2005 CHEVROLET ASTRO radio

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 res 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.
Spare fuses and a fuse puller are located in the
underhood fuse block. You can remove fuses with the
fuse puller. Remember to replace any of the spare
fuses you use, so you will have some if you ever need
them again.If you ever have a problem on the road and do not 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.
There are two fuse blocks in your vehicle: one is inside
the vehicle and one is in the engine compartment.
5-95

Instrument Panel Fuse Block
The fuse block is located on the lower portion of the
instrument panel on the driver’s side.
Fuse/Circuit
BreakerUsage
1Stop/Turn/Hazard Lamps,
Center High-Mounted Stop Lamp,
Anti-Lock Brakes
2Radio Accessory, Rear Seat
Audio Controls
5-96

Fuse/Circuit
BreakerUsage
3Courtesy Lamps, Glove Box Lamp,
Dome Reading Lamps, Vanity Mirror
Lamps, Courtesy Lamps
4Daytime Running Lamps Relay,
Instrument Panel Cluster
5 Rear Defogger
6Cruise Module, Truck Body Control
Module, Instrument Panel Cluster,
Cruise Control Switch,
Electrochromic Mirror
7 Power Outlets, Subwoofer Amplier
8Crank Circuit Fuse, Park/Neutral
Switch, Starter Enabler Relay
9License Plate Lamp, Tailamps,
Parking Lamps, Ashtray Lamp,
Panel Lights, Trailer Taillamps,
Front and Rear Sidemarker Lamps,
Door Switch Illumination, Headlamp
Switch Illumination, Rear Seat
Audio Illumination, Truck Body
Control Module
10 Air Bag SystemFuse/Circuit
BreakerUsage
11 Not Used
12Blower Motor, Rear Air Conditioning
Relay Coil, Front Cont. Temp.
Door Motor, HI Blower Relay,
Defogger Timer Coil
13Cigarette Lighter, Door Lock
Switches, Dutch Door Release
Module
14Cluster Illumination, Climate
Controls, Chime Module, Radio
Illumination, Rear Heat Switch
Illumination, Rear Wiper/Washer
Switch Illumination, Rear Liftgate
Switch Illumination, Remote
Cassette Illumination, Overhead
Console, Truck Body Control
Illumination
15Truck Body Module,
Headlamp Relay
16Front Turn Signals, Rear Turn
Signals, Trailer Turn Signals,
Back-Up Lamps, Brake
Transmission Shift Interlock
Solenoid
5-97

Fuse/Circuit
BreakerUsage
17 Front Wipers, Front Washer Pump
18VCM-Ign 3, VCM-Brake, Cruise
Stepper Motor Signal, ATC Module
19Instrument Panel Radio: ATC
(Main Feed), 2000 Series (Standby)
20PRNDL/Odometer, Shift A and
Shift B Solenoids, 3–2 Downshift
Solenoid, Instrument Panel Cluster,
VCM Module
21 Power Adjust Mirrors
22 Not Used
23 Rear Wiper, Rear Washer Pump
24 Not Used
Circuit
BreakersUsage
APower Door Lock Relay,
6–Way Power Seats
B Power Windows
Underhood Fuse Block
The underhood fuse block is located toward the rear
of the engine compartment on the driver’s side of
the vehicle.
Lift the hood and open the cover to gain access to this
fuse block.
A fuse puller is included in the underhood fuse block.
You will also nd spare fuses.
5-98

Fuse/Circuit
BreakerUsage
BLANK Not Used
BLANK Not Used
DIODE-1 Air Conditioning
BLANK Not Used
BLANK Not Used
BLANK Not Used
LIGHTINGCourtesy Fuse, Power Adjust
Mirrors Fuse, Truck Body Control
Battery Fuse
BATTPower Accessory Circuit Breaker,
Stop/Hazard Fuse, Auxiliary Power
Fuse, Cigarette Lighter Fuse,
Radio Battery Fuse
IGN A Starter Relay, Ignition Switch
IGN B Ignition Switch
ABSElectronic Brake
Control Module
BLANK Not Used
RAP Radio Accessory, Power Windows
HTD MIR/RR
DEFOGRear Window Defogger,
Climate Control HeadRelays Usage
A/C RELAY Rear/Heat and Air Conditioning
UPFITTER-
ACCY RELAYUptter Accessory
STARTER
ENABLE
RELAYStarter
A/C ENABLE
RELAYAir Conditioning
HEAD LAMPS
RELAYHeadlamps
FUEL PUMP
RELAYFuel Pump
Feed Usage
AUX B Uptter Battery Feed
AUX A Uptter Accessory Feed
5-100

A
Accessory Power Outlets.................................3-17
Adding Equipment to Your Airbag-Equipped
Vehicle.......................................................1-70
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment............................5-94
Air Cleaner/Filter, Engine.................................5-21
Air Conditioning..............................................3-19
Airbag
Readiness Light..........................................3-26
Airbag Sensing and Diagnostic Module (SDM)....7-10
Airbag System................................................1-63
Adding Equipment to Your Airbag-Equipped
Vehicle...................................................1-70
How Does an Airbag Restrain?......................1-68
Servicing Your Airbag-Equipped Vehicle..........1-69
What Makes an Airbag Inate?......................1-67
What Will You See After an Airbag Inates?....1-68
When Should an Airbag Inate?....................1-66
Where Are the Airbags?...............................1-65
All-Wheel Drive...............................................5-47
All-Wheel Drive (AWD) System.........................2-23
All-Wheel-Drive Service Light............................3-34
AM-FM Radio.................................................3-40
Antenna, Fixed Mast.......................................3-50
Anti-Lock Brake System (ABS)........................... 4-7
Anti-Lock Brake, System Warning Light..............3-29Appearance Care............................................5-84
Aluminum Wheels........................................5-90
Care of Safety Belts....................................5-87
Chemical Paint Spotting...............................5-91
Cleaning Exterior Lamps/Lenses....................5-88
Fabric/Carpet..............................................5-85
Finish Care.................................................5-88
Finish Damage............................................5-91
Glass Surfaces............................................5-87
Instrument Panel.........................................5-87
Interior Plastic Components...........................5-87
Leather......................................................5-87
Sheet Metal Damage...................................5-91
Tires..........................................................5-90
Underbody Maintenance...............................5-91
Vehicle Care/Appearance Materials................5-92
Vinyl..........................................................5-86
Washing Your Vehicle...................................5-88
Weatherstrips..............................................5-88
Windshield and Wiper Blades........................5-89
Ashtrays........................................................3-18
Audio System(s).............................................3-39
AM-FM Radio.............................................3-40
Care of Your CD Player...............................3-50
Care of Your CDs........................................3-50
Fixed Mast Antenna.....................................3-50
Radio with CD............................................3-42
Rear Seat Audio (RSA)................................3-46
1

Audio System(s) (cont.)
Setting the Time for Radios with
HR and MN Buttons.................................3-40
Setting the Time for Radios with the
Set Button..............................................3-40
Theft-Deterrent Feature................................3-48
Understanding Radio Reception.....................3-50
Automatic Headlamp System............................3-16
Automatic Transmission
Fluid..........................................................5-23
Operation...................................................2-20
B
Battery..........................................................5-42
Run-Down Protection...................................3-17
Before Leaving on a Long Trip.........................4-20
Bench Seat....................................................1-11
Brake
Anti-Lock Brake System (ABS)........................ 4-7
Emergencies................................................ 4-8
Parking......................................................2-23
System Inspection.......................................6-29
System Warning Light..................................3-28
Brakes..........................................................5-38
Braking........................................................... 4-6
Braking in Emergencies..................................... 4-8
Break-In, New Vehicle.....................................2-16
Bucket Seats, Rear.........................................1-17Bulb Replacement...........................................5-50
Front Turn Signal and Parking Lamps.............5-54
Halogen Bulbs............................................5-50
Replacement Bulbs......................................5-56
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps........................................5-55
Buying New Tires...........................................5-67
C
California Fuel.................................................. 5-6
Canadian Owners................................................ ii
Capacities and Specications..........................5-101
Carbon Monoxide...........................2-26, 4-23, 4-34
Care of
Safety Belts................................................5-87
Your CD Player...........................................3-50
Your CDs ...................................................3-50
Center Rear Passenger Position, Safety Belts.....1-34
Chains, Tire...................................................5-71
Charging System Light....................................3-27
Check
Engine Light...............................................3-30
Gages Warning Light...................................3-35
Checking Things Under the Hood......................5-10
Chemical Paint Spotting...................................5-91
Child Restraints
Child Restraint Systems...............................1-46
Infants and Young Children...........................1-40
2

Q
Questions and Answers About Safety Belts.........1-22
R
Radiator Pressure Cap....................................5-28
Radios..........................................................3-39
AM-FM Radio.............................................3-40
Care of Your CD Player...............................3-50
Care of Your CDs........................................3-50
Radio with CD............................................3-42
Rear Seat Audio..........................................3-46
Setting the Time for Radios with
HR and MN Buttons.................................3-40
Setting the Time for Radios with the
Set Button..............................................3-40
Theft-Deterrent............................................3-48
Understanding Reception..............................3-50
Rear Air Conditioning System...........................3-22
Rear Axle......................................................5-48
Locking........................................................ 4-8
Rear Doors....................................................2-11
Rear Heating System......................................3-21
Rear Safety Belt Comfort Guides......................1-35Rear Seat Audio (RSA)....................................3-46
Rear Seat Operation......................................... 1-7
Rear Seat Passengers, Safety Belts..................1-31
Rearview Mirrors.............................................2-28
Reclining Seatbacks.......................................... 1-4
Recreational Vehicle Towing.............................4-34
Remote Keyless Entry System............................ 2-3
Remote Keyless Entry System, Operation............ 2-4
Removing the Flat Tire and Installing the
Spare Tire..................................................5-76
Removing the Spare Tire and Tools...................5-73
Replacement Bulbs.........................................5-56
Reporting Safety Defects
Canadian Government..................................7-11
General Motors...........................................7-12
United States Government............................7-11
Restraint System Check
Checking Your Restraint Systems...................1-70
Replacing Restraint System Parts
After a Crash..........................................1-71
Restraint Systems
Checking....................................................1-70
Replacing Parts...........................................1-71
Retained Accessory Power (RAP)......................2-18
Right Front Passenger Position, Safety Belts......1-31
10