CHEVROLET ASTRO CARGO VAN 2005 2.G Owners Manual

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.
Instrument Panel Fuse Block
The fuse block is located on the lower portion of the
instrument panel on the driver’s side.
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Fuse/Circuit
BreakerUsage
1Stop/Turn/Hazard Lamps, Center
High-Mounted Stop Lamp, Anti-Lock
Brakes
2Radio Accessory, Rear Seat Audio
Controls
3Courtesy Lamps, Glove Box Lamp,
Dome Reading Lamps, Vanity Mirror
Lamps, Courtesy Lamps
Fuse/Circuit
BreakerUsage
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 System
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
5-94

Fuse/Circuit
BreakerUsage
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
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)Fuse/Circuit
BreakerUsage
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
5-95

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.
5-96

Fuse/Circuit
BreakerUsage
UPFITTER-
BATTUptter Battery Power Stud, Trailer
Wiring Harness
UPFITTER-
ACCYUptter Accessory Relay
SPARE Spare
SPARE Spare
SPARE Spare
ECM-1BFuel Pump Relay and Motor, VCM,
Oil Pressure Switch/Sender
HORN Horn Relay and Horn
A/C COMPAir Conditioning Enable Relay and
Compressor
RR HTR/AC Rear Heater and Air Conditioning
ATC Active Transfer Case-L Van
FRT HVAC Front Heater and Air Conditioning
ENG-IOxygen Sensors, Camshaft Position
Sensor, Mass Air Flow Sensor,
Evaporative Emission Canister Vent
SolenoidFuse/Circuit
BreakerUsage
IGN-E Air Conditioning Enable Relay Coil
ECM-IFuel Injectors 1–6, Crankshaft
Position Sensot, VCM, Coil Driver
Module (EST), Ignition Coil
BLANK Not Used
RH HDLMP Right Headlamp
LH HEADLAMP Left Headlamp
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
5-97

Fuse/Circuit
BreakerUsage
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
5-98

Capacities and Specications
The following approximate capacities are given in English and metric conversions. Please refer toPart D:
Recommended Fluids and Lubricants on page 6-29for more information.
Capacities and Specications
ApplicationCapacities
English Metric
Air Conditioning Refrigerant (R134a)
Front A/C 2.3 lbs 1.0 kg
Front and Rear A/C 3.0 lbs 1.4 kg
Cooling System
Without Rear Heater 13.5 qt 12.8 L
With Rear Heater 16.5 qt 15.6 L
Differential Fluid
Front Axle 2.6 pt 1.2 L
Rear Axle 3.5 pt 1.7 L
5-99

Capacities and Specications (cont’d)
ApplicationCapacities
English Metric
Engine Oil with Filter 4.5 qt 4.3 L
Fuel Tank 27.0 gal 101.8 L
Transmission Fluid (Drain and Rell) 5.0 qt 4.7 L
Wheel Nut Torque 140 ft lb 190Y
All capacities are approximate. When adding, be sure to ll to the appropriate level, as recommended in this
manual. Recheck the uid level after lling. See refrigerant charge label under the hood for charge capacity
information and requirements.
Engine Specications
Engine VIN Transmission Spark Plug Gap
“Vortec” 4300 V6 MFI* LU3 Automatic 0.060 inches (1.52 mm)
*Micro Fuel Injection
5-100

Normal Maintenance Replacement Parts
Replacement parts identied below by name, part number, or specication can be obtained from your dealer.
Part GM Part Number ACDelco®Part Number
Engine Air Cleaner/Filter 25098463 A1163C
Engine Oil Filter 25010792 PF47
Fuel Filter 15050894 GF481
PCV Valve 6487532 CV 769-C
Spark Plugs 25162556 41–932
Wiper Blades (Trico Type)
Front – 18 inches (45.7 cm) 22110431 —
Rear – 14 inches (35.5 cm) 22121329 —
5-101

✍NOTES
5-102