CHEVROLET IMPALA 2002 8.G Owners Manual

6-62 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.
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.
Driver's Side Instrument Panel Fuse Block
Some fuses are in a fuse
block at the end of the
instrument panel on the
driver's side of the vehicle.
Pull off the cover labeled
FUSES to expose the fuses.
Mini Fuses Description
PCM/BCM/
CLSTRPowertrain Control Module,
Body Control Module,
Cluster (Ignition 0)
WSW Windshield Wipers,
Windshield Washer
PCM (CRANK) Powertrain Control
Module (Crank)

6-63
Mini Fuses Description
CIG/AUX Accommodated
Device (Accessory)
BCM Body Control Module (Accessory)
SRS Supplemental Restraint System
ABS/PCM Anti
-Lock Brake System,
Powertrain Control Module, Brake
Switch, Crank Relay, Canister
Vent Solenoid (Run, Crank)
STOP Brake Lamps, Body Control
Module (Run, Crank)
TURN SIGNAL Turn Signal Flashers
CRUISE Cruise Control Steering
Column Controls
AC/CRUISE HVAC Temp Door Motors &
Module, Cruise Control Module
A/C FAN HVAC Blower
STR COL Steering Wheel LightingMini Fuses Description
DR LK Body Control Module,
Door Lock Controls
PWR MIR Power Mirrors
CLSTR/BCM Cluster, Body Control Module,
Data Link Connector (Battery),
TrapAlert
System
LH HTD
ST/BCMDriver's Heated Seat, Body
Control Module, Battery
Controlled Loads
Circuit Breaker Description
RETAINED
ACCESSORY
PWR BRKRPower Window, Sunroof Breaker
Circuit Relay Description
HEADLAMP
RELAYHeadlamp Relay
RETAINED
ACCESSORY
PWR RELAYRetained Accessory Power Relay

6-64
Passenger's Side Instrument Panel Fuse Block
Some fuses are in a fuse
block at the end of the
instrument panel on the
passenger's side of the
vehicle. Pull off the cover
labeled FUSES to expose
the fuses.
Mini Fuses Description
RH HTD ST Passenger Heated Seat
PWR DROP Accommodated Device
B/U LP Back
-Up Lamps
DIC/RKE Driver Information Center,
Remote Keyless Entry, HVAC

6-65
Mini Fuses Description
TRK/
ROOF BRPTrunk Lamps, Headliner Lamps
HVAC BLO HVAC Blower Relay
I/P BRP Instrument Panel Footwell Lamps,
Glovebox Lamps
HTD MIR Heated Mirrors
BRK SW Brake Switch
HAZ SW Hazard Switch
REAR PRK LP Rear Parking Lamps
AUX PWR Accessory Power Outlet (Battery)
C/LTR Cigarette Lighter
RADIO Radio, Radio Amplifier
FRT PARK LP Front Parking Lamps,
Instrumentation Lighting Circuit Relay Description
PARK
LP RELAYParking Lamp Relay
BACK UP
LP RELAYBack
-up Lamps Relay
BATT RUN
DOWN
PROTECTION
RELAYBattery Run Down
Protection Relay
REAR
DEFOG RELAYRear Defogger Relay,
Heated Mirror Relay
Circuit Breaker Description
POWER
SEATS BRKRPower Seat Circuit Breaker
REAR
DEFOG BRKRRear Defogger Breaker

6-66
Underhood Fuse Block (Upper)
Some fuses are in a fuse block in the engine
compartment on the passenger's side of the vehicle.
See ªEngine Compartment Overviewº in the Index
for more information on location.
Circuit Relay Description
FUEL PUMP Fuel Pump
DRL RELAY Daytime Running Lamps
A.I.R. RELAY Air Induction Reaction Relay
CRANK RLY Starter (Crank) RelayCircuit Relay Description
HORNS Horn
FOG LTS Fog Lamps
Maxi Fuses Description
LEFT I/P Left Fuse Block (Battery)
RT I/P #1 Right Fuse Block (Battery)
RT I/P #2 Right Fuse Block (Battery)
U/HOOD #1 Underhood (Top) Fuse Block
Mini Fuses Description
HORN RLY Horn Relay
BLANK Blank
BLANK Blank
FOG RLY Fog Lamps Relay
F/PMP RLY Fuel Pump Relay
DRL/EXIT LTS Low (Left Front) & High
(Left Front) Headlamps
EXT LTS Low (Right Front) & High
(Right Front) Headlamps
PCM PCM Battery
A/C RLY
(CMPR)HVAC Compressor
Relay & Generator

6-67
Underhood Fuse Block (Lower)
Some fuses are in a fuse block in the engine
compartment on the passenger's side of the vehicle.
See ªEngine Compartment Overviewº in the Index
for more information on location.Circuit Relay Description
FAN CONT #3 Secondary Cooling Fan
(Passenger's Side)
FAN CONT #2 Cooling Fan Control Relay
FAN CONT #1 Primary Cooling Fan
(Driver's Side)
IGN RELAY Ignition Relay
A/C CMPR HVAC Compressor
Maxi Fuses Description
IGN SW Ignition Switch
RT I/P #3 Rear Defogger, Audio System
U/HOOD #2 Ignition Relay, AIR Pump
COOLING
FANSCooling Fans (Battery)

6-68
Mini Fuses Description
FAN
CONT #2 & #3Cooling Fan Control
Relays #2 & #3
FAN CONT #1 Cooling Fan Control Relays #1
AIR PMP RLY Air Induction Reaction Pump
Relay (Battery)
FUEL INJ Fuel Injectors
TRANS SOL Transmission Solenoids
A/C
RLY (COIL)HVAC Control Relay
ENG DEVICES Canister Purge Solenoid, Mass Air
Flow Sensor (MAF), AIR Pump
Relay & Valve Control
DFI MDL Direct Fire Ignition Module
OXY SEN Oxygen Sensors
(Pre and Post Converter)Replacement Bulbs
Lamps Bulb Number
Back
-Up 921. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Parking/Turn Signal 3357NAK or. . . . . . . . . . .
3457NAK
Headlamp, High
-Beam 9005. . . . . . . . . . . . . . . . . . .
Headlamp, Low
-Beam 9006. . . . . . . . . . . . . . . . . . . .
Tail/Stop/Turn Signal 3057. . . . . . . . . . . . . . . . . . . . .
For any bulb not listed here, contact your dealer.
Capacities and Specifications
Please refer to ªRecommended Fluids and Lubricantsº
in the Index for more information.
Automatic Transaxle
Pan Removal and Replacement 7.4 quarts (7.0 L). . .
After Complete Overhaul 10.0 quarts (9.5 L). . . . . . .
When draining/replacing converter, more fluid may
be needed
.
Cooling System Including Reservoir
3400 (Code E) V6 11.3 quarts (10.7 L). . . . . . . . . . .
3800 (Code K) V6 11.7 quarts (11.0 L). . . . . . . . . . .

6-69
Engine Oil with Filter
3400 (Code E) V6 4.3 quarts (4.1 L). . . . . . . . . . . .
3800 (Code K) V6 4.3 quarts (4.1 L). . . . . . . . . . . .
Fuel Tank17.0 U.S. gallons (64.0 L) . . . . . . . . . . . .
Wheel Nut Torque100 lb
-ft (140 N´m) . . . . . . . . . .
All capacities are approximate. When adding, be sure
to fill to the approximate level, as recommended in this
manual. See ªRecommended Fluids and Lubricantsº
in the Index.
Engine Specifications
3400 (LA1) V6 Engine
Type V6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VIN Code E. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displacement 204 CID. . . . . . . . . . . . . . . . . . . . . . . .
Firing Order 1
-2-3-4-5-6 . . . . . . . . . . . . . . . . . . . . . .
3800 (L36) V6 Engine
Type V6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VIN Code K. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displacement 231 CID. . . . . . . . . . . . . . . . . . . . . . . .
Firing Order 1
-6-5-4-3-2 . . . . . . . . . . . . . . . . . . . . . .
Air Conditioning
Refrigerant Capacity
If you do your own service work, you'll need the proper
service manual. See ªDoing Your Own Service Workº in
the Index for additional information. It is recommended
that service work on your air conditioning system be
performed by a qualified technician.
Air Conditioning
Refrigerant R±134a 2.3 lbs. (1.09 kg). . . . . . . . . . .
Use Refrigerant R134a System

6-70
Normal Maintenance
Replacement Parts
Engine Air Cleaner/Filter
All Engines A1614C*. . . . . . . . . . . . . . . . . . . . . . . .
Passenger Compartment Air Filter
All Engines GM Part No. 10406026. . . . . . . . . . . . .
Engine Oil Filter
All Engines PF47*. . . . . . . . . . . . . . . . . . . . . . . . . . Spark Plugs
3400 (Code E) V6 41
-940* . . . . . . . . . . . . . . . . . . .
Gap: 0.060 inches (1.52 mm)
3800 (Code K) V6 41
-921* . . . . . . . . . . . . . . . . . . .
Gap: 0.060 inches (1.52 mm)
Windshield Wiper Blades
Length 22.0 inches (56.0 cm). . . . . . . . . . . . . . . . . .
Type Shepherd's Hook. . . . . . . . . . . . . . . . . . . . . . . .
*AC Delco

part number.

7-
7-1
Section 7 Maintenance Schedule
This section covers the maintenance required for your vehicle. Your vehicle needs these services to retain its safety,
dependability and emission control performance.
7
-2 Introduction
7
-4 Part A: Scheduled Maintenance Services
7
-5 Scheduled Maintenance
7
-16 Part B: Owner Checks and Services7
-20 Part C: Periodic Maintenance Inspections
7
-22 Part D: Recommended Fluids and Lubricants
7
-23 Part E: Maintenance Record