Overhaul - 4-Speed: Description: Introduction

Transmission consists of a lock-up torque converter, oil pump, valve body assembly, 3 clutch assemblies, 3 planetary gear sets, 4 clutch style brakes and 3 one-way clutches.

The Suzuki 4-speed OD transmission is electronically controlled. Transmission shifting and torque converter lock-up are controlled by the Transmission Control Module (TCM), 2 shift solenoids and a lock-up solenoid. For electronic diagnostic procedures, see appropriate ELECTRONIC CONTROLS article.

The TCM receives information from various input devices and uses this information to control No. 1 and No. 2 solenoids on transmission valve body for transmission shifting and lock-up solenoid for torque converter lock-up. An Overdrive (OD) switch is mounted on shift lever. When OD switch is depressed to ON position, transmission will shift into 4th gear when shift lever is in "D" position. A mode switch is mounted on console and is used to change TCM shift program from Normal to Power and back.