2007 JEEP COMPASS diagnostic

identify particular vehicles or crashes may be released for
incorporation in aggregate crash databases, such as those
maintained by the US government and various states.
Data of a potentially sensitive nature, such as would
identify a particular driver, vehicle, or crash, will be
treated confidentially. Confidential data will not be dis-
closed by DaimlerChrysler to any third party except
when:
1. Used for research purposes, such as to match data
with a particular crash record in an aggregate database,
provided confidentiality of personal data is thereafter
preserved
2. Used in defense of litigation involving a
DaimlerChrysler product
3. Requested by police under a legal warrant
4. Otherwise required by lawData Parameters that May Be Recorded:
•Diagnostic trouble code(s) and warning lamp status
for electronically-controlled safety systems, including
the airbag system
•Airbag disable lamp status (if equipped)
•Ti m eof airbag deployment (in terms of ignition
cycles and vehicle mileage)
•Airbag deployment level (if applicable)
•Seatbelt status
•Brake status (service and parking brakes)
•Accelerator status (including vehicle speed)
•Engine control status (including engine speed)
•Cruise control status
•Traction/stability control status
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 63
2

25. Malfunction Indicator Light
This light is part of an onboard diagnostic system
called OBD that monitors emissions, engine, and
automatic transmission control systems. The light
will illuminate when the key is in the ON/RUN position
before engine start. If the bulb does not come on when
turning the key from OFF to ON/RUN, have the condi-
tion checked promptly.
Certain conditions such as a loose or missing gas cap,
poor fuel quality, etc. may illuminate the light after
engine start. The vehicle should be serviced if the light
stays on through several of your typical driving cycles. In
most situations the vehicle will drive normally and will
not require towing.
If the Malfunction Indicator Light flashes when the
engine is running, serious conditions may exist thatcould lead to immediate loss of power or severe catalytic
converter damage. The vehicle should be serviced as
soon as possible if this occurs.
If this indicator comes on, the entire, PRNDL/ odometer,
display will brighten to FULL DAYTIME INTENSITY
and will not be dimmable.
26. Front Fog Light Indicator — If Equipped
This light shows when the front fog lights are ON.
27. Electronic Stability Program (ESP) Indicator
Light/Traction Control System (TCS) Indicator Light —
If Equipped
If this indicator light flashes during accelera-
tion, apply as little throttle as possible. While
driving, ease up on the accelerator. Adapt your
speed and driving to the prevailing road con-
ditions, and do not switch off the ESP, or TCS — if
equipped.
174 UNDERSTANDING YOUR INSTRUMENT PANEL

NOTE:Tighten the gas cap about 1/4 turn until you
hear one click. This is an indication that cap is properly
tightened.
If the gas cap is not tighten properly, the Malfunction
Indicator Light will come on. Be sure the gas cap is
tightened every time the vehicle is refueled.
WARNING!
A fire may result if gasoline is pumped into a
portable container that is inside of a vehicle. You
could be burned. Always place gas containers on the
ground while filling.
Loose Fuel Filler Cap Message
If the vehicle diagnostic system determines that the fuel
filler cap is loose or improperly installed, a “GASCAP”
message will be displayed in the Odometer/Trip Odom-
eter in the instrument cluster. Refer to “Instrument
Cluster Description” in Section 4 of this manual. Tighten
the fuel filler cap properly and press the odometer/trip
odometer reset button to turn the message off. If the
problem continues, the message will appear the next time
the vehicle is started. Refer to “Onboard Diagnostic
System — OBDII” in Section 7 of this manual for more
information.
STARTING AND OPERATING 283
5

MAINTAINING YOUR VEHICLE
CONTENTS

Engine Compartment — Gasoline Engines.....316

Onboard Diagnostic System — OBD II........317
▫Loose Fuel Filler Cap Message............317

Emissions Inspection And Maintenance
Programs............................318

Replacement Parts......................319

Dealer Service.........................320

Maintenance Procedures..................320
▫Engine Oil..........................320▫Drive Belt — Check Condition............324
▫Spark Plugs.........................324
▫Catalytic Converter....................325
▫Crankcase Emission Control System........326
▫Fuel Filter..........................327
▫Air Cleaner Element (Filter)..............327
▫Maintenance-Free Battery................327
▫Air Conditioner Maintenance.............329
▫Power Steering — Fluid Check............330
7

ONBOARD DIAGNOSTIC SYSTEM — 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 “Malfunction Indicator Light.” 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!
•Prolonged driving with the “Malfunction Indica-
tor Light” 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.
•If the “Malfunction Indicator Light” 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 aclicking
MAINTAINING YOUR VEHICLE 317
7

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
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.
318 MAINTAINING YOUR VEHICLE

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manuals. (No P.O. Boxes).
•Service Manuals.
These comprehensive service manuals provide the
information that students and professional technicians
need in diagnosing/troubleshooting, problem solving,
maintaining, servicing, and repairing DaimlerChrysler
Corporation vehicles. A complete working knowledge
of the vehicle, system, and/or components is written
in straightforward language with illustrations, dia-
grams, and charts.
•Diagnostic Procedure Manuals.
Filled with diagrams, charts and detailed illustrations,
these practical manuals make it easy for students and
technicians to find and fix problems on computer-
controlled vehicle systems and features. They show
exactly how to find and correct problems the first time,
using step-by-step troubleshooting and driveability
procedures, proven diagnostic tests and a complete list
of all tools and equipment.
•Owner’s Manuals.
These manuals have been prepared with the assistance
of service and engineering specialists to acquaint you
with specific Chrysler group vehicles. Included are
starting, operating, emergency and maintenance pro-
cedures as well as specifications, capabilities and
safety tips.
388 IF YOU NEED CONSUMER ASSISTANCE

Selection of Coolant (Antifreeze)........... 334
Corrosion Protection..................... 345
Crankcase Emission Control System.......... 326
CruiseLight ........................... 171
CupHolder ............................ 152
Customer Assistance..................... 384
Data Recorder, Event...................... 62
Dealer Service.......................... 320
Defroster, Rear Window................... 159
Defroster, Windshield................... 74,222
Delay (Intermittent) Wipers................. 127
Diagnostic System, Onboard................ 317
Dimmer Switch, Headlight................. 122
Disposal
Antifreeze (Engine Coolant)............... 336
Engine Oil........................... 324
Door Locks............................. 18
Door Locks, Automatic.................... 20Door Opener, Garage..................... 132
Downshifting.......................... 242
DriveBelts ............................ 324
Driver’s Seat Back Tilt.................... 111
Driving
On Slippery Surfaces.................... 308
Electric Remote Mirrors.................... 81
Electrical Power Outlets................... 149
Electronic Speed Control (Cruise Control)...... 129
Electronic Stability Program (ESP)............ 142
Electronic Vehicle Information Center (EVIC).... 176
Emergency, In Case of
Jacking............................. 301
Jump Starting......................... 305
Towing ............................. 310
Emission Control System Maintenance......318,366
Engine............................... 316
Break-In Recommendations................ 72
INDEX 395
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