ignition CHEVROLET EXPRESS CARGO VAN 2001 1.G Service Manual

3-34
TAPE CD: With a CD in the player and the radio
playing, press this button to play a CD. Press AM FM to
return to the radio when a CD is playing. Press TAPE
CD to switch between the tape and compact disc if both
are loaded. The inactive tape or CD will remain safely
inside the radio for future listening.
: Press this button located below the CD slot to
remove the disc. The radio will play. EJT may be
activated with either the ignition or radio off. CDs may
be loaded with the radio and ignition off if this button is
pressed first.
CAL ERR: This message is displayed when the radio
has not been calibrated properly for the vehicle. You
must return to the dealership for service.
LOCKED: This message is displayed when the
THEFTLOCK

system has locked up. You must
return to the dealership for service.
AM-FM Stereo with 6-Disc Compact Disc
Player with Programmable Equalization
and Radio Data System (RDS) (Option)
Playing the Radio
VOLUME
-PWR: Press this knob to turn the system on
and off. To increase volume, turn the knob clockwise.
Turn it counterclockwise to decrease volume.

3-38
P-TYPE: This button is used to turn on and off
Program Type (PTY) select. PTY and the light next to
the button will turn on. The last selected PTY will
appear on the display for five seconds. Turn the P
-TYPE
knob to select the PTY you want to listen to. Press
SEEK or SCAN to find radio stations of the PTY you
want to listen to. The last PTY selected will be used for
seek or scan modes. If a station with the selected PTY is
not found, NONE FOUND will appear on the display.
If both P
-TYPE and TRAF are on, the radio will
search for stations with traffic announcements and the
selected PTY.
To use the P
-TYPE interrupt feature, press and hold the
P
-TYPE button until you hear a beep on the PTY you
want to interrupt on. When you are listening to a
compact disc, the last selected RDS FM station will
interrupt play if that selected PTY format is broadcast.
PUSHBUTTONS: The six numbered pushbuttons let
you return to your favorite Program Types (PTYs).
These buttons have factory PTY presets. You can set up
to 12 PTYs (six FM1 and six FM2) by performing the
following steps:
1. Press P
-TYPE, if it is not already on.
2. Press AM FM to select FM1 or FM2.3. Turn the SELECT knob to select a PTY.
4. Press and hold one of the six numbered buttons until
you hear a beep. Whenever you press that numbered
button, the PTY you set will return.
5. Repeat the steps for each pushbutton.
ALERT!: This type of announcement warns of national
or local emergencies. You will not be able to turn off
alert announcements. ALERT! appears on the display
when an alert announcement plays. When an alert
announcement comes on the tuned radio station, you
will hear it, even if the volume is muted or a compact
disc is playing. If the compact disc player is playing,
play will stop for the announcement and resume when
the announcement is finished.
ALTERNATE FREQUENCY: This feature allows the
radio to switch to a stronger station with the same
program type. Press and hold AM FM for two seconds
to turn alternate frequency on. AF ON will appear on the
display. The radio may switch to stronger stations. Press
and hold AM FM again for two seconds to turn alternate
frequency off. AF OFF will appear on the display. The
radio will not switch to other stations. When you turn
the ignition off and then on again, the alternate
frequency feature will automatically be turned on.

3-39
Adjusting the Speakers
BAL
-FADE: The AUDIO knob adjusts balance and
fade. To adjust balance, press the AUDIO knob until
BAL appears on the display. Turn the knob to adjust the
sound to the left or right speakers. The middle position
balances the sound between the speakers. To adjust fade,
press and hold the AUDIO knob until FAD appears on
the display. Turn the knob to adjust the sound to the
front or rear speakers. The middle position balances the
sound between the speakers.
To set the balance and fade to the middle position, select
balance or fade and press and hold the AUDIO knob.
The radio will beep once and will set the display level to
the middle position. To set all tone and speaker controls
to the middle position, press and hold the AUDIO knob
when tone or speaker controls are not active. The radio
will produce one beep and CENTERED will appear on
the display.Playing a Compact Disc
LOAD: This compact disc player will accommodate up
to six discs.
To insert one disc do the following:
1. Turn the ignition on.
2. Press and release the LOAD button.
3. Wait for the light, located to the right of the slot, to
turn green.
4. Load a disc. Insert a disc partway into the slot, label
side up. The player will pull the disc in.
When the disc is inserted, the CD symbol will be
displayed. If you select an EQ setting for your disc,
it will be activated each time you play a disc.
5. If the radio is on or off, the disc will begin to
play automatically.

3-40
To insert multiple discs do the following:
1. Turn the ignition on.
2. Press and hold the LOAD button for two seconds.
You will then hear a beep and the light, located to the
right of the slot, will begin to flash.
3. Once the light stops flashing and turns green, load a
disc. Insert a disc partway into the slot, label side up.
The player will pull the disc in.
Once the disc is loaded, the light will begin flashing
again. Once the light stops flashing and turns green
you can then load another disc. The disc player takes
up to six discs. Do not try to load more than six.
When a disc is inserted, the CD symbol will be
displayed. If more than one disc has been loaded, a
CD symbol for each disc will be displayed. If you
select an EQ setting for your disc, it will be activated
each time you play a disc.
4. If the radio is on or off, the last disc loaded will
begin to play automatically.
5. To load more than one disc but less than six,
complete steps 1, 2 and 3. When you have finished
loading discs, with the radio on or off, press LOAD
to cancel the loading function. The radio will begin
to play the last CD loaded.As each new track starts to play, the track number will
appear on the display.
If CHECK CD appears on the radio display, it could
be that:

The road is too rough. The disc should play when the
road is smoother.

The disc is dirty, scratched, wet or upside down.

The air is very humid. If so, wait about an hour and
try again.
If any error occurs repeatedly or if an error can't be
corrected, please contact your dealer. If your radio
displays an error message, write it down and provide it
to your dealer when reporting the problem.
Playing a Specific Loaded CD: For every CD loaded, a
number will appear on the radio display. To play a
specific CD, first press the CD AUX button to start
playing a CD. Then press the numbered button that
corresponds to the CD you want to play. A small bar
will appear under the CD number that is playing, and the
track number will appear.

3-46 Care of Your Cassette Tape Player
A tape player that is not cleaned regularly can cause
reduced sound quality, ruined cassettes or a damaged
mechanism. Cassette tapes should be stored in their
cases away from contaminants, direct sunlight and
extreme heat. If they aren't, they may not operate
properly or may cause failure of the tape player.
Your tape player should be cleaned regularly after every
50 hours of use. Your radio may display CLN to indicate
that you have used your tape player for 50 hours without
resetting the tape clean timer. If this message appears on
the display, your cassette tape player needs to be
cleaned. It will still play tapes, but you should clean it as
soon as possible to prevent damage to your tapes and
player. If you notice a reduction in sound quality, try a
known good cassette to see if it is the tape or the tape
player at fault. If this other cassette has no improvement
in sound quality, clean the tape player.The recommended cleaning method for your cassette
tape player is the use of a scrubbing action,
non-abrasive cleaning cassette with pads which scrub
the tape head as the hubs of the cleaner cassette turn.
The recommended cleaning cassette is available through
your dealer (GM Part No. 12344789).
When using a scrubbing action, non
-abrasive cleaning
cassette, it is normal for the cassette to eject because
your unit is equipped with a cut tape detection feature
and a cleaning cassette may appear as a broken tape. To
prevent the cleaning cassette from being ejected, use the
following steps.
1. Turn the ignition to RUN or ACCESSORY.
2. Turn the radio off.
3. Press and hold the TAPE AUX button for five
seconds. The tape symbol on the display will flash
for two seconds.
4. Insert the scrubbing action cleaning cassette.
5. Eject the cleaning cassette after the manufacturer's
recommended cleaning time.

3-48 Fixed Mast Antenna
The fixed mast antenna can withstand most car washes
without being damaged. If the mast should ever become
slightly bent, you can straighten it out by hand. If the
mast is badly bent, as it might be by vandals, you should
replace it.
Check every once in a while to be sure the mast is still
tightened to the fender. If tightening is required, tighten
by hand, then with a wrench one quarter turn.
Chime Level Adjustment
(RDS Radios Only)
The radio is one of the vehicle chime producers. The
chime is produced from the driver's side front door
speakers. To change the volume level, press and hold
pushbutton 6 with the ignition on and the radio power
off. The chime volume level will change from the
normal level to loud, and LOUD will be displayed on
the radio. To change back to the default or normal
setting, press and hold the pushbutton 6 again. The
chime level will change from the loud level to normal,
and NORMAL will be displayed. Each time the chime
volume is changed, three chimes will sound as an
example of the new volume selected. Chime level
adjustment is only available on RDS radios. Removing
the radio and not replacing it with a factory radio or
chime module will alter vehicle chimes.

4-24
If you drive regularly in steep country, or if you're
planning to visit there, here are some tips that can make
your trips safer and more enjoyable.

Keep your vehicle in good shape. Check all fluid
levels and also the brakes, tires, cooling system and
transmission. These parts can work hard on
mountain roads.

Know how to go down hills. The most important
thing to know is this: let your engine do some of the
slowing down. Shift to a lower gear when you go
down a steep or long hill.
CAUTION:
If you don't shift down, your brakes could get
so hot that they wouldn't work well. You would
then have poor braking or even none going
down a hill. You could crash. Shift down to let
your engine assist your brakes on a steep
downhill slope.
CAUTION:
Coasting downhill in NEUTRAL (N) or with the
ignition off is dangerous. Your brakes will have to
do all the work of slowing down. They could get
so hot that they wouldn't work well. You would
then have poor braking or even none going down
a hill. You could crash. Always have your engine
running and your vehicle in gear when you
go downhill.

Know how to go uphill. You may want to shift down
to a lower gear. The lower gears help cool your engine
and transmission, and you can climb the hill better.

Stay in your own lane when driving on two
-lane
roads in hills or mountains. Don't swing wide or cut
across the center of the road. Drive at speeds that let
you stay in your own lane.

As you go over the top of a hill, be alert. There could be
something in your lane, like a stalled car or an accident.

You may see highway signs on mountains that warn of
special problems. Examples are long grades, passing or
no
-passing zones, a falling rocks area or winding
roads. Be alert to these and take appropriate action.

5-4
1. Check the other vehicle. It must have a 12-volt
battery with a negative ground system.
NOTICE:
If the other system isn't a 12-volt system with a
negative ground, both vehicles can be damaged.
If you have a diesel engine vehicle with two batteries
(or more) you should know before you begin that,
especially in cold weather, you may not be able to
get enough power from a single battery in another
vehicle to start your diesel engine.
If your vehicle has more than one battery, use the
battery that is under the hood of the vehicle. This
will reduce the electrical resistance.2. Get the vehicles close enough so the jumper cables
can reach, but be sure the vehicles aren't touching
each other. If they are, it could cause a ground
connection you don't want. You wouldn't be able to
start your vehicle, and the bad grounding could
damage the electrical systems.
To avoid the possibility of the vehicles rolling, set
the parking brake firmly on both vehicles involved in
the jump start procedure. Put an automatic
transmission in PARK (P) and a manual transmission
in NEUTRAL.
3. Turn off the ignition on both vehicles. Turn off all
lamps that aren't needed, and radios. This will avoid
sparks and help save both batteries, and could save
your radio.

6-64 Engine Compartment Fuse Relay Center
The fuse block is on the driver's side of the engine
compartment at the rear.
NAME CIRCUITS PROTECTED
SPARE Spare Fuse
A.I.R. Air Pump
BLOWER Front Blower Motor
ABS Electronic Brake Control Module
IGN B Ignition Switch
IGN A Starter Relay, Ignition Switch
BATT Instrument Panel Fuse Block
LIGHTING Instrument Panel Fuse Block,
Headlamp Switch
RH
-HDLP Right-hand Headlamp
(Export only)
LH
-HDLP Left-hand Headlamp
(Export only)
RH
-HIBM Right-hand High-beam Headlamp
(Export only)
LH
-HIBM Left-hand High-beam Headlamp
(Export only)

6-65
NAME CIRCUITS PROTECTED
ETC Electronic Throttle Control
RR BLOWER Rear Auxiliary Blower
Motor Relays
FUEL SOL Fuel Solenoid
ENG
-I Heated O2 Sensors, Mass Air
Flow Sensor, Evap Canister Purge
Valve, Crankshaft Position Sensor,
Secondary Air Injection Relay
(Diesel), Water in Fuel Sensor
(Diesel), Fuel Heater (Diesel),
Glowplug Relay (Diesel),
Wastegate Solenoid (Diesel)
ECM
-I Ignition Coil, Camshaft Position
Sensor, VCM, Fuel Injectors,
Coil Driver
IGN
-E Air Conditioning Clutch Relay
SPARE Spare Fuse
SPARE Spare Fuse
SPARE Spare FuseNAME CIRCUITS PROTECTED
A/C Air Conditioning Clutch Relay
HORN Horn Relay, Underhood Lamp(s)
ECM
-B Fuel Pump Relay, VCM, PCM,
Fuel Pump and Engine Oil
Pressure Switch
SPARE Spare Fuse
SPARE Spare Fuse
AUX A Upfitter Provisions
AUX B Upfitter Provisions
A/C RELAY Air Conditioning
HORN RELAY Horn
A.I.R. RELAY Air
FUEL PUMP
RELAYFuel Pump
STARTER
RELAYStarter
ABS EXPORT
RELAYABS Export