2021 JEEP CHEROKEE wiring

SAFETY
108
Supplemental Restraint Systems (SRS)
Some of the safety features described in this
section may be standard equipment on some
models, or may be optional equipment on
others. If you are not sure, ask an authorized
dealer.
The air bag system must be ready to protect
you in a collision. The Occupant Restraint
Controller (ORC) monitors the internal
circuits and interconnecting wiring associ-
ated with the electrical Air Bag System
Components. Your vehicle may be equipped
with the following Air Bag System Compo -
nents:
Air Bag System Components
Occupant Restraint Controller (ORC)
Air Bag Warning Light
Steering Wheel and Column
Instrument Panel
Knee Impact Bolsters
Driver and Front Passenger Air Bags
Seat Belt Buckle Switch
Supplemental Side Air Bags
Supplemental Knee Air Bags
Front and Side Impact Sensors
Seat Belt Pretensioners
Seat Track Position Sensors
Air Bag Warning Light
The Occupant Restraint Controller
(ORC) monitors the readiness of the
electronic parts of the air bag
system whenever the ignition
switch is in the START or ON/RUN position.
If the ignition switch is in the OFF position or
in the ACC position, the air bag system is not
on and the air bags will not inflate. The ORC contains a backup power supply
system that may deploy the air bag system
even if the battery loses power or it becomes
disconnected prior to deployment.
The ORC turns on the Air Bag Warning Light
in the instrument panel for approximately
four to eight seconds for a self-check when
the ignition switch is first in the ON/RUN
position. After the self-check, the Air Bag
Warning Light will turn off. If the ORC
detects a malfunction in any part of the
system, it turns on the Air Bag Warning
Light, either momentarily or continuously. A
single chime will sound to alert you if the
light comes on again after initial startup.
The ORC also includes diagnostics that will
illuminate the instrument panel Air Bag
Warning Light if a malfunction is detected
that could affect the air bag system. The
diagnostics also record the nature of the
malfunction. While the air bag system is
designed to be maintenance free, if any of
the following occurs, have an authorized
dealer service the air bag system
immediately.
Failure to replace the seat belt assembly
could increase the risk of injury in
collisions.
Do not use the Automatic Locking Mode
to restrain occupants who are wearing
the seat belt or children who are using
booster seats. The locked mode is only
used to install rear-facing or
forward-facing child restraints that have
a harness for restraining the child.
WARNING! (Continued)
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SAFETY
114
NOTE:
Air bag covers may not be obvious in the inte-
rior trim, but they will open during air bag
deployment. Rollover Events (If Equipped With Rollover
Sensing)
Side Air Bags and seat belt pretensioners are
designed to activate in certain rollover events
(if equipped with rollover sensing). The
Occupant Restraint Controller (ORC) deter
-
mines whether deployment in a particular
rollover event is appropriate, based on the
severity and type of collision. Vehicle
damage by itself is not a good indicator of
whether or not Side Air Bags and seat belt
pretensioners should have deployed.
The Side Air Bags and seat belt preten -
sioners will not deploy in all rollover events.
The rollover sensing system determines if a
rollover event may be in progress and
whether deployment is appropriate. In the
event the vehicle experiences a rollover or
near rollover event, and deployment is appro -
priate, the rollover sensing system will
deploy the Side Air Bags and seat belt
pretensioners on both sides of the vehicle.
The SABICs may help reduce the risk of
partial or complete ejection of vehicle occu -
pants through side windows in certain roll -
over or side impact events.
Air Bag System Components
NOTE:
The Occupant Restraint Controller (ORC)
monitors the internal circuits and intercon -
necting wiring associated with electrical Air
Bag System Components listed below:
Occupant Restraint Controller (ORC)
Air Bag Warning Light
Steering Wheel and Column
Instrument Panel
Knee Impact Bolsters
Driver and Front Passenger Air Bags
Seat Belt Buckle Switch
Supplemental Side Air Bags
Supplemental Knee Air Bags
Front and Side Impact Sensors
Seat Belt Pretensioners
Seat Track Position Sensors
WARNING!
Side Air Bags need room to inflate. Do
not lean against the door or window. Sit
upright in the center of the seat.
Being too close to the Side Air Bags
during deployment could cause you to be
severely injured or killed.
Relying on the Side Air Bags alone could
lead to more severe injuries in a colli -
sion. The Side Air Bags work with your
seat belt to restrain you properly. In
some collisions, Side Air Bags won’t
deploy at all. Always wear your seat belt
even though you have Side Air Bags.
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SAFETY
116
(Continued)
Your vehicle may also be designed to perform
any of these other functions in response to
the Enhanced Accident Response System:
Turn off the Fuel Filter Heater, Turn off
the HVAC Blower Motor, Close the HVAC
Circulation Door
Cut off battery power to the:
Engine
Electric Motor (if equipped)
Electric power steering
Brake booster
Electric park brake
Automatic transmission gear selector
Horn
Front wiper
Headlamp washer pumpNOTE:
After an accident, remember to cycle the
ignition to the STOP (OFF/LOCK) position
and remove the key from the ignition switch
to avoid draining the battery. Carefully check
the vehicle for fuel leaks in the engine
compartment and on the ground near the
engine compartment and fuel tank before
resetting the system and starting the engine.
If there are no fuel leaks or damage to the
vehicle electrical devices (e.g. headlights)
after an accident, reset the system by
following the procedure described below. If
you have any doubt, contact an authorized
dealer.
Enhanced Accident Response System Reset
Procedure
In order to reset the Enhanced Accident
Response System functions after an event,
the ignition switch must be changed from
ignition START or ON/RUN to ignition OFF.
Carefully check the vehicle for fuel leaks in
the engine compartment and on the ground
near the engine compartment and fuel tank
before resetting the system and starting the
engine.
Maintaining Your Air Bag System
WARNING!
Modifications to any part of the air bag
system could cause it to fail when you
need it. You could be injured if the air
bag 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 passenger side of the
instrument panel. Do not modify the
front bumper, vehicle body structure, or
add aftermarket side steps or running
boards.
It is dangerous to try to repair any part of
the air bag system yourself. Be sure to
tell anyone who works on your vehicle
that it has an air bag system.
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267
EXTERIOR:
• Rock Rails• Front End Cover• Hood Decal
• Wheels • Splash Guards• Skid Plates
• Wheel Locks • Locking Gas Cap• Spare Tire Kit

• License Plate Frames • Side Window Air Deflectors
• Camping Tent
• Valve Stem Caps • Vehicle Cover• Chrome Mirror Cover
INTERIOR:
• Premium Floor Mats • Emergency Roadside Kit
• Molded Cargo Tray
• Security Cover • Bright Pedal Kit• Katzkin Leather Interiors
• All-Weather Mats • Door Sill Guards• Carpet Cargo Mat
ELECTRONICS:
• Remote Start • Speaker Upgrades• Electronic Vehicle Tracking System
CARRIERS:
• Hitch Receiver • Sport Utility Bars• Roof-mount Bike Carrier
• Hitch Balls • Roof Top Cargo Basket• Roof Cargo Box Carrier
• Ball Mounts • Roof-mount Ski and Snowboard Carrier • Roof-Mount Kayak Carrier
• Hitch Receiver Wiring Harness • Roof-Mount Canoe Carrier• Roof-Mount Surfboard Carrier
2020_JEEP_CHEROKEE_UG_RHD_UK.book Page 267