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Home >> Saturn >> 2007 >> RELAY AWD V6-3.9L >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Description and Operation >> Transmission Component and System Description
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Transmission Component and System Description



Transmission Component and System Description

The mechanical components of this unit are as follows:

* A torque converter with an electronically controlled capacity clutch (ECCC)
* A drive link assembly
* Four multiple disk clutch assemblies: Input, Second, Third and Fourth
* Three friction bands: Forward band, 2/1 band and Reverse band
* Two planetary gear sets: Input and Reaction
* Three one-way clutches: a roller clutch (1-2 support) and 2 sprag clutches (Third and Input)
* A final drive and differential assembly
* A control valve assembly
* A vane type oil pump

The electrical components of this unit are as follows:

* Two shift solenoid valves
* A torque converter clutch pulse width modulation (TCC PWM) solenoid valve
* A pressure control (PC) solenoid valve
* An automatic transmission fluid temperature (TFT) sensor
* Two speed sensors: input speed and vehicle speed sensors
* An automatic transmission fluid pressure (TFP) manual valve position switch
* Either an internal mode switch (IMS) or an externally-mounted transmission range (TR) switch
* An automatic transmission (A/T) wiring harness assembly

For more information, refer to Electronic Component Description.

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