Clutch / Brake / Planetary Gear Function of Automatic Transaxle

Fig 1: Exploded View Of Clutch/Brake/Planetary Gear Automatic Transmission

Courtesy of SUZUKI OF AMERICA CORP.

Functions

Part name	Function
2nd and 4th brake	Fixes planetary sun gear
Reverse clutch	Meshes input shaft and sun gear
One-way clutch No. 1	Prevents front planetary ring gear from turning counterclockwise (reverse direction of engine input rotation direction)
1st and reverse brake	Fixes front planetary ring gear
Overdrive clutch	Meshes front planetary ring gear and input shaft only when forward clutch is at work
One-way clutch No. 0	Prevents rear planetary ring gear from turning counterclockwise (reverse direction of engine input rotation direction) only when forward clutch is at work.
Coast clutch	Meshes rear planetary ring gear and input shaft only when forward clutch is at work.
Forward clutch	Meshes rear planetary and front planetary ring gear only when overdrive clutch is at work, and meshes input shaft and rear planetary ring gear only when coast clutch is at work.

Table of Component Operation

Part

Solenoid valve- A No. 1

Solenoid valve-B No. 2

TCC solenoid valve

Forward clutch

Reverse clutch

Coast clutch

Overdrive clutch

2nd / 4th brake

1st / reverse brake

One-way clutch No. 1

One-way clutch No. 0

Selector position

Gear position

⁽¹⁾

⁽²⁾

⁽¹⁾

⁽²⁾

⁽¹⁾

⁽²⁾

⁽¹⁾

⁽²⁾

⁽¹⁾

⁽²⁾

⁽¹⁾

⁽²⁾

⁽¹⁾

⁽²⁾

1st

⁽¹⁾

⁽²⁾

⁽¹⁾

⁽²⁾

⁽¹⁾

⁽²⁾

⁽¹⁾

2nd

⁽¹⁾

⁽²⁾

⁽¹⁾

⁽²⁾

⁽¹⁾

⁽²⁾

⁽¹⁾

⁽²⁾

⁽¹⁾

3rd

⁽²⁾

⁽¹⁾

⁽³⁾

⁽¹⁾

⁽²⁾

⁽¹⁾

⁽²⁾

⁽¹⁾

4th (O/D)

⁽²⁾

⁽³⁾

⁽¹⁾

⁽²⁾

⁽¹⁾

⁽²⁾

1st

⁽¹⁾

⁽²⁾

⁽¹⁾

⁽²⁾

⁽¹⁾

⁽²⁾

⁽¹⁾

2nd

⁽¹⁾

⁽²⁾

⁽¹⁾

⁽²⁾

⁽¹⁾

⁽²⁾

⁽¹⁾

⁽²⁾

⁽¹⁾

1st

⁽¹⁾

⁽²⁾

⁽¹⁾

⁽²⁾

⁽¹⁾

⁽²⁾

⁽¹⁾

⁽²⁾

OFF

⁽³⁾	ON only when TCC is operating