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

Rear Object Sensor Control Module - Power and Ground


Object Number: 1412128  Size: FS
Master Electrical Component List
Object Detection Description and Operation
Object Sensors
Rear Fuse Block Battery Voltage
SIR, VENT SOL, and IGN 1 Fuse and IGN 1 Relay
SIR, VENT SOL, and IGN 1 Fuse and IGN 1 Relay
Rear Fuse Block Battery Voltage
Rear Fuse Block Battery Voltage
Backup Lamps Schematics
Gages
G401
Figure 2:

Object Sensors


Object Number: 1412130  Size: FS
Master Electrical Component List
Object Detection Description and Operation
Rear Object Sensor Control Module Power and Ground