2006 JEEP WRANGLER check engine

Selection of Lubricant
Use only manufacturer’s recommended fluid, refer to
Fluids, Lubricants, and Genuine Parts for correct fluid
type.
Maintenance After Off-Road Driving
After extended operation in mud, sand or water, or
similar dirty conditions, have your brake drums, brake
linings, and axle joints inspected and cleaned as soon as
possible. This will prevent any abrasive material from
causing excessive wear or unpredictable braking action.
Following off-road usage, completely inspect the under-
body of your vehicle. Check tires, body structure, steer-
ing, suspension and exhaust system for damage. Check
threaded fasteners for looseness, particularly on the
chassis, drivetrain components, steering and suspension.
Retighten, if required, to torque values specified in the
Service Manual. Also check for accumulations of vegeta-
tion or brush that could become a fire hazard, or conceal damage to fuel lines, brake hoses, axle pinion seals, and
propeller shafts. Check air conditioning drain tube on the
lower dash wall in the engine compartment for mud or
debris, and clean as required. A plugged tube will
adversely affect air conditioning performance.
CAUTION!
Under frequent heavy-duty driving conditions,
change all lubricants, and lubricate body compo-
nents and steering linkage more often than in nor-
mal service to prevent excessive wear.
Appearance Care And Protection From Corrosion
Protection Of Body And Paint From Corrosion
Vehicle body care requirements vary according to geo-
graphic locations and usage. Chemicals that make roads
passable in snow and ice, and those that are sprayed on
MAINTAINING YOUR VEHICLE 297
7

•Off-road or desert driving
•If equipped for and operated with E-85 (ethanol)
fuel.
NOTE: IfANY of these apply to you then change your
engine oil every 3,000 miles (5 000 km) or 3 months,
whichever comes first and follow “Schedule B” of the
“Maintenance Schedules” section of this manual.
NOTE: IfANY of these apply to you then flush and
replace your engine coolant/anti-freeze every 102,000
miles (170 000 km) or 60 months, whichever comes first,
and follow “Schedule B” of the “Maintenance Schedules”
section of this manual.
NOTE: Most vehicles are operated under the conditions
listed for Schedule “B.”
Second is Schedule “A”. It is for vehicles that are not
operated under any of the conditions listed under Sched-
ule “B.” 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
•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.
•Check the windshield washer solvent, add as required.
MAINTENANCE SCHEDULES 319
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Once a Month
•Check the tire pressure and look for unusual wear or
damage.
•Inspect the battery and clean and tighten the terminals
as required.
•Check the fluid levels of the coolant reservoir, brake
master cylinder, and transmission, and add as needed.
•Check all lights and all other electrical items for correct
operation. At Each Oil Change
•Change the engine oil filter.
•Inspect the exhaust system.
•Inspect brake hoses.
•Check the coolant level, hoses, and clamps.
•After completion of off-road operation, the underside
of the vehicle should be thoroughly inspected. Exam-
ine threaded fasteners for looseness.
320 MAINTENANCE SCHEDULES
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About Your Brakes....................... 203
ABS (Anti-Lock Brake System) ............151,205
Add-A-Trunk ........................... 74
Adding Washer Fluid ..................... 141
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . 278
Air Conditioner Maintenance ............... 280
Air Conditioning ........................ 174
Air Conditioning Controls ................. 175
Air Conditioning, Operating Tips ............ 177
Air Conditioning Refrigerant ............... 281
Air Filter .............................. 278
Air Pressure, Tires ....................... 222
Airbag ................................ 27
Airbag Deployment ....................... 32
Airbag Light ......................... 34,149
Airbag Maintenance ....................... 33
Alignment and Balance ................... 227
Alterations/Modifications, Vehicle ............. 9
Antenna, Satellite Radio ................... 171 Antifreeze (Engine Coolant)
................ 314
Anti-Lock Brake System (ABS) .............. 205
Anti-Lock Warning Light .................. 151
Appearance Care ........................ 297
Automatic Dimming Mirror ................. 52
Automatic Transmission ................188,292
Adding Fluid ......................... 294
Fluid and Filter Changes ................. 292
Fluid Level Check ...................... 293
Fluid Type ........................... 292
Gear Ranges .......................... 189
Shifting ............................. 188
Special Additives ...................... 294
Torque Converter ...................... 194
Auxiliary Electrical Outlet (Power Outlet) ....... 71
Auxiliary Power Outlet .................... 71
Axle Lock ............................. 199
Battery ............................... 278
348 INDEX

Emergency Starting..................... 258
Voltmeter ............................ 147
Belts, Drive ............................ 275
Belts, Seat .............................. 20
Body Mechanism Lubrication ............... 282
B-Pillar Location ........................ 217
Brake System ........................... 290
Anti-Lock (ABS) ....................... 205
Hoses .............................. 290
Master Cylinder ....................... 291
Parking ............................. 200
Warning Light ........................ 151
Brakes ............................... 203
Brake/Transmission Interlock ............... 189
Break-In Recommendations, New Vehicle ........ 44
Bulb Replacement ..................... 309,310
Calibration, Compass ...................... 54
Capacities, Fluid ........................ 314 Caps, Filler
Fuel ................................ 233
Power Steering ........................ 281
Car Washes ............................ 298
Carbon Monoxide Warning ................. 232
Carpeting ............................. 301
Catalytic Converter ...................... 275
Caution, Exhaust Gas ...................... 45
CD (Compact Disc) Changer ................ 158
CD (Compact Disc) Player .........154,157,160,163
CD (Compact Disc) Player Maintenance ........ 171
Cellular Phone .......................... 172
Center High Mounted Stop Light ............ 313
Chains, Tire ............................ 228
Changing A Flat Tire ..................... 254
Chart, Tire Sizing ........................ 214
Check Engine Light
(Malfunction Indicator Light) .............149,269
Child Restraint ...................... 34,39,42
INDEX 349
10

Oil Filter............................ 274
Oil Pressure Gauge ..................... 149
Oil Selection .......................... 314
Overheating .......................... 253
Starting ............................. 182
Temperature Gauge ..................... 149
Timing Belt .......................... 277
Engine Oil Viscosity ...................... 274
Engine Oil Viscosity Chart ................. 274
Entry System, Illuminated .................. 17
Exhaust Gas Caution ................... 45,232
Exhaust System ......................... 283
Extender, Seat Belt ........................ 26
Exterior Finish Care ...................... 298
Fabric Care ......................... 300,302
Fabric Top ............................. 302
Filters Air Cleaner .......................... 278 Engine Fuel
.......................... 278
Engine Oil ........................... 274
Finish Care ............................ 298
Flashers Hazard Warning ....................... 252
Turn Signal ..................... 147,311,313
Flooded Engine Starting ................... 183
Fluid Capacities ......................... 314
Fluid Level Checks ...................... 296
Automatic Transmission ................. 292
Engine Oil ........................... 271
Manual Transmission ................... 294
Power Steering ........................ 281
Fluids, Lubricants and Genuine Parts .......... 315
Fog Light Service ........................ 311
Fog Lights ........................... 66,311
Folding Rear Seat ........................ 59
Folding Windshield ...................... 132
Four Wheel Drive ....................... 194
352 INDEX

Key-In Reminder......................... 14
Keys ................................. 13
Lane Change and Turn Signals .............. 147
Lap Belts .............................. 20
Lap/Shoulder Belts ....................... 20
LATCH
(Lower Anchors and Tether for CHildren) .....38,39
Lead Free Gasoline ...................... 229
Lights ................................. 64
Airbag ............................ 34,149
Anti-Lock ........................... 151
Anti-Lock Warning ..................... 151
Back-Up ............................. 313
Brake Warning ........................ 151
Bulb Replacement ...................... 310
Center Mounted Stop ................... 313
Check Engine (Malfunction Indicator) ........ 149
Check Gauges ........................ 149 Cruise
.............................. 147
Daytime Running ....................... 66
Dimmer Switch, Headlight ................ 65
Fog .............................. 66,311
Headlight Switch ....................... 64
Headlights ........................... 310
High Beam ........................... 148
High Beam Indicator .................... 148
Instrument Cluster ...................... 64
Interior .............................. 64
Lights On Reminder ..................... 65
Low Fuel ............................ 151
Passing .............................. 65
Rear Servicing ........................ 313
Rear Tail ............................ 313
Seat Belt Reminder ..................... 148
Sentry Key ........................... 147
Service .............................. 310
Side Marker .......................... 313
INDEX 355
10

Turn Signal................... 66,147,311,313
Warning (Instrument Cluster Description) ..... 147
Loading Vehicle Tires ............................... 217
Locking Axle ........................... 199
Locks ................................. 18
Door ................................ 19
Steering Wheel ......................... 17
Lower Anchors and Tether for CHildren
(LATCH) ............................ 38,39
Lubrication, Body ....................... 282
Maintenance, Airbag ...................... 33
Maintenance Free Battery .................. 278
Maintenance Procedures ................... 271
Maintenance Schedule .................... 318
Schedule “A” ......................... 332
Schedule “B” ......................... 321
Maintenance Schedules .................... 318 Malfunction Indicator Light (Check Engine) . . 149,269
Manual, Service
......................... 344
Manual Transmission .................. 185,294
Fluid Level Check ...................... 294
Lubricant Selection ..................... 294
Shift Speeds .......................... 187
Master Cylinder (Brakes) .................. 291
Mirrors ................................ 52
Automatic Dimming ..................... 52
Compass/Temperature ................... 52
Outside .............................. 56
Rearview ............................. 52
Modifications/Alterations, Vehicle ............. 9
Mopar Parts ......................... 270,343
Multi-Function Control Lever ................ 64
New Vehicle Break-In Period ................ 44
Occupant Restraints ....................... 19
356 INDEX