check engine light JEEP LIBERTY 2006 KJ / 1.G User Guide
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JUMP STARTING — GASOLINE ENGINES
NOTE:Check the charge indicator on the battery. If the
indicator is light or yellow, replace the battery.
1. Wear eye protection and remove any metal jewelry
such as watch bands or bracelets that might make an
unintended electrical contact.
2. When boost is provided by a battery in another
vehicle, park that vehicle within booster cable reach but
without letting the vehicles touch. Set the parking brake,
place the automatic transmission in P (Park), or manual
transmission in N (Neutral), and turn the ignition to OFF
for both vehicles.
3. Turn off the heater, radio and all unnecessary electrical
loads. 4. Connect one end of a jumper cable to the positive
terminal of the discharged battery. Connect the other end
of the same cable to the positive terminal of the booster
battery.
5. Connect the other cable, first to the negative terminal
of the booster battery and then connect the other end to
a non-paint metal surface on the engine of the vehicle
with the discharged battery. Make sure you have a good
contact on the engine.
6. Start the engine in the vehicle which has the booster
battery, let the engine idle a few minutes, then start the
engine in the vehicle with the discharged battery.
7. When removing the jumper cables, reverse the above
sequence exactly. Be careful of the moving belts and fan.
WHAT TO DO IN EMERGENCIES 307
6
Page 317 of 424

the fuel filler cap properly to turn the message off (light
will time out). If the problem continues, the message will
appear the next time the vehicle is started.
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 which have an I/M (Inspection and
Maintenance) requirement, this check verifies the
following: the MIL (Malfunction Indicator Lamp)
is functioning and is not on when the engine is running,
and that the OBD (On Board Diagnostic) system is ready
for testing.
Normally, the OBD system will be ready. The OBD
system may notbe ready if your vehicle was recently
serviced, if you recently had a dead battery, or a battery replacement. If the OBD 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 system is ready, you must do
the following:
1. Insert your ignition key into the ignition switch.
2. Turn the ignition to the ON position, but do not crank
or start the engine.
3. If you crank or start the engine, you will have to start
this test over.
4. As soon as you turn your key to the ON position, you
will see your MIL symbol come on as part of a normal
bulb check.
5. Approximately 15 seconds later, one of two things will
happen:
MAINTAINING YOUR VEHICLE 317
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Page 338 of 424

Brake and Power Steering System Hoses
When servicing the vehicle for scheduled maintenance,
inspect surface of hoses for evidence of heat and me-
chanical damage. Hard and brittle rubber, cracking, tears,
cuts, abrasion, and excessive swelling suggest deteriora-
tion of the rubber. Particular attention should be made to
examining those hose surfaces nearest to high heat
sources, such as the exhaust manifold.
Inspect all hose clamps and couplings to make sure they
are secure and no leaks are present.
NOTE: Often fluids such as oil, power steering fluid,
and brake fluid are used during assembly plant opera-
tions to ease the assembly of hoses to couplings. There-
fore, oil wetness at the hose-coupling area is not neces-
sarily an indication of leakage. Actual dripping of hot
fluid when systems are under pressure (during vehicle
operation) should be noted before hose is replaced based
on leakage. NOTE:
Inspection of brake hoses should be done when-
ever the brake system is serviced and every engine oil
change.
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 failure.
338 MAINTAINING YOUR VEHICLE
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•Check the windshield washer solvent, add as required.
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 engine coolant/anti-
freeze reservoir, brake master cylinder, and transmis-
sion, 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 engine coolant/anti-freeze 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.
368 MAINTENANCE SCHEDULES
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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.
Once a Month
•Check the tire pressure and look for unusual wear or
damage.
•Inspect the battery, clean and tighten the terminals as
required.
•Check the fluid levels of engine coolant/anti-freeze
deaeration bottle, brake master cylinder, and transmis-
sion, 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 engine coolant/anti-freeze level, hoses, and
clamps.
•Inspect engine accessory drive belts. Replace as neces-
sary.
•Inspect for the presence of water in the fuel filter/
water separator unit.
Tire Rotation
•Rotate the tires every 6,250 miles (10 000 km).
SCHEDULE “A” — GASOLINE ENGINES 385
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Page 402 of 424

ABS (Anti-Lock Brake System)............175,245
Adding Washer Fluid ..................... 163
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . 326
Air Conditioner Maintenance ............... 327
Air Conditioning, Operating Tips ............ 210
Air Conditioning Refrigerant ............... 328
Air Filter .............................. 326
Air Pressure, Tires ....................... 262
Airbag ................................ 47
Airbag Deployment ....................... 58
Airbag Light ....................... 52,61,179
Airbag Maintenance ....................... 60
Airbag, Window (Side Curtain) ............... 48
Alarm, Panic ............................ 25
Alarm (Security Alarm) .................... 27
Alignment and Balance ................... 267
Alterations/Modifications, Vehicle ............. 8
Antenna, Satellite Radio ................... 204
Antifreeze (Engine Coolant) ................ 362 Anti-Lock Brake System (ABS)
............125,245
Anti-Lock Warning Light .................. 175
Appearance Care ........................ 345
Arming Theft System (Security Alarm) ......... 28
Auto Down Power Windows ................ 33
Automatic Dimming Mirror ................. 80
Automatic Door Locks ..................... 21
Automatic Transmission ................227,340
Adding Fluid ......................... 341
Fluid and Filter Changes ................. 340
Fluid Level Check ...................... 340
Fluid Type ........................... 340
Gear Ranges .......................... 228
Shifting ............................. 227
Special Additives ...................... 341
Torque Converter ...................... 232
Auxiliary Electrical Outlet (Power Outlet) ...... 153
Auxiliary Power Outlet ................... 153
402 INDEX
Page 404 of 424

Caution, Exhaust Gas................... 72,147
CD (Compact Disc) Changer .............189,199
CD (Compact Disc) Player .........185,187,191,194
CD (Compact Disc) Player Maintenance ........ 207
Cellular Phone ........................ 83,207
Center High Mounted Stop Light ............ 361
Chains, Tire ............................ 274
Changing A Flat Tire ..................... 302
Charging System Light .................... 175
Chart, Tire Sizing ........................ 254
Check Engine Light (Malfunction Indicator Light) . 317
Child Restraint ...................... 61,66,69
Child Restraint Tether Anchors .............65,66
Child Safety Locks ........................ 21
Climate Control ......................... 208
Clock ................................ 183
Clutch Interlocking Ignition System ........217,226
Command-Trac Operation .................. 234
Compact Disc (CD) Maintenance ............. 207 Compass
.............................. 143
Compass Calibration ..................... 143
Compass Variance ....................... 144
Computer, Trip/Travel .................... 141
Console, Overhead ....................... 135
Contract, Service ........................ 396
Converter, Catalytic ...................... 324
Cool Down, Turbo ....................... 220
Cooling System ......................... 332
Adding Coolant (Antifreeze) .............. 334
Coolant Capacity ...................... 362
Coolant Level ......................... 335
Disposal of Used Coolant ................ 335
Drain, Flush, and Refill .................. 332
Inspection ........................... 332
Points to Remember .................... 336
Pressure Cap ......................... 334
Radiator Cap ......................... 334
Selection of Coolant (Antifreeze) .........333,362
404 INDEX
Page 406 of 424

Electronic Stability Program (ESP)............ 129
Electronic Throttle Control Warning Light ...... 180
Electronic Vehicle Information Center (EVIC) .... 137
Emergency, In Case of Freeing Vehicle When Stuck ............... 233
Hazard Warning Flasher ................. 300
Jacking ............................. 302
Jump Starting ......................... 307
Tow Hooks .......................... 309
Emission Control System Maintenance ......317,366
Engine Air Cleaner .......................... 326
Block Heater ......................... 223
Break-In Recommendations ................ 71
Checking Oil Level ..................... 319
Compartment ......................... 314
Compartment Identification ............... 314
Cooling ............................. 332
Exhaust Gas Caution .................... 279 Fails to Start
.......................... 218
Flooded, Starting ...................... 218
Fuel Requirements .................. 276,362
Jump Starting ......................... 307
Malfunction Indicator (Check Engine) ........ 174
Oil .............................. 319,362
Oil Change Interval .................... 320
Oil Disposal .......................... 323
Oil Filter ............................ 323
Oil Filter Disposal ...................... 323
Oil Selection .................... 321,322,362
Oil Synthetic ......................... 322
Overheating .......................... 301
Starting ............................. 217
Temperature Gauge ..................... 176
Engine Oil Viscosity ................... 321,322
Engine Oil Viscosity Chart ..............321,322
Enhanced Accident Response Feature .......... 60
Entry System, Illuminated .................. 17
406 INDEX
Page 407 of 424

Exhaust Gas Caution................... 72,279
Exhaust System ......................... 331
Exterior Finish Care ...................... 345
Filters Air Cleaner .......................... 326
Engine Oil ........................... 323
Finish Care ............................ 345
Flashers Hazard Warning ....................... 300
Turn Signal ..................... 173,357,360
Flooded Engine Starting ................... 218
Fluid Capacities ......................... 362
Fluid Leaks ............................. 74
Fluid Level Checks ....................... 74
Automatic Transmission ................. 340
Clutch Fluid .......................... 342
Engine Oil ........................... 319
Manual Transmission ................... 342 Power Steering
........................ 328
Fluids, Lubricants and Genuine Parts .......... 363
Fog Light Service ........................ 358
Fog Lights .......................... 1 18,358
Folding Rear Seat ........................ 111
Four Wheel Drive ....................... 234
Operation ........................... 234
Shifting .......................... 237,241
Systems .......................... 234,238
Four-Way Hazard Flasher .................. 300
Freeing A Stuck Vehicle ................... 233
Front Axle (Differential) ................... 343
Fuel .............................. 276,280
Diesel .............................. 280
Filler Cap (Gas Cap) .................... 281
Filler Door (Gas Cap) ................... 281
Gasoline ............................ 276
Gauge .............................. 179
Materials Added ....................... 278
INDEX 407
10
Page 412 of 424

Diesel.............................. 384
Light Duty Schedule “A” ..............379,391
Light Duty Schedule “B” ..............369,386
Schedule “A” ...................... 379,391
Schedule “B” ...................... 369,386
Maintenance, Sunroof ..................... 153
Malfunction Indicator Light (Check Engine) . . 174,317
Manual, Service ......................... 398
Manual Transmission .................. 224,342
Fluid Level Check ...................... 342
Lubricant Selection ..................... 342
Shift Speeds .......................... 226
Map/Reading Lights ..................... 136
Master Cylinder (Brakes) .................. 338
Mini-Trip Computer ...................... 141
Mirrors ................................ 79
Automatic Dimming ..................... 80
Electric Remote ........................ 81
Heated .............................. 82 Outside
.............................. 80
Rearview ............................. 79
Vanity ............................... 82
Modifications/Alterations, Vehicle ............. 8
Monitor, Tire Pressure System ............... 268
Mopar Parts ......................... 318,397
Multi-Function Control Lever ............... 116
Navigation System ....................... 199
New Vehicle Break-In Period ................ 71
Occupant Classification System (OCS) .......... 54
Occupant Restraints ....................... 34
Octane Rating, Gasoline (Fuel) .............. 276
Odometer ............................. 176
Trip ................................ 176
Off-Pavement Driving (Off-Road) ..........249,344
Off-Road Driving (Off-Pavement) ..........249,344
Oil, Engine ............................ 319
412 INDEX