GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Torque Convertor Clutch (TCC) Control Switch


Object Number: 688179  Size: FS
Master Electrical Component List
Transmission Component and System Description
Transmission Valve Controls
Fuse Block-Underhood Fuses 14, 13, 16, 15, 5 and Relays 43, 44, 35 and 42
Fuse Block-Underhood Bussing (2 of 2)
Power, Ground and Stoplamp Switch
G106 and G105
Engine Data Sensors - MAF and Extended Brake Travel Switch
Transmission Valve Controls
Figure 2:

Transmission Valve Controls


Object Number: 688183  Size: FS
Master Electrical Component List
Transmission Component and System Description
Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch and Pressure Control Solenoid (PC Sol) Valve
Torque Converter Clutch (TCC) Control Switch
Fuel Controls - Evap Controls
Torque Converter Clutch (TCC) Control Switch
Figure 3:

Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch and Pressure Control Soleniod (PC SOL) Valve


Object Number: 688258  Size: FS
Master Electrical Component List
Transmission Component and System Description
Transmission Valve Controls