2016 JEEP CHEROKEE fuel

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.
Loose Fuel Filler Cap Message
If the vehicle diagnostic system determines that the fuel
filler cap is loose, improperly installed, or damaged, a
“CHECK GASCAP” message will be displayed in the
Electronic Vehicle Information Center (EVIC) or Driver
Information Display (DID). Refer to “Electronic Vehicle
Information (EVIC) or Driver Information Display
(DID)” in “Understanding Your Instrument Panel” for
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further information. Tighten the fuel filler cap until a
“clicking” sound is heard. This is an indication that the
fuel filler cap is properly tightened. Refer to “Onboard
Diagnostic System” in “Maintaining Your Vehicle” for
further information.
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
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 may notbe 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.
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CAUTION!
Do not use chemical flushes in your engine oil as the
chemicals can damage your engine. Such damage is
not covered by the New Vehicle Limited Warranty.
Engine Oil Viscosity (SAE Grade) — 2.0L, 2.4L
Engine
MOPAR SAE 0W-20 engine oil approved to FCA US
Material Standard MS-6395 such as Pennzoil, Shell Helix
or equivalent is recommended for all operating tempera-
tures. This engine oil improves low temperature starting
and vehicle fuel economy.
The engine oil filler cap also shows the recommended
engine oil viscosity for your engine. For information on
engine oil filler cap location, refer to “Engine Compart-
ment” in this section.Lubricants which do not have both the engine oil certi-
fication mark and the correct SAE viscosity grade num-
ber should not be used.
Engine Oil Viscosity (SAE Grade) — 3.2L Engine
MOPAR SAE 5W-20 engine oil or equivalent Pennzoil or
Shell Helix is recommended for all operating tempera-
tures. This engine oil improves low temperature starting
and vehicle fuel economy. The engine oil filler cap also
shows the recommended engine oil viscosity for your
engine. For information on engine oil filler cap location,
refer to “Engine Compartment” in “Maintaining Your
Vehicle” for further information.
Lubricants which do not have both the engine oil certi-
fication mark and the correct SAE viscosity grade num-
ber should not be used.
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CAUTION!
•The catalytic converter requires the use of un-
leaded fuel only. Leaded gasoline will destroy the
effectiveness of the catalyst as an emissions control
device and may seriously reduce engine perfor-
mance and cause serious damage to the engine.
• Damage to the catalytic converter can result if your
vehicle is not kept in proper operating condition.
In the event of engine malfunction, particularly
involving engine misfire or other apparent loss of
performance, have your vehicle serviced promptly.
Continued operation of your vehicle with a severe
malfunction could cause the converter to overheat,
resulting in possible damage to the converter and
vehicle. Under normal operating conditions, the catalytic con-
verter will not require maintenance. However, it is im-
portant to keep the engine properly tuned to assure
proper catalyst operation and prevent possible catalyst
damage.
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.
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MAINTAINING YOUR VEHICLE 689

Cavity Blade Fuse Cartridge FuseDescription
F06 – – Not Used
F07 15 Amp Blue –Powertrain Control Module - PCM (Diesel Only)
F08 25 Amp Clear –Engine Control Module (ECM)/Fuel Injection
F09 – – Not Used
F10 20 Amp Yellow –Power Transfer Unit (PTU) - If Equipped
F11 – – Not Used
F12 20 Amp Yellow –Brake Vacuum Pump - If Equipped
F13 10 Amp Red –Engine Control Module (ECM)
F14 10 Amp Red –Drivetrain Control Module (DTCM) / Power Take-Off Unit
(PTU) / Brake System Module (BSM) - If Equipped/Brake Pedal Switch/Back Up Switch (Diesel Only)
F15 – – Not Used
F16 20 Amp Yellow –Ign Coil (Gas) / Engine Sensor (Diesel)
F17 – – Not Used
F18 – – Not Used
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Cavity Blade Fuse Cartridge FuseDescription
F19 –40 Amp Green Starter Solenoid
F20 10 Amp Red –A/C Compressor Clutch
F21 – – Not Used
F22 5 Amp Tan –Radiator Fan
F23 70 Amp Tan –Body Controller Module (BCM) - Feed 2
F23 50 Amp Red –Voltage Stability Module (VSM) Feed #2 - If Equipped with
Stop/Start Engine Option
F24 20 Amp Yellow –Rear Wiper - If Equipped with Stop/Start Engine Option
F25B 20 Amp Yellow –Front Washer - If Equipped with Stop/Start Engine Option
F26 –30 Amp Pink Fuel Heater - Diesel Only
F27 – – Not Used
F28 15 Amp Blue –Transmission Control Module (TCM)
F29 – – Not Used
F30 10 Amp Red –Engine Control Module (ECM)/(EPS)/(PCM)
F31 – – Not Used
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MAINTAINING YOUR VEHICLE 709

Cavity Blade Fuse Cartridge FuseDescription
F32 – – Not Used
F33 – – Not Used
F34 – – Not Used
F35 – – Not Used
F36 – – Not Used
F37 – – Not Used
F38 –60 Amp Yellow Glow Plugs (Diesel Only) - If Equipped
F39 –40 Amp Green HVAC Blower Motor
F40 –20 Amp Blue Trailer Tow Park Light - If Equipped
F40 –30 Amp Pink Headlamp Washer Pump - If Equipped
F41 60 Amp Yellow –Body Controller Module (BCM) - Feed 1
F41 50 Amp Red –Voltage Stability Module - Feed 1 - If Equipped with Stop/
Start Engine Option
F42 –30 Amp Pink Trailer Tow Electric Brake Module - If Equipped
F43 20 Amp Yellow –Fuel Pump Motor
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Cavity Blade Fuse Cartridge FuseDescription
F69 10 Amp Red –Power Transfer Unit Switch (TSBM) / Active Grill Shutter
(AGS) - If Equipped with Gas Engine
69A 10 Amp Red –Power Transfer Unit Switch (TSBM) - If Equipped with Die-
sel Engine
F70 5 Amp Tan –Intelligent Battery Sensor If Equipped with Stop/Start En-
gine Option
F71 20 Amp Yellow –HID Headlamp Right if Equipped with Stop/Start Engine
Option
F72 10 Amp Red –Heated Mirrors - If Equipped
F73 –20 Amp Blue Trailer Tow Back Up - If Equipped
F74 –30 Amp Pink Rear Defroster
F75 20 Amp Yellow –Cigar Lighter - If Equipped
F76 20 Amp Yellow –Rear Differential Module (RDM) - If Equipped
F77 10 Amp Red –Fuel Door Release/Brake Pedal Switch
F78 10 Amp Red –Diagnostic Port / Digital TV (Japan Only)
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