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

Electric Shift Power, Grounding, And Data Link


Object Number: 178007  Size: FS
Engine Electrical Components
Transfer Case Control Module Description
Electric Shift Control Module And Encoder
Handling Electrostatic Discharge Sensitive Parts Notice
Figure 2:

Electric Shift Control Module And Encoder


Object Number: 178011  Size: FS
Handling Electrostatic Discharge Sensitive Parts Notice
Engine Electrical Components
Transfer Case Control Module Description
Electric Shift Control Switch
Electric Shift Power, Grounding, And Data Link
Figure 3:

Electric Shift Control Switch


Object Number: 178013  Size: FS
Handling Electrostatic Discharge Sensitive Parts Notice
Handling Electrostatic Discharge Sensitive Parts Notice
Handling Electrostatic Discharge Sensitive Parts Notice
Engine Electrical Components
Transfer Case Control Module Description
Electric Shift Front Axle Switch
Electric Shift Control Module And Encoder
Figure 4:

Electric Shift Front Axle Switch


Object Number: 178015  Size: FS
Vehicle Speed Outputs And Overhead Console Link
Handling Electrostatic Discharge Sensitive Parts Notice
Brake Control Module Power And Grounding
Handling Electrostatic Discharge Sensitive Parts Notice
Handling Electrostatic Discharge Sensitive Parts Notice
Engine Electrical Components
Transfer Case Control Module Description
Cell 38: Power, Ground, Motor Controls and Data Link
Electric Shift Control Switch