GMC 2004 Sierra 1500 Pickup Owner's Manual page 533

Fuses
HVAC/ECAS
CIG LTR
HI HDLP-RT
HDLP-LOW
A/C COMP
A/C COMP
RR WPR
RADIO
SEO B1
LO HDLP-LT
BTSI
CRANK
Usage
Climate Control Controller
Cigarette Lighter
High Beam Headlamp-Right
Headlamp Low Beam Relay
Air Conditioning Compressor
Air Conditioning Compressor
Relay
Not Used
Audio System
Mid Bussed Electrical Center,
Rear Heated Seats,
HomeLink
Headlamp Low Beam-Left
Brake Transmission Shift
Interlock System
Starting System
Fuses
LO HDLP-RT
FOG LP
FOG LP
HORN
W/S WASH
W/S WASH
INFO
RADIO AMP
RH HID
HORN
EAP
TREC
SBA
Usage
Headlamp Low Beam-Right
Fog Lamp Relay
Fog Lamps
Horn Relay
Windshield Washer Pump
Relay
Windshield Washer Pump
OnStar/Rear Seat
Entertainment
Radio Amplifier
Not Used
Horn
Not Used
All-Wheel Drive Module
Supplemental Brake Assist
5-133