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Vehicle Identification Number (VIN)
111 111 111111 II
SAMPLE4UXVM072675 IS1 I
ENGINEA7 f 1 ASSEMBLY
CODE MODEL YEAR PLANT
This is the legal identifier for your vehicle. It appears on
a plate in the front corner of the instrument panel, on the
driver’s side. You can see
it if you look through the
windshield from outside your vehicle. The VIN also
appears on the Vehicle Certification
and Service Parts
labels and the certificates
of title and registration.
Engine Identification
The 8th character in your VIN is the engine code. This
code will help you identify your engine, specifications
and replacement parts.
Service Parts Identification Label
You’ll find this label on the inside of the glove box. It’s
very helpful
if you ever need to order parts. On this
label is:
your VIN,
the model designation,
0 paint information and
a list of all production options and
special equipment.
Be sure that this label is not removed from the vehicle.
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Electrical System
Add-on Electrical Equipment
NOTICE:
Don’t add anything electrical to your vehicle
unless you check with your dealer first. Some
electrical equipment can damage your vehicle and the damage wouldn’t be covered by your
warranty. Some add-on electrical equipment
can keep other components from working as
they should.
Your vehicle has an air bag system. Before attempting to
add anything electrical to your vehicle, see “Servicing
Your Air Bag-Equipped Vehicle” in the Index.
Headlamps
The headlamp wiring is protected by an internal circuit
breaker.
An electrical overload will cause the lamps to go
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. 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 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 fixed or goes away.
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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. This greatly reduces the
chance of fires 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.
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. 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.
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.
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2
3
J
D
07
U13
OiQ
03 04
FusdCircuit Breaker Usage
1 Stop/TCC Switch, Buzzer, CHMSL,
Hazard Lamps, Stoplamps
Transfer Case
Courtesy Lamps, Cargo Lamp, Glove
Box Lamp, DomeReading Lamps,
Vanity Mirrors, Power Mirrors
FuseEircuit Breaker
4
10
11
12
13
14
Usage
Instrument Cluster, DRL Relay,
Lamp Switch, Keyless Entry, Low
Coolant Module, Illuminated Entry
Module, DRAC (Diesel Engine)
Not Used
Cruise Control
Auxiliary Power Outlet
Air Bag System
License Lamp, Parking Lamps,
Taillamps,
Roof Marker Lamps,
Tailgate Lamps, Front Sidemarkers,
Fog Lamp Relay, Door Switch
Illumination, Fender Lamps,
Headlamp Switch Illumination
Air Bag System
Wiper Motor, Washer Pump
A/C, A/C Blower, High
Blower Relay
Power Amp, Cigarette Lighter, Door
Lock Relay, Power Lumbar Seat
4WD Indicator, Cluster, Comfort
Controls, Instrument Switches,
Radio Illumination, Chime Module
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FuseKircuit Breaker
15
16
17
18
19
20
21
22
23
24
A
B
Usage
DRL Relay, Fog Lamp Relay
Front and Rear Turn Signals,
Back-up Lamps, BTSI Solenoid
Radio (Ignition)
LCWALNCM, ABS, Cruise Control
Radio (Battery)
PRNDL, Automatic Transmission, Speedometer, Check Gages
Warning Light
Variable Effort Steering
Not Used
Not Used
Front Axle, 4WD Indicator Lamp,
TP2 Relay (Gasoline Engine)
Power Door Lock, Six-Way Power
Seat, Keyless Entry Module
Power Windows
Underhood Fusemelay Center
The underhood fusehelay center is located in the rear
of the engine compartment near the brake fluid
reservoir. Move the retainer clips for the cover to
access the fuse block.
You can remove fuses with
a fuse extractor. The fuse
extractor
is mounted to the interior fuse block. 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.
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Page 350 of 436
Name
ECM-B
RR DEFOG IGN-E
Usage
Fuel Pump, PCMNCM
Rear Window Defogger
Auxiliary Fan Relay Coil,
A/C
Compressor Relay, Hot Fuel
Module, Dual Tanks
Name
FUEL SOL
GLOW PLUG
HORN
AUX FAN
ECM-
1
NC
ENG-
1
LIGHTING
BATT
IGN-A
IGN-B ABS
BLOWER STOP/HAZ
Usage
Fuel Solenoid (Diesel Engine)
Glow plugs (Diesel Engine)
Horn, Underhood Lamps
Auxiliary Fan
Injectors,
PCMNCM
Air Conditioning
lgnition Switch,
EGR, Canister
Purge,
EVRV Idle Coast Solenoid,
Heated
02, Fuel Heater
(Diesel Engine), Water Sensor
(Diesel Engine)
Headlamp and Panel Dimmer
Switch,
Fog and Courtesy Fuses
Battery, Fuse Block Busbar
Ignition Switch
Ignition Switch
Anti-Lock Brake Module
Hi Blower Relay
Stoplamps
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Replacement Bulbs
Exterior Lamps Quantity Number
Sealed Beam Headlamps 2 H6054
Composite Low-Beam 2 9006
Headlamps
Composite High-Beam
2 9005
Headlamps
Front Marker Lamp
Front Parking and Turn Lamp
Rear Parking Lamp
Rear Stop and
Turn
Lamp
Back-up Lamp
Fender Marker Lamp
Roof Marker Lamp
License Plate Lamp
Center High-Mounted
Stoplamp
Underhood Lamp
Underhood Reel Lamp
2
4
194
2357NA
2
2
3057 3057
1
1
3156
194
194
194
92
1
93
232
Interior Lamps
Dome Lamps
Reading Lamps
Door Courtesy Lamps
Four-
W heel- Drive
Indicator
Four-Wheel-Drive Shift
Lever
Instrument Panel
Compartment Lamp
Ashtray Lamp
Sunshade Vanity Mirror
Quantity
2
2
2
1
1
1
1
1
Number
21 1-2
211-2 194 194
194
194
194 74
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Capacities and Specifications
Please refer to “Recommended Fluids and Lubricants” in the Index for more information.
Engine Type VIN Code Spark Plug Gap
“VORTEC”
4300 V6 W 0.060 inches (1.52 mm)
“VORTEC” 5000 V8 M 0.060 inches (1.52 mm)
“VORTEC”
5700 V8 R 0.060 inches (1.52 mm)
“VORTEC” 7400
V8 J 0.060 inches (1.52 mm)
Wheels and Tires
Model
C 1500
K 1500 and C/K 2500
C/K 2500 (w/C6P)
C/K
3500 (Single Rear Wheels)
C/K 3500 (Dual Rear Wheels)
C 3500 HD Front
C 3500 HD Rear
Tire Pressure
Description Torque
5 bolts (14mm) 140 lb-ft (190 N-m)
6 bolts (14mm) 140 lb-ft ( 190 Nam)
8 bolts (14mm)
140 lb-ft ( 190 N-m)
8 bolts (14mm) 140 lb-ft ( 190 N-m)
8 bolts (14mm) 140 lb-ft ( 190 N-m)
5 bolts (5/8 in.) 175 lb-ft (240 N-m)
10 bolts (5/8 in.) 175
lb-ft (240 N-m)
See the CertificatiodTire label on the rear edge of the driver’s door
or the incomplete vehicle document
in the cab.
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