display CHEVROLET VENTURE 2002 1.G Workshop Manual

6-16 When to Change Engine Oil
(GM Oil Life System
)
Your vehicle has a computer system that lets you know
when to change the engine oil and filter. This is based on
engine revolutions and engine temperature, and not on
mileage. Based on driving conditions, the mileage at
which an oil change will be indicated can vary
considerably. For the oil life system to work properly,
you must reset the system every time the oil is changed.
When the system has calculated that oil life has been
diminished, it will indicate that an oil change is
necessary. A change engine oil message will come on.
Change your oil as soon as possible within the next
two times you stop for fuel. It is possible that, if you
are driving under the best conditions, the oil life system
may not indicate that an oil change is necessary for
over a year. However, your engine oil and filter must be
changed at least once a year and at this time the system
must be reset. It is also important to check your oil
regularly and keep it at the proper level.
If the system is ever reset accidentally, you must change
your oil at 3,000 miles (5 000 km) since your last oil
change. Remember to reset the oil life system whenever
the oil is changed.How to Reset the Change Engine Oil Message
The GM Oil Life System
calculates when to change
your engine oil and filter based on vehicle use. Anytime
your oil is changed, reset the system so it can calculate
when the next oil change is required. If a situation
occurs where you change your oil prior to a change
engine oil message being turned on, reset the system.
1. With the ignition key in RUN but the engine off,
repeatedly push the trip/reset button until OIL is
displayed on the Driver Information Center.
2. When OIL is displayed, push and hold the
trip/reset button for five seconds. The number will
disappear and be replaced by 100 (indicating 100%
oil life remaining).
3. 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.

6-68
Fuses Usage
CTSY LAMP Courtesy Lamp
IGN 1 BCM, Electronic Brake Control
Indicator Lamp Driver Module,
Instrument Panel Cluster, Rear
Side Door Actuator Control
Module, Rear Windows
RR HVAC
TEMP CONTRear HVAC
-A/C Control
RR WPR/WSHR Rear Window Wiper Motor, Rear
Window Wiper/Washer and
Multifunction Switch (Rear
Window Wiper/Washer Switch)
LH
HEADLP LOWPassenger's Side Low
Beam Headlamp
LH
HEADLP HIGHPassenger's Side High
Beam Headlamp
Blank Not UsedFuses Usage
Blank Not Used
Blank Not Used
RAP RELAY Retained Accessory
Power (RAP) Relay
Blank Not Used
HVAC/DIC/DRL/
HEATED SEATAir Inlet Actuator, DIC Display,
DRL Control Module,
Heater
-A/C Control, Temperature
Door Actuator (Front) and Rear
Window Defogger Relay
BCM PRGRAM BCM Programming
RH HEAD LP
LOWDriver's Side Low
Beam Headlamp
RH HEAD LP
HIGHDriver's Side High
Beam Headlamp
PCM/ABS IGN MAIN Relay and PCM,
Electronic Brake Control Module

6-71
Micro Relays Usage
13 A/C Clutch
14 Fuel Pump
15 Not Used
16 Horn
17 Left Fog Lamp, Right Fog Lamp,
Fog Lamp Indicator
Mini Fuse Usage
18 Fuel Injectors 1
-6
19 Not Used
20 Not Used
21 Evaporative Emissions (EVAP)
Canister Purge Valve, Heated
Oxygen Sensors 1 and 2, Mass Air
Flow (MAF) Sensor
22 Not Used
23 Not Used
24 Not UsedMini Fuse Usage
25 Ignition Control Module (ICM)
26 Not Used
27 Transaxle Range Switch
to Back
-up Lamps
28 A/C Clutch Relay to A/C
Compressor Clutch Oil
29 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 Generator
31 Automatic Transaxle (Torque
Converter Clutch Solenoids)
Stoplamp Switch to Powertrain
Control Module
32 Fuel Pump Relay