YH4
GRAND
VITARA
J20
J20
1. 100 N, 10 kg or 22 lb
2. Fan pulley3. Crankshaft pulley
4. Adjusting and pivot bolt
0B-6 MAINTENANCE AND LUBRICATION
Water pump, generator, power steering and / or A / C
compressor (if equipped) drive belt (J20 engine)
Inspection
1) Disconnect negative cable at battery.
2) Inspect belt for cracks, cuts, deformation, wear and cleanliness.
If any of above conditions are found, replace.
Also, check belt for tension.
Tension indicator ªBº should be the right of indicator ªAº as
shown in figure. If indicator ªBº is found to the left of indicator ªAº,
replace generator belt.
Replacement
Replace belt referring to Section 6H for replacement procedure of
generator drive belt.
Engine cooling fan drive belt (J20 engine)
Inspection
1) Disconnect negative cable at battery.
2) Inspect belt for cracks, cuts, deformation, wear and cleanliness.
If any defect exists, replace. Check belt for tension.
Cooling fan belt tension
ªaº: 5 ± 7 mm (0.20 ± 0.27 in.) deflection under 100 N, 10 kg
or 22 lb pressure.
NOTE:
When replacing belt with a new one, adjust belt deflection
to 4 ± 5 mm (0.16 ± 0.19 in.).
3) If the belt is too tight or too loose, adjust it to specification by ad-
justing cooling fan pulley position.
4) Tighten adjusting bolt and pivot bolt.
5) Connect negative cable at battery.
Replacement
Replace belt referring to Section 6B for replacement procedure of
cooling fan drive belt.
YH4
GRAND
VITARA
G16 with P / S
G16 with P / S and A / C
H25 with P / S
H25 with P / S and A / C
1. Crankshaft pulley
2. P / S pump pulley
3. A / C compressor pulley
(if equipped)4. Tension pulley
5. Tension pulley bolts
MAINTENANCE AND LUBRICATION 0B-7
Power steering pump and / or A / C compressor drive belts (if
equipped) for G16 and H25 engines.
Inspection
1) Disconnect negative cable at battery.
2) Inspect belt for cracks, cuts, deformation, wear and cleanliness.
If any defect exists, replace.
Check belt for tension.
Power steering pump and / or A / C compressor drive belt
tension.
ªaº: 6 ± 9 mm (0.24 ± 0.35 in.) deflection under 100 N, 10 kg
or 22 lb pressure.
ªbº: 4 ± 7 mm (0.16 ± 0.28 in.) deflection under 100 N, 10 kg
or 22 lb pressure.
If belt tension is out of above specification, adjust it referring to
Section 1B or 3B1.
3) Connect negative cable to battery.
Replacement
Replace belt referring to Section 1B or 3B1 for replacement proce-
dure of belt.
YH4
GRAND
VITARA
0B-24 MAINTENANCE AND LUBRICATION
FINAL INSPECTION
Seats
Check that seat slides smoothly and locks securely at
any position. Also check that reclining mechanism of
front seat back allows it to be locked at any angle.
Seat Belt
Inspect belt system including webbing, buckles, latch
plates, retractors and anchors for damage or wear.
If ªREPLACE BELTº label on front seat belt is visible,
replace belt.
Check that seat belt is securely locked.
Battery Electrolyte Level Check
Check that the electrolyte level of all battery cells is
between the upper and lower level lines on the case.
If battery is equipped with built-in indicator, check bat-
tery condition by the indicator.
Accelerator Pedal Operation
Check that pedal operates smoothly without getting
caught or interfered by and other part.
Engine Start
Check engine start for readiness.
On automatic transmission vehicles, try to start the
engine in each select lever position. The starting mo-
tor should crank only in ªPº (Park) or ªNº (Neutral).
On manual transmission vehicles, place the shift le-
ver in ªNeutral,º depress clutch pedal fully and try to
start.
Exhaust System Check
Check for leakage, cracks or loose supports.
Clutch (For Manual transmission)
Check for the following:
Clutch is completely released when depressing
clutch pedal.
No slipping clutch occurs when releasing pedal and
accelerating.
Clutch itself is free from any abnormal condition.
Gearshift or Select Lever (Transmission)
Check gear shift or select lever for smooth shifting to
all positions and for good performance of transmis-
sion in any position.
With automatic transmission equipped vehicle, also
check that shift indicator indicates properly according
to which position select lever is shifted to.
With automatic transmission equipped vehicle, make
sure that vehicle is at complete stop when shifting se-
lect lever to ªPº range position and release all brakes.
Brake
[Foot brake]
Check the following:
that brake pedal has proper travel,
that brake works properly,
that it is free from noise,
that braking force is applied equally on all wheels,
and that brake do not drag.
[Parking brake]
Check that lever has proper travel.
WARNING:
With vehicle parked on a fairly steep slope,
make sure nothing is in the way downhill to
avoid any personal injury or property damage.
Be prepared to apply regular brake quickly
even if vehicle should start to move.
Check to ensure that parking brake is fully effective
when the vehicle is stopped on the safe slope and
brake lever is pulled all the way.
WARNING:
When carrying out road tests, select a safe
place where no man or no running vehicle is
seen so as to prevent any accident.
WARNING:
Before performing the following check, be
sure to have enough room around the vehicle.
Then, firmly apply both the parking brake and
the regular brakes. Do not use the accelerator
pedal. If the engine starts, be ready to turn off
the ignition promptly. Take these precautions
because the vehicle could move without warn-
ing and possibly cause personal injury or
property damage.
YH4
GRAND
VITARA
1A
HEATER AND VENTILATION 1A-1
SECTION 1A
HEATER AND VENTILATION
WARNING:
For vehicles equipped with Supplement 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 or 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).
NOTE:
The link mechanism of the heater varies depending on the specifications.
CONTENTS
GENERAL DESCRIPTION1A- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Body Ventilation1A- 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DIAGNOSIS1A- 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnosis Table1A- 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring Circuit1A- 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE1A- 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Blower Unit1A- 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Blower Motor1A- 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Blower Motor Relay1A- 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Blower Motor Resistor1A- 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heater Mode Control Switch1A-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heater Mode Control Actuator1A-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heater Control Lever Assembly 1A-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heater Control Cables1A-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heater Unit1A-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Duct1A-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
YH4
GRAND
VITARA
HEATER AND VENTILATION 1A-5
1. Blower unit
2. Blower motor resistor
3. Blower motor relay
4. Blower fan
5. Blower motor
3. Cover
ON-VEHICLE SERVICE
BLOWER UNIT
REMOVAL
1) Disconnect negative (±) cable at battery.
2) Disable air bag system, if equipped. Refer to DISABLING AIR
BAG SYSTEM in Section 10B.
3) Remove passenger lower member (1).
4) Remove ECM (1) with bracket (2) from blower motor unit (4).
5) Disconnect blower motor (1), blower motor relay (2) and resistor
lead wires (3) at couplers.
YH4
GRAND
VITARA
HEATER AND VENTILATION 1A-7
1. Fastening nuts
1. Air flow
BLOWER MOTOR
REMOVAL
1) Disconnect negative (±) cable at battery.
2) Disable air bag system, if equipped. Refer to DISABLING AIR
BAG SYSTEM in Section 10B.
3) Remove ECM with bracket from blower motor unit.
4) Disconnect harness clamps from dash panel.
5) Loosen three nuts fastening blower unit.
6) Disconnect blower motor lead wire at coupler (2).
7) Remove blower motor (3) from blower unit (1).
INSPECTION
Check continuity between terminal to terminal as shown in left fig-
ure.
If check results are continuity, proceed to next operation check.
If not, replace.
Connect battery to blower motor as shown, then check that the
blower motor operates smoothly and specified current.
Specified current: Max. 25 A at 12 V
INSTALLATION
1) Reverse removal procedure for installation.
2) Enable air bag system, if equipped. Refer to ENABLING AIR
BAG SYSTEM in Section 10B.
YH4
GRAND
VITARA
1A-8 HEATER AND VENTILATION
BLOWER MOTOR RELAY
REMOVAL
1) Disconnect negative (±) cable at battery.
2) Disable air bag system, if equipped. Refer to DISABLING AIR
BAG SYSTEM in Section 10B.
3) Open glove box, then remove screw.
4) Remove glove box.
5) Disconnect relay coupler.
6) Remove blower motor relay (1) by removing its fastening screw (2).
INSPECTION
1) Check that there is no continuity between terminal ªcº and ªdº.
If there is continuity, replace relay.
2) Connect battery positive (+) terminal to terminal ªbº of relay.
Connect battery negative (±) terminal ªaº of relay.
Check continuity between terminal ªcº and ªdº.
If there is no continuity when relay is connected to the battery,
replace relay.
YH4
GRAND
VITARA
HEATER AND VENTILATION 1A-9
1. LO
2. M1
3. M2
4. HI
BLOWER MOTOR RESISTOR
REMOVAL
1) Disconnect negative (±) cable (2) at battery (1).
2) Disable air bag system, if equipped. Refer to DISABLING AIR
BAG SYSTEM in Section 10B.
3) Open glove box (1), then remove screw (2).
4) Remove glove box.
5) Disconnect blower motor resistor (1) at coupler.
6) Remove heater blower resistor (1) by removing its fastening
screw (2).
INSPECTION
Measure each terminal-to-terminal resistance on resistor.
Resistance H-LO: Approx. 2.0
H-M1: Approx. 1.0
H-M2: Approx. 0.4
If measured resistance is incorrect, replace heater blower resistor.
INSTALLATION
1) Install heater blower resistor with screws.
2) Enable air bag system, if equipped. Refer to ENABLING AIR
BAG SYSTEM in Section 10B.