2015 JEEP GRAND CHEROKEE ignition

Indicator Light (MIL)” is functioning and is not on when
the engine is running, and that the OBD II system is
ready for testing.
Normally, the OBD II system will be ready. The OBD II
system maynotbe ready if your vehicle was recently
serviced, recently had a dead battery or a battery replace-
ment. If the OBD II system should be determined not
ready for the I/M test, your vehicle may fail the test.
Your vehicle has a simple ignition actuated test, which
you can use prior to going to the test station. To check if
your vehicle’s OBD II system is ready, you must do the
following:
1. Cycle the ignition switch to the ON position, but do
not crank or start the engine.
NOTE:If you crank or start the engine, you will have to
start this test over.
2. As soon as you cycle the ignition switch to the ON
position, you will see the MIL symbol come on as part
of a normal bulb check.
3. Approximately 15 seconds later, one of two things will
happen:
•The MIL will flash for about 10 seconds and then
return to being fully illuminated until you turn OFF
the ignition or start the engine. This means that your
vehicle’s OBD II system isnot readyand you should
notproceed to the I/M station.
•The MIL will not flash at all and will remain fully
illuminated until you turn OFF the ignition or start the
engine. This means that your vehicle’s OBD II system
isreadyand you can proceed to the I/M station.
If your OBD II system isnot ready,you should see your
authorized dealer or repair facility. If your vehicle was
recently serviced or had a battery failure or replacement,
604 MAINTAINING YOUR VEHICLE

Engine Air Cleaner Filter Installation
NOTE:Inspect and clean the housing if dirt or debris is
present before replacing the air filter element.
1. Install the air cleaner filter element into the housing
assembly with the air cleaner filter inspection surface
facing downward.
2. Install the air cleaner cover onto the housing assembly
locating tabs.
3. Latch the spring clips and lock the air cleaner cover to
the housing assembly.
Accessory Drive Belt Inspection
WARNING!
•Do not attempt to inspect an accessory drive belt
with vehicle running.
•When working near the radiator cooling fan, dis-
connect the fan motor lead. The fan is temperature
controlled and can start at any time regardless of
ignition switch position. You could be injured by
the moving fan blades.
•You can be badly injured working on or around a
motor vehicle. Only do service work for which you
have the knowledge and the proper equipment. If
you have any doubt about your ability to perform a
service job, take your vehicle to a competent me-
chanic.
7
MAINTAINING YOUR VEHICLE 613

WARNING!
•Do not remove the A/C air filter while the ignition
is in the ON/RUN position or personal injury may
result.
•Do not remove the A/C air filter while the blower is
operating or personal injury may result.
The A/C air filter is located in the fresh air inlet behind
the glove compartment. Perform the following procedure
to replace the filter:
1. Open the glove compartment and remove all contents.Glove Compartment
1—GloveCompartmentTravelStops2—GloveCompartmentTensionTether3—GloveCompartmentDoor
618 MAINTAINING YOUR VEHICLE

NOTE:Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you.
In unusual situations involving grossly malfunctioning
engine operation, a scorching odor may suggest severe
and abnormal catalyst overheating. If this occurs, stop
the vehicle, turn off the engine and allow it to cool.
Service, including a tune-up to manufacturer’s specifica-
tions, should be obtained immediately.
To minimize the possibility of catalytic converter dam-
age:
•Do not shut off the engine or interrupt the ignition,
when the transmission is in gear and the vehicle is in
motion.
•Do not try to start the engine by pushing or towing the
vehicle.
•Do not idle the engine with any spark plug wires
disconnected or removed, such as when diagnostic
testing, or for prolonged periods during very rough
idle or malfunctioning operating conditions.
Cooling System
WARNING!
You or others can be badly burned by hot engine
coolant (antifreeze) or steam from your radiator. If
you see or hear steam coming from under the hood,
do not open the hood until the radiator has had time
to cool. Never try to open a cooling system pressure
cap when the radiator or coolant bottle is hot.
Engine Coolant Checks
Check the engine coolant (antifreeze) protection every 12
months (before the onset of freezing weather, where
applicable). If the engine coolant (antifreeze) is dirty, the
632 MAINTAINING YOUR VEHICLE

WARNING!
A frayed or torn belt could rip apart in a collision and
leave you with no protection. Inspect the belt system
periodically, checking for cuts, frays, or loose parts.
Damaged parts must be replaced immediately. Do
not disassemble or modify the system. Seat belt
assemblies must be replaced after a collision if they
have been damaged (i.e., bent retractor, torn web-
bing, etc.).
FUSES
WARNING!
•When replacing a blown fuse, always use an ap-
propriate replacement fuse with the same amp
rating as the original fuse. Never replace a fuse
with another fuse of higher amp rating. Never
replace a blown fuse with metal wires or any other
material. Failure to use proper fuses may result in
serious personal injury, fire and/or property dam-
age.
•Before replacing a fuse, make sure that the ignition
is off and that all the other services are switched off
and/or disengaged.
•If the replaced fuse blows again, contact an autho-
rized dealer.
(Continued)
650 MAINTAINING YOUR VEHICLE

CavityCartridge Fuse Micro FuseDescription
F3830 Amp Pink–Power Inverter 115V AC - If Equipped
F3930 Amp Pink–Power Liftgate - If Equipped
F40–10 Amp RedDaytime Running Lights
F42–20 Amp YellowHorn
F44–10 Amp RedDiagnostic Port
F46–10 Amp Red Tire Pressure Monitor - If Equipped
F49–10 Amp Red Integrated Central Stack / Climate Control
F50–20 Amp Yellow Air Suspension Control Module - If
Equipped
F51–15 Amp Blue Ignition Node Module / Keyless Ignition
/ Steering Column Lock
F52–5 Amp TanBattery Sensor
F53–20 Amp Yellow Trailer Tow – Left Turn/Stop Lights - If
Equipped
F55–10 Amp RedDTV / DSRC
654 MAINTAINING YOUR VEHICLE

CavityCartridge Fuse Micro FuseDescription
F56–15 Amp Blue Additional Content (Diesel engine only)
F57–15 Amp Blue HID Headlamps LH - If Equipped
F59–10 Amp Red Purging Pump (Diesel engine only)
F60–15 Amp BlueTransmission Control Module
F61–10 Amp Red Transmission Control Module/PM Sensor
(diesel engine only)
F62–10 Amp RedAir Conditioning Clutch
F63–20 Amp Yellow Ignition Coils (Gas), Urea Heater (Diesel)
F64–25 Amp ClearFuel Injectors / Powertrain
F66–10 Amp Red Sunroof / Passenger Window Switches /
Rain Sensor
F67–15 Amp Blue CD / DVD / Bluetooth Hands-free
Module - If Equipped
F68–20 Amp YellowRear Wiper Motor
F69–15 Amp BlueSpotlight Feed - If Equipped
7
MAINTAINING YOUR VEHICLE 655

Gasoline (Fuel)...........................527
Gasoline, Reformulated.....................528
Gauges
Coolant Temperature.....................294
Fuel.................................297
Speedometer..........................293
Tachometer............................292
Gear Ranges.............................432
General Information.......................215
Glass Cleaning...........................649
Gross Axle Weight Rating...................543
Gross Vehicle Weight Rating..................542
GVWR.................................539
Hazard Warning Flasher....................568
Headlights..............................662
Bulb Replacement.......................663
Cleaning.............................648
On With Wipers........................168
Passing..............................177
Replacing.............................663
Heated Mirrors...........................133
Heater, Engine Block.......................426
High Beam Indicator.......................292
Hill Descent Control.......................484
Hill Start Assist...........................481
Hitches
Trailer Towing.........................545
HomeLink® (Garage Door Opener)............248
Hood Release............................165
Ignition
Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Illuminated Entry..........................21
Immobilizer (Sentry Key)....................16
Inside Rearview Mirror.....................123
Instrument Cluster........................292
Instrument Panel and Controls................29010
INDEX 701