2003 GMC YUKON DENALI Owners Manual

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.
You can remove fuses with a fuse extractor which
is
mounted to the fuse block access door. To remove fuses
if you don’t have a fuse extractor, hold the end of the
fuse between your thumb and index finger and pull
straight out.
VJ
LT DOORS
I’ I U
You may have spare fuses located behind the fuse
block access door. These can be used
to replace a bad
fuse. However, make sure it
is of the correct amperage.
5-88

Power Door Lock Relay
DRIVER UNLOCK (Driver’s
Door Unlock
Fuses
VEH CHMSL
LT TRLR ST/TRN
LT TRN
VEH STOP
Usage
Vehicle and Trailer High
Mounted Stoplamp
Left Turn SignaVStop Trailer
Left Turn Signals and
Sidemarkers
Vehicle Stoplamps, Brake Module, Electronic Throttle
Control Module
RT TRLR ST/TRN Right Turn Signal/Stop Trailer
-
RT TRN Right Turn Signals and
Sidemarkers
AUX
PWR 2 I
Rear Cargo Area Power
Outlets
5-89

Center Instrument Panel Fuse Block
The center instrument panel utility block is located
underneath the instrument panel,
to the left of the
steering column.
A FRT
[ 12-WAY) BODY (A) WHT (B)
HDLNR 1 (A)
12-WAY
1 2-WAY
5-90
SL RIDE
HDLR
2 Headliner Wiring Connector
Ride Control
Harness
Connection ~~ [BODY I Body Wiring Connector ---- - I Utl-uti Rear Defogger Relay
HDLNR
1 Headliner Wiring Connector 1
SPARE RELAY Not Used
CB
SEAT
CB RT DOOR Driver
and Passenger Seat
Module Circuit Breaker
Right Power Window Circuit
Breaker
SPARE Not Used
INFO Infotainment Harness
Connection

Underhood Fuse Block The underhood fuse block in the engine compartment
on the driver’s side
of the vehicle near the battery.
Lift the cover for access to the fuse/relay block.
To remove fuses, hold the end of the fuse between your
thumb and index finger and puli straight out.
See Engine Compartment Overview on page
5-12 for
more information on
its location.
5-91

Replace cover after servicing. Remettre le couvercle en Dlace.
B+
.- - - T- I I I SLOW I PLUG
OR I
I CUST I FEED I
,e-
IOTE: The function and FUNCTION/AMP-GAS FUNCTION/AMP-DIESEL * REMARQUE: La fonction et I'intensiti! dl
re different for gas and
mperage
of these fuses FONCTlON/INTENSlT~-ESSENCE FONCTION/INT€NSIT6-DlESEL ces fusibles sont diffhrentes pour les
iesel fueled engines. See EDU/25A
moteurs i essence et les moteurs diesel
lwners Manual for ECMRPV/ISA Voir
le Guide du proprigtaire a pour
lnctions of studs
#I and #2. FUEL HT/IM les fonctions des plots 1 et 2. ECMI/15A a EDU
5-92

*I - Gasoline Engine and Fuel Injection Rail #2.
*2 - Gasoline Engine and Fuel Injection Rail #l.
*3 - Gasoline Engine; Oxygen Sensors.
*4 - Gasoline Engine; Oxygen Sensors.
*5 - PCM Ignition
I Fuses I Usage I
I STUD #1 I
Battery-and Diesels
Only)/Dual Battery (TP2) Do
not -install fuse.
Mid Bussed Electrical Center
MBEC Power
Feed, Front Seats,
LBEC Door Modules, Door Locks,
Auxiliary Power Outlet-Rear
Cargo Area and Instrument
Panel
STUD 2 Accessory
Powerflrailer
Wirinq Brake Feed LBEC
1
~~
I RR PARK I
Right
Rear Parking and
Sidemarker LamDs
I
5-93

Fuses
RR HVAC
Usage
Rear Climate Control
AUX PWR I
Auxiliary Power
Outlet
- Console
IGN
1
PCM 1 Ignition Relay
Electronic Throttle Control,
ETC/ECM Powertrain Control Module
Electronic Brake Controller
IGN E Instrument Panel Cluster,
Air
Conditioning Relay, Turn
SignaVHazard Switch, Starter
Relav
RTD I Ride Control I
TRL B/U
~~
I Backup LampsTrailG Wiring 1
PCM B I
Powertrain Control Module,
Fuel Pumr,
I I
F/PMP I Fuel Pump (Relay)
B/U LP
I
Back-up Lamps, Automatic
Transmission Shift Lock
I
Control System
RR DEFOG
Rear Window Defoaaer
HDLP-HI
~~~ ____
HeadlampHighBeam Relay
PRIME Not Used
Fuses I Usage I
SIR Supplemental Inflatable
Restraint System
FRT PARK
DRL Front Parking Lamps,
Sidemarker Lamps
Daytime Running Lamps
(Relav)
SEO IGN
Truck Body Controller Ignition
TBC IGN1 Rear
Defog Relay
HI HDLP-LT High
Beam Headlamp-Left
LH HID Not
Used
DRL
I Davtime Runnina LamDs I
Instrument Panel
IPC/DIC Cluster/Driver Information
HI HDLP-RT
HDLP-LOW High
Beam Headlamp-Right
Headlamp Low Beam Relav
A/C COMP
I Air Conditionina Comm-essor I v
A/C COMP Air
Conditioning Compressor
Relav
5-94

Fuses
RR WPR RADIO
SEO B1
LO HDLP-LT
BTS I
CRANK
FOG LP Fog Lamps
HORN Horn Fuse
Fuses Usage
HORN Horn Relav
5-95