2007 CHRYSLER 300 LX check engine

CAUTION!
The TPMS has been optimized for the original
equipment tires and wheels. TPMS pressures and
warning have been established for the tire size
equipped on your vehicle. Undesirable system op-
eration or sensor damage may result when using
replacement equipment that is not of the same size,
type, and/or style. After-market wheels can cause
sensor damage. Do not use tire sealant from a can, or
balance beads if your vehicle is equipped with a
TPMS, as damage to the sensors may result.
23. Voltage Light
This light monitors the electrical system volt-
age. The light should turn on momentarily as
the engine is started. If the light stays on or turns on
while driving, it indicates a problem with the charging
system. Immediate service should be obtained.24. Malfunction Indicator Light
This light is part of an onboard diagnostic
system called OBD. The OBD system monitors
engine and automatic transmission control sys-
tems. The light will turn on when the key is in the ON
position before engine start. If the light does not come
on when turning the key from OFF to ON, have the
condition 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.
The Malfunction Indicator Light flashes to alert you to
serious conditions that could lead to immediate loss of
power or severe catalytic converter damage. The vehicle
should be serviced as soon as possible if this occurs. (See
page 332 for more information.)
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25. Oil Pressure Warning Light
This light shows low engine oil pressure. The
light should turn on momentarily when the
engine is started. If the light turns on while driving,
stop the vehicle, and shut off the engine as soon as
possible. A single chime will sound when this light
turns on.
Do not operate the vehicle until the cause is corrected.
This light does not show how much oil is in the engine.
The engine oil level must be checked using the procedure
shown in section 7. (See page 335 for more information.)
ELECTRONIC VEHICLE INFORMATION CENTER
(EVIC) — IF EQUIPPED
The Electronic Vehicle Information Center (EVIC) fea-
tures a driver-interactive display. It is located in the
upper part of the cluster between the speedometer and
tachometer. Vehicles equipped with steering wheel
mounted buttons (described in this section) are also
equipped with the EVIC. The EVIC consists of the
following:
•System Status
Electronic Vehicle Information Center
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possible convenience. Your dealer has diagnostic equip-
ment to determine if the problem could recur.
Have the transmission checked at your authorized dealer
as soon as possible.
If the problem has been momentary, the transmission can
be reset to regain all forward gears.
Permanent Transmission Limp Home Mode
Permanent Limp Home Mode will be activated if the
transmission enters temporary Limp Home Mode three
times. Follow the reset procedure described under “Tem-
porary Transmission Limp Home Mode” in this section.
In Permanent Limp Home Mode, P (Park), R (Reverse),
and N (Neutral) will continue to operate. Second gear
will operate in the D (Drive) shifter position. The mal-
function indicator light may illuminate.
AUTOSTICK— IF EQUIPPED
Autostickis a driver-interactive transmission that offers
manual gear shifting to provide you with more control of
the vehicle. Autostickallows you to maximize engine
braking, eliminate undesirable upshifts and downshifts,
and improve overall vehicle performance. This system
can also provide you with more control during passing,
city driving, cold slippery conditions, mountain driving,
trailer towing, and many other situations.
AutostickOperation
By placing the selector lever in the D (Drive) position, it
can be moved from side to side. This allows the driver to
select a higher or lower range of gears. Moving the
selector lever to the Left (-) triggers a downshift and to
the Right (+) an upshift. The gear position will display in
the instrument cluster on the transmission range indica-
tor.
You can shift in or out of the Autostickmode at any time
without taking your foot off the accelerator pedal. If you
choose the Overdrive mode, the transmission will oper-
ate automatically, shifting between the five available
gears. When you wish to engage Autostick, simply
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BRAKE SYSTEM
Your vehicle is equipped with dual hydraulic
brake systems. If either of the two hydraulic
systems loses normal capability, the remaining
system will still function. There will be some
loss of overall braking effectiveness. This may be evident
by increased pedal travel during application, greater
pedal force required to slow or stop, and potential
activation of the Brake Warning Light.
In the event power assist is lost for any reason (for
example, repeated brake applications with the engine off)
the brakes will still function. The effort required to brake
the vehicle will be much greater than that required with
the power system operating.
Anti-Lock Brake System — If Equipped
The Anti-Lock Brake System provides increased vehicle
stability and brake performance under most braking
conditions. The system automatically “pumps” the
brakes during severe braking conditions to prevent
wheel lock-up.The electronic brake force distribution (EBD) prevents the
rear wheels from over-braking and provides greater
control of available braking forces applied to the rear
axle.
When the vehicle is driven over 7 mph (11 km/h), you
may also hear a slight clicking sound as well as some
related motor noises. These noises are the system per-
forming its self check cycle to ensure that the ABS system
is working properly. This self check occurs each time the
vehicle is started and accelerated past 7 mph (11 km/h).
ABS is activated during braking under certain road or
stopping conditions. ABS-inducing conditions can in-
clude ice, snow, gravel, bumps, railroad tracks, loose
debris, or panic stops.
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When ESP is switched off, the engine torque reduction
feature is cancelled. Therefore, the enhanced vehicle
stability offered by ESP is unavailable. However, a fea-
ture of the system remains active. This feature controls
wheel spin across an axle quite similarly to a limited slip
differential. If one wheel on an axle is spinning faster
than the other, the system will apply the brake of the
spinning wheel and allow more engine torque to be
applied to the wheel that is not spinning. This wheel slip
control is active at vehicle speeds between approximately
24 mph (40 km/h) and 50 mph (80 km/h).
CAUTION!
When the ESP/TCS indicator light is illuminated
continuously, the ESP is switched off. Avoid spin-
ning one drive wheel. This may cause serious dam-
age to the drive train.
CAUTION!
If the vehicle is towed with the front axle raised, the
engine must be shut off (key in the ignition switch to
the OFF/LOCK or ACC position). Otherwise, the ESP
will immediately be engaged and will apply the rear
wheel brakes.
Synchronizing ESP
The malfunction indicator light for the ESP is
combined with BAS indicator. If the power
supply is interrupted (battery disconnected or
discharged), the ESP/BAS malfunction indica-
tor light may illuminate with the engine running. If this
should occur, turn the steering wheel completely to the
left and then to the right. The ESP/BAS malfunction
indicator light should go out. However, if the light
remains on, have the ESP and BAS checked at your
authorized dealer as soon as possible.
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Towing Tips
Before setting out on a trip, practice turning, stopping,
and backing the trailer in an area located away from
heavy traffic.
Towing Tips — Automatic Transmission
The “D” range can be selected when towing. However, if
frequent shifting occurs while in this range, the “3” range
should be selected.
NOTE:Using the “3” range while operating the vehicle
under heavy operating conditions will improve perfor-
mance and extend transmission life by reducing exces-
sive shifting and heat build up. This action will also
provide better engine braking.
The automatic transmission fluid and filter should be
changed if you REGULARLY tow a trailer for more than
45 minutes of continuous operation. See Schedule “B” in
section 8 of this manual for transmission fluid change
intervals.
NOTE:Check the automatic transmission fluid level
before towing.
Towing Tips — Electronic Speed Control (If
Equipped)

Don’t use in hilly terrain or with heavy loads.
When using the speed control, if you experience speed
drops greater than 10 mph (16 km/h), disengage until
you can get back to cruising speed.
Use speed control in flat terrain and with light loads to
maximize fuel efficiency.
7 - Pin Connector
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MAINTAINING YOUR VEHICLE
CONTENTS
2.7L Engine Compartment...............329
3.5L Engine Compartment...............330
5.7L Engine Compartment...............331
Onboard Diagnostic System — OBD II......332
▫Loose Fuel Filler Cap..................332
Emissions Inspection And Maintenance
Programs
............................333
Replacement Parts.....................334
Dealer Service........................334
Maintenance Procedures.................335
▫Engine Oil..........................335
▫Engine Oil Filter......................340▫Drive Belts — Check Condition And Tension . . 340
▫Spark Plugs.........................340
▫lp;&-2qEngine Air Cleaner Filter...........341
▫Fuel Filter..........................341
▫Catalytic Converter....................341
▫Maintenance-Free Battery................343
▫Air Conditioner Maintenance.............344
▫A/C Air Filter — If Equipped............345
▫Power Steering — Fluid Check............346
▫Front & Rear Suspension Ball Joints........346
▫Steering Linkage......................346
▫Body Lubrication.....................346
▫Windshield Wiper Blades................347
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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 Indicator
Light” on could cause further damage to the emis-
sion control system. It could also affect fuel economy
and driveability. The vehicle must be serviced before
any emissions tests can be performed.
If the “Malfunction Indicator Light” is flashing
while the engine is running, severe catalytic con-
verter damage and power loss will soon occur. Im-
mediate service is required.
Loose Fuel Filler Cap
If the vehicle diagnostic system determines that the fuel
filler cap is loose, improperly installed, or damaged, a
“Check Gascap” message will display in the Electronic
Vehicle Information Center (EVIC) — if equipped. If this
occurs, tighten the fuel filler cap properly and press the
odometer reset button to turn off the message. If the
problem continues, the message will appear the next time
the vehicle is started.
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