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

Cell 51: Power, Ground and Vehicle Speed Input


Object Number: 343076  Size: FS
Body Control Module Components
Body Control Module Diagnostic Information
Cell 51: Audible Warning Circuit
Power Distribution Schematics
Power Distribution Schematics
Power Distribution Schematics
Power Distribution Schematics
Power Distribution Schematics
Ground Distribution Schematics
Ground Distribution Schematics
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 2:

Cell 51: Audible Warning Circuit


Object Number: 343080  Size: FS
Body Control Module Components
Body Control Module Diagnostic Information
Cell 51: Power, Ground and Vehicle Speed Input
Cell 51: Power Door Lock Circuits
Audible Warnings Schematics
Audible Warnings Schematics
Handling ESD Sensitive Parts Notice
Figure 3:

Cell 51: Power Door Lock Circuits


Object Number: 343085  Size: FS
Body Control Module Components
Body Control Module Diagnostic Information
Cell 51: Audible Warning Circuit
Cell 51: Interior Lamp Circuits
Door Lock/Indicator Schematics
Door Lock/Indicator Schematics
Handling ESD Sensitive Parts Notice
Figure 4:

Cell 51: Interior Lamp Circuits


Object Number: 343089  Size: FS
Body Control Module Components
Body Control Module Diagnostic Information
Cell 51: Power Door Lock Circuits
Interior Lights Schematics Buick
Interior Lights Schematics Buick
Interior Lights Schematics Buick
Handling ESD Sensitive Parts Notice