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

Shift Soleniods


Object Number: 782664  Size: FS
Master Electrical Component List
Automatic Transmission Electrical Connector Description
Transmission Switches
OBDII Symbol Description Notice
CRUISE SW, CRUISE, SUNROOF, and HVAC BLOWER Fuses
IGN MOD, B/U LMP, PCM IGN, INJR, A/C BFC, AUTO TRANS, ABS IGN Fuses
Brake Switch and Inhibit Signals
Figure 2:

Transmission Switches


Object Number: 782666  Size: FS
Master Electrical Component List
Automatic Transmission Electrical Connector Description
Shift Solenoids
OBDII Symbol Description Notice
Park Neutral Position (PNP) Switch
Figure 3:

Park Neutral Position (PNP) Switch


Object Number: 790916  Size: FS
Master Electrical Component List
Automatic Transmission Electrical Connector Description
Transmission Switches
OBDII Symbol Description Notice
SP102
SP102