fuse CHEVROLET IMPALA 2001 8.G User Guide

6-11
When you open the hood on the 3800 V6 (Code K) engine, you'll see:
A. Windshield Washer
Fluid Reservoir
B. Underhood Fuse Block
C. Radiator Pressure CapD. Engine Coolant Reservoir
E. Power Steering Fluid Reservoir
(low in engine compartment)
F. Engine Oil DipstickG. Engine Oil Fill Cap
H. Transaxle Fluid Dipstick
I. Brake Fluid Reservoir
J. Engine Air Cleaner/Filter
Before closing the hood, be sure all the filler caps are on properly. Then pull the hood down and close it firmly.

6-26
NOTICE:
If you use an improper coolant mixture, your
engine could overheat and be badly damaged.
The repair cost wouldn't be covered by your
warranty. Too much water in the mixture can
freeze and crack the engine, radiator, heater core
and other parts.
If you have to add coolant more than four times a year,
have your dealer check your cooling system.
NOTICE:
If you use the proper coolant, you don't have to
add extra inhibitors or additives which claim to
improve the system. These can be harmful.
Checking Coolant
The coolant recovery tank is located between the power
steering fluid reservoir and the underhood fuse block
on the passenger's side of the engine compartment.
See ªEngine Compartment Overviewº in the Index
for more information on location.

6-60
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 ªServicing
Your Air Bag
-Equipped Vehicleº in the Index.
Headlamp Wiring
The headlamp circuit is protected by individual fuses in
the underhood electrical center. An electrical overload
will cause the fuse to blow. If this happens, have your
headlamp system 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,
have it fixed.
Power Windows and Other Power Options
A circuit breaker in the driver's side fuse panel protects
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.

6-61 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 on the driver's side
of the instrument panel.
Pull off the cover labeled
FUSES to expose the fuses.
Circuit Relay Description
HEADLAMP
RELAYHeadlamp Relay
RETAINED
ACCESSORY
PWR RELAYRetained Accessory Power Relay

6-62
Circuit
BreakerDescription
RETAINED
ACCESSORY
PWR BRKRPower Window, Sunroof Breaker
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)
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)Mini Fuses Description
STOP Brake Lamps, Body Control
Module (Run, Crank)
TURN SIGNAL Turn Signal Flashers
CRUISE Cruise Control Steering
Column Controls
A/C/CRUISE HVAC Temp Door Motors &
Module, Cruise Control Module
A/C FAN HVAC Blower
STR COL Steering Wheel Lighting
DR LK Body Control Module,
Door Lock Controls
PWR MIR Power Mirrors
CLSTR/BCM Cluster, Body Control Module,
Data Link Connector (Battery)
LH HTD
ST/BCMDriver's Heated Seat, Body
Control Module, Battery
Controlled Loads

6-63
Passenger's Side Instrument Panel Fuse Block
Some fuses are in a fuse
block on the passenger's
side of the instrument panel.
Pull off the cover labeled
FUSES to expose the fuses.
Additional fuses are in the underhood electrical center
on the passenger's side of the engine compartment.
Circuit Relay Description
PARK LP RELAY Parking Lamp Relay
BACKUP LP RELAY Back
-up Lamps Relay
BATT RUN DOWN
PROTECTION RELAYBattery Run Down
Protection Relay
REAR DEFOG RELAY Rear Defog Relay,
Heated Mirror Relay

6-64
Circuit Breaker Description
POWER SEATS BRKR Power Seat Circuit Breaker
REAR DEFOG BRKR Rear Defog Breaker
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
TRK/ROOF BRP Trunk Lamps,
Headliner Lamps
HVAC BLO HVAC Blower RelayMini Fuses Description
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

6-65
Underhood Fuse Block (Upper)
Some fuses are in a fuse block on the passenger's side of the
engine compartment. 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) Relay
HORNS Horn
FOG LTS Fog LampsMaxi Fuses Description
LEFT I/P Left Bussed Electrical
Center (Battery)
RT I/P #1 Right Bussed Electrical
Center (Battery)
RT I/P #2 Right Bussed Electrical
Center (Battery)
U/HOOD #1 Underhood (Top) Electrical Center
Mini Fuses Description
HORN RLY Horn Relay
BLANK Blank
BLANK Blank
FOG RLY Fog Lamp 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

6-66
Underhood Fuse Block (Lower)
Some fuses are in a fuse block on the passenger's side of
the engine compartment. 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)Circuit Relay Description
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)
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)