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ONBOARD DIAGNOSTIC SYSTEM Ð OBD II
Your vehicle is equipped with a sophisticated onboard
diagnostic system called OBD II. This system monitors
the performance of the emissions, engine, and automatic
transmission control systems. When these systems are
operating properly, your vehicle will provide excellent
performance and fuel economy, as well as engine emis-
sions well within current government regulations.
If any of these systems require service, the OBD II system
will turn on the ªMalfunction Indicator Light.º It will
also store diagnostic codes and other information to
assist your service technician in making repairs. Al-
though your vehicle will usually be drivable and not
need towing, see your dealer for service as soon as
possible.CAUTION!
²Prolonged driving with the ªMalfunction Indica-
tor Lightº on could cause further damage to the
emission control system. It could also affect fuel
economy and driveability. The vehicle must be
serviced before any emissions tests can be per-
formed.
²If the ªMalfunction Indicator Lightº is flashing
while the engine is running, severe catalytic con-
verter damage and power loss will soon occur.
Immediate service is required.
Loose Fuel Filler Cap Message
After fuel is added, the vehicle diagnostic system can
determine if the fuel filler cap is loose or improperly
installed. A GASCAP message will be displayed in the
instrument cluster. Tighten the gas cap until a9clicking9
sound is heard. This is an indication that the gas cap is
properly tightened. Press the odometer reset button to
turn the message off. If the problem persists, the message
will appear the next time the vehicle is started. This
242 MAINTAINING YOUR VEHICLE
Page 243 of 322

might indicate a damaged cap. If the problem is detected
twice in a row, the system will turn on the Malfunction
Indicator Light (MIL). Resolving the problem will turn
the MIL light off.
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS
In some localities, it may be a legal requirement to pass
an inspection of your vehicle's emissions control system.
Failure to pass could prevent vehicle registration.
For states which have an I/M (Inspection and
Maintenance) requirement, this check verifies the
following: the MIL (Malfunction Indicator Lamp)
is functioning and is not on when the engine is running,
and that the OBD (On Board Diagnostic) system is ready
for testing.
Normally, the OBD system will be ready. The OBD
system maynotbe ready if your vehicle was recently
serviced, if you recently had a dead battery, or a battery
replacement. If the OBD system should be determined
not ready for the I/M test, your vehicle may fail the test.Your vehicle has a simple ignition key actuated test
which you can use prior to going to the test station. To
check if your vehicle's OBD system is ready, you must do
the following:
1. Insert your ignition key into the ignition switch.
2. Turn the ignition to the ON position, but do not crank
or start the engine.
3. If you crank or start the engine, you will have to start
this test over.
4. As soon as you turn your key to the ON position, you
will see your MIL symbol come on as part of a normal
bulb check.
5. Approximately 15 seconds later, one of two things will
happen:
a. The MIL will flash for about 10 seconds and then
return to being fully illuminated until you turn off
the ignition key or start the engine. This means that
your vehicle's OBD system isnot readyand you
shouldnotproceed to the I/M station.
MAINTAINING YOUR VEHICLE 243
7
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Checking the oil while the vehicle is on level ground and
only when the engine is hot, will improve the accuracy of
the oil level readings. Maintain the oil level between the
range markings on the dipstick. The range markings will
consist of a crosshatch zone that says SAFE or a cross-
hatch zone that says MIN at the low end of the range and
MAX at the high end of the range. Adding one quart of
oil when the reading is at the low end of the indicated
range will result in the oil level at the full end of the
indicator range.
CAUTION!
Do not overfill the engine. Overfilling the engine as
indicated by the range markings, as described above,
on the engine oil dipstick will cause oil aeration,
which can lead to loss of oil pressure and an increase
in oil temperature. This could damage your engine.
Change Engine Oil
Road conditions and your kind of driving affects the
interval at which your oil should be changed. Check the
following list to decide if any apply to you.
²Day and night temperatures are below 32ÉF (0ÉC).
²Stop and Go driving.
²Extensive engine idling.
²Driving in dusty conditions.
²Short trips of less than 10 miles (16 km).
²More than 50% of your driving is at sustained high
speeds during hot weather, above 90ÉF (32ÉC).
²Trailer towing.
²Taxi, Police or delivery service (commercial service).
²Off-Road or desert operation.
NOTE:IfANYof these apply to you then change your
engine oil every 3,000 miles (5 000 km) or 3 months,
whichever comes first, and follow schedule ªBÐAll
Enginesº of the9Maintenance Schedules9section of this
manual.
246 MAINTAINING YOUR VEHICLE
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Lumbar Support........................ 71
Maintenance Free Battery................. 251
Maintenance, General.................... 245
Maintenance Procedures.................. 245
Maintenance Schedule................... 282
Schedule ªAº........................ 294
Schedule ªBº........................ 285
Malfunction Indicator Light
(Check Engine)...................... 114,243
Manual, Service........................ 303
Manual Transaxle.................174,180,264
Downshifting........................ 182
Fluid Level Check..................264,265
Frequency of Fluid Change...........264,265
Lubricant Selection.................264,265
Map/Reading Lights..................... 77
Master Cylinder (Brakes)................. 262
Mirrors............................... 66
Electric Powered....................... 67
Outside............................. 66
Rearview............................ 66
Vanity.............................. 69Modifications/Alterations, Vehicle............ 6
Monitor, Tire Pressure System............. 206
Mopar Parts........................244,302
Multi-Function Control Lever............... 77
New Vehicle Break-In Period............... 59
Occupant Classification System (OCS)........ 43
Occupant Restraints (Sedan)................ 29
Octane Rating, Gasoline (Fuel)............. 211
Odometer............................. 114
Trip ............................. 114,115
Oil, Engine......................245,248,278
Capacity............................ 278
Change Interval...................... 246
Checking........................245,248
Disposal............................ 248
Filter.............................. 248
Materials Added to.................... 248
Recommendation..................247,278
Synthetic........................... 247
Viscosity............................ 247
Oil Pressure Light...................... 112
INDEX 315
10
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Minimum Requirements................ 222
Trailer and Tongue Weight.............. 221
Wiring............................. 224
Trailer Towing Guide.................... 220
Trailer Weight......................... 220
Transaxle............................. 176
Automatic...................9,174,176,263
Autostick........................... 179
Manual........................10,174,180
Operation........................... 176
Overdrive........................... 178
Selection of Lubricant.................. 263
Transmission
Range Indicator...................... 113
Transmitter Battery Service (Remote Keyless
Entry)................................ 23
Transmitter Programming (Remote Keyless
Entry)................................ 22
Transporting Pets........................ 59
Tread Wear Indicators................... 203
Trip Odometer......................... 114
Trip Odometer Reset Button............... 115
Turn Signals......................79,116,274Understanding Your Instrument Panel....... 108
Uniform Tire Quality Grades.............. 305
Unleaded Gasoline...................... 211
Untwisting Procedure, Seat Belt............. 37
Vacuum/Vapor Harnesses................ 260
Vanity Mirrors.......................... 69
Variance, Compass...................... 125
Vehicle Identification Number (VIN).......... 6
Vehicle Loading.....................195,217
Vehicle Modifications/Alterations............ 6
Vehicle Storage......................... 272
Vehicle Theft Alarm (Security Alarm)......... 24
Warning Lights (Instrument Cluster
Description)........................... 111
Warnings and Cautions.................... 6
Warranty Information.................... 302
Washer, Adding Fluid.................82,102
Washers, Windshield..................... 80
Washing Vehicle........................ 266
Wheel Alignment and Balance............. 205
Wheel and Wheel Trim................... 267
320 INDEX