01

Passenger Door Control Module

02

Driver Door Control Module

03

Liftgate Module 2

04

Truck Body Controller 3

05

Rear Fog Lamps

06

Blank

07

Truck Body Controller 2

08

Power Seats

09

Rear Wiper

10

Driver Door Module

11

Amplifier

12

Passenger Door Module

13

Rear Climate Controls

14

Driver Side Rear Parking Lamps

15

Blank

16

Vehicle Center High-Mounted Stoplamp (CHMSL)

17

Passenger Side Rear Parking Lamps

18

Locks

19

Liftgate Module/Driver Seat Module

20

Blank

21

Lock

23

Blank

24

Unlock

25

Blank

26

Blank

27

OnStar® Overhead Battery/OnStar® System

28

Sunroof

29

Not Used

30

Parking Lamps

31

Truck Body Controller Accessory

32

Truck Body Controller 5

33

Front Wipers

34

Vehicle Stop

35

Transmission Control Module

36

Heat Ventilation Air Conditioning B

37

Front Parking Lamps

38

Driver Side Turn Signal

39

Heat Ventilation Air Conditioning 1

40

Truck Body Controller 4

41

Radio

42

Trailer Park

43

Passenger Side Turn Signal

44

Heat Ventilation Air Conditioning

45

Rear Fog Lamps

46

Auxiliary Power 1

47

Ignition 0

48

Four-Wheel Drive

49

Blank

50

Truck Body Controller Ignition

51

Brakes

52

Truck Body Controller Run