Ignition CHEVROLET VENTURE 2000 1.G Repair Manual

4-32 Electronic Level Control (Option)
On vehicles equipped with the optional electronic level
control, the rear of the vehicle is automatically kept
level as you load or unload your vehicle. However, you
should still not exceed the GVWR or the GAWR.
If the engine is running or the ignition key is in
ACCESSORY or when retained accessory power (RAP)
is active, you may hear the compressor operating when
you load or unload your vehicle, and periodically as the
system self
-adjusts. This is normal. See ªRetained
Accessory Powerº in the Index.
The compressor should operate for brief periods of time.
If the sound continues for an extended period of time,
your vehicle needs service.
Using heavier suspension components to get added
durability might not change your weight ratings. Ask
your dealer to help you load your vehicle the right way.
Towing a Trailer
CAUTION:
If you don't use the correct equipment and drive
properly, you can lose control when you pull a
trailer. For example, if the trailer is too heavy, the
brakes may not work well
-- or even at all. You
and your passengers could be seriously injured.
Pull a trailer only if you have followed all the
steps in this section. Ask your dealer for advice
and information about towing a trailer with
your vehicle.

5-4
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 transaxle
in PARK (P) or a manual transaxle in NEUTRAL
before setting the parking brake.
3. Turn off the ignition on both vehicles. Unplug
unnecessary accessories plugged into the cigarette
lighter or the accessory power outlet. Turn off all
lamps that aren't needed, as well as radios. This will
avoid sparks and help save both batteries. In
addition, it could save your radio!
NOTICE:
If you leave your radio on, it could be badly
damaged. The repairs wouldn't be covered by
your warranty.
4. Open the hoods and locate the batteries.
Find the positive (+) and negative (
-) terminals on
each battery.
CAUTION:
An electric fan can start up even when the engine
is not running and can injure you. Keep hands,
clothing and tools away from any underhood
electric fan.

6-15
How to Reset the Change Engine Oil Message
1. With the ignition key in RUN but the engine off,
fully push and release the accelerator pedal slowly
three times within five seconds.
2. Turn the key to OFF.
If the CHANGE ENGINE OIL message comes
back on, the engine oil life monitor has not reset.
Repeat the procedure.
What to Do with Used Oil
Did you know that used engine oil contains certain elements
that may be unhealthy for your skin and could even cause
cancer? Don't let used oil stay on your skin for very long.
Clean your skin and nails with soap and water, or a good hand
cleaner. Wash or properly throw away clothing or rags
containing used engine oil. (See the manufacturer's warnings
about the use and disposal of oil products.)
Used oil can be a real threat to the environment. If you
change your own oil, be sure to drain all free
-flowing oil
from the filter before disposal. Don't ever dispose of oil by
putting it in the trash, pouring it on the ground, into
sewers, or into streams or bodies of water. Instead, recycle
it by taking it to a place that collects used oil. If you have
a problem properly disposing of your used oil, ask your
dealer, a service station or a local recycling center for help.
Engine Air Cleaner/Filter
The air cleaner is located at the front of the engine
compartment, on the driver's side of the vehicle, under
the engine coolant reservoir.
Checking or Replacing the Air Cleaner/Filter
1. Unlatch the two hooks on top of the
air cleaner housing.
2. Turn back the air inlet panel and rest it on top of the
housing. The air intake tube is designed to flex back;
you do not need to disconnect it.

6-38
Windshield Wiper
Blade Replacement
Windshield wiper blades should be inspected at least
twice a year for wear and cracking. See ªWiper Blade
Checkº in the Index for more information.
Replacement blades come in different types and are
removed in different ways. For the proper type and
length, see ªNormal Maintenance Replacement Partsº in
the Index.
Here's how to remove the Shepherd's Hook type:
1. Turn the wipers on to the lowest intermittent setting.
2. Turn off the ignition while the wipers are at the outer
positions of the wipe pattern. The blades are more
accessible for removal/replacement while in
this position.3. Pull the windshield wiper arm away from the
windshield or backglass.4. While holding the wiper
arm away from the
glass, push the release
clip from under
the blade.

6-60
Fuses Usage
SWC
BACKLIGHTSteering Wheel Radio Control
Switches (Illumination)
PCM/PASS
KEY/CLUSTERInstrument Cluster to
PRNDL Indicators
PWR MIRROR Power Remote Control
Mirror Switch
CRUISE Cruise Control Module, Switch and
Release Switch
PCM/CRANK Power Control Module (PCM),
Ignition Crank
PASS KEY PASS
-Key III System
PWR LOCK Body Control Module (BCM)
HTD MIRROR Heated Mirrors
RH T/LP Not Used
RR FOG LP Not Used
CIGAR/DLC Cigarette Lighter and Data Link
Connector (DLC)
T/SIG Turn Signal Switch
PWR
QTR VENTInterior Lamp and Multifunction
Switch (Power Vent Switch)
FRT
WPR/WSHRWindshield Wiper/Washer
Motor and SwitchFuses Usage
HAZARD Turn Signal Switch
RR PWR SCKT Rear Electric Accessory
Plug Housing
DRL Daytime Running Lamps (DRL)
Control Module
LH T/LP Not Used
RR
DEFOG/HTD
MIRRORSRear Window Defogger Relay,
Heated Mirrors
FRT PWR SCKT Front Electric Accessory
Plug Housing
SIR Inflatable Restraint Control Module
HVAC
BLOWERHeater
-A/C Control
MALL/
CLUSTERInstrument Cluster, BCM,
Electronic Level Control (ELC)
Sensor and Relay
STOP LAMP Stoplamp Switch
CLUSTER
BATTModule/Electronic Brake Control
Module/Electronic Brake Traction
Control Module (EBCM/EBTCM)

6-63
Maxi Fuse Usage
5
-IGN MAIN 1 Ignition Switch to Fuses
(Instrument Panel): ABS/TCS
IGN, CRUISE, DRL, ELEC
PRNDL, IGN 1, PSD, SIR, T/SIG
and PCM [IGN MAIN Relay
(Underhood Electrical Center
Fuses: A/C CLU, ELEK IGN,
IGN 1
-U/H, INJ, TCC)]
6
-COOL FAN 1 Coolant Fans
7
-BATT MAIN 1 Fuses (Instrument Panel): ABS
MOD BATT, CIGAR/DLC,
CTSY LAMP, FRT PWR SCKT,
PWR LOCK, PWR MIRROR and
RR PWR SCKT
8
-IGN MAIN 2 Ignition Switch to Fuses (I/P):
BCM PRGRM, FRT HVAC
LOW/MED BLWR, FRT
WPR/WSHR, HVAC/DRL,
MALL/RADIO/DIC, PWR QRT
VENT, RR HVAC, RR
WPR/WSHR, SWC ACCY and
PWR WDO Circuit BreakerMini Relays Usage
9
-COOL FAN RH FAN 1, LH FAN 2
10
-COOL FAN 2 LH FAN 2
11
-IGN MAIN FUSES: A/C CLU, IGN 1-U/H,
INS, ELEK IGN, TCC
12
-COOL FAN 1 RH FAN 1, LH FAN 2
Micro Relays Usage
13
-A/C CLU A/C Clutch
14
-FUEL PUMP Fuel Pump
15
-F/PMP SPD
CONTNot Used
16
-HORN Horn
17
-FOG LAMP LH Fog Lamp, RH Fog Lamp,
Fog Lamp Indicator
Mini Fuse Usage
18
-INJ Fuel Injectors 1-6
19
-SPARE Not Used
20 Not Used

6-64
Mini Fuse Usage
21
-IGN1-UH Evaporative Emissions (EVAP)
Canister Purge Valve, Heated
Oxygen Sensors 1 and 2, Mass
Air Flow (MAF) Sensor
22
-SPARE Not Used
23
-SPARE Not Used
24
-SPARE Not Used
25
-ELEK IGN Ignition Control Module (ICM)
26
-SPARE Not Used
27
-B/U LAMP Transaxle Range Switch to
Back
-up Lamps
28
-A/C CLU A/C CLU Relay to A/C
Compressor Clutch Oil
29
-RADIO Driver Information Display,
Heater A/C Control, Radio, Rear
Side Door Actuator Control
Motor, Remote Control Door
Lock Receiver (RCDLR),
Security Indicator Lamp and
Theft
-Deterrent Shock Sensor
30
-ALT SENSE GeneratorMini Fuse Usage
31
-TCC Automatic Transaxle (Torque
Converter Clutch Solenoids)
Stoplamp Switch to PCM
32
-FUEL PUMP Fuel Pump Relay
33
-ECM SENSE Powertrain Control Module
(PCM)
34 Not Used
35
-FOG LP Fog Lamp Relay
36
-HORN Horn Relay
37
-PARK LP Daytime Running Lamps (DRL)
Control Module, Headlamps and
Instrument Panel Dimmer Switch
Theft
-Deterrent Relay to
Headlamps
38 Not Used
39
-SPARE Not Used
40 Mini Fuse Puller

7-18
Automatic Transaxle Shift Lock Control
System Check
CAUTION:
When you are doing this check, the vehicle could
move suddenly. If it does, you or others could be
injured. Follow the steps below.
1. Before you start, be sure you have enough room around
the vehicle. It should be parked on a level surface.
2. Firmly apply the parking brake (see ªParking Brakeº
in the Index if necessary).
NOTE: Be ready to apply the regular brake
immediately if the vehicle begins to move.3. With the engine off, turn the key to the RUN
position, but don't start the engine. Without applying
the regular brake, try to move the shift lever out of
PARK (P) with normal effort. If the shift lever
moves out of PARK (P), your vehicle needs service.
Ignition Transaxle Lock Check
While parked, and with the parking brake set, try to turn
the ignition key to LOCK in each shift lever position.

The key should turn to LOCK only when the shift
lever is in PARK (P).

The key should come out only in LOCK.