GMC Sierra mk1 (2001 – 2002) – fuse box diagram

GMC Sierra mk1 (2001 – 2002) – fuse box diagram

Year of production: 2001, 2002

Instrument Panel Fuse Block

The fuse block access door is on the driver’s side edge of the instrument panel. Pull off the cover to access the fuse block.

GMC Sierra mk1 – fuse box – instrument panel
GMC Sierra mk1 – fuse box – instrument panel
Name Usage
L BODY Retained Accessory Power Relay
LOCK Power Door Locks
DRV UNLOCK Power Door Lock Relay
LOCK Power Door Lock Relay
HVAC 1 Climate Control System
CRUISE Cruise Control, Instrument Panel Cluster
IGN 3 Ignition, Power Seats
4WD Four-Wheel Drive System, Auxiliary Battery
CRANK Starting System
INT PRK Parking Lamps, Sidemarker Lamps, Interior Lamps
L DOOR Power Door Lock Relay
BRAKE Anti-Lock Brake System
ILLUM Interior Lamps
SEAT Power Seat Circuit Breaker
TURN Exterior Lamps, Turn Signals, Hazard Lamps
UNLOCK Power Door Locks
HTR A/C Climate Control System
WS WPR Windshield Wipers
IGN 1 Ignition, Instrument Panel
MIR/LOCK Power Mirrors, Power Door Locks
DR LOCK Power Door Locks
PWR WDO Power Window Circuit Breaker
UNLOCK Power Door Lock Relay
IGN 0 PRND321 Display, Odometer, PCM
SEO IGN Special Equipment Option, Ignition, Manual Selectable Ride
SEO ACCY Special Equipment Option Accessory, Cellular Telephone
RAP #1 Retained Accessory Power Relay
RDO 1 Audio System
RAP #2 Not Used

Center Instrument Panel Utility Block

The center instrument panel utility block is located underneath the instrument panel, to the left of the steering column.

GMC Sierra mk1 – fuse box – center instrument panel
GMC Sierra mk1 – fuse box – center instrument panel
Name Usage
SEO Special Equipment Option
HTD ST Heated Seats
SPARE 4 Not Used
VANITY Headliner Wiring
TRAILER Trailer Brake Wiring
PWR ST Power Seats
SPARE 5 Not Used
CLUTCH Manual Transmission Clutch Switch
UPF Upfitter
PARK LAMP Parking Lamps (Relay)
FRT PRK EXPT Not Used (Fuse)
SL RIDE Manual Selectable Ride Switch
SPARE 2 Not Used
RR PRK LP Not Used (Relay)
RR FOG LP Not Used (Relay)
SPARE 3 Not Used
INADV PWR Interior Lights Feed
CTSY LP Courtesy Lamps
CEL PHONE Cellular Telephone Wiring

Underhood Electrical Center

The underhood electrical center is located on the driver’s side of the engine compartment near the battery.

GMC Sierra mk1 – fuse box diagram  – engine compartment
GMC Sierra mk1 – fuse box diagram – engine compartment

*1 INJ B–Gasoline Engine and Diesel Engine.
*2 ECM I–Gasoline Engine; ECMRPV–Diesel Engine.
*3 02 A–Gasoline Engine; FUEL HT–Diesel Engine.
*4 02 B–Gasoline Engine; ECM I–Diesel Engine.

Name Usage
GLOW PLUG Diesel Glow Plugs and Intake Air Heater
CUST FEED Gasoline Accessory Power
STUD #1 Accessory Power/Trailer Wiring Feed
ABS Anti-Lock Brakes
IGN A Ignition Switch
AIR A.I.R. System
RAP #1 Retained Accessory Power, Power Mirrors, Power Door Locks, Power Seat(s)
IGN B Ignition Switch
RAP #2 Not Used
STUD #2 Accessory Power/Trailer Wiring Brake Feed
SPARE Spare Fuse
TRL R TRN Right Turn Signal Trailer Wiring
TRL L TRN Left Turn Signal Trailer Wiring
IGN 1 Ignition, Fuel Controls (Relay)
INJ B Ignition, Fuel Controls
STARTER Starter (Relay)
PARK LP Parking Lamps
FRT HVAC Climate Control System
STOP LP Exterior Lamps, Stoplamps
ECMRPV Fuel Controls, ECM
CHMSL Center High Mounted Stoplamp
VEH STOP Stoplamps, Cruise Control
TRL B/U Backup Lamps Trailer Wiring
INJ A Fuel Controls, Ignition
RR HVAC Not Used
VEH B/U Vehicle Backup Lamps
ENG 1 Engine Controls, Canister Purge, Fuel System
ETC Electronic Throttle Control
IGN E A/C Compressor Relay, Rear Window Defogger, Daytime Running Lamps, A.I.R. System
B/U LP Backup Lamps, Automatic Transmission Shift Lock Control System
ATC Automatic Transfer Case
RR DEFOG Rear Window Defogger, Heated Mirrors (Relay)
RR PRK Right Rear Parking Lamps
F/PMP Fuel Pump (Relay)
O2 A Oxygen Sensors
FUEL HT Fuel Heater, Glow Plug and Intake Heater Controls
O2 B Oxygen Sensors
LR PRK Left Rear Parking Lamps
RR DEFOG Rear Window Defogger, Heated Mirrors
HDLP Headlamps (Relay)
TRL PRK Parking Lamps Trailer Wiring
RT HDLP Right Headlamps
DRL Daytime Running Lamps (Relay)
HTD MIR Heated Mirrors
LT HDLP Left Headlamps
A/C Air Conditioning
AUX PWR Cigarette Lighter, Auxiliary Power Outlets
SEO 2 Special Equipment Option Power, Power Seats, Aux Roof Mnt Lamp
SEO 1 Special Equipment Option Power, Aux Roof Mnt Lamp, Cell Phone, OnStar
DRL Daytime Running Lamps
A/C A/C (Relay)
FOG LP Fog Lamps
FOG LP Fog Lamps (Relay)
RADIO Audio System, Instrument Cluster, Climate Control System
CIGAR Cigarette Lighter, Auxiliary Power Outlets
RT TURN Right Turn Signals
BTSI Automatic Transmission Shift Lock Control System
LT TURN Left Turn Signals
FR PRK Front Parking Lamps, Sidemarker Lamps
W/W PMP Windshield Washer Pump
HORN Horn (Relay)
IGN C Ignition Switch, Fuel Pump, PRND321 Display, Crank
RDO AMP Not Used
HAZ LP Exterior Lamps, Hazard Lamps
EXP LPS Not Used
CTSY LP Interior Lamps
RR WPR Not Used
TBC Body Control Module, Remote Keyless Entry, Headlamps

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.