1995 CHEVROLET SUBURBAN fuses

Turn Signal and Lane Change lndicator
To signal a turn, move the lever all the way up or down. When the turn is
finished, the lever will return automatically.
6
A green arrow on the
instrument panel will
flash in the direction
of the turn or lane
change.
To signal a lane change, just raise or lower the lever until the green arrow
starts to flash. Hold it there until you complete your lane change. The lever
will return by itself when you release it.
As you signal a turn or a lane change, if the arrows flash at twice the normal
rate, a signal bulb may be burned out and other drivers may
not see your
turn signal.
If a bulb
is burned out, replace it to help avoid an accident. If the green
arrows don’t
go on at all when you signal a turn, check for burned-out bulbs
and a blown fuse (see “Fuses” in the Index).
2-40
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Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected from short circuits by a
combination of fuses, circuit breakers, and fusible thermal links
in the
wiring itself. This greatly reduces the chance
of fires caused by electrical
problems. See “Fuses and Circuit Breakers”
in the Index for more
information.
Headlamps
The headlamp wiring is protected by a circuit breaker in the lamp switch.
An electrical overload will cause
the lamps to flicker on and off, or in some
cases to remain off. If this happens, have your headlamp wiring checked
right away.
Windshield Wipers
The windshield wiper motor is protected by a circuit breaker and a fuse. If
the motor overheats due
to heavy snow, etc., the wiper will stop until the
motor cools. Although the circuit is protected from electrical overload,
overload due
to heavy snow, etc., may cause wiper linkage damage. Always
clear ice and heavy snow from the the windshield before using the
windshield wipers. If the overload
is caused by some electrical problem and
not snow, etc., be sure to get it fixed.
Power Windows and Other Power Options
Circuit breakers in the fuse panel protect the power windows and other
power accessories. When the current load is
too heavy, the circuit breaker
opens and closes. This protects the circuit
until the current load returns to
normal
or the problem is fixed.
Trailer Wiring Harness
The seven-wire trailer wiring harness is protected by an in-line fuse in the
battery feed wire. This fuse is near the junction block. See “Trailer Wiring
Harness”
in the Index for more information.
6-75
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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.
The
fuse extractor 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.
Be sure to use the correct fuse. If you ever have a problem on the road and
don’t
have a spare fuse, you can “borrow” one of the correct value. 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 of the value you need. Replace
it as soon as you can. See “Fuses and Circuit Breakers” in the Index for
more information.
Specification Charts
Replacement Parts
Replacement part numbers listed in this section are based on the latest
information available at the time of printing, and are subject to change.
If a
part listed in this manual is not the same as the part used in your vehicle
when
it was built, or if you have any questions, please contact your GM
truck dealer.
Engine Identification - Gasoline Engines
Engine
Type
VIN Code
Fuel System Emissions
7.4L
V8
N
TBI? HD
*Light Duty Emissions
with 8,500 lbs. (3 850 Kg) GVWR and below.
**Heavy Duty Emissions over
8,500 Ibs. (3 850 Kg) GVWR.
?Throttle Body Injection
6-76
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Fuses and Circuit Breakers
POSITION
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13. 14.
15.
16.
17.
18.
19.
20.
21.
22.
NAME
STOP/HAZ
T CASE
CTSY
GAGES
RR WAC
CRUISE
AUX PWR CRANK
PARK LPS
AIR BAG
WIPER
HTR-A/C
CIG LTR
ILLUM
DRL-FOG
TURN-B/U
RADIO
BRAKE
RADIO
BATT
TRANS
CIRCUITS PROTECTED
Stop/TCC Switch, Buzzer, CHMSL, Hazard
Lamps, Stop Lamps
Transfer Case
Courtesy Lamps, Cargo Lamp, Glove Box
Light, Dome/RDG Lamps, Vanity Mirrors,
Pwr Mirrors
IP Cluster, DRL Relay, HDLP Switch,
Keyless Entry, Low Coolant Module
RR HVAC Controls
Cruise Control
Aux Power Outlet
Diesel Fuel Pump, DERM, ECM
Lic Lamp, Park Lamp, Tail Lamp, Roof
Marker Lamp, Tdi1 Gate Lamps, Front Side
Markers, Door Switch Illum, Fender Lamps
DERM
Wiper
Motor, Washer Pump
A/C, A/C Blower, High Blower Relay
Power Amp, Rear Liftglass, Cig Lighter,
Door Lock Relay, Pwr Lumbar Seat
4WD, Indicator, LP Cluster, HVAC
Controls,
RR HVAC Controls, IP Switches,
Radio Illumination
DRL Relay,
Fog Lamp Relay
Frt Turn, RR Turn, B/U Lps
Radio (Ign)
DRAC, 4WAL PCM. ABS,
... . Cruise
Radio (Batt)
PRNDL, Auto Transmission, Speedo,
Check Gages Tell Tde
Not Used Not Used
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Bulb Replacement Center High Mounted Stop Lamp (CHMSL)
........................ 6-52
Front Park Turn Signal Lamps with Composite
...................... 6-49
Front Park Turn Signal Lamps with Sealed Beam
.................... 6-48
HalogenBulbs
................................................ 6-47
RearLamps
.................................................. 6-52
Composite Headlamps
......................................... 6-47
Replacement Chart
............................................ 6-82
Roof Marker Lamps
........................................... 6-51
Sealed Beam Headlamps ........................................ 6-46
Side Marker Lamps
............................................ 6-50
Taillamps
.................................................... 6-50
C
Capacities and Specifications ....................................... 6-76
Cargo Security Shade
............................................. 2-82
Cargo Tie Downs
................................................ 2-84
Catalytic Converter
.............................................. 6-53
Changing a Flat Tire
.............................................. 5-25
Chemical Paint Spotting
........................................... 6-70
Child Security Locks
.............................................. 2-8
Cigarette LightedAshtrays
....................................... 2-57
CarbonMonoxide
.......................................... 2.29.
4-43
Care of Your Cassette Tape Player (See “Audio Systems”
)
Cassette Tape Player System (See “Audio Systems” )
Center High Mounted Stop Lamp (CHMSL) (See “Lamps”)
Certificationmire Label
........................................... 4-37
Child Restraints (See “Safety Belts”)
Circuit Breakers (See “Fuses and Circuit Breakers”)
Cleaning DieselEngine
................................................ 6-14
Fabric Protection
.............................................. 6-65
Finishcare
.................................................. 6-68
Glass
....................................................... 6-67
Insideofvehicle
.............................................. 6-63
Leather
..................................................... 6-66
OutsideofVehicle
............................................. 6-67
Instrument Panel.
Top
.......................................... 6-66
Outside
of the Windshield and Wiper Blades ........................ 6-67
Special Problems
.............................................. 6-65
Tires
....................................................... 6-69
Vinyl
....................................................... 6-66
Weatherstrips
................................................. 6-67
Wheels and Tires
.............................................. 6-69
Audio System with AUTO TONE System
.......................... 3-10
Audio System without AUTO TONE System
........................ 3-9
Compass
....................................................... 2-52
Control of a Vehicle
............................................... 4-4
Clock, Setting
the
Comfort Controls
................................................. 3-1
Compact Disc (CD) System (See “Audio Systems”)
2
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E
Eiectrical System
Engine Add-On
Equipment
........................................... 6-74
Adding Coolant
. Diesel Engine ........................... 5.18, 636
Adding Coolant
- Gasoline Engine .... , .................... 5-1 1’6-35 .
Air Cieaner
Coolant
.........................
Coolant Heater ...................
Coolant Temperature Gage (See “Gages‘
Diesel Heater Output
...............
.
......................
Control Module System ............
........................... 6-25
........................... 6-53
........................... 6-33
.................. 2-19.3-4. 6-19
1
............................ 3-4
Exhaust
..................................................... 2-31
FanNoise
................................................... 5-24
Identification .................................. 6-72.6-73.6-76. 6-77
Oil (See “Oil”)
Overheating
................................................... 5-9
RunningWhileParked ......................................... 2-32
Starting Your Gasoline Engine
................................... 2-13
Starting Your Diesel Engine
..................................... 2-15
Exhaust System
............................................... 6-53
F
Filter Replacement Chart (See “Service-Replacement Parts and Filter
Recommendations’’)
Fluid Capacities (See “Capacities and Specification”)
Fluid Leak Check
..................................... ........ 6-45
Fluids (See “Scheduled Maintenance Services”)
Four-WheelDrive
............................................... 2-33
Front Axle Locking Feature
..................................... 2-35
Transfer Case
........................................... 2-33. 6-32
Canadian
..................................................... 6-5
Diesel
....................................................... 6-4
Filling Your Tank ............................................. 6-11
Foreign Countries (Gasoline Engines)
............................. 6-11
Filter Replacement (Diesel Engines)
............................... 6-9
Gage (See “Gages”)
Gasoline
..................................................... 6-2
Gasolines for Cleaner Air
........................................ 6-3
Running Out of Fuel (Diesel Engines) .............................. 6-8
Tankcapacity ................................................ 6-78
Water in Fuel (Diesel Engines) ............................... 2-70. 6-5
Fuses and Circuit Breakers ................................... 6-75. 6-81
FuseBlock
............................................. 6-766-80
Fuel
4
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