Transmission Component and System Description

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

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: one roller clutch -1/2 support- and two sprag clutches - Third and Input
A final drive and differential assembly
One control valve assembly
One vane type oil pump
The electrical components of this unit are as follows
Two shift solenoid valves: 1-2/3-4 and 2-3
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 shaft 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 .