GM Service Manual Online
For 1990-2009 cars only

The mechanical components of this unit are as follows:

    â€¢ A torque converter with a torque converter clutch (TCC)
    â€¢ A gear type oil pump
    â€¢ Five multiple disk clutches
    â€¢ Two band assemblies
    â€¢ Three planetary gear sets
    â€¢ One sprag clutch
    â€¢ Two roller clutches
    â€¢ A control valve body assembly

The electrical components of this unit are as follows:

    â€¢ Two shift solenoid valves, 1-2 and 2-3
    â€¢ A torque converter clutch (TCC) solenoid valve
    â€¢ A transmission pressure control (PC) solenoid valve
    â€¢ An automatic transmission fluid temperature (TFT) sensor
    â€¢ An automatic transmission fluid pressure (TFP) manual valve position switch assembly
    â€¢ An output speed sensor (OSS)
    â€¢ An input speed sensor (ISS)