Suzuki Grand Vitara JB416 / JB420 / JB419. Service manual - part 303

5A-3 Automatic Transmission/Transaxle: 

General Description

Automatic Transmission Description

S6JB0A5101001

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 3 sets of planetary gear units,3 disc type clutches, 4 disc type brakes 
and 3 one-way clutches. The gear shift is done by selecting one of 7 positions (“P”, “R”, “N”, “D”, “3”, “2” and “L”) by 
means of the select lever installed on the floor. Also, by using the P/N mode switch located on the console box, it is 
possible to select the gear change timing of 2 modes, normal and power.

1

13

14

16

15

19

17

18

20

2

3

4

5

6

7

8

9

10

11

12

I5JB0A510004-01

1. Torque converter clutch (TCC)

8. Second coast brake

15. O/D one-way clutch

2. Torque converter

9. Second brake

16. Forward clutch input shaft

3. O/D clutch

10. Reverse brake

17. One-way clutch No.1

4. O/D brake

11. Front planetary gear

18. One-way clutch No.2

5. O/D planetary gear

12. Rear planetary gear

19. Intermediate shaft

6. Forward clutch

13. O/D input shaft

20. Output shaft

7. Direct clutch

14. Oil pump

Automatic Transmission/Transaxle:  5A-4

Item

Specifications

Torque 
converter

Type

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

Stall torque ratio

2.05

Oil pump

Type

Trochoid type oil pump

Drive system

Engine driven

Gear 
change 
device

Type

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

Shift position

“P” range

Gear in neutral, output shaft fixed, engine start

“R” range

Reverse

“N” range

Gear in neutral, engine start

“D” range

Forward 1st 

↔ 2nd ↔ 3rd ↔ 4th (O/D) 

automatic gear change

“D” range (Transfer 4L 
(4WD model only))

Forward 1st 

↔ 2nd ↔ 3rd gear change

“3” range

Forward 1st 

↔ 2nd ↔ 3rd automatic gear 

change

“2” range (Normal 
mode)

Forward 1st 

↔ 2nd ← 3rd automatic gear 

change

“2” range (Power mode) Forward 2nd 

← 3rd automatic gear change

“L” range

Forward 1st 

← 2nd reduction, and fixed at 1st 

gear

Gear ratio

1st

2.826

2nd

1.493

3rd

1.000

4th

0.688

Reverse

2.703

Control elements

Wet type multi-disc clutch ... 3 sets
Wet type multi-disc brake ... 4 sets
One-way clutch ... 3 sets

Transfer (4WD model only)

Hi: 1.000
Lo: 1.970

Final gear reduction ratio

5.125

Lubrication Lubrication system

Forced feed system by oil pump

Cooling

Cooling system

Radiator assisted cooling (water-cooled)

Fluid used

SUZUKI ATF 3317 or Mobil ATF 3309

5A-5 Automatic Transmission/Transaxle: 

Clutch / Brake Functions of Automatic Transmission

S6JB0A5101002

I5JB0A510005-01

1. Overdrive clutch

5. Second coast brake

9. One-way clutch No.1

13. Intermediate shaft

2. Overdrive brake

6. Second brake

10. Overdrive one-way clutch

3. Forward clutch

7. Reverse brake

11. Overdrive input shaft

4. Direct clutch

8. One-way clutch No.2

12. Forward clutch input shaft

Part Name

Function

Overdrive clutch

Meshes overdrive carrier and overdrive sun gear.

Overdrive brake

Fixes overdrive sun gear.

Overdrive one-way clutch

Meshes overdrive carrier and overdrive sun gear only when driven by engine.

Forward clutch

Meshes input shaft and intermediate shaft.

Direct clutch

Meshes input shaft with front sun gear and rear sun gear.

Second coast brake

Fixes front sun gear and rear sun gear.

Second brake

Fixes outer race of one-way clutch No.1, to prevent front sun gear and rear sun gear 
from turning counterclockwise (reverse direction of engine input rotation direction).

Reverse brake

Fixes front planetary carrier.

One-way clutch No.1

Prevents front sun gear and rear sun gear from turning counterclockwise only when 
second brake is at work.

One-way clutch No.2

Prevents front planetary — carrier from turning counterclockwise.

Automatic Transmission/Transaxle:  5A-6

Table of A/T System Component Operation

S6JB0A5101003

Solenoid 

valve 

No. 1–A

Solenoid 

valve 

No. 1–B

O/D 

clutch

Forward

clutch

Direct clutch

O/D brake

Inner 

piston

Outer 

piston

P

{

X

{

—

—

—

—

R (V 

≤ 7 km/h)

{

X

{

—

{

{

—

R (V> 7 km/h)

X

{

{

—

—

—

—

N

—

—

{

—

—

—

—

D

1st gear

{

X

{

{

—

—

—

2nd gear

{

{

{

{

—

—

—

3rd gear

X

{

{

{

—

{

—

O/D

X

X

—

{

—

{

{

2

1st gear

{

X

{

{

—

—

—

2nd gear

{

{

{

{

—

—

—

3rd gear

X

{

{

{

—

{

—

L

1st gear

{

X

{

{

—

—

—

2nd gear

{

{

{

{

—

—

—

{

: ON, X: OFF

Second 

coast brake

Second 

brake

Reverse brake

O/D 

one-way 

clutch

One-way

clutch 

No. 1

One-way

clutch 

No. 2

Inner 

piston

Outer 

piston

P

—

—

—

—

{

—

—

R (V 

≤ 7 km/h)

—

—

{

{

{

—

—

R  (V>  7  km/h)

—

—

—

—

—

—

{

N

—

—

—

—

{

—

—

D

1st gear

—

—

—

—

{

—

{

2nd gear

—

{

—

—

{

{

—

3rd gear

—

{

—

—

{

—

—

O/D

—

{

—

—

—

—

—

2

1st gear

—

—

—

—

{

—

{

2nd gear

{

{

—

—

{

—

—

3rd gear (Fail safe)

—

{

—

—

{

—

—

L

1st gear

—

—

{

{

{

—

—

2nd gear (Fail safe)

{

{

—

—

{

—

—

{

: ON, X: OFF