2001 SUZUKI GRAND VITARA oil pressure

YH4
GRAND
VITARA
DIFFERENTIAL (FRONT) 7E-17
09951-16080
Bearing installer09951-26010
Bush remover plate09918-18110
Air pressure regulator
09367-04002
3-way joint
UNIT REPAIR
Refer to the same section of UNIT REPAIR MANUAL mentioned in FOREWORD of this manual.
TIGHTENING TORQUE SPECIFICATIONS
FasteningportionTightening torqueFastening ortionN.mKg-mlb-ft
Differential oil filler / level plug232.317.0
Differential oil drain plug232.317.0
Differential mounting front bolts858.561.5
Differential mounting bracket bolts505.036.5
Front drive shaft flange bolts505.036.5
Propeller shaft flange bolts505.036.5
Pump assembly bolts131.39.5
REQUIRED SERVICE MATERIAL
MATERIALRECOMMENDED
SUZUKI PRODUCTUSE
SealantSUZUKI BOND NO. 1215
(99000-31110)Front differential drain plug
SPECIAL TOOLS

YH4
GRAND
VITARA
7F
DIFFERENTIAL (REAR) 7F-1
The differential assembly is decisive in that the drive
power is concentrated there. Therefore, use of genu-
ine parts and specified torque is compulsory. Further,
because of sliding tooth meshing with high pressure
between bevel pinion and gear, it is mandatory to lu-
bricate them by hypoid gear oil.
SECTION 7F
DIFFERENTIAL (REAR)
CONTENTS
GENERAL DESCRIPTION7F-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DIAGNOSIS7F-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE7F-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance Service7F-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dismounting7F-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remounting7F-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UNIT REPAIR7F-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TIGHTENING TORQUE SPECIFICATIONS7F-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REQUIRED SERVICE MATERIALS7F-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GENERAL DESCRIPTION
The differential assembly using a hypoid bevel pinion
and gear is installed to the rear axle. It is set in the con-
ventional type axle housing.
The reduction ratio and differential case vary depend-
ing on transmission or engine type.

YH4
GRAND
VITARA
8C
INSTRUMENTATION / DRIVER INFORMATION 8C-1
GENERAL DESCRIPTION8C- 2 . . . . . . . . . . . . . .
Cautions in Servicing 8C- 2. . . . . . . . . . . . . . . . .
Symbols and Marks 8C- 2. . . . . . . . . . . . . . . . . . .
Wiring Color Symbols 8C- 2. . . . . . . . . . . . . . . . .
Abbreviations 8C- 2. . . . . . . . . . . . . . . . . . . . . . . .
Joint Connector 8C- 2. . . . . . . . . . . . . . . . . . . . . .
Fuse Box and Relay 8C- 2. . . . . . . . . . . . . . . . . .
Power Supply Diagram 8C- 2. . . . . . . . . . . . . . . .
Combination Meter 8C- 2. . . . . . . . . . . . . . . . . . .
DIAGNOSIS8C- 4 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speedometer and VSS 8C- 4. . . . . . . . . . . . . . . .
Fuel Meter / Fuel Gauge Unit 8C- 4. . . . . . . . . . . .
Engine Coolant Temp. (ECT) Meter and
Sensor 8C- 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pressure Light 8C- 4. . . . . . . . . . . . . . . . . . . .
Brake and Parking Brake Warning
Light 8C- 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Light Remainder Warning Buzzer 8C- 5. . . . . . . Seat Belt Warning Light (If Equipped) 8C- 5. . .
Ignition Key Remainder Warning
Buzzer (If Equipped) 8C- 5. . . . . . . . . . . . . . . . .
Cigarette Lighter and Accessory Socket 8C- 5.
ON-VEHICLE SERVICE8C- 6 . . . . . . . . . . . . . . . .
Ignition (Main) Switch 8C- 6. . . . . . . . . . . . . . . . .
Combination Meter 8C- 7. . . . . . . . . . . . . . . . . . .
Speedometer and VSS 8C- 8. . . . . . . . . . . . . . . .
Fuel Meter / Fuel Gauge Unit 8C- 9. . . . . . . . . . . .
Engine Coolant Temp. (ECT) Meter and
Sensor 8C-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pressure Light 8C-11. . . . . . . . . . . . . . . . . . . .
Brake and Parking Brake Warning
Light 8C-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Key Remainder (If Equipped) /
Light Remainder Warning Buzzer 8C-12. . . . . .
Door Switch 8C-13. . . . . . . . . . . . . . . . . . . . . . . . .
Seat Belt Warning Light (If Equipped) 8C-13. . .
SECTION 8C
INSTRUMENTATION/DRIVER INFORMATION
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

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
1. To door switch (driver side) B / Bl
2. To transmission range switch G / Bl
(A / T vehicle only, if equipped) L
3. To transmission range switch G / O
(A / T vehicle only, if equipped) 2
4. To transmission range switch Y / G
(A / T vehicle only, if equipped) D
5. To transmission range switch O / Bl
(A / T vehicle only, if equipped) N
6. To transmission range switch O / G
(A / T vehicle only, if equipped) P
7. To transmission range switch R
(A / T vehicle only, if equipped) R
8. To ground B
9. To PCM (A / T vehicle only) W / B
10. To ECT sensor Y / W
11. To fuel level gauge Bl / W
12. To ground B / Y
13. To combination switch G / Y
NOTE:
Terminal arrangement of coupler viewed from harness side.
Coupler A Coupler B Coupler C
Coupler A Coupler B Coupler C
1. Blank ÐÐ
2. Blank ÐÐ
3. To ignition switch B / W
4. Blank ÐÐ
5. To ABS control module Bl / O
(if equipped)
6. To PCM (A / T vehicle only) Gr / Bl
7. To ABS control module Br
(if equipped)
8. To VSS Bl / Y
9. To combination switch G / R
10. To SDM (if equipped) Y / G or Bl
11. To main fuse W / Bl
12. To fuse box W
13. To combination switch R
14. To ECM (PCM for A / T vehicle) V
(if equipped)
15. To ECM (PCM for A / T vehicle) V / Y
16. To ECM (PCM for A / T vehicle) O / B
(if equipped)1. To ground B
2. To ECM (PCM for A / T vehicle) Br
3. To ignition switch (if equipped) V / R
4. To brake fluid level switch R / B
5. To parking brake switch V
6. To seat belt switch (if equipped) Gr / R
7. To generator W / R
8. To oil pressure switch Y / B
9. To combination switch R / Y
10. To ignition switch (if equipped) Bl / R or CHECK
or ENGINE
or ABSif equipped
if equippedif equipped
INSTRUMENTATION / DRIVER INFORMATION 8C-3

YH4
GRAND
VITARA
8C-4 INSTRUMENTATION / DRIVER INFORMATION
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).
SPEEDOMETER AND VSS
TroublePossible CauseCorrection
Speedometer shows no
operation
ªIG / METERº fuse blown (Hard Top
Model)
ªIGº fuse blown (Canvas Top Model)

VSS faulty

Printed plate in combination meter
faulty

Speedometer faulty

Wiring or grounding faultyReplace fuse to check for short
Replace VSS
Replace printed plate
Replace speedometer
Repair
FUEL METER / FUEL GAUGE UNIT
TroublePossible CauseCorrection
Fuel meter shows no
operation
ªIG / METERº fuse blown (Hard Top
Model)
ªIGº fuse blown (Canvas Top Model)

Fuel gauge unit faulty

Printed plate in combination meter
faulty

Fuel meter faulty

Wiring or grounding faultyReplace fuse to check for short
Replace fuel gauge unit
Replace printed plate
Replace fuel meter
Repair
ENGINE COOLANT TEMP. (ECT) METER AND SENSOR
TroublePossible CauseCorrection
Engine coolant temp.
meter shows no operation
ªIG / METERº fuse blown (Hard Top
Model)
ªIGº fuse blown (Canvas Top Model)

ECT meter faulty

Printed plate in combination meter
faulty

ECT sensor faulty

Wiring or grounding faultyReplace fuse to check for short
Replace ECT meter
Replace printed plate
Replace ECT sensor
Repair
OIL PRESSURE LIGHT
TroublePossible CauseCorrection
Oil pressure warning light
does not light up
Bulb in combination meter blown

ªIG / METERº fuse blown (Hard Top
Model)
ªIGº fuse blown (Canvas Top Model)

Printed plate in combination meter
faulty

Oil pressure switch faulty

Wiring or grounding faultyReplace bulb
Replace fuse to check for short
Replace printed plate
Replace oil pressure switch
Repair

YH4
GRAND
VITARA
G16
J20
H25
1. Oil pressure switch
INSTRUMENTATION / DRIVER INFORMATION 8C-11
INSPECTION
1) Warm up ECT sensor (1) observing resistance between sensor
terminal (2) and sensor unit (1). Resistance should be de-
creased with increase of its temperature.
2) Check resistance between sensor terminal (2) and sensor unit
(1) shown below. If check result is not as specified, replace sen-
sor.
Temperature
Resistance
50
C (122
F)136 ± 216

OIL PRESSURE LIGHT
OIL PRESSURE SWITCH
REMOVAL AND INSTALLATION
Refer to OIL PRESSURE CHECK in Section 6A1 (for G16), Section
6A2 (for H25), and Section 6A4 (for J20) of this manual for details.
INSPECTION
1) Disconnect oil pressure switch (1) lead wire.
2) Check for continuity between oil pressure switch terminal (2)
and cylinder block (3) as shown.
During Engine Running
No continuity
At Engine StopContinuity
If check result is not as specified, replace oil pressure switch (1).

YH4
GRAND
VITARA
1. Heat wire
2. Tin foil
3. Tester probe
1. VoltmeterAt center
Good
Broken
wire
broken
wire
8D-16 WINDOWS, MIRRORS, SECURITY AND LOCKS
REAR WINDOW DEFOGGER (IF EQUIPPED)
INSPECTION
DEFOGGER SWITCH
Check for continuity between terminals at each switch position as
shown below.
If check result is not as specified, replace switch.
DEFOGGER WIRE
NOTE:

When cleaning rear window glass, use a dry cloth to wipe it
along wire direction.

When cleaning glass, do not use detergent or abrasive-con-
taining glass cleaner.

When measuring wire voltage, use a tester with negative
probe wrapped with a tin foil which should be held down on
wire by finger pressure.
1) Checking wire damage
a. Turn main switch ON.
b. Turn defogger switch ON.
c. Use a voltmeter to check voltage at the center of each heat
wire, as shown.
Voltage
Criteria
Approx. 5 VGood (No break in wire)
Approx. 10 V or 0 VBroken wire
If measured voltage is 10 V, wire must be damaged between
its center and positive end. If voltage is zero, wire must be
damaged between its center and ground.