GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1999 🢒 Regal (China) (CNG) 🢒 Body and Accessories 🢒 Body Control System 🢒 Body Control System Schematics
Figure 1:

Power/Ground, RAP and TCS
Object Number: 484015 Size: FS
Figure 2:

Exterior Lights and Horn
Object Number: 484021 Size: FS
Figure 3:

Pass Key, TCS, TIM and Serial Data
Object Number: 484022 Size: FS
Figure 4:

Audible Warning Inputs
Object Number: 484050 Size: FS
Figure 5:

Interior Lights Inputs
Object Number: 484054 Size: FS
Figure 6:

Interior Lights Output and Trunk Ajar Input
Object Number: 484061 Size: FS
Figure 7:

Interior Lights Output
Object Number: 484063 Size: FS
Figure 8:

Auto Door Lock Inputs
Object Number: 484064 Size: FS
Figure 9:

Auto Door Lock Outputs
Object Number: 484066 Size: FS