2005 JEEP GRAND CHEROKEE wiring

WARNING!
•Relying on the airbags alone could lead to more
severe injuries in a collision. The airbags work
with your seat belt to restrain you properly. In
some collisions the airbags won’t deploy at all.
Always wear your seat belts even though you
have airbags.
•Being too close to the steering wheel or instru-
ment panel during airbag deployment could cause
serious injury. Airbags need room to inflate. Sit
back, comfortably extending your arms to reach
the steering wheel or instrument panel.
•If the vehicle has left and right side curtain
airbags, they also need room to inflate. Do not
lean against the door or window. Sit upright in the
center of the seat.
Airbag System Components
The airbag system consists of the following:
•Occupant Restraint Control Module
•Airbag Warning Light
•Driver Airbag
•Passenger Airbag
•Side Curtain Airbags above Side Windows (If
Equipped)
•Side Remote Acceleration Sensors (If Equipped)
•Steering Wheel and Column
•Instrument Panel
•Interconnecting Wiring
•Knee Impact Bolsters
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 41
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Maintaining Your Airbag System
WARNING!
•Modifications to any part of the airbag system could cause it to fail
when you need it. You could be injured if the airbag system is not
there to protect you. Do not modify the components or wiring,
including adding any kind of badges or stickers to the steering
wheel hub trim cover or the upper right side of the instrument
panel. Do not modify the front bumper or vehicle body structure.
•Do not attempt to modify any part of your advanced airbag system.
The airbag may inflate accidentally or may not function properly if
modifications are made. Take your vehicle to an authorized dealer for
any advanced airbag system service. If your seat including your trim
cover and cushion needs to be serviced in any way (including removal
or loosening/tightening of seat attachment bolts), take the vehicle to
your authorized dealer. Only manufacturer approved seat accessories
may be used. If it is necessary to modify an advanced airbag system
for persons with disabilities, contact your authorized dealer.
•Do not place or hang any items such as add-on video players on the
right front passenger seat back. The additional weight may cause
the Occupant Classification System to be unable to correctly classify
the right front occupant. This could allow the passenger frontal
airbag to inflate when it is not desired.
•You need proper knee impact protection in a collision. Do not mount
or locate any aftermarket equipment on or behind the knee bolsters.
•It is dangerous to try to repair any part of the airbag system yourself.
Be sure to tell anyone who works on your vehicle that it has an
airbag system.
Airbag Warning Light
You will want to have the airbag system ready to inflate
for your protection in an impact. The airbag system is
designed to be maintenance free. If any of the following
occurs, have an authorized dealer service the system
promptly:
•Does not come on during the 6 to 8 seconds after the
ignition switch is first turned on.
•Remains on after the 6 to 8 second interval.
•Comes on for any period of time while driving.
Event Data Recorder (EDR)
In the event of an airbag deployment, your vehicle is
designed to record up to 2-seconds of specific vehicle
data parameters (see list below) in an event data recorder
prior to the moment of airbag deployment. Please note
that such data are ONLY recorded if an airbag deploys,
and are otherwise unavailable. In conjunction with other
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 51
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▫Tire Pressure Monitoring — Premium System. . 271
▫General Information...................275

Tire Chains...........................275

Tire Rotation Recommendations............276

Fuel Requirements......................277
▫3.7/4.7L Engines (If Equipped)............277
▫5.7L Engines (If Equipped)...............277
▫Reformulated Gasoline.................278
▫Gasoline/Oxygenate Blends..............278
▫MMT In Gasoline.....................279
▫Materials Added To Fuel................279
▫Fuel System Cautions..................279
▫Carbon Monoxide Warnings..............280

Fuel Tank Filler Cap (Gas Cap).............281▫Loose Fuel Filler Cap Message............282

Trailer Towing.........................283
▫Trailer And Tongue Weight..............285
▫Trailer Tow Wiring....................286
▫Cooling System Tips—Trailer Towing.......287
▫Trailer Classifications...................288
▫Trailer Towing Capability................289

Recreational Towing (Behind Motorhome, Etc.) . . 290
▫Towing – 2WD Models.................290
▫Towing — Quadra-Trac I (Single-Speed
Transfer Case) 4WD Models..............290
▫Towing — Quadra–Trac II /Quadra–Drive II
4WD Models........................290

Snow Plow...........................293
STARTING AND OPERATING 229
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manual. When your vehicle is used for trailer towing,
never exceed the gross axle weight rating (GAWR) by the
addition of:
•The tongue weight of the trailer.
•The weight of any other type of cargo or equipment
put in or on your vehicle.
WARNING!
Improper towing can lead to an injury accident.
Follow these guidelines to make your trailer towing
as safe as possible:
•Be sure a trailer is loaded heavier in front, about 10%
to 15% of gross trailer weight. Loads balanced over the
wheels or heavier in the rear cause the trailer to sway
severelyside to side which will cause loss of control ofthe vehicle and trailer. Failure to load trailers heavier
in front is the cause of many trailer related accidents.
•Donotinterconnect the hydraulic brake system of
your vehicle with that of the trailer. This could cause
inadequate braking and possible personal injury.
•Trailer brakes are required for trailers in excess of
2,000 lbs (907 kg).
•Donotconnect a trailer lighting system directly to the
lighting system of your vehicle. Use an approved
trailer wiring harness. Failure to do so could damage
the vehicle electrical system and/or result in personal
injury.
•When hauling cargo or towing a trailer,do notover-
load your vehicle or trailer. Overloading can cause a
loss of control, poor performance or damage to brakes,
axle, engine, transmission, steering, suspension, body
structure or tires.
284 STARTING AND OPERATING

Trailer Tow Wiring
The Trailer Tow Package includes a 4 and 7 pin wiring
harness located at the rear underbody of the vehicle.
NOTE:Connect trailer lighting and brakes using factory
harnesses only. Do not cut or splice wiring to the brake
circuits.
The electrical connections are all complete to the vehicle
but you must mate the harness to a trailer connector.
Refer to the following illustrations.
4–Pin Connector
286 STARTING AND OPERATING

Safety............................65,254
Sizes............................... 256
Spare Tire........................... 299
Spinning............................ 266
Tread Wear Indicators................... 267
Wheel Mounting....................... 302
Tongue Weight/Trailer Weight.............. 285
Torque Converter Clutch.................. 238
Tow Hooks, Emergency................... 305
Tow/Haul Indicator Light................. 168
Towing............................283,306
Disabled Vehicle....................... 306
Recreational.......................... 290
Traction Control......................... 121
Traction Control Light..................121,166
Traction Control Switch................... 121
Trailer Towing.......................... 283
Cooling System Tips.................... 287
Tips ................................ 287Trailer and Tongue Weight................ 285
Warnings............................ 284
Wiring.............................. 286
Transfer Case........................... 339
Maintenance.......................... 339
Transmission
Automatic........................233,336
Maintenance.......................... 336
Range Indicator....................... 169
Shifting............................. 233
Transmitter Battery Service.................. 21
Transmitter, Garage Door Opener............ 138
Transmitter, Remote Keyless Entry............ 18
Tread Wear Indicators.................... 267
Turn Signals................... 116,164,353,355
Underhood Fuses.....................346,348
Universal Transmitter..................... 138
Upholstery Care........................ 342
INDEX 407
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