2004 SUZUKI GRAND VITARA turn signal

YH4
GRAND
VITARA
1
1. 4WD low switch
AUTOMATIC TRANSMISSION (4 A / T) 7B1-53
TROUBLESHOOTING (DTC P1875)
STEPACTIONYESNO
1Was ªA / T DIAG. FLOW TABLEº performed?Go to Step 2.Go to ªA / T DIAG.
FLOW TABLEº.
24WD low switch and its circuit check:
When using SUZUKI scan tool:
1) Connect SUZUKI scan tool to DLC with ignition
switch OFF.
2) Turn ignition switch ON.
3) Select ªData listº mode on scan tool.
4) Check 4WD low switch signal (ON or OFF) on
display when shifting transfer lever to each
position.
4H or 2H position : OFF
4L position : ON
Is OFF / ON displayed as described above?
When not using SUZUKI scan tool:
1) Remove PCM cover.
2) Turn ignition switch ON.
3) Check voltage at terminal C51-1-26 for G16 / J20
(C51-1-5 for H25) of PCM connector connected
when shifting transfer lever to each position.
4H or 2H position : 10 ± 14 V
4L position : 0 ± 1 V
Is voltage as specified?Check for poor con-
nection at the termi-
nal of PCM if voltme-
ter is used in Step 2.
If connection is OK,
intermittent trouble
or faulty PCM.
Check for intermittent
referring to ªIntermit-
tent and Poor
Connectionº in
Section 0A.Go to Step 3.
34WD low switch check:
1) Check 4WD low switch for operation referring to
ª4WD Low Switch Inspectionº below.
Is check result satisfactory?ªOr / Wº or ªBº circuit
open or short. If wires
and connections are
OK, substitute a
known-good PCM
and recheck.Replace 4WD low
switch.
4WD Low Switch Inspection
1) Disconnect negative cable at battery.
2) Disconnect 4WD low switch coupler.
3) Check continuity between 4WD low switch terminals.
There should be continuity when transfer lever shifted to 4L posi-
tion and should be infinity when transfer lever shifted to 4H or 2H
positions.
If not, replace 4WD low switch.
4) Connect 4WD low switch coupler and battery negative cable.

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
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

YH4
GRAND
VITARA
1. Meter cluster
2. Hazard switch
Terminal
Wire ColorSwitch Position
LH steering vehicle shown
LIGHTING SYSTEM 8B-9
TURN SIGNAL AND HAZARD WARNING
LIGHTS
TURN SIGNAL SWITCH (IN COMBINATION SWITCH)
INSPECTION
1) Disconnect negative cable at battery.
2) Disconnect combination switch lead wire coupler.
3) Check for continuity between terminals at each switch position
shown below. If check result is not as specified, replace switch.
TLTBTR
G/RGG/Y
L
N
R
REMOVAL AND INSTALLATION
Refer to Section 3C COMBINATION SWITCH for vehicle without air
bag system and Section 3C1 CONTACT COIL AND COMBINA-
TION SWITCH ASSEMBLY for vehicle with air bag system.
HAZARD SWITCH
REMOVAL
1) Remove meter cluster.
2) Pull hazard switch out of instrument panel.
3) Disconnect coupler from hazard switch.
4) Remove hazard switch.
INSTALLATION
Reverse removal procedure.
INSPECTION
Check for continuity between terminals at each switch position
shown below. If check result is not as specified, replace siwtch.

YH4
GRAND
VITARA
1. Tachometer
2. Speedometer
3. Fuel level meter
4. Water temperature meter
5. Turn signal pilot light (LH)
6. 4WD indicator (if equipped)
7. ABS warning light (if equipped)
8. Immobilizer warning light (if equipped)
9. CHECK ENGINE light
10. Turn signal pilot light (RH)11. AIR BAG warning light (if equipped)
12. O / D OFF light (A / T vehicle only)
13. Fasten seat belt light (if equipped)
14. High beam light
15. Oil pressure warning light
16. Charge warning light
17. Brake and parking brake warning light
18. POWER indicator light (A / T vehicle only)
19. Shift position indicator (A / T vehicle, if equipped)or
CHECK
ENGINEor
ABS
8C-2 INSTRUMENTATION / DRIVER INFORMATION
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.
COMBINATION METER

YH4
GRAND
VITARA
8D-24 WINDOWS, MIRRORS, SECURITY AND LOCKS
STEPACTIONYESNO
10Check that hazard warning lights flash with hazard
switch ON.
Is check result OK?Go to Step 11.Refer to ªTurn Signal
and Hazard Warning
Lightsº in DIAGNOSIS
and repair.
And go to Step 4.
11Check door knob switch and turn signal relay
circuit referring to its INSPECTION in this section.
Is this circuit OK?Replace controller and
recheck.Repair circuit referring
to WIRING DIAGRAM
MANUAL and recheck.
POWER DOOR LOCK OPERATION
INSPECTION
1) With the driver side door key turned LOCK, check all power
doors are locked.
2) With the driver side door key turned UNLOCK, check only the
driver side power door is unlocked.
Turn the driver side door key to UNLOCK again within 5 se-
conds, check all power doors are unlocked.
If check result of Step 1) and Step 2) is satisfactory, this operation
is OK.
KEYLESS ENTRY OPERATION
INSPECTION
1) With the IG switch OFF and all doors closed, push LOCK button
on transmitter. Check all power doors are locked.
2) Push UNLOCK button on transmitter. Check only driver side
power door is unlocked.
3) Push UNLOCK button on transmitter again within 5 seconds.
Check all power doors are unlocked.
But if any door is not opened within 30 seconds after power
door(s) unlocked, all power doors are locked again automatical-
ly.
If check result of Step 1) to Step 3) is satisfactory, this operation is
OK.
HAZARD WARNING LIGHTS OPERATION
INSPECTION
1) Check that hazard warning lights flash one time when power
doors are locked by pushing LOCK button on transmitter.
2) Check that hazard warning lights flash two times when power
door(s) is (are) unlocked by pushing UNLOCK button on trans-
mitter.
If check result of Step 1) and Step 2) is satisfactory, this operation
is OK.

YH4
GRAND
VITARA
8D-26 WINDOWS, MIRRORS, SECURITY AND LOCKS
IGNITION SWITCH AND DOOR SWITCH CIRCUIT
INSPECTION
1) Disconnect negative cable at battery.
2) Disconnect coupler of power door lock and keyless entry con-
troller, and connect negative cable at battery.
3) Check that the voltage and resistance between following termi-
nals are specifications.
Terminals
ConditionSpecification
E02-4 and
When ignition switch is OFF
position0 V
groundWhen ignition switch is ON
position10 ± 14 V
E02 10 andWhen all doors are closedNo continuityE02-10 and
groundWhen any one door is
openedContinuity
If check result is satisfactory, this circuit is OK.
DOOR KNOB SWITCH AND TURN SIGNAL RELAY CIRCUIT
INSPECTION
1) Disconnect negative cable at battery.
2) Disconnect coupler of power door lock and keyless entry con-
troller, and connect negative cable at battery.
3) Check that the voltage and resistance between following termi-
nals are specifications.
Terminals
ConditionSpecification
E02-6 and
groundAnytime10 ± 14 V
E02-11 and
When driver side door lock
knob is pulled upContinuity
groundWhen driver side door lock
knob is pushed downNo continuity
If check result is satisfactory, this circuit is OK.