GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1999 🢒 Regal 🢒 Body and Accessories 🢒 Retained Accessory Power 🢒 Body Control System Schematics
Figure 1:

Cell 51: Power and Ground Distribution, RAP Relay, and Performance Shift Switch.
Object Number: 385089 Size: FS
Figure 2:

Cell 51: Daytime Running Lights, Fog Lights and Horns
Object Number: 385092 Size: FS
Figure 3:

Cell 51: Backup Lamps
Object Number: 385095 Size: FS
Figure 4:

Cell 51: Electronic Traction Control Switch, Tire Inflation Reset Switch, Class 2 Serial Data, and PASS-Key®
Object Number: 385098 Size: FS
Figure 5:

Cell 51: Audible Warning Inputs
Object Number: 385100 Size: FS
Figure 6:

Cell 51: Interior Lights Control Inputs
Object Number: 385105 Size: FS
Figure 7:

Cell 51: Interior Lights Control -- Inadvertent Battery Rundown Protection and Theater Dimming 1 Ground Output
Object Number: 385108 Size: FS
Figure 8:

Cell 51: Interior Lights Theater Dimming 2 Output Control
Object Number: 385111 Size: FS
Figure 9:

Cell 51: Automatic Door Locks Inputs
Object Number: 385112 Size: FS
Figure 10:

Cell 51: Automatic Door Locks Outputs
Object Number: 385116 Size: FS