Chevrolet Express Owner's Manual page 300

F12 Empty
F13 Heating, Ventilation
and Air
Conditioning 2
F14 Heating, Ventilation
and Air
Conditioning 1
F15 Empty
F17 Outside Rearview
Mirror Heater
F18 Rear Window
Defogger
F19 Compass
F20 Radio/Chime/
SiriusXM Satellite
Radio (If Equipped)
F21 Remote Function
Actuator/Tire
Pressure Monitor
F22 Ignition Switch/
Discrete Logic
Ignition
Sensor (PK3)
F23 Instrument Cluster
F25 Heating, Ventilation
and Air
Conditioning
Control
F26 Auxiliary/Trailer
Backup
F27 Taillamps Backup
F30 Upfitter Courtesy
Lamps
F31 Front Door Lock
F32 Rear Door Lock
F33 Cargo Door Unlock
F34 Passenger Door
Unlock
F35 Rear Passenger
Door Unlock
F36 Driver Door Unlock
F37 Empty
F38 Empty
F16 Upfitter Auxiliary 1
Gas Ambulance
F24 Empty
F28 Upfitter Auxiliary 2
Reading Lamps
Gas Ambulance
F29 Rear Blower
K1 Run (High Current
Micro)
K2 Empty (High
Current Micro)
K3 Park Lamps (High
Current Micro)