GM Service Manual Online
For 1990-2009 cars only

Object Number: 1459964  Size: B3

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 pull straight out.

See Engine Compartment Overview for more information on its location.


Object Number: 1459919  Size: C2

*1 -- Gasoline Engine and Diesel Engine.

*2 -- Gasoline Engine; ECMRPV -- Diesel Engine.

*3 -- Gasoline Engine; FUEL HT -- Diesel Engine.

*4 -- Gasoline Engine; ECM I -- Diesel Engine.

*5 -- IGN/EDU

Fuses

Usage

GLOW PLUG

Diesel Glow Plugs and Intake Air Heater

CUST FEED

Gasoline Accessory Power

HYBRID

Hybrid

STUD #1

Auxiliary Power (Single Battery and Diesels Only)/ Dual Battery (TP2)  Do not install fuse.

MBEC

Mid Bussed Electrical Center Power Feed, Front Seats, Right Doors

BLOWER

Front Climate Control Fan

LBEC

Left Bussed Electrical Center, Door Modules, Door Locks, Auxiliary Power Outlet--Rear Cargo Area and Instrument Panel

STUD 2

Accessory Power/Trailer Wiring Brake Feed

ABS

Anti-Lock Brakes

VSES/ECAS

Vehicle Stability

IGN A

Ignition Power

IGN B

Ignition Power

LBEC 1

Left Bussed Electrical Center, Left Doors, Truck Body Controller, Flasher Module

TRL PARK

Parking Lamps Trailer Wiring

RR PARK

Right Rear Parking and Sidemarker Lamps

LR PARK

Left Rear Parking and Sidemarker Lamps

PARK LP

Parking Lamps Relay

STRTR

Starter Relay

INTPARK

Interior Lamps

STOP LP

Stoplamps

TBC BATT

Truck Body Controller Battery Feed

S/ROOF

Sunroof

SEO B2

Off-Road Lamps

4WS

Vent Solenoid Canister/Quadrasteer Module Power

RR HVAC

Not Used

AUX PWR

Auxiliary Power Outlet -- Console

IGN 1

Ignition Relay

PCM 1

Powertrain Control Module

ETC/ECM

Electronic Throttle Control, Electronic Brake Controller

IGN E

Instrument Panel Cluster, Air Conditioning Relay, Turn Signal/Hazard Switch, Starter Relay

RTD

Ride Control

TRL B/U

Backup Lamps Trailer Wiring

PCM B

Powertrain Control Module, Fuel Pump

F/PMP

Fuel Pump (Relay)

B/U LP

Back-up Lamps, Automatic Transmission Shift Lock Control System

RR DEFOG

Rear Window Defogger

HDLP-HI

Headlamp High Beam Relay

PRIME

Not Used

02B

Oxygen Sensors

AIRBAG

Supplemental Inflatable Restraint System

FRT PARK

Front Parking Lamps, Sidemarker Lamps

DRL

Daytime Running Lamps (Relay)

SEO IGN

Rear Defog Relay

TBC IGN1

Truck Body Controller Ignition

HI HDLP-LT

High Beam Headlamp-Left

LH HID

Not Used

DRL

Daytime Running Lamps

RVC

Regulated Voltage Control

IPC/DIC

Instrument Panel Cluster/Driver Information Center

HVAC/ECAS

Climate Control Controller

CIG LTR

Cigarette Lighter

HI HDLP-RT

High Beam Headlamp-Right

HDLP-LOW

Headlamp Low Beam Relay

A/C COMP

Air Conditioning Compressor

A/C COMP

Air Conditioning Compressor Relay

RR WPR

Not Used

RADIO

Audio System

SEO B1

Mid Bussed Electrical Center, Rear Heated Seats, HomeLink

LO HDLP-LT

Headlamp Low Beam-Left

BTSI

Brake Transmission Shift Interlock System

CRNK

Starting System

LO HDLP-RT

Headlamp Low Beam-Right

FOG LP

Fog Lamp Relay

FOG LP

Fog Lamps

HORN

Horn Relay

W/S WASH

Windshield Washer Pump Relay

W/S WASH

Windshield Washer Pump

INFO

OnStar®/Rear Seat Entertainment

RADIO AMP

Radio Amplifier

RH HID

Not Used

HORN

Horn

EAP

Not Used

TREC

All-Wheel Drive Module

SBA

Supplemental Brake Assist

Auxiliary Electric Cooling Fan Fuse Block


Object Number: 1470297  Size: A2

The auxiliary electric cooling fan fuse block is located in the engine compartment on the driver's side of the vehicle next to the underhood fuse block.

Lift the cover for access to the fuse/relay block.

Fuses

Usage

COOL/FAN

Cooling Fan

COOL/FAN

Cooling Fan Relay Fuse

COOL/FAN

Cooling Fan Fuse

Relays

Usage

COOL/FAN 1

Cooling Fan Relay 1

COOL/FAN 3

Cooling Fan Relay 3

COOL/FAN 2

Cooling Fan Relay 2