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
Underhood Electrical Center Fuses 14, 13, 16, 15, 5 and Relays 43,44, 35 and 42
Underhood Electrical Center Bussing (2 of 2)
Cruise Control Switch, Throttle Actuator Control Motor and Cruise Control Release Switch
G106 and G105
Mass Air Flow (MAF) Sensor and Extended Brake Travel Signal
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
Evaporative Emission (EVAP) Vent Valve Solenoid
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