWSV (Three way solenoid valve)
3. Water temperautre gauge4.Alternator5.Intake manifold
6.Clamp
7.ToVSV6.Thermal switch
9. Mount this terminal horizontal-ly as shown
10.Thermostat cap
1. Wire harness No. 2
2. To distributor
3. To fifth switch4. To back up light switch5. To ignition coil6. Condensor
7. Noise suppressor filter(Clamp it toward engineroom so as to prevent itfrom contacting dashpanel edge.)6. Earth9. To license light, stop/taillight, 4WD switch
10. Ignition coil
11. Distributor12. To wire harness No. 2
13. Ignition coil cap
Fig. 21-38
21-20

1.Instrument panel
2.Steering column
3. Steering column holder4.Wiring harness No.1
5. To combination switch
6. To ignition switch
7. To clutch switch
8. Defroster hose9. Brake pedal
10. Clutch pedal
11. Clamp lead wires of ignition switch and combination switch,using care not to allow lead wires to contact the edge of steer-
ing column bracket.
Fig. 21-41
21-16. WIRING DIAGRAM
Wiring diagrams are attached at the end of this manual.
21-22