2000 SUZUKI GRAND VITARA System

YH4
GRAND
VITARA
BODY ELECTRICAL SYSTEM 8-3

When installing the wiring harness, fix it with clamps so that no
slack is left.

When installing vehicle parts, be careful so that the wiring har-
ness is not interfered with or caught by any other part.

To avoid damage to the harness, protect its part which may con-
tact against a part forming a sharp angle by winding tape or the
like around it.

When replacing a fuse, make sure to use a fuse of the specified
capacity. Use of a fuse with a larger capacity will cause a damage
to the electrical parts and a fire.

Always be careful not to handle electrical parts (computer, relay,
etc.) in a rough manner or drop them.

YH4
GRAND
VITARA
8-4 BODY ELECTRICAL SYSTEM

When performing a work that produces a heat exceeding 80C
in the vicinity of the electrical parts, remove the heat sensitive
electrical part(s) beforehand.

Use care not to expose connectors and electrical parts to water
which will be a cause of a trouble.

When using a tester for checking continuity or measuring voltage,
be sure to insert the tester probe from the wire harness side.
SYMBOLS AND MARKS
Refer to Section 8A.
ABBREVIATIONS
Refer to Section 8A.

YH4
GRAND
VITARA
Symbol
G : Green
G / Y : Green / Yellow G (Base Color)
G (Base Color)
Y (Stripe Color)G/Y
BODY ELECTRICAL SYSTEM 8-5
WIRE COLOR SYMBOLS
The wire color is abbreviated to the first (or first two) alphabet(s) of
each color.
There are two kinds of colored wire used in this vehicle. One is
single-colored wire and the other is dual-colored (striped) wire.
The single-colored wire uses only one color symbol (i.e. ªGº).
The dual-colored wire uses two color symbols (i.e. ªG / Yº). The first
symbol represents the base color of the wire (ªGº in the figure) and
the second symbol represents the color of the stripe (ªYº in the fig-
ure).
JOINT CONNECTOR (J / C)

Wiring of this vehicle employs joint connector (J / C) which divide
one wire into several different wires or combine several different
wires into one wire.

The joint connector is as shown in the figure.
FUSE BOX AND RELAY
Refer to Section 8A.

YH4
GRAND
VITARA
8-6 BODY ELECTRICAL SYSTEM
POWER SUPPLY DIAGRAM
Refer to Section 8A.

YH4
GRAND
VITARA
8B
LIGHTING SYSTEM 8B-1
SECTION 8B
LIGHTING SYSTEM
WARNING:
For vehicles equipped with Supplemental Restraint (Air Bag) System:

Service on and around the air bag system components or wiring must be performed only by an autho-
rized SUZUKI dealer. Refer to ªAir Bag System Components and Wiring Location Viewº under ªGener-
al Descriptionº in air bag system section in order to confirm whether you are performing service on
or near the air bag system components or wiring. Please observe all WARNINGS and ªService Precau-
tionsº under ªOn-Vehicle Serviceº in air bag system section before performing service on or around
the air bag system components or wiring. Failure to follow WARNINGS could result in unintentional
activation of the system or could render the system inoperative. Either of these two conditions may
result in severe injury.

Technical service work must be started at least 90 seconds after the ignition switch is turned to the
ªLOCKº position and the negative cable is disconnected from the battery. Otherwise, the system may
be activated by reserve energy in the Sensing and Diagnostic Module (SDM).
CONTENTS
GENERAL DESCRIPTION8B- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cautions in Servicing8B- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Symbols and Marks8B- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring Color Symbols8B- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Abbreviations8B- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Joint Connector8B- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse Box and Relay8B- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply Diagram8B- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlights8B- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight with Leveling System (If Equipped) 8B- 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DIAGNOSIS8B- 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlights8B- 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlights with Leveling System (If Equipped) 8B- 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn Signal and Hazard Warning Lights 8B- 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clearance, Tail and License Plate Lights 8B- 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Back-up Lights8B- 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Lights8B- 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Fog Light (If Equipped)8B- 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior Lights8B- 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE8B- 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlights8B- 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlights with Leveling System (If Equipped) 8B- 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn Signal and Hazard Warning Lights 8B- 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Fog Light (If Equipped)8B-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

YH4
GRAND
VITARA
6
5
1. Headlight assembly
2. Halogen bulb
3. Socket cover
4. Turn signal light bulb
5. Position light bulb
6. Turn signal light bulb socket
7. Position light bulb socket
8B-2 LIGHTING SYSTEM
GENERAL DESCRIPTION
CAUTIONS IN SERVICING
Refer to Section 8.
SYMBOLS AND MARKS
Refer to Section 8.
WIRING COLOR SYMBOLS
Refer to Section 8.
ABBREVIATIONS
Refer to Section 8.
JOINT CONNECTOR
Refer to Section 8.
FUSE BOX AND RELAY
Refer to Section 8.
POWER SUPPLY DIAGRAM
Refer to Section 8.
HEADLIGHTS

YH4
GRAND
VITARA
1. Headlight leveling switch
2. Headlight leveling unit (actuator)
3. Headlight
4. Headlight leveling unit shaft
Switch
PositionHeadlight beam
down angle
0 ÐÐÐ
1 0.624

2 1.243

3 1.867

4 2.479

LIGHTING SYSTEM 8B-3
HEADLIGHT WITH LEVELING SYSTEM (IF EQUIPPED)

YH4
GRAND
VITARA
8B-4 LIGHTING SYSTEM
DIAGNOSIS
NOTE:
Fuse name (ª º) in the table below is shown on the fuse box cover (Hard Top Model) or the junction box
(Canvas Top Model).
HEADLIGHTS
TroublePossible causeCorrection
Only one light does not
light
Bulb blown

Headlight L or R fuse blown

Socket, wiring or grounding faultyReplace bulb
Replace fuse to check for short
Repair
Headlights do not light
Headlight L and R fuses blown

Lighting and dimmer switch faulty

Defective light relay

Wiring or grounding faultyReplace fuses to check for short
Replace switches
Replace light relay
Repair
Only one beam (ªHiº or
ªLoº) does not light
Bulb blown

Lighting or dimmer switch faultyReplace bulb
Replace switch
HEADLIGHTS WITH LEVELING SYSTEM (IF EQUIPPED)
TroublePossible causeCorrection
Both headlights do not
move
ªTURN / BACKº fuse blown (Hard Top Model)
ªTRNº fuse blown (Canvas Top Model)

Leveling switch faulty

Supply voltage too lowReplace fuse to check for short
Replace switch
Recharge or replace battery
One of headlights (either
Right or Left) does not
move
Socket, wiring or grounding faulty

Actuator faulty

Vehicle body around headlight deformed

Headlight ass'y itself deformedRepair
Replace actuator
Repair body
Replace headlight ass'y
TURN SIGNAL AND HAZARD WARNING LIGHTS
TroublePossible causeCorrection
Flash rate high or one side
only flashes
Incorrect bulb

One of light bulbs burnt out

Turn signal / hazard warning relay faulty

Open circuit or high resistance existing
Replace bulb
Replace
Replace relay
Repair
Oen circuit or high resistance existing
between turn signal / hazard warning
switch and lights on one side

Wiring or grounding faulty
Re air
Repair
No flashing
ªTURN / BACKº and / or ªHAZARDº fuse(s)
blown (Hard Top Model)
ªTRNº and / or ªHAZº fuse(s) blown
(Canvas Top Model)

Open circuit or high resistance existing
between battery and switch

Turn signal / hazard relay faulty

Combination switch or hazard switch faulty

Wiring or grounding faultyReplace fuse(s) to check for
short
Check bulb and check circuit
Replace relay
Replace switch
Repair
Flash rate low
Supply voltage too low

Turn signal / hazard relay faultyCheck charging system
Replace relay