2015 JEEP GRAND CHEROKEE light

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 (MIL).” 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 authorized dealer for service as
soon as possible.
CAUTION!
•Prolonged driving with the MIL 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 performed.
•If the MIL is flashing, while the engine is running,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.
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 that require an Inspection and Mainte-
nance (I/M), this check verifies the “Malfunction
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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 Malfunction Indicator Light
(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 place the ignition in the off
position 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
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MAINTAINING YOUR VEHICLE 529

Installing The Rear Wiper
1. Lift the rear wiper arm pivot cap away from the glass
to allow the rear wiper blade to be raised off of the
glass.
NOTE:The rear wiper arm cannot be fully raised off the
glass unless the wiper arm pivot cap is unsnapped first.
Attempting to fully raise the rear wiper arm without
unsnapping the wiper arm pivot cap may damage the
vehicle.
2. Lift the rear wiper arm fully off the glass.
3. Insert the wiper blade pivot pin into the opening on
the end of the wiper arm. Grab the bottom end of the
wiper arm with one hand, and press the wiper blade
flush with the wiper arm until it snaps into place.
4. Lower the wiper blade onto the glass and snap the
wiper arm pivot cap back into place.Adding Washer Fluid
This vehicle is equipped with a Driver Information
Display (DID), the DID will indicate when the washer
fluid level is low. When the sensor detects a low fluid
level, the windshield will light on the vehicle graphic
outline and the “WASHER FLUID LOW” message will be
displayed.
The fluid reservoir for the windshield washers and the
rear window washer is shared. The fluid reservoir is
located in the engine compartment, be sure to check the
fluid level at regular intervals. Fill the reservoir with
windshield washer solvent only (not radiator antifreeze).
When refilling the washer fluid reservoir, take some
washer fluid and apply it to a cloth or towel and wipe
clean the wiper blades, this will help blade performance.
To prevent freeze-up of your windshield washer system
in cold weather, select a solution or mixture that meets or
exceeds the temperature range of your climate. This
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MAINTAINING YOUR VEHICLE 553

WARNING!
Riding the brakes can lead to brake failure and
possibly a collision. Driving with your foot resting or
riding on the brake pedal can result in abnormally
high brake temperatures, excessive lining wear, and
possible brake damage. You would not have your full
braking capacity in an emergency.
Fluid Level Check — Brake Master Cylinder
The fluid level of the master cylinder should be checked
whenever the vehicle is serviced, or immediately if the
brake system warning light is on. If necessary, add fluid
to bring level to the full mark on the side of the reservoir
of the brake master cylinder. Be sure to clean the top of
the master cylinder area before removing cap. With disc
brakes, fluid level can be expected to fall as the brakepads wear. Brake fluid level should be checked when
pads are replaced. If the brake fluid is abnormally low,
check system for leaks.
Refer to “Fluids, Lubricants, and Genuine Parts” in
“Maintaining Your Vehicle” for further information.
WARNING!
•Use only manufacturer’s recommended brake
fluid. Refer to “Fluids, Lubricants, and Genuine
Parts” in “Maintaining Your Vehicle” for further
information. Using the wrong type of brake fluid
can severely damage your brake system and/or
impair its performance. The proper type of brake
fluid for your vehicle is also identified on the
original factory installed hydraulic master cylinder
reservoir.
(Continued)
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MAINTAINING YOUR VEHICLE 563

Cavity Cartridge Fuse Micro Fuse Description
F07 40 Amp Green – Starter Solenoid
F08 20 Amp Blue – Emission Sensors (Diesel engine only)
F09 30 Amp Pink – Diesel Fuel Heater (Diesel engine only)
F10 40 Amp Green – Body Controller / Exterior Lighting #2
F11 30 Amp Pink – Trailer Tow Electric Brake - If Equipped
F12 40 Amp Green – Body Controller #3 / Power Locks
F13 40 Amp Green – Blower Motor Front
F14 40 Amp Green – Body Controller #4 / Interior Lights #2
F17 30 Amp Pink – Headlamp Washer- If Equipped
F19 20 Amp Blue – Headrest Solenoid- If Equipped
F20 30 Amp Pink – Passenger Door Module
F22 20 Amp Blue – Engine Control Module
F23 30 Amp Pink – Interior Lights #1
F24 30 Amp Pink – Driver Door Module
F25 30 Amp Pink – Front Wipers
576 MAINTAINING YOUR VEHICLE

Cavity Cartridge Fuse Micro Fuse Description
F26 30 Amp Pink – Anti-lock Brakes/Stability Control Module/
Valves
F28 20 Amp Blue – Trailer Tow Backup Lights - If Equipped
F29 20 Amp Blue – Trailer Tow Parking Lights - If Equipped
F30 30 Amp Pink – Trailer Tow Receptacle - If Equipped
F32 30 Amp Pink – Drive Train Control Module
F34 30 Amp Pink – Slip Differential Control
F35 30 Amp Pink – Sunroof - If Equipped
F36 30 Amp Pink – Rear Defroster
F37 25 Amp Clear – Rear Blower Motor - If Equipped
F38 30 Amp Pink – Power Inverter 115V AC - If Equipped
F39 30 Amp Pink – Power Liftgate - If Equipped
F40 – 10 Amp Red Daytime Running Lights/Headlamp Level-
ing
F42 – 20 Amp Yellow Horn
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MAINTAINING YOUR VEHICLE 577

Cavity Cartridge Fuse Micro Fuse Description
F44 – 10 Amp Red Diagnostic 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 Tan Battery Sensor
F53 – 20 Amp Yellow Trailer Tow – Left Turn/Stop Lights - If
Equipped
F55 – 10 Amp Red DTV / DSRC
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 Blue Transmission Control Module
578 MAINTAINING YOUR VEHICLE

Cavity Cartridge Fuse Micro Fuse Description
F61 – 10 Amp Red Transmission Control Module/PM Sensor
(Diesel engine only)
F62 – 10 Amp Red Air Conditioning Clutch
F63 – 20 Amp Yellow Ignition Coils (Gas), Urea Heater (Diesel)
F64 – 25 Amp Clear Fuel 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 Yellow Rear Wiper Motor
F69 – 15 Amp Blue Spotlight Feed - If Equipped
F70 – 20 Amp Yellow Fuel Pump Motor
F71 – 30 Amp Green Audio Amplifier
F73 – 15 Amp Blue HID Headlamp RH - If Equipped
F74 – 20 Amp Yellow Brake Vacuum Pump - If Equipped
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MAINTAINING YOUR VEHICLE 579