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

PWR and VSS


Object Number: 60169  Size: FS
Automatic Transmission Components
OBD II Symbol Description Notice
Information Sensors 5.7L, 7.4L
Solenoid, TCC and Stoplamp Controls
Figure 2:

Solenoid, TCC and Stoplamp Controls


Object Number: 60179  Size: FS
Automatic Transmission Components
OBD II Symbol Description Notice
Information Sensors 5.7L, 7.4L
Sensor Controls
Sensor Controls 5.0L/5.7L
Figure 3:

Switch, Sensor and GND Controls


Object Number: 60178  Size: FS
Automatic Transmission Components
OBD II Symbol Description Notice
Information Sensors 5.7L, 7.4L
PWR and VSS