2004 JEEP WRANGLER light

ONBOARD DIAGNOSTIC SYSTEM Ð 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 ªMalfunction Indicator Light.º 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!
²Prolonged driving with the ªMalfunction Indica-
tor Lightº 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 per-
formed.
²If the ªMalfunction Indicator Lightº is flashing
while the engine is running, severe catalytic con-
verter damage and power loss will soon occur.
Immediate service is required.
MAINTAINING YOUR VEHICLE 225
7

Windshield Washers
The fluid reservoir in the engine compartment should be
checked for fluid level at regular intervals. Fill the
reservoir with windshield antifreeze (not radiator anti-
freeze) rated not to freeze at -25ÉF (-31ÉC). Operate the
system for a few seconds to flush out the residual water.
WARNING!
Commercial windshield washer solvents are flam-
mable. They could ignite and burn you. Care must
be exercised when filling or working around the
washer solution.
Windshield Washer Aiming
To change the aim of the windshield washers, place a
safety pin into the nozzle opening and move the nozzle
slightly. Continue making slight adjustments until you
obtain the desired pattern.
Exhaust System
The best protection against carbon monoxide entry into
the vehicle body is a properly maintained engine exhaust
system.
238 MAINTAINING YOUR VEHICLE

WARNING!
Worn brake hoses can burst and cause brake failure.
You could have an accident. If you see any signs of
cracking, scuffing, or worn spots, have the brake
hoses replaced immediately.
Brake Master Cylinder
The fluid level in the master cylinder should be checked
when performing under hood services, or immediately if
the BRAKE warning light shows system failureBe sure to clean the top of the master cylinder area before
removing the cap. If necessary, add fluid to bring the
fluid level up to the requirements described on the brake
fluid reservoir. With disc brakes, fluid level can be
expected to fall as the brake pads wear. Brake fluid level
should be checked when pads are replaced. However,
low fluid level may be caused by a leak and a checkup
may be needed.
Use only manufacturer's recommended brake fluid, refer
to Recommended Fluids, Lubricants, and Genuine Parts
for correct fluid type.
WARNING!
²Use of a brake fluid that may have a lower initial
boiling point or unidentified as to specification,
may result in sudden brake failure during hard
prolonged braking. You could have an accident.
²Overfilling the brake fluid reservoir can result in
spilling brake fluid on hot engine parts and the
brake fluid catching fire.
244 MAINTAINING YOUR VEHICLE

3. Always rinse thoroughly with cold water, then wipe
with a soft and slightly moist, clean cloth.
4. When removing frost, snow or ice,never use a scraper
or de-icing chemicals.Use warm water only if you must
clean the window quickly.
5. Debris (sand, mud/dirt, dust, or salt) from off-road
driving will have a major impact on zipper operation.
Even normal on-road driving and vehicle washing will
eventually impact window zipper operation. To maintain
ease of use of the window zippers, each window zipper
should be cleaned and lubricated regularly. Use Mopart
Soft Top Zipper Cleaner and Lubricant to ease zipper
operation. Before applying, make sure the zipper teeth
are clear of sand, mud, and other materials. Clean both
sides of the zipper, not just one side. Rinse both zipper
halves with fresh water and allow to dry. Aggressively
work the MopartSoft Top Zipper Cleaner and Lubricant
into the zipper teeth. If a stuck zipper slide is experi-
enced, work the MopartSoft Top Zipper Cleaner and
Lubricant into the zipper slide. Several applications may
be required before the zipper comes free.6. Never paste stickers, gummed labels or any tape to the
windows. Adhesives are hard to remove and may dam-
age the windows.
Special Care
²
If you drive on salted or dusty roads or if you drive
near the ocean, hose off the undercarriage at least once
a month.
²It is important that the drain holes in the lower edges
of the doors, rocker panels and tailgate must be kept
clear and open.
²If you detect any stone chips or scratches in the paint,
touch them up immediately. The cost of such repairs is
considered the responsibility of the owner.
²If you carry special cargo such as chemicals, fertilizers,
de-icer salt, etc., assure that such materials are well
packaged and sealed.
²If a lot of driving is done on gravel roads, consider
mud or stone shields behind each wheel.
MAINTAINING YOUR VEHICLE 251
7

To access the fuse panel the glove box must be removed.
It is removed by slipping the glove box strap off the hook
and letting the door roll down off its hinges. To reinstall,
position the glove box door at an 8 o'clock orientation,
engage the hinge hook formations on the lower edge of
the glove box door with the hinge pins on the lower edge
of the instrument panel. Tilt the upper edge of the glove
box door upward toward the instrument panel enough to
reattach the glove box strap to the door. Rotate glove box
door to closed position. Open and close to insure proper
installation.
Cavity Fuse Description
1 20 Amp Yellow Park Lights, Skim
(Sentry Key)
2 20 Amp Yellow Stop Lights
3 20 Amp Yellow Subwoofer System
4 10 Amp Red Door Switch Defeat
5 10 Amp Red Airbag
6 20 Amp Yellow Rear Wiper
7 10 Amp Red Back-Up Lights, Rear Win-
dow Defroster Relay, ABS
8 10 Amp Red HEVAC
Cavity Fuse Description
9 10 Amp Red Airbag
10 10 Amp Red Instrument Cluster
11 10 Amp Red Solenoids, DRL
12 10 Amp Red Power Distribution Relays,
Skim (Sentry Key)
13 10 Amp Red Turn Signals
14 10 Amp Red Radio
15 10 Amp Red HBL (Rear Window De-
froster) Switch
16 10 Amp Red Headlamp Aim (Export
Only)
17 25 Amp Natu-
ralFront Wiper
18 20 Amp Yellow Cigar Lighter
19 20 Amp Yellow Spare
20 20 Amp Yellow Transmission: Manual -
Clutch Interlock Switch By-
pass Automatic - Ignition
Starter Circuit
MAINTAINING YOUR VEHICLE 255
7

REPLACEMENT BULBS Ð IF EQUIPPED
Interior Lights Bulb Type
Auto. Trans. Indicator Light................. 658
Courtesy Lights, Under Dash (1).............. 906
Heater Control Lights (2)................... 194
Rocker Switch Indicator Light (Rear Window
Defogger, and Rear Wash/Wipe)............... **
Soundbar Dome Light..................... 912
** Bulbs only available from authorized dealer.
Instrument Cluster Bulb Type
Telltale (High Beam)....................... 74
Illumination............................ 103Exterior Lights Bulb Type
Backup Lights (2)........................1156
Center High Mounted Stop Light (1).... 921orW16W
Fog Lights.............................. H3
Front Park/Turn Lights (2).................3157
Front Side Marker Lights (2).......... 168orW3W
Headlights (2)...................... H6024BL
Stop/Tail/Turn Lights (2)..................1157
Underhood Light......................... 561
License Light...........................1157
NOTE:Numbers refer to commercial bulb types that
can be purchased from your local authorized dealer.
If a bulb needs to be replaced, visit your authorized
dealer or refer to the applicable Service Manual.
MAINTAINING YOUR VEHICLE 257
7

NOTE:Most vehicles are operated under the conditions
listed for Schedule ªB.º
Second is ScheduleªAº. It is for vehicles that are not
operated under any of the conditions listed under Sched-
ule ªB.º
Use the schedule that best describes your driving condi-
tions. Where time and mileage are listed, follow the
interval that occurs first.
CAUTION!
Failure to perform the required maintenance items
may result in damage to the vehicle.
At Each Stop for Fuel
²
Check the engine oil level about 5 minutes after a fully
warmed engine is shut off. Checking the oil level while
the vehicle is on level ground will improve the accu-
racy of the oil level reading. Add oil only when the
level is at or below the ADD or MIN mark.
²Check the windshield washer solvent, add as required.
Once a Month
²
Check the tire pressure and look for unusual wear or
damage.
²Inspect the battery and clean and tighten the terminals
as required.
²Check the fluid levels of the coolant reservoir, brake
master cylinder, and transmission, and add as needed.
²Check all lights and all other electrical items for correct
operation.
At Each Oil Change
²
Change the engine oil filter.
²Inspect the exhaust system.
²Inspect brake hoses.
²Check the coolant level, hoses, and clamps.
²Inspect manual transmission fluid level Ð if
equipped.
MAINTENANCE SCHEDULES 263
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Service Contract
You may have purchased a service contract for your
vehicle to help protect you from the high cost of unex-
pected repairs after your manufacturer's new vehicle
limited warranty expires. The manufacturer stands be-
hind only the manufacturer's Service Contracts. If you
purchased a manufacturer's Service Contract, you will
receive Plan Provisions and an Owner Identification Card
in the mail within three weeks of your vehicle delivery
date. If you have any questions about your service
contract, call the manufacturer's Service Contract Na-
tional Customer Hotline at 1-800-521-9922.
The manufacturer will not stand behind any service
contract that is not the manufacturer's Service Contract. It
is not responsible for any service contract other than the
manufacturer's Service Contract. If you purchased aservice contract that is not a manufacturer's Service
Contract, and you require service after your manufactur-
er's new vehicle limited warranty expires, please refer to
your contract documents, and contact the person listed in
those documents.
We appreciate that you have made a major investment
when you purchased your new vehicle. Your dealer has
also made a major investment in facilities, tools, and
training to assure that you are absolutely delighted with
your ownership experience. You'll be pleased with their
sincere efforts to resolve any warranty issues or related
concerns.
282 IF YOU NEED CONSUMER ASSISTANCE