ignition JEEP WRANGLER UNLIMITED 2013 Owners Manual

Proper towing or lifting equipment is required to prevent
damage to your vehicle. Use only tow bars and other
equipment designed for this purpose, following equip-
ment manufacturer ’s instructions. Use of safety chains is
mandatory. Attach a tow bar or other towing device to
main structural members of the vehicle, not to bumpers
or associated brackets. State and local laws regarding
vehicles under tow must be observed.
If you must use the accessories (wipers, defrosters, etc.)
while being towed, the ignition must be in the ON/RUN
position, not the ACC position.
If the vehicle’s battery is discharged, refer to “Shift Lever
Override” in “What To Do In Emergencies” for instruc-
tions on shifting the automatic transmission out of PARK
for towing. CAUTION!Do not use sling type equipment when towing. When
securing the vehicle to a flatbed truck, do not attach to
front or rear suspension components. Damage to your
vehicle may result from improper towing.
Without The Ignition Key
Special care must be taken when the vehicle is towed
with the ignition in the OFF position. The only approved
method of towing without the key fob is with a flatbed
truck. Proper towing equipment is necessary to prevent
damage to the vehicle.
6 WHAT TO DO IN EMERGENCIES 557

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 prob-
lem is detected twice in a row, the system will turn on the
MIL. Resolving the problem will turn the MIL 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 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 not be 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 key-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. Turn the ignition switch to the ON position, but do not
crank or start the engine.
2. If you crank or start the engine, you will have to start
this test over.
3. As soon as you turn the ignition switch to the ON
position, you will see the MIL symbol come on as part
of a normal bulb check.
7 MAINTAINING YOUR VEHICLE 563

4. 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 is not ready and you should
not proceed 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
is ready and you can proceed to the I/M station.
If your OBD II system is not ready, you should see your
authorized dealer or repair facility. If your vehicle was
recently serviced or had a battery failure or replacement,
you may need to do nothing more than drive your
vehicle as you normally would in order for your OBD II
system to update. A recheck with the above test routine
may then indicate that the system is now ready. Regardless of whether your vehicle’s OBD II system is
ready or not, if the MIL is illuminated during normal
vehicle operation you should have your vehicle serviced
before going to the I/M station. The I/M station can fail
your vehicle because the MIL is on with the engine
running.
REPLACEMENT PARTS
Use of genuine MOPAR  parts for normal/scheduled main-
tenance and repairs is highly recommended to ensure the
designed performance. Damage or failures caused by the
use of non-MOPAR  parts for maintenance and repairs will
not be covered by the manufacturer’s warranty.
DEALER SERVICE
Your authorized dealer has the qualified service person-
nel, special tools, and equipment to perform all service
operations in an expert manner. Service Manuals are564 MAINTAINING YOUR 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. 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.576 MAINTAINING YOUR VEHICLE

Cavity Car-
tridge
Fuse Mini
Fuse Description
J13 60 Amp
Yellow Ignition Off Draw
(IOD) – Main
J14 40 Amp
Green Rear Defroster
J15 40 Amp
Green Front Blower
J17 40 Amp
Green Starter Solenoid
J18 20 Amp
Blue Powertrain Control
Module (PCM)
Trans Range
J19 60 Amp
Yellow Radiator Fan Cavity Car-
tridge
Fuse Mini
Fuse Description
J20 30 Amp
Pink Front Wiper LO/HI
J21 20 Amp
Blue Front/Rear Washer
J22 — Spare
M1 15 Amp
Blue Center High-
Mounted Stop Light
(CHMSL)/Switch
Stop Lamp Feed
M2 20 Amp
Yellow Relay Trailer
Lighting
(Stoplamp)
M3 20 Amp
Yellow Frt/Rear Axle
Locker Relay600 MAINTAINING YOUR VEHICLE

Cavity Car-
tridge
Fuse Mini
Fuse Description
M4 — —
M5 25 Amp
Natural Power Inverter –
If Equipped
M6 20 Amp
Yellow Power Outlet #1/
Rain Sensor
M7 20 Amp
Yellow Power Outlet #2
(BATT/ACC
SELECT)
M8 20 Amp
Yellow Front Heated Seat
M9 20 Amp
Yellow Rear Heated Seat –
If Equipped Cavity Car-
tridge
Fuse Mini
Fuse Description
M10 15 Amp
Blue Ignition Off Draw –
Vehicle Entertain-
ment System, Satel-
lite Digital Audio
Receiver (SDARS),
DVD, Hands-Free
Module, RADIO,
Antenna, Universal
Garage Door Opener,
Vanity Lamp
M11 10 Amp
Red (Ignition Off Draw)
Climate Control
System, Underhood
Lamp
7 MAINTAINING YOUR VEHICLE 601

Cavity Car-
tridge
Fuse Mini
Fuse Description
M12 30 Amp
Green Amplifier
M13 20 Amp
Yellow Ignition Off Draw –
Cabin Compartment
Node, Wireless Con-
trol Module, SIREN,
Multifunction
Control Switch
M14 20 Amp
Yellow Trailer Tow
(Export Only) Cavity Car-
tridge
Fuse Mini
Fuse Description
M15 20 Amp
Yellow Climate Control
System, Rear View
Mirror, Cabin Com-
partment Node,
Transfer Case
Switch, Multi-
Function Control
Switch, Tire Pres-
sure Monitor, Glow
Plug Module –
Export Diesel Only
M16 10 Amp
Red Airbag Module
M17 15 Amp
Blue Left Tail/License/
Park Lamp602 MAINTAINING YOUR VEHICLE

Cavity Car-
tridge
Fuse Mini
Fuse Description
M18 15 Amp
Blue Right Tail/Park/
Run Lamp
M19 25 Amp
Natural Auto Shut Down
(ASD #1 and #2)
M20 15 Amp
Blue Cabin Compartment
Node Interior Light,
Switch Bank
M21 20 Amp
Yellow Auto Shut Down
(ASD #3)
M22 10 Amp
Red Right Horn
(HI/LOW)
M23 10 Amp
Red Left Horn
(HI/LOW) Cavity Car-
tridge
Fuse Mini
Fuse Description
M24 25 Amp
Natural Rear Wiper
M25 20 Amp
Yellow Fuel Pump, Diesel
Lift Pump –
Export Only
M26 10 Amp
Red Power Window
Switch, Driver
Window Switch
M27 10 Amp
Red Ignition Switch
Feed, Wireless
Module
M28 10 Amp
Red Powertrain Control
Module
7 MAINTAINING YOUR VEHICLE 603

CAUTION!• When installing the Integrated Power Module
cover, it is important to ensure the cover is properly
positioned and fully latched. Failure to do so may
allow water to get into the Integrated Power Mod-
ule, and possibly result in an electrical system
failure.
• When replacing a blown fuse, it is important to use
only a fuse having the correct amperage rating. The
use of a fuse with a rating other than indicated may
result in a dangerous electrical system overload. If
a properly rated fuse continues to blow, it indicates
a problem in the circuit that must be corrected. VEHICLE STORAGE
If you are leaving your vehicle dormant for more than
21 days, you may want to take steps to protect your
battery. You may:
• Remove Cartridge fuse #J13 in the Power Distribution
Center (PDC) labeled Ignition-Off Draw (IOD) and
store it in a safe location within the PDC.
• Or, disconnect the negative cable from the battery.
• Anytime you store your vehicle, or keep it out of
service (i.e., vacation) for two weeks or more, run the
air conditioning system at idle for about five minutes
in the fresh air and high blower setting. This will
ensure adequate system lubrication to minimize the
possibility of compressor damage when the system is
started again.
7 MAINTAINING YOUR VEHICLE 605

Mileage or time passed
(whichever comes first)
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000Or Years: 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000Inspect the brake linings, parking
brake function. XXX X X X X
Inspect transfer case fluid. X X X
Additional Maintenance
Replace engine air cleaner filter. X X X X X
Replace spark plugs ** X
Replace the ignition cables. X
Flush and replace the engine
coolant at 10 years or
150,000 miles (240,000 km)
whichever comes first. XX
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SMAINTENANCE SCHEDULES 617