1999 SUZUKI GRAND VITARA fun

YH4
GRAND
VITARA
L
LH : Left Hand
LSPV : Load Sensing Proportioning
Valve
M
MAF Sensor : Mass Air Flow Sensor
(Air Flow Sensor, AFS, Air
Flow Meter, AFM)
MAP Sensor : Manifold Absolute Pressure
Sensor (Pressure Sensor, PS)
Max : Maximum
MFI : Multiport Fuel Injection
(Multipoint Fuel Injection)
Min : Minimum
MIL : Malfunction Indicator Lamp
(ªCHECK ENGINEº Light)
M / T : Manual Transmission
N
NOx : Nitrogen Oxides
O
OBD : On-Board Diagnostic System
(Self-Diagnosis Function)
O / D : Overdrive
OHC : Over Head Camshaft
P
PNP : Park / Neutral Position
P / S : Power Steering
PSP Switch : Power Steering Pressure
Switch (P / S Pressure Switch)
PCM : Powertrain Control Module
PCV : Positive Crankcase Ventilation
R
RH : Right Hand
S
SAE : Society of Automotive
Engineers
SDM : Sensing and Diagnostic
Module (Air bag controller,
Air bag control module)
SFI : Sequential Multiport Fuel
Injection
SOHC : Single Over Head Camshaft
T
TBI : Throttle Body Fuel Injection
(Single-Point Fuel Injection,
SPI)
TCC : Torque Converter Clutch
TCM : Transmission Control Module
(A / T Controller, A / T Control
Module)
TP Sensor : Throttle Position Sensor
TVV : Thermal Vacuum Valve
(Thermal Vacuum Switching
Valve, TVSV, Bimetal Vacuum
Switching Valve, BVSV)
TWC : Three Way Catalytic
Converter (Three Way
Catalyst)
2WD : 2 Wheel Drive
V
VIN : Vehicle Identification
Number
VSS : Vehicle Speed Sensor
W
WU-OC : Warm Up Oxidation
Catalytic Converter
WU-TWC : Warm Up Three Way
Catalytic Converter
0A-22 GENERAL INFORMATION

YH4
GRAND
VITARA
[A]
[B]
[A]: Type 1
[B]: Type 2
0B-14 MAINTENANCE AND LUBRICATION
EMISSION CONTROL SYSTEM
ITEM 4-1
Crankcase Ventilation Hoses and Connections Inspection
(Vehicle not equipped with oxygen sensor)
Refer to the following item 4-2, PCV valve inspection.
ITEM 4-2
PCV (Positive Crankcase Ventilation) Valve Inspection
Check crankcase ventilation hose and PCV hose for leaks, cracks
or clog, and PCV valve for stick or clog. Refer to On-vehicle service
of Section 6E1 / 6E2 for PCV valve checking procedure.
ITEM 4-3
Evaporative Emission Control System Inspection
1) Visually inspect hoses for cracks, damage, or excessive bends.
Inspect all clamps for damage and proper position.
2) Check EVAP canister for operation and clog, referring to Section
6E1 / 6E2.
If a malfunction is found, repair or replace.

YH4
GRAND
VITARA
1. ªUPPERº or ªLOWERº mark
MAINTENANCE AND LUBRICATION 0B-23
3) Visually check pump drive belt for cracks and wear.
4) Check belt for tension, referring to item 1-1.
If necessary, have belt adjusted or replaced.
ITEM 6-16
All Hinges, Latches and Locks Inspection
Doors
Check that each door of front, rear and back doors opens and
closes smoothly and locks securely when closed.
If any malfunction is found, lubricate hinge and latch or repair door
lock system.
Engine hood
Check that secondary latch operates properly (check that second-
ary latch keeps hood from opening all the way even when pulling
hood release handle inside vehicle.). Also check that hood opens
and closes smoothly and properly and hood locks securely when
closed.
If any malfunction is found, lubricate hinge and latch, or repair hood
lock system.
ITEM 6-17
Air Conditioning Filter (if equipped)
Inspection
1) Remove air conditioning filter from cooling unit referring to Sec-
tion 1B.
2) Check filter for dirt. Replace excessively dirty filter.
3) Blow off dust by compressed air from air outlet side of filter.
4) Install filter to cooling unit referring to Section 1B.
Replacement
Replace air conditioning filter with new one referring to Section 1B.

YH4
GRAND
VITARA
1B-14 AIR CONDITIONING (OPTIONAL)
HIGH PRESSURE CAUGE LOW PRESSURE GAUGE THERMOMETER AT
CENTER DUCT
Insufficient
cooling of
condenser
PERFORMANCE DIAGNOSIS TABLE
TESTING RESULTSPOSSIBLE CAUSEREMEDY
Pressure high
(ªAº area of high side
graph)
Refrigerant overcharged

Expansion valve frozen or clogged

Clogged refrigerant passage of high side

Condenser fan malfunction

Dirty or bent condenser fins

Compressor malfunction (Insufficient oil etc.)

Engine overheat
Recharge

Check expansion valve

Clean or replace

Check condenser fan

Clean or repair

Check compressor

Check engine cooling
system
Pressure low
(ªBº area of high side
graph)
Insufficient refrigerant (Insufficient charge or
leakage)

Expansion valve malfunction (Valve opens too
wide)

Compressor malfunction (Insufficient
compression)
Check for leakage, repair if
necessary and recharge

Check expansion valve

Check compressor
Pressure high
(ªAº area of low side
graph)
Expansion valve malfunction (Valve opens too
wide)

Compressor malfunction (Insufficient
compression)
Check expansion valve

Check compressor
Pressure low
(ªBº area of low side
graph)
Insufficient refrigerant (Insufficient charge or
leakage)

Expansion valve malfunction (Valve opens too
narrow)

Clogged refrigerant passage (Crashed pipe)
Check for leakage, repair if
necessary and recharge

Check expansion valve

Repair or replace
Outlet air temperature
at center duct is high
(Crossing point is in
area ªAº)
Insufficient or excessive charge of refrigerant

Dirty or bent evaporator fins

Air leakage from cooling (heater) unit or air
duct

Malfunctioning, switchover function of damper
in cooling (heater) unit

Compressor malfunction
Check refrigerant
pressure

Clean or repair

Repair or replace

Repair or replace

Check compressor
Outlet air temperature
at center duct is low
(Crossing point is in
area ªBº)
Insufficient air volume from center duct
(Heater blower malfunction)

Compressor malfunction
Check blower motor and
fan

Check compressor
NOTE:
If ambient temperature is within 30 ± 35C (85 ± 95F), it is possible to do using next page table for more
detail diagnosis.

YH4
GRAND
VITARA
3-2 STEERING, SUSPENSION, WHEELS AND TIRES
ConditionPossible CauseCorrection
Abnormal or
Excessive Tire Wear
Sagging or broken springs.

Tire out of balance.

Disturbed front end alignment.

Faulty shock absorber.

Hard driving.

Overloaded vehicle.

Tires not rotating.

Worn or loose road wheel bearings.

Wobbly wheel or tires.

Tires not adequately inflated.Replace spring.
Adjust balance or replace tire.
Check front end alignment.
Replace shock absorber.
Replace tire.
Replace tire.
Replace or rotate tire.
Replace wheel bearing.
Replace wheel or tire.
Adjust the pressure.
Wheel Tramp
Blister or bump on tire.

Improper shock absorber action.Replace tire.
Replace shock absorber.
Shimmy, Shake or
Vibration
Tire or wheel out of balance.

Loose wheel bearings.

Worn tie rod ends.

Worn lower ball joints.

Excessive wheel runout.

Blister or bump on tire.

Excessively loaded radial runout of
tire / wheel assembly.

Disturbed front end alignment.

Loose or worn tie-rod end.

Loose steering gear case bolts.Balance wheels or replace tire and /
or wheel.
Replace wheel bearing.
Replace tie rod end.
Replace front suspension control
arm.
Repair or replace wheel and / or tire.
Replace tire.
Replace tire or wheel.
Check front end alignment.
Tighten or replace tie-rod end.
Tighten case bolts.
Hard Steering
Bind in tie rod end ball studs or
lower ball joints.

Disturbed front end alignment.

Rack and pinion not properly adjusted.
(if equipped with manual steering gear
case)

Tire not adequately inflated.

Bind in steering column.

Low fluid level, loose drive belt or
malfunction of power steering system.
(if equipped with P / S)Replace tie rod end or front
suspension control arm.
Check front end alignment.
Check and adjust steering gear box.
Inflate tires to proper pressure.
Repair or replace.
Check and correct.

YH4
GRAND
VITARA
POWER STEERING (P / S) SYSTEM 3B1-5
DIAGNOSIS
GENERAL DIAGNOSIS TABLE
ConditionPossible CauseCorrection
Steering wheel
feels heavy
(at low speed)
Fluid deteriorated, low viscosity, different
type of fluid mixed

Pipes or hoses deformed, air entering
through joint

Insufficient air purging from P / S circuit

P / S belt worn, lacking in tension

Tire inflation pressure excessively low

Front end alignment out of order

Steering wheel installed improperly (twisted)

Bind in tie rod or tie rod end ball joint

P / S pump hydraulic pressure fails to increase

P / S pump hydraulic pressure increases
but slowly

Steering gear box malfunctionReplace fluid.
Replace defective part.
Purge air.
Adjust belt tension or replace
belt as necessary.
Inflate tire.
Check and adjust front end
alignment.
Install steering wheel correctly.
Replace defective part.
Check pressure and repair or
replace defective part.
Check pressure and repair or
replace defective part.
Replace gear box.
Steering wheel
feels heavy
momentarily when
turning it to the
left or right
Air drawn in due to insufficient amount
of fluid

Slipping P / S belt

P / S pump hydraulic pressure fails to
increase

P / S pump hydraulic pressure increases
but slowly

Steering gear box malfunctionAdd fluid and purge air.
Adjust belt tension or replace
belt as necessary.
Check pressure and repair or
replace defective part.
Check pressure and repair or
replace defective part.
Replace gear box.
Poor recovery
from turnsNOTE:
To check steering wheel for recovery, with vehicle running at 22 mile / h (35 km / h),
turn steering wheel 90 and let it free. It should return more than 60.

Deformed pipes or hoses

Steering column installed improperly

Front end alignment out of order

Ball joints binding

P / S pump hydraulic pressure fails to
increase

P / S pump hydraulic pressure increases
but slowly

Steering gear box malfunctionReplace defective part.
Install steering column correctly.
Check and adjust front end
alignment.
Replace defective part.
Check pressure and repair or
replace defective part.
Check pressure and repair or
replace defective part.
Replace gear box.

YH4
GRAND
VITARA
3B1-6 POWER STEERING (P / S) SYSTEM
ConditionPossible CauseCorrection
Vehicle pulls to
one side during
straight driving
Mismatched or uneven tire

Low or uneven tire inflation pressure

Brake dragging in one wheel

Front end alignment out of order

Rear end alignment out of order

Malfunction of control valve in gear boxReplace tire.
Inflate tires to proper pressure or
adjust right & left tires inflation
pressure.
Repair.
Check and adjust front end
alignment.
Check and adjust rear end
alignment.
Replace gear box.
Steering wheel
play is large and
vehicle wanders
Refer to ªDiagnosisº in Section 3.
Fluid leakage
Loose joints of (hydraulic pressure)
pipes and hoses

Deformed or damaged pipes or hosesRetighten.
Replace defective part.
Abnormal noise
Air drawn in due to insufficient amount of fluid

Air mixed into fluid from pipes or hoses

Slipping (loose) P / S belt

Worn P / S belt

Loose gear box fastening bolt

Loose linkage or joints

Pipes or hoses in contact with part of
vehicle body

Vanes of P / S pump defective

Malfunction of control valve in gear box

Bearing of P / S pump shaft defectiveAdd fluid and purge air.
Replace pipes or hoses.
Adjust belt tension.
Replace belt.
Retighten bolts.
Retighten.
Install pipes and hoses correctly.
Replace defective part.
Replace gear box.
Replace bearing.
No idle up
Power steering pressure switch defectiveReplace power steering
pressure switch.

YH4
GRAND
VITARA
1. P / S fluid reservoir
2. Gauge valve (shut)
3. Oil pressure gauge
4. P / S pump
5. P / S gear box
1. P / S fluid reservoir
2. Gauge valve (open)
3. Oil pressure gauge
4. P / S pump
5. P / S gear box
POWER STEERING (P / S) SYSTEM 3B1-11
5) Check relief pressure

Increase engine speed to about 1,500 r / min (rpm). Close
gauge valve gradually while watching pressure increase indi-
cated by gauge and take reading of relief pressure (maximum
hydraulic pressure).
Relief pressure:
6200 ± 7000 kPa
(62 ± 70 kg / cm
2, 882 ± 995 psi) G16 Type engine. . . . . . .
6700 ± 7500 kPa
(67 ± 75 kg / cm
2, 953 ± 1067 psi) J20 Type engine. . . . . . .
7050 ± 7850 kPa
(70.5 ± 78.5 kg / cm
2, 1003 ± 1116 psi) H25 Type engine. .

When it is higher than specified values, possible cause is mal-
function of relief valve.

When it is lower than specified values, possible cause is either
failure of P / S pump or settling of relief valve spring.
CAUTION:
Be sure not to close gauge valve for longer than 10 se-
conds.

Next, open gauge valve fully and increase engine speed to
about 1,500 r / min (rpm). Then turn steering wheel to the left
or right fully and take reading of relief pressure.
Relief pressure:
6200 ± 7000 kPa
(62 ± 70 kg / cm
2, 882 ± 995 psi) G16 Type engine. . . . . . .
6700 ± 7500 kPa
(67 ± 75 kg / cm
2, 953 ± 1067 psi) J20 Type engine. . . . . . .
7050 ± 7850 kPa
(70.5 ± 78.5 kg / cm
2, 1003 ± 1116 psi) H25 Type engine. .

When it is higher than specified values, possible cause is mal-
function of relief valve.

When it is lower than specified values, possible cause is failure
in steering gear box. Replace gear box.
CAUTION:
Be sure not to hold steering wheel at fully turned posi-
tion for longer than 10 seconds.
BOOT
STEERING RACK BOOT CHECK
Check boot for crack and damage which, if any, means possibility
of rusty gear, entry of dust or lack of grease. Also, check if any of
such faulty conditions exists.
Check steering rack boot for dent or breakage.
If there is a dent, keep boot in most compressed state for some se-
conds to correct dent.