2007 GMC ENVOY fuse

Vehicle Identication.................................. 491
Vehicle Identication Number (VIN)........... 491
Service Parts Identication Label............... 491
Electrical System........................................ 492
Add-On Electrical Equipment..................... 492
Headlamps................................................ 492
Windshield Wiper Fuses............................ 492Power Windows and Other Power
Options.................................................. 492
Fuses and Circuit Breakers....................... 493
Engine Compartment Fuse Block............... 493
Rear Underseat Fuse Block....................... 499
Capacities and Specications.................... 502
Section 5 Service and Appearance Care
379

California Proposition 65 Warning
Most motor vehicles, including this one, contain
and/or emit chemicals known to the State of
California to cause cancer and birth defects or
other reproductive harm. Engine exhaust,
many parts and systems (including some inside
the vehicle), many uids, and some component
wear by-products contain and/or emit these
chemicals.
Doing Your Own Service Work
{CAUTION:
You can be injured and your vehicle could
be damaged if you try to do service work
on a vehicle without knowing enough
about it.
Be sure you have sufficient knowledge,
experience, the proper replacement
parts, and tools before you attempt any
vehicle maintenance task.
Be sure to use the proper nuts, bolts,
and other fasteners. English and metric
fasteners can be easily confused. If you
use the wrong fasteners, parts can later
break or fall off. You could be hurt.
If you want to do some of your own service work,
you will want to use the proper service manual.
It tells you much more about how to service your
vehicle than this manual can. To order the
proper service manual, seeService Publications
Ordering Information on page 545.
381

A. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 400.
B. Engine Coolant Recovery Tank. SeeCooling
System on page 411.
C. Windshield Washer Fluid Reservoir. See
“Adding Washer Fluid” underWindshield
Washer Fluid on page 418.
D. Power Steering Fluid Reservoir. SeePower
Steering Fluid on page 417.
E. Automatic Transmission Fluid Dipstick (Out of
View). See “Checking the Fluid Level” under
Automatic Transmission Fluid on page 401.
F. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 394.G. Radiator Pressure Cap. SeeRadiator Pressure
Cap on page 408.
H. Engine Oil Fill Cap. See “When to Add Engine
Oil” underEngine Oil on page 394.
I. Remote Negative (−) Terminal (Marked GND).
SeeJump Starting on page 423.
J. Brake Master Cylinder Reservoir. See “Brake
Fluid” underBrakes on page 419.
K. Battery. SeeBattery on page 422.
L. Engine Compartment Fuse Block. SeeEngine
Compartment Fuse Block on page 493.
391

A. Engine Coolant Recovery Tank. SeeCooling
System on page 411.
B. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 400.
C. Windshield Washer Fluid Reservoir. See
“Adding Washer Fluid” underWindshield
Washer Fluid on page 418.
D. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 394.
E. Automatic Transmission Fluid Dipstick. See
“Checking the Fluid Level” underAutomatic
Transmission Fluid on page 401.
F. Engine Oil Fill Cap. See “When to Add Engine
Oil” underEngine Oil on page 394.G. Radiator Pressure Cap. SeeRadiator Pressure
Cap on page 408.
H. Remote Negative (−) Terminal (Marked GND).
SeeJump Starting on page 423.
I. Power Steering Fluid Reservoir. SeePower
Steering Fluid on page 417.
J. Brake Master Cylinder Reservoir. See “Brake
Fluid” underBrakes on page 419.
K. Engine Compartment Fuse Block. SeeEngine
Compartment Fuse Block on page 493.
L. Battery. SeeBattery on page 422.
393

Electrical System
Add-On Electrical Equipment
Notice:Do not add anything electrical to your
vehicle unless you check with your dealer rst.
Some electrical equipment can damage your
vehicle and the damage would not be covered
by your warranty. Some add-on electrical
equipment can keep other components from
working as they should.
Add-on equipment can drain your vehicle’s
battery, even if your vehicle is not operating.
Your vehicle has an airbag system. Before
attempting to add anything electrical to your
vehicle, seeServicing Your Airbag-Equipped
Vehicle on page 88.
Headlamps
The headlamp wiring is protected by four fuses.
An electrical overload will cause a lamp to go
on and off. If this happens, have your headlamp
wiring checked right away.
Windshield Wiper Fuses
The windshield wiper motor is protected by a
circuit breaker and a fuse. If the motor overheats
due to heavy snow or ice, the wiper will stop
until the motor cools. If the overload is caused by
some electrical problem, be sure to get it xed.
Power Windows and Other
Power Options
Circuit breakers protect the power windows and
other power accessories. When the current load is
too heavy, the circuit breaker opens and closes,
protecting the circuit until the problem is xed
or goes away.
492

Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected
from short circuits by a combination of fuses
and circuit breakers. This greatly reduces
the chance of res caused by electrical problems.
Look at the silver-colored band inside the fuse.
If the band is broken or melted, replace the fuse.
Be sure you replace a bad fuse with a new
one of the identical size and rating.
If you ever have a problem on the road and don’t
have a spare fuse, you can borrow one that has the
same amperage. Just pick some feature of your
vehicle that you can get along without — like the
radio or cigarette lighter — and use its fuse, if it is
the correct amperage. Replace it as soon as
you can.
Engine Compartment Fuse Block
The fuse block is located under the hood in the
engine compartment on the driver’s side of
the vehicle. SeeEngine Compartment Overview
on page 390for more information on location.
Remove the primary cover by pressing the
two locking tabs. Remove the secondary cover
by snapping off while lifting. To reinstall the
fuse panel cover, reverse the sequence.
493

Fuses Usage
1Electrically-Controlled Air
Suspension
2Passenger’s Side High-Beam
HeadlampFuses Usage
3Passenger’s Side Low-Beam
Headlamp
4 Back-Up Trailer Lamps L6 Engine
494

Fuses Usage
5Driver’s Side High-Beam
Headlamp
6Driver’s Side Low-Beam
Headlamp
7 Windshield Wiper
8 Active Transfer Case
9 Windshield Washer
10 Powertrain Control Module B
11 Fog Lamps
12 Stoplamp
13 Cigarette Lighter
15 Electric Adjustable Pedals
16Truck Body Controller,
Ignition 1
17 Crank
18 Airbag
19 Trailer Electric Brake
20 Cooling Fan
21 Horn
22 Ignition E
23 Electronic Throttle ControlFuses Usage
24Instrument Panel Cluster,
Driver Information Center
25Automatic Shift Lock Control
System
26Transmission Control Module
Canister
27 Backup
28 Powertrain Control Module 1
29 Oxygen Sensor
30 Air Conditioning
31 Truck Body Controller 1
32 Trailer
33 Anti-lock Brakes (ABS)
34 Ignition A
35 Blower Motor
36 Blower
50 Passenger’s Side Trailer Turn
51 Driver’s Side Trailer Turn
52 Hazard Flashers
53 Headlamp Driver Module
54Air Injection Reactor (AIR)
Solenoid
495