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

Cell 39: PCM Power and Grounds


Object Number: 187376  Size: FS
Automatic Transmission Components
Electronic Component Description
Cell 39: Transaxle Solenoids, ABS/TCC Switch and VSS
OBD II Symbol Description Notice
Cell 10: IGN 3 Fuse and Ignition Switch (Buick)
Cell 10: Battery Power
Cell 10: PCM, DIS, and FOG LAMPS Fuses
Powertrain Control Module Connector End Views
Handling ESD Sensitive Parts Notice
Cell 10: PCM/VATS and BOSE Fuses
Ground Distribution Schematics
Figure 2:

Cell 39: Transaxle Solenoids, ABS/TCC Switch and VSS


Object Number: 187412  Size: FS
Automatic Transmission Components
Electronic Component Description
Cell 39: Transaxle TR Switch and Sensors
Cell 39: PCM Power and Grounds
OBD II Symbol Description Notice
Automatic Transmission Schematic References
Automatic Transmission Schematic References
Automatic Transmission Schematic References
Handling ESD Sensitive Parts Notice
Powertrain Control Module Connector End Views
Figure 3:

Cell 39: Transaxle TR Switch and Sensors


Object Number: 187418  Size: FS
Automatic Transmission Components
Electronic Component Description
Cell 39: Park/Neutral Position Switch, Shift Select Switch
Cell 39: Transaxle Solenoids, ABS/TCC Switch and VSS
OBD II Symbol Description Notice
Handling ESD Sensitive Parts Notice
Automatic Transmission Schematic References
Powertrain Control Module Connector End Views
Handling ESD Sensitive Parts Notice
Figure 4:

Cell 39: Park/Neutral Position Switch, Shift Select Switch


Object Number: 187427  Size: FS
Automatic Transmission Components
Electronic Component Description
Cell 39: Transaxle TR Switch and Sensors
OBD II Symbol Description Notice
Automatic Transmission Schematic References
Automatic Transmission Schematic References
Automatic Transmission Schematic References
Powertrain Control Module Connector End Views
Handling ESD Sensitive Parts Notice