2000 SUZUKI GRAND VITARA Egr

YH4
GRAND
VITARA
GENERAL INFORMATION 0A-21
A
ABS : Anti-lock Brake System
ATDC : After Top Dead Center
API : American Petroleum Institute
ATF : Automatic Transmission Fluid
ALR : Automatic Locking Retractor
AC : Alternating Current
A / T : Automatic Transmission
A / C : Air Conditioning
ABDC : After Bottom Dead Center
A / F : Air Fuel Mixture Ratio
A-ELR : Automatic-Emergency
Locking Retractor
B
B+ : Battery Positive Voltage
BTDC : Before Top Dead Center
BBDC : Before Bottom Dead Center
C
CKT : Circuit
CMP Sensor : Camshaft Position Sensor
(Crank Angle Sensor, CAS)
CO : Carbon Monoxide
CPP Switch : Clutch Pedal Position Switch
(Clutch Switch, Clutch Start
Switch)
CPU : Central Processing Unit
CRS : Child Restraint System
D
DC : Direct Current
DLC : Data Link Connector
(Assembly Line Diag. Link,
ALDL, Serial Data Link, SDL)
DOHC : Double Over Head Camshaft
DOJ : Double Offset Joint
DRL : Daytime Running Light
DTC : Diagnostic Trouble Code
(Diagnostic Code)
E
EBCM : Electronic Brake Control
Module, ABS Control
Module
EBD : Electric Brake force Distribution
ECM : Engine Control Module
ECT Sensor : Engine Coolant Temperature
Sensor (Water Temp.
Sensor, WTS)
EGR : Exhaust Gas Recirculation
EGRT Sensor : EGR Temperature Sensor
(Recirculated Exhaust Gas
Temp. Sensor, REGTS)
EFE Heater : Early Fuel Evaporation
Heater (Positive Temperature
Coefficient, PTC Heater)
ELR : Emergency Locking Retractor
EPS : Electronic Power Steering
EVAP : Evaporative Emission
EVAP Canister : Evaporative Emission
Canister (Charcoal Canister)
F
4WD : 4 Wheel Drive
G
GEN : Generator
GND : Ground
H
HC : Hydrocarbons
HO2S : Heated Oxygen Sensor
I
IAC Valve : Idle Air Control Valve (Idle
Speed Control Solenoid
Valve, ISC Solenoid Valve)
IAT Sensor : Intake Air Temperature
Sensor (Air temperature
Sensor, ATS)
ICM : Immobilizer Control Module
IG : Ignition
ISC Actuator : Idle Speed Control Actuator
(Motor)
ABBREVIATIONS MAY BE USED IN THIS MANUAL

YH4
GRAND
VITARA
3A-2 FRONT END ALIGNMENT
CAMBER
Camber is the tilting of the front wheels from the vertical, as viewed from the front of the vehicle. When the wheels
tilt outward at the top, the camber is positive. When the wheels tilt inward at the top, the camber is negative. The
amount of tilt is measured in degrees.
PRELIMINARY CHECKS PRIOR TO ADJUSTING FRONT ALIGNMENT
Steering and vibration complaints are not always the result of improper alignment. An additional item to be checked
is the possibility of tire lead due to worn or improperly manufactured tires. ªLeadº is the deviation of the vehicle from
a straight path on a level road without hand pressure on the steering wheel.
Section 3 of this manual contains a procedure for determining the presence of a tire lead problem.
Before making any adjustment affecting toe setting, the following checks and inspections should be made to en-
sure correctness of alignment readings and alignment adjustments:
1) Check all tires for proper inflation pressures and approximately the same tread wear.
2) Check for loose ball joints. Check tie rod ends; if excessive looseness is noted, it must be corrected before ad-
justing.
3) Check for run-out of wheels and tires.
4) Check vehicle trim heights; if out of limits and a correction is to be made, it must be made before adjusting toe.
5) Check for loose control arms.
6) Check for loose or missing stabilizer bar attachments.
7) Consideration must be given to excess loads, such as tool boxes. If this excess load is normally carried in ve-
hicle, it should remain in vehicle during alignment checks.
8) Consider condition of equipment being used to check alignment and follow manufacturer's instructions.
9) Regardless of equipment used to check alignment, vehicle must be on a level surface both fore and aft and
transversely.
TOE ADJUSTMENT
Toe is adjusted by changing tie rod length. Loosen right and left tie
rod end lock nuts first and then rotate right and left tie rods by the
same amount to align toe-in to specification.
In this adjustment, right and left tie rods should become equal in
length.
After adjustment, tighten lock nuts to specified torque.
Tightening Torque
(a): 65 N
.m (6.5 kg-m, 47.0 lb-ft)
CAMBER AND CASTER ADJUSTMENT
Should camber or caster be found out of specifications upon in-
spection, locate its cause first. If it is in damaged, loose, bent,
dented or worn suspension parts, they should be replaced. If it is
in body, repair it so as to attain specifications.
To prevent possible incorrect reading of camber or caster, vehicle
front end must be moved up and down a few times before inspec-
tion.

YH4
GRAND
VITARA
1. Power steering gear box
2. Power steering pump
3. P / S fluid reservoir
1. Power steering pump
2. Valve section
3. P / S fluid reservoir
4. Rack
5. Pinion
6. Cylinder
3B1-2 POWER STEERING (P / S) SYSTEM
GENERAL DESCRIPTION
POWER STEERING SYSTEM
The power steering (P / S) system in this vehicle reduces the driver's effort needed in turning the steering wheel
by utilizing the hydraulic pressure generated by the power steering (P / S) pump which is driven by the engine.
It is an integral type with the rack and pinion gears and the control valve unit, hydraulic pressure cylinder unit all
built in the steering gear box.

YH4
GRAND
VITARA
1. Pin
2. Stub shaft (Rotor)
3. Torsion bar
4. Sleeve
5. Bearing
6. Pinion
7. Gear box
8. Rack
9. Ferrule
10. Valve case
POWER STEERING (P / S) SYSTEM 3B1-3
STEERING GEAR BOX
The steering gear box consists of two sections: one including a cyl-
inder and the other a valve. Main components of the cylinder sec-
tion are a gear box, a rack and a tube and those of the valve section
are a valve case, a sleeve and a stub shaft. The sleeve is linked with
the pinion through a pin and the valve and stub shaft are integrated
into one unit. Then the pinion and the stub shaft are linked to each
other by means of the torsion bar.
Thus, when the stub shaft moves, the valve changes its position,
thereby switching the hydraulic passage from the pump to the cylin-
der to help steering operation.
When turning the steering wheel feels heavy due to P / S fluid leak-
age or for some other reason (i.e., when in the manual steering
mode), the stub shaft and pinion are in direct linkage and the force
is output directly through the pinion and rack.

YH4
GRAND
VITARA
1. Boot
2. Snap ring
1. Circlip
2 Snap ring plier
3. Cage
FRONT DRIVE SHAFT / SHAFT BEARING, OIL SEAL 4A2-5
DISASSEMBLY
1) Remove boot band of differential side joint.
2) Slide boot toward the center of shaft and remove snap ring from
outer race, then take shaft out of outer race.
3) Remove circlip and then cage.
4) Remove inside and outside boots from shaft.
CAUTION:

Do not disassemble wheel side joint (outboard joint). If
any malcondition is found in joint, replace it as assem-
bly.

Do not disassemble ball joint of differential side joint.
If any malcondition is found in ball joint, replace differ-
ential side joint assembly.
INSPECTION

Check boots for breakage or deterioration. Replace them as nec-
essary.

Check circlip, snap ring and boot bands for breakage or deforma-
tion. Replace as necessary.
CLEANING

Wash disassembled parts (except boots) in degreaser. After
washing, dry parts completely by blowing air.

Clean boots with cloth. DO NOT wash boots in degreaser, such
as gasoline or kerosene, etc.
Washing in degreaser causes deterioration of boot.

YH4
GRAND
VITARA
1. Boot
2. Boot band
1. Circlip1. Cage Wheel side
ªAº Fill grease 85g (3.0 oz)
4A2-6 FRONT DRIVE SHAFT / SHAFT BEARING, OIL SEAL
ASSEMBLY
CAUTION:

To prevent any problem caused by washing solution, do
not wash joint boots. Degreasing of those parts with cloth
is allowed.

For M / T vehicle with H25 engine
To ensure full performance of joint as designed, be sure
to distinguish between two types of grease in repair set
and apply specified volume to respective joint. i.e. yellow
grease to wheel side joint and black one to differential
side.

Bend each boot band against forward rotation.

Do not squeeze or distort boot when fastening it with
bands.
Distorted boot caused by squeezing air may reduce its du-
rability.
1) Fully apply joint grease to wheel side joint.
Use joint grease in the tube included in spare part.
2) Fit wheel side boot on shaft.
Fill up inside of boot with joint grease of about 90 gram.
Before fixing boot band, insert screwdriver into boot on joint side
and allow air to enter boot so that air pressure in boot becomes
the same as atmospheric pressure.
3) Fixing boot band.
4) Install boot onto drive shaft till its small diameter side fits to shaft
groove and fix there with boot band.
5) Install cage to shaft.
CAUTION:
Install cage directing smaller outside diameter side to
shaft end.
6) Install circlip by using snap ring plier.

YH4
GRAND
VITARA
1. Parking brake cable
2. Equalizer
3. Pin
4. Parking brake lever bolt
5. Parking brake lever assembly
5C-4 PARKING AND REAR BRAKE
INSTALLATION
1) Install in reverse order of REMOVAL procedure.
Check equalizer inclined angle.
Angle ªaº: within 15 degrees
Tightening Torque
(a): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
2) After all parts are installed, parking brake lever needs to be ad-
justed. Refer to PARKING BRAKE INSPECTION AND AD-
JUSTMENT in Section 5.
3) Check brake drum for dragging and brake system for proper per-
formance.

YH4
GRAND
VITARA
7B1-20 AUTOMATIC TRANSMISSION (4 A / T)
PRECAUTION IN DIAGNOSING TROUBLE

Don't disconnect couplers from PCM (ECM), battery cable from battery, PCM ground wire harness from engine
or main fuse before checking the diagnosis information (DTC, freeze frame data, etc.) stored in PCM memory.
Such disconnection will clear memorized information in PCM memory.

Using SUZUKI scan tool (Tech-1), or also generic scan tool for vehicle without monitor connector, the diagnostic
information stored in PCM memory can be checked and cleared as well. Before its use, be sure to read Operator's
(instruction) Manual supplied with it carefully to have good understanding of its functions and usage.

Priorities for diagnosing troubles (Only for vehicle without monitor connector)
If two or more diagnostic trouble codes (DTCs) are stored, proceed to the flow table of the DTC which was de-
tected earliest in the order and follow the instruction in that table.
If no instructions are given, troubleshoot diagnostic trouble codes according to the following priorities.
1. Diagnostic trouble codes (DTCs) other than DTC P0171 / P0172 (Fuel system too lean / too rich) and DTC
P0400 (EGR flow malfunction)
2. DTC P0171 / P0172 (Fuel system too lean / too rich) and DTC P0400 (EGR flow malfunction)

Be sure to read ªPrecautions for Electrical Circuit Serviceº in Section 0A before inspection and observe what is
written there.

PCM replacement
When substituting a known-good PCM, check for following conditions.
Neglecting this check may result in damage to good PCM.
± All relays and actuators have resistance of specified value.
± MAF sensor, MDP sensor, TP sensor and fuel tank pressure sensor are in good condition. Also, the power
circuit of these sensors is not shorted to the ground.