Chevrolet Express Owner's Manual page 296

The vehicle may not be equipped
with all of the fuses, relays, and
features shown.
3 Right Stop/Turn
Trailer
4 Spare
5 Spare
6 Fuel System
Control Module
Ignition
7 Body Control
Module 5
8 Body Control
Module 7
9 Body Control
Module 4
10 Instrument Cluster
11 Trailer Wiring
12 Inside Rear Vision
Camera Module
13 Spare