CHEVROLET SUBURBAN 1997 Owners Manual

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 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.
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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.
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
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.
greatly reduces the chance of fires caused by electrical
problems. See “Fuses and Circuit Breakers” in the Index
for more information.
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.
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 attached to the inside of
the fuse block access door. These can be used to
replace a bad fuse. However, make sure that it is the
correct amperage.
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Fuse/Circuit Breaker Usage
4
Fuse/Circuit Breaker Usage
1 Stop/TCC Switch, Buzzer, CHMSL,
2 Transfer Case
Hazard Lamps, Stoplamps
3 Courtesy Lamps, Cargo Lamp, Glove
Box Lamp, DomeReading Lamps,
Vanity Mirrors, Power Mirrors 10
11
12
13 Instrument Cluster, DRL
Relay, Lamp
Switch, Keyless Entry, Low Coolant
Module, Illuminated Entry Module,
DRAC (Diesel Engine)
Rear Comfort Controls
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
NC, A/C Blower, High Blower Relay
Power Amp, Rear Liftglass, Cigarette
Lighter, Door Lock Relay, Power
Lumbar Seat
,
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15
16
Fuse/Circuit Breaker Usage
14 4WD Indicator, Cluster, Front and
Rear Comfort Controls, Instrument
Switches, Radio Illumination,
Chime Module
DRL Relay, Fog Lamp Relay
17
18
19
20
21
22
23
24
A
B Front and Rear Turn Signals,
Back-up
Lamps, BTSI Solenoid
Radio (Ignition)
4WALNCM, ABS, Cruise Control
Radio (Battery)
PRNDL, Automatic Transmission, Speedometer, Check Gages,
Warning Lights
Variable Effort Steering
Not Used
Rear Wiper, Rear Washer Pump
Front Axle, 4WD Indicator Lamp,
TP2 Relay (Gasoline Engine)
Power Door Lock, Six-Way Power
Seat, Keyless Entry Module
Power Windows
Underhood Fuse/Relay 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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Name
ECM-B
RR DEFOG
IGN-E
Circuits Protected
Fuel Pump, PCMNCM
Rear Window Defogger
Auxiliary Fan Relay Coil,
A/C Compressor Relay,
Hot Fuel Module
Name
FUEL SOL
GLOW PLUG
HORN
AUX FAN
ECM-
1
AIC ENG-
1
LIGHTING
BATT
IGN-A IGN-B
ABS
BLOWER
STOP/HAZ
Circuits Protected
Fuel Solenoid (Diesel Engine)
Glow plugs (Diesel Engine)
Horn, Underhood Lamps
Auxiliary Fan
Injectors, PCMNCM
Air Conditioning
Ignition 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 and Rear
Blower Relays
Stoplamps
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Replacement Bulbs
LAMP OR BULB
HEADLAMPS
2 Headlamp System (Sealed Beam)
Low/High Beam
4 Headlamp System (Composite)
Low-Beam High-Beam
LAMP OR BULB
EXTERIOR
Front Marker Lamp
Front Parking and
Turn Lamp
Rear Parking Lamp
Rear Stop and Turn Lamp
Back-up Lamp Roof Marker Lamp*
License Plate Lamp
Underhood Lamp
Reel Lamp
*Suburban
Only
TRADE NO.
H6054
9006
9005
TRADE NO.
194
2357NA
3057
3057
3 156
194
194
93
232
POWER RATING AT
12.8V, WATTS
35/65
55
65
QTY
2
4 2
2
2
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LAMP OR BULB
INTERIOR
Dome Lamps
Reading Lamps
Roof Console Lamps*
Door Courtesy Lamp
Four-Wheel-Drive Indicator
Four-Wheel-Drive Shift Lever
Instrument Panel Compartment Lamp
Ashtray Lamp Sunshade Vanity Mirror
*Suburban Only
TRADE NO.
211-2
211-2 168
194
194
194
194
194
74 2
4
2
214"
1
1
1
1
4
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Capacities and Specifications
Please refer to “Recommended Fluids and Lubricants”
in the Index for more information.
Type
RPO Code
VIN Code
Fuel System
Engine Identification -- Gasoline Engines
Engine “VORTEC” “VORTEC”
5700 7400
V8 V8
L3 1 L29
R J
SFI* SFI*
*Sequential Fuel Injection
Wheels and Tires
MODEL DESCRIPTION
C 1500 5 bolts ( 14 mm)
K 1500, 6 bolts (14 mm)
C-IS
2500
TORQUE
(190 Nam)
(190 N-m) 140 lb-ft
140 lb-ft
C-K 2500 8 bolts ( 14 mm) 140 lb-ft
(190 N-m)
Tire Pressure See the Certificationmire label on
the rear edge of the driver’s door
or the incomplete vehicle document in the cab.
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Normal Maintenance Replacement Parts -- Gasoline Engines
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
“VORTEC” 5700
VIN R
Oil Filter AC Type PF1218f
Air Cleaner Filter AC Type A1300C
Spark Plugs
AC Type 4 1-932
Spark Plug Gap 0.060
in. (1.52 mm)
Fuel Filter AC Type GF626
Wiper Blades (Front) GM Part No. 22154886
Wiper Blade Type (Front) Trico
Wiper Blade Length (Front) 18 inches (45.0 cm)
Wiper Blade (Rear) GM Part
No. 22154396
Wiper Blade Type (Rear) Trico
Wiper Blade Length (Rear) 14 inches (35.5 cm)
“four-Wheel-Drive Vehicles
-- use a PF52 oil filter.
‘VORTEC” 7400
J
AC Type PF1218
AC Type A1300C AC Type 41-932
0.060 in. (1.52 mm)
AC Type GF626
GM Part
No. 22154886
Trico
18 inches
(45.0 cm)
GM Part No. 22154396
Trico
14 inches (35.5 cm)
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Cooling System Capacity (Approximate)
After refill, the level must be rechecked. See “Cooling System” in the Index.
ENGINE VIN QTY Without Rear Heater
“VORTEC” 5700 R 17.5 Quarts (16.5 L)
“VORTEC” 7400 J 25 Quarts (23.5 L)
Crankcase Capacity (Approximate)
After refill, the level must be rechecked. See “Engine Oil” in the Index.
ENGINE VIN QUANTITY WITH FILTER?
“VORTEC” 5700 R 5 Quarts (4.8 L)
“VORTEC” 7400 J 7 Quarts (6.5 L)
?Oil filter should be changed at every oil change.
QTY With Rear Heater
20 Quarts (19 L)
27.5 Quarts (26 L)
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