2007 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.
•Side curtain airbags 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
•Side Remote Acceleration Sensors
•Steering Wheel and Column
•Instrument Panel
•Interconnecting Wiring
•Knee Impact Bolsters
•Front Acceleration Sensors
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 47
2

WARNING!
Deployed airbags and seat belt pretensioners cannot
protect you in another collision. Have the airbags,
seat belt pretensioners, and seat belt retractor assem-
bly, replaced by an authorized dealer as soon as
possible.
Enhanced Accident Response Feature
If the airbags deploy after an impact and the electrical
system remains functional, vehicles equipped with
power door locks will unlock automatically. In addition,
approximately 5 seconds after the vehicle has stopped
moving, the interior lights will illuminate to aid visibility.
NOTE:The interior lights can only be deactivated if the
key is removed from the ignition switch or the vehicle is
driven.
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.
•You need proper knee impact protection in a colli-
sion. Do not mount or locate any aftermarket equip-
ment 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.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 51
2

CAUTION!
If the trailer weighs more than 1,000 lbs (454 kg) loaded,
it should have its own brakes and they should be of
adequate capacity. Failure to do this could lead to
accelerated brake lining wear, higher brake pedal ef-
fort, and longer stopping distances.
WARNING!
Do not connect trailer brakes to your vehicle’s hydrau-
lic brake lines. It can overload your brake system and
cause it to fail. You might not have brakes when you
need them and could have an accident.
Towing any trailer will increase your stopping distance.
When towing you should allow for additional space
between your vehicle and the vehicle in front of you.
Failure to do so could result in an accident.
Towing Requirements — Trailer Lights & Wiring
Whenever you pull a trailer, regardless of the trailer size,
stop lights and turn signals on the trailer are required for
motoring safety.
The Trailer Tow Package may includea4and7pin
wiring harness. Use a factory approved trailer harness
and connector.
The electrical connections are all complete to the vehicle
but you must mate the harness to a trailer connector.
Refer to the following illustrations.
STARTING AND OPERATING 329
5

Heated Mirrors.......................... 76
Heated Seats........................... 102
Heater, Engine Block..................... 253
High Beam Indicator..................... 175
High Beam/Low Beam Select (Dimmer) Switch . . 118
Hitches
TrailerTowing ........................ 322
Holder,Cup ........................... 158
HomeLink(Garage Door Opener) Transmitter . . . 146
Hood Release........................... 111
Hoses................................ 381
Ignition
Cables (Spark Plug Wires)................ 367
Key ................................. 14
Wiring System (Spark Plug Wires).......... 367
Illuminated Entry........................ 19
Infant Restraint.......................... 54
Inflation Pressure Tires.................... 288Information Center, Vehicle................. 183
Inside Rearview Mirror.................... 72
Instrument Cluster....................173,175
Instrument Panel and Controls.............. 172
Instrument Panel Lens Cleaning............. 393
Integrated Power Module (Fuses)............ 399
Interior Appearance Care.................. 391
Interior Fuses.......................... 393
Interior Lighting........................ 118
Interior Lights....................... 116,118
Intermittent Wipers (Delay Wipers)........... 121
Introduction............................. 4
Jack Location........................... 340
Jack Operation.......................339,342
Jacking Instructions...................... 342
Jump Starting.......................... 346
Key, Programming........................ 17
INDEX 459
10

Trailer and Tongue Weight................ 325
Wiring .............................. 329
TrailerTowingGuide ..................... 323
TrailerWeight .......................... 323
Transfer Case........................... 385
Maintenance.......................... 385
Transmission
Automatic........................254,386
Maintenance.......................... 386
Range Indicator....................... 181
Shifting ............................. 253
Transmitter Battery Service (Remote Keyless Entry) . 23
Transmitter, Garage Door Opener (HomeLink) . . 146
Transmitter, Remote Keyless Entry (RKE)........ 19
Tread Wear Indicators.................... 291
Turn Signals................... 117,175,403,404
UConnect™ (Hands-Free Phone).............. 77
Underhood Fuses.....................396,399Uniform Tire Quality Grades................ 449
Universal Transmitter..................... 146
Upholstery Care........................ 391
Vacuum/Vapor Harnesses................. 381
VanityMirrors ........................... 76
Variance, Compass....................... 196
Vehicle Identification Number (VIN)............ 8
Vehicle Loading......................284,316
Vehicle Modifications/Alterations.............. 9
Vehicle Storage.......................243,400
Video Entertainment System (Rear Seat Video
System)............................... 225
Viscosity, Engine Oil...................364,365
Warning Flasher, Hazard.................. 338
Warnings and Cautions..................... 8
Warranty Information..................... 447
Washer, Adding Fluid..................... 165
INDEX 469
10

Washers, Windshield..................120,374
Washing Vehicle......................... 390
WaxingandPolishing ..................... 390
Wheel Alignment and Balance............... 293
Wheel and Wheel Trim.................... 391
Wheel and Wheel Trim Care................ 391
Wheel Mounting........................ 344
Wind Buffeting....................... 32,155
Window Fogging........................ 242
Windows.............................. 29Power............................... 29
Windshield Defroster................ 66,234,240
Windshield Washers...................... 120
Fluid ............................... 374
Windshield Wiper Blades.................. 374
Windshield Wipers....................... 120
Wipers, Intermittent...................... 121
Wipers, Rain Sensitive.................... 122
Wiring, Ignition (Spark Plug Wires)........... 367
470 INDEX