automatskrzynbiegow.pdf

AUTOMATIC TRANSMISSION

7B1-1

SECTION 7B1

AUTOMATIC TRANSMISSION (4 A/T)

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

authorized SUZUKI dealer. Refer to “Air Bag System Components and Wiring Location View” un-

der “General Description” in air bag system section in order to confirm whether you are perform-

ing service on or near the air bag system components or wiring. Please observe all WARNINGS

and “Service Precautions” under “On-Vehicle Service” in air bag system section before perform-

ing 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. Ei-

ther 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 “LOCK” position and the negative cable is disconnected from the battery. Otherwise, the sys-

tem may be activated by reserve energy in the Sensing and Diagnostic Module (SDM).

CONTENTS

GENERAL DESCRIPTION

. . . . . . . . . . . . . . . .

7B1- 3

Automatic Transmission Basic Check

. . . . .

7B1-31

Trouble Diagnosis Table

. . . . . . . . . . . . . . . .

7B1-32

ELECTRONIC SHIFT CONTROL SYSTEM

. .

7B1- 8

Road Test

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Manual Road Test

7B1-35

TRANSMISSION CONTROL MODULE

(TCM)

. . . . . . . . . . . . . . . . . . . . . .

7B1-36

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fail Safe Function

7B1- 9

Stall Test

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Time Lag Test

7B1-36

. . . . . . . . . . . . . . . . . . . . . .

Automatic Gear Shift Diagram

(for 1.6

7B1-11

. . . . . . . . . . . . . . . . . . . . . . . . .

Line Pressure Test

7B1-37

. . . . . . . . . . . . . . . . . . . . .

7B1-38

. . . . . . . . . . . . . . . . . . . . . .

Automatic Gear Shift Diagram

(for 1.8

model)

7B1-12

Engine Brake Test

. . . . . . . . . . . . . . . . . . . . .

7B1-39

7B1

“P” Range Test

. . . . . . . . . . . . . . . . . . . . . . . .

Table A-1 “O/D OFF” Lamp Circuit Check

(Lamp Does Not Come “ON” at Ignition

Switch On (But Engine at Stop))

7B1-39

model)

. . . . . . . . . . . . . . . . . . . . . .

7B1-14

BRAKE INTERLOCK SYSTEM (if equipped)

7B1-16

DIAGNOSIS

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

General Description

7B1-18

. . . . . . . .

Table A-2 “O/D OFF” Lamp Circuit Check

(Lamp Comes On Steadily)

7B1-40

. . . . . . . . . . . . . . . . . . . .

On-Board Diagnostic System

7B1-18

. . . . . . . . . . . .

7B1-19

. . . . . . . . . . . .

Table A-3 “O/D OFF” Lamp Circuit Check

(Lamp Blinks or Repeats Bright/Dim

Continuously at Ignition Switch On)

7B1-41

PRECAUTION IN DIAGNOSING TROUBLE

7B1-21

AUTOMATIC TRANSMISSION DIAGNOSTIC

FLOW TABLE

. . . . .

Table A-4 TCM Power and Ground Circuit

Check

7B1-42

. . . . . . . . . . . . . . . . . . . . . . . . . . .

Customer Problem Inspection Form

(Example)

7B1-22

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DTC P0705/DTC No.34 Transmission

Range Sensor Circuit Malfunction

7B1-43

. . . . . . . . . . . . . . . . . . . . . . . . . . .

Malfunction Indicator Lamp (MIL) Check

7B1-24

. .

7B1-25

. . . . . . .

DTC P0710/DTC No.36 or 38 Transmission

Temperature Sensor Circuit Malfunction

7B1-44

“O/D OFF” Lamp Check

. . . . . . . . . . . . . . . .

Diagnostic Trouble Code (DTC) Check

7B1-25

. . . .

Diagnostic Trouble Code (DTC) Clearance

7B1-25

7B1-46

7B1-27

DTC P0715/DTC No.37 Input/Turbine

Speed Sensor Circuit Malfunction

Diagnostic Trouble Code (DTC) Table

. . . .

7B1-28

Visual Inspection

. . . . . . . . . . . . . . . . . . . . . . .

7B1-30

. . . . . . .

7B1-47

7B1-2

AUTOMATIC TRANSMISSION

DTC P0720/DTC No.31 Output Speed

Sensor Circuit Malfunction

VEHICLE SPEED SENSOR

(VSS, SPEEDOMETER DRIVEN GEAR)

. . . . . . . . . . . . .

DTC P0725/DTC No.35 Engine Speed

Input Circuit Malfunction

7B1-49

. . .

7B1- 72

THROTTLE POSITION SENSOR

. . . . . . . . .

7B1- 72

. . . . . . . . . . . . . . .

DTC P0741/DTC No.29 TCC System

Performance or Stuck Off

7B1-51

ENGINE COOLANT TEMPERATURE

SENSOR

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7B1- 72

. . . . . . . . . . . . . .

DTC P0743/DTC No.25 or 26 TCC System

electrical

7B1-52

O/D OFF SWITCH

. . . . . . . . . . . . . . . . . . . . . .

7B1- 73

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DTC P0745/DTC No.41 or 42 Pressure

Control Solenoid Malfunction

7B1-53

MODE SELECT SWITCH

. . . . . . . . . . . . . . . .

7B1- 73

SOLENOID VALVES

. . . . . . . . . . . . . . . . . . . . .

7B1- 73

. . . . . . . . . . .

DTC P0751/DTC No.17 Shift Solenoid-A

Performance or Stuck Off

7B1-55

TRANSMISSION CONTROL MODULE

(TCM)

. . . . . . . . . . . . . .

DTC P0756/DTC No.28 Shift Solenoid-B

Performance or Stuck Off

7B1-56

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7B1- 76

A/T FLUID TEMPERATURE SENSOR

. . . . .

7B1- 77

. . . . . . . . . . . . . .

DTC P0753/DTC No.21 or 22 Shift

Solenoid-A Electrical

7B1-56

DIFFERENTIAL SIDE OIL SEAL

. . . . . . . . . .

7B1- 78

. . . . . . . . . . . . . . . . . .

DTC P0758/DTC No.23 or 24 Shift

Solenoid-B Electrical

7B1-57

SHIFT LOCK SOLENOID (If equipped)

. . . . .

7B1- 78

INTERLOCK CABLE (If equipped)

. . . . . . . . .

7B1- 79

. . . . . . . . . . . . . . . . . .

DTC P1700/DTC No.32 or 33 Throttle

Position Signal Circuit

7B1-57

AUTOMATIC TRANSMISSION ASSEMBLY

7B1- 81

. . . . . . . . . . . . . . . . .

DTC P1702/DTC No.52 Internal Control

Module Memory

7B1-59

UNIT REPAIR

. . . . . . . . . . . . . . . . . . . . . . . . . .

7B1- 88

AUTOMATIC TRANSMISSION ASSEMBLY

7B1- 88

. . . . . . . . . . . . . . . . . . . . . .

DTC P1705/DTC No.51 Engine Coolant

Temperature Signal Circuit

7B1-61

Unit Disassembly

. . . . . . . . . . . . . . . . . . . . .

7B1- 89

. . . . . . . . . . . . .

DTC P1895/DTC No.27 Torque Reduction

Signal Circuit

7B1-62

SUBASSEMBLY

. . . . . . . . . . . . . . . . . . . . . . . .

7B1- 98

Oil Pump

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Forward Clutch

7B1- 98

. . . . . . . . . . . . . . . . . . . . . . . . .

Inspection of TCM and its Circuits

7B1-63

. . . . . . . . . . . . . . . . . . . . . . .

Overdrive Clutch Coast Clutch

7B1-101

. . . . . . . . . .

Front Planetary Ring Gear (F1),

Rear Planetary Ring Gear (F0)

7B1-106

. . . . . . . .

7B1-64

ON-VEHICLE SERVICE

. . . . . . . . . . . . . . . . . .

MAINTENANCE SERVICE

7B1-67

. . . . . . . .

7B1-112

. . . . . . . . . . . . . . . .

7B1-67

Reverse Clutch

. . . . . . . . . . . . . . . . . . . . . . .

Counter Drive Gear

7B1-119

Fluid Level

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Changing Fluid

7B1-67

. . . . . . . . . . . . . . . . . . .

7B1-125

. . . . . . . . . . . . . . . . . . . . . . . .

Oil Cooler Hoses

7B1-68

Counter Driven Gear

. . . . . . . . . . . . . . . . . .

7B1-128

. . . . . . . . . . . . . . . . . . . . . . .

7B1-68

Valve Body

. . . . . . . . . . . . . . . . . . . . . . . . . . .

7B1-131

SELECT LEVER

. . . . . . . . . . . . . . . . . . . . . . . . .

7B1-69

Differential

. . . . . . . . . . . . . . . . . . . . . . . . . . .

Transmission Housing

7B1-140

SELECT CABLE

. . . . . . . . . . . . . . . . . . . . . . . . .

TRANSMISSION RANGE SENSOR

(SHIFT SWITCH)

7B1-70

. . . . . . . . . . . . . . . . .

7B1-143

Transmission Case

. . . . . . . . . . . . . . . . . . . .

7B1-144

. . . . . . . . . . . . . . . . . . . . . . . .

OUTPUT SPEED SENSOR (A/T VSS)

7B1-70

Unit Assembly

. . . . . . . . . . . . . . . . . . . . . . . .

7B1-145

. . . . . .

7B1-71

TIGHTENING TORQUE

. . . . . . . . . . . . . . . . . .

7B1-156

INPUT/TURBINE SPEED SENSOR

(FORWARD CLUTCH CYLINDER

REVOLUTION SENSOR)

SPECIAL TOOL

. . . . . . . . . . . . . . . . . . . . . . . .

7B1-157

. . . . . . . . . . . . . . . . .

7B1-72

REQUIRED SERVICE MATERIAL

. . . . . . . .

7B1-159

AUTOMATIC TRANSMISSION

7B1-3

GENERAL DESCRIPTION

This automatic transmission is a full automatic type with 3-speed plus overdrive (O/D).

The torque converter is a 3-element, 1-step and 2-phase type and is equipped with an electronically controlled

lock-up mechanism. The gear shift device consists of 2 sets of planetary gear units, 4 disc type clutches, a disc

type brake, a band type brake and 2 one-way clutches. The gear shift is done by selecting one of 6 positions (“P”,

“R”, “N”, “D”, “2” and “L”) by means of the select lever installed on the floor. On the shift knob, there is an overdrive

(O/D) cut switch which allows shift-up to the overdrive mode and shift-down from the overdrive mode. Also, by

using the mode selector switch located on the parking brake lever cover, it is possible to select the gear change

timing (and gear) of 3 modes, normal, power and snow.

7B1-4

AUTOMATIC TRANSMISSION

1. Torque converter clutch (TCC)

2. 2nd and 4th brake band

3. Reverse clutch

4. One-way clutch No.1

5. 1st and reverse brake

6. Front large planetary pinion

7. Rear planetary pinion

8. Rear planetary ring gear

9. One-way clutch No.0

10. Forward clutch

11. Coast clutch

12. Overdrive clutch

13. Planetary sun gear

14. Front small planetary pinion

15. Front planetary ring gear

16. Counter drive gear (Reduction gear)

17. Parking lock gear

18. Counter driven gear (Reduction gear)

19. Oil pump

20. Torque converter

21. Drive plate

22. Input shaft

AUTOMATIC TRANSMISSION

7B1-5

Item

Specifications

Torque

converter

Type

Stall torque ratio

3-element, 1-step, 2-phase type (with TCC (lock-up) mechanism)

More than 2.0

Type

Drive system

Internal gear type oil pump

Engine driven

Oil pump

Type

Forward 4-step, reverse 1-step planetary gear type

“P” range

Gear in neutral, output shaft fixed,

engine start

Reverse

Gear in neutral, engine start

Forward 1st

“R” range

“N” range

“D” range (O/D ON)

POWER or NORMAL

mode

“D” range (O/D ON)

SNOW mode

“D” range (O/D OFF)

POWER or NORMAL

mode

“D” range (O/D OFF)

SNOW mode

“2” range POWER or

NORMAL mode

“2” range SNOW mode

4th

(O/D) automatic gear change

2nd

3rd

Forward 2nd

4th (O/D)

automatic gear change

Forward 1st

3rd

2nd

3rd

4th

Shift position

automatic gear change

Forward 2nd

4th (O/D)

automatic gear change

Forward 1st

3rd

2nd

3rd

4th

automatic gear change

Forward 2nd

Gear

change

device

3rd reduction, and

fixed at 2nd gear

Forward 1st

“L” range

2nd reduction, and

fixed at 1st gear

1st

2.807

Number of teeth

Front sun gear

: 26

2nd

1.479

Rear sun gear

: 35

Front large pinion gear

: 28

Gear

3rd

1.000

Front small pinion gear

Front small inion gear

: 19

ratio

4th (overdrive gear)

0.734

Rear pinion gear

: 19

Front internal gear

: 98

Reverse (reverse

gear)

2.769

Rear internal gear

: 73

Wet type multi-disc clutch

. . . . . . .

4 sets

Band type brake

. . . . . . . . . . . . . . .

Wet type multi-disc brake

1 set

Control elements

. . . . . . .

1 set

One-way clutch

. . . . . . . . . . . . . . . .

2 sets

Reduction gear ratio

1.018

Final gear reduction ratio

3.783

Lubrica-

tion

Lubrication system

Force feed system by oil pump

Cooling

Cooling system

Radiator assisted cooling (water-cooled)

Fluid used

DEXRON

- III or DEXRON

- II E

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