power mode SUZUKI GRAND VITARA 2000 2.G Service User Guide

YH4
GRAND
VITARA
7B1-4 AUTOMATIC TRANSMISSION (4 A / T)
ItemSpecifications
Torque
conver-
terType
Stall torque ratio3-element, 1-step, 2-phase type (with TCC (lock-up)
mechanism)
2.4 (G16 engine) 2.0 (J20 engine) 1.9 (H25 engine)
Oil
pumpType
Drive systemTrochoid type oil pump
Engine driven
TypeForward 4-step, reverse 1-step planetary gear type
Shift position
ªPº range Gear in neutral, output shaft fixed,engine start
ªRº range Reverse
ªNº range Gear in neutral, engine start
ªDº range Forward 1st
2nd
3rd
4th (O / D)
(O / D ON) automatic gear change
ªDº range Forward 1st
2nd
3rd
(O / D OFF) automatic gear change
ª2º range (Normal mode) Forward 1st
2nd  3rd automatic gear
change
(Power mode) Forward 2nd  3rd automatic gear
change and fixed at 2nd gear
ªLº range Forward 1st  2nd  3rd reduction, and fixed at 1st gear
GearEngine typeG16 engineJ20 / H25 engines
change
device1st (low gear)2.8262.826device2nd (second gear)1.4931.493
Gear3rd (top gear)1.0001.000Gear
ratio4th (overdrive
4th gear)0.7300.689
Reverse (reverse
Reverse gear)2.7032.703
Control elements
Wet type multi-disc clutch 3 sets. . . . . . . . . .
Wet type multi-disc brake 4 sets. . . . . . . . . .
One-way clutch 3 sets. . . . . . . . . . . . . . . . . . .
TransferHi: 1.000 Lo: 1.816 (4WD model only)
Final gear reduction
ratio (Differential)5.125 (G16 engine) 4.875 (J20 / H25 engines)
Lubrica-
tionLubrication systemForce feed system by oil pump
CoolingCooling systemRadiator assisted cooling (water-cooled)
Fluid usedAn equivalent of DEXRON
III

YH4
GRAND
VITARA
Gear Shift Diagram
TCC Lock-up Diagram
Vehicle speedUpshift
Downshift
Throttle valve opening
Vehicle speed
Throttle valve opening
TCC ON
TCC OFF 4th
gear
3rd
gear(km / h)
(km / h)
AUTOMATIC TRANSMISSION (4 A / T) 7B1-11
AUTOMATIC GEAR SHIFT DIAGRAM
Automatic shift schedule as a result of shift control is shown below. In case that select lever is shifted to L at a higher
than 52 km / h or 33 mile / h speed for G16 engine (45 km / h or 28 mile / h for J20 engine, 55 km / h or 34 mile / h for
H25 engine), 2nd or 3rd gear is operated and then down shifts to 1st at a speed lower than that. No up shift is
available in L.
The same as, the select lever is shifted to 2 at a higher than 102 km/h (64 mile/h) speed for G16/J20 engines (105
km / h or 65 mile / h for H25 engine), 3rd gear is operated and then down shifts to 2nd at a speed lower than that.
Power Mode For G16 EngineUnit: km / h
(mile/h)
Shift
Throttle opening
1
22
33
44
33
22
1
Full throttle49
(30)94
(58)153
(95)124
(77)85
(53)43
(27)
Closed throttle18
(11)36
(23)48
(30)40
(25)29
(18)7
(4)

YH4
GRAND
VITARA
Gear Shift Diagram
TCC Lock-up Diagram
Throttle valve opening
Vehicle speedUpshift
Downshift
Throttle valve opening
Vehicle speed3rd
gear
4th
gear
TCC ON
TCC OFF(km / h)
(km / h)
AUTOMATIC TRANSMISSION (4 A / T) 7B1-13
Power Mode For J20 EngineUnit: km / h
(mile/h)
Shift
Throttle opening
1
22
33
44
33
22
1
Full throttle50
(31)98
(61)Ð135
(84)84
(52)46
(29)
Closed throttle18
(11)33
(21)50
(31)44
(27)26
(16)8
(5)

YH4
GRAND
VITARA
Gear Shift Diagram
TCC Lock-up Diagram
Throttle valve opening
Vehicle speedUpshift
Downshift
Throttle valve opening
Vehicle speedTCC ON
TCC OFF 3rd
gear
4th
gear(km / h)
(km / h)
AUTOMATIC TRANSMISSION (4 A / T) 7B1-15
Power Mode For H25 EngineUnit: km / h
(mile/h)
Shift
Throttle opening
1
22
33
44
33
22
1
Full throttle48
(30)99
(62)160
(99)150
(93)90
(56)41
(25)
Closed throttle16
(10)30
(19)45
(28)38
(24)24
(15)7
(4)

YH4
GRAND
VITARA
AUTOMATIC TRANSMISSION (4 A / T) 7B1-23
User name: Model: VIN:
Date of issue: Date of Reg: Date of problem: Mileage:
PROBLEM SYMPTOMS
Engine does not start
Vehicle does not move
(forward, rearward)
No lock-up (TCC clutch operation)
Shift point too high or too low
Excessive gear change shockEngine stops
Transmission does not shift
(1st, 2nd, 3rd, 4th, Rev) gear
Automatic shift does not occur
Transmission slipping in
(1st, 2nd, 3rd, 4th, Rev) gear
Other:
VEHICLE/ ENVIRONMENTAL CONDITION WHEN PROBLEM OCCURS
Environmental Condition
Weather
Temperature
Frequency
RoadFair/Cloudy/Rain/Snow/Always/Other ( )
Hot/Warm/Cool/Cold/(
C
F)/Always
Always/Sometimes/( times/ day, month)/Only Once
Urban/Suburb/Highway/Mountainous (uphill/downhill)/Paved road/Gravel/
Other( )
Vehicle Condition
Engine
Brake
O/D cut switch
P/N change switch
(P,R,N,D,2,L) range/(
) range
Cold/Warming up phase/Warmed up
At stop/During driving (constant speed/accelerating/decelerating/
right hand corner/left hand corner)/Other ( )/Speed ( km/h mile/h)
Speed( r/min)/Throttle opening(idle/about %/full)
Apply/Not apply
ON/OFF
Power/Normal
Malfunction indicator lamp condition
Always ON Sometimes ON Always OFF Good condition
Diagnostic trouble
codeFirst check : No codeMalfunction code( )
Second check : No code Malfunction code( )
Transmission range
Transmission temp.
Vehicle
CUSTOMER PROBLEM INSPECTION FORM (EXAMPLE)
NOTE:
The above form is a standard sample. It should be modified according to conditions characteristic of each
market.

YH4
GRAND
VITARA
AUTOMATIC TRANSMISSION (4 A / T) 7B1-33
O / D cut
switchOFF ON
VoltageBattery
voltage0 V
DIAGNOSTIC FLOW TABLE A-2 (NO GEAR SHIFT TO O / D)
SYSTEM DESCRIPTION
PCM does not shift to O / D gear under any of the following conditions.

O / D cut switch: ON

4WD LOW switch: ON

Cruise control module: O / D OFF command signal is output (if equipped).

ECT: ECT < 30C (86F)
TROUBLESHOOTING
WARNING:

When performing a road test, select a place where there is no traffic or possibility of a traffic accident
and very careful during testing to avoid occurrence of an accident.

Road test should be carried out with 2 person, a driver and tester, on a level road.
STEPACTIONYESNO
1Was ªAUTOMATIC TRANSMISSION
DIAGNOSTIC FLOW TABLEº performed?Go to Step 2.Go to ªAUTOMATIC
TRANSMISSION
DIAGNOSTIC FLOW
TABLEº.
2ECT check:
(1) Warm up engine to normal operating
temperature.
(2) Check ECT using scan tool.
Is ECT more than 30C (86F)?Go to Step 3.Faulty ECT sensor,
its circuit or engine
cooling system.
If OK, substitute a known-
good PCM and recheck.
3Perform running test under the following
conditions and check voltage between
C51-1-2 (G16 / J20 engines) or C51-1-6 (H25
engine) terminal of PCM coupler and ground,
C51-1-1 terminal of PCM coupler and ground.

O / D cut switch OFF (ªO / D OFFº lamp OFF).

Normal mode in ªDº range.

Transfer ª2Hº position.

Cruise control is not operated (if equipped).

Drive vehicle with 4th gear condition
referring to ªGear shift diagramº in this
section.
Is each voltage about 0 V?Faulty shift solenoid
valve, its circuit or
transmission.ªGº wire or ªG / Rº wire
shorted to power circuit.
If OK, go to Step 4.
4O / D cut switch signal inspection:
(1) With ignition switch ON, check voltage
between E61-33 (G16 / J20 engines) or
E61-14 (H25 engine) terminal of PCM
coupler and ground.
Is the result as specified?Go to Step 5.Faulty O / D cut switch or
its circuit.
If OK, substitute a known-
good PCM and recheck.

YH4
GRAND
VITARA
1. 4WD switch
2. Transfer
3. Blank
4. Blank
5. ECM or PCM
6. Glove box7. Air pump assembly
8. Actuator
9. Axle lock clutch
10. Free axle hub
11. 4WD indicator lamp
7E-2 DIFFERENTIAL (FRONT)
4WD CONTROL SYSTEM
When the 4WD switch is turned ON by shifting the transfer shift lever, ECM (PCM) (G16 and J20 engine models)
or 4WD controller (H25 engine model) actuates (energizes) the air pump assembly. Then positive pressure is sent
from the air pump assembly to the actuator installed to the differential case and causes the axle lock clutch and
the free axle hub in the differential case to be engaged, resulting in the 4WD mode. Only when running in the 4WD
mode, front axles are joined to differential case, and they become free when 2WD mode is used (or when transfer
shift lever is shifted to N position), thereby reducing the power loss.

YH4
GRAND
VITARA
8D-4 WINDOWS, MIRRORS, SECURITY AND LOCKS
LH steering vehicleRH steering vehicle
Type 1
Type 2
Power Door Lock Controller (Canvas Top Model)
Power Door Lock SwitchBack Door Actuator
(except Canvas Top
Model)
Rear Door Actuator
Front Door Actuator
Fuse box
Power Door Lock and Keyless Entry (if equipped)
Controller (Hard Top Model)Keyless Entry Transmitter
(If keyless entry is equipped)
The illustration shows LH steering vehicle.
And RH steering vehicle is symmetrical.
POWER DOOR LOCK AND KEYLESS ENTRY (IF EQUIPPED) SYSTEM

YH4
GRAND
VITARA
WINDOWS, MIRRORS, SECURITY AND LOCKS 8D-5
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).
WINDSHIELD WIPER AND WASHER
FRONT WIPER AND WASHER
REAR WIPER AND WASHER (IF EQUIPPED)
TroublePossible causeCorrection
Wiper malfunctions
ªWIPER / WASHERº fuse blown (Hard Top
Model)
ªWIPº fuse blown (Canvas Top Model)

Wiper motor faulty

Wiper switch faulty

Wiring or grounding faultyReplace fuse to check for short
Replace motor
Replace switch
Repair
Washer malfunctions
Washer hose or nozzle clogged

ªWIPER / WASHERº fuse blown (Hard Top
Model)
ªWIPº fuse blown (Canvas Top Model)

Washer motor faulty

Washer switch faulty

Wiring faultyClean or repair clogged hose or
nozzle
Replace fuse to check for short
Replace motor
Replace switch
Repair
REAR WINDOW DEFOGGER (IF EQUIPPED)
TroublePossible causeCorrection
Defogger does not work
ªREAR DEFGº fuse blown

Defogger switch faulty

Defogger heat wire faulty

Wiring or grounding faultyReplace fuse to check for short
Replace switch
Repair heat wire
Repair
POWER WINDOW CONTROL SYSTEM
TroublePossible causeCorrection
All power windows do not
operate
ªPOWER WINDOWº fuse blown (Hard Top
Model)
ªP / Wº fuse blown (Canvas Top Model)

Ignition switch faulty

Wiring or grounding faultyReplace fuse to check for short
Replace switch
Repair
Only one power window
does not operate
Power window switch (main or sub) faulty

Power window motor faulty

Window lock switch faulty

Wiring or grounding faultyReplace switch
Replace motor
Replace switch
Repair

YH4
GRAND
VITARA
8D-6 WINDOWS, MIRRORS, SECURITY AND LOCKS
POWER DOOR LOCK SYSTEM (IF KEYLESS ENTRY IS NOT EQUIPPED)
TroublePossible causeCorrection
All power doors are not
locked / unlocked by both
driver side door key
switch and power door
lock switch
ªDOOR LOCKº fuse blown (Hard Top
Model)
ªD / Lº fuse blown (Canvas Top Model)

Power door controller faulty

Wiring or grounding faultyReplace fuse to check for short
Replace controller
Repair
All power doors are not
locked / unlocked by only
power door lock switch
Power door lock switch faulty

Wiring or grounding faultyReplace switch
Repair
All power doors are not
locked / unlocked by only
driver side door key
switch
Driver side door key switch faulty

Wiring or grounding faultyReplace switch
Repair
Only one power door is not
locked / unlocked
Wiring or coupler faulty

Actuator (door lock motor) faultyRepair
Replace actuator