Jeep 200 Cherokee, Service Manual

Page: 512 / 2119

DRB contains the latest version of the proper DRB
software.
(3) Using the DRB, read and record the active
Diagnostic Trouble Code (DTC) data.
(4) Read and record any stored DTC data.
(5) See the proper Diagnostic Procedures manual if
any DTC is found in Step 3 or Step 4.
(6) After completing the necessary repairs, try to
erase the stored DTC data. If any problems remain,
the stored DTC data will not erase. See the proper
Diagnostic Procedures manual for the procedures to
diagnose any stored DTC that will not erase.
(7) With the ignition switch still in the On posi-
tion, check to be certain that nobody is in the vehicle.
(8) From outside of the vehicle (away from the air-
bags in case of an accidental deployment) turn the
ignition switch to the Off position for about ten sec-
onds, and then back to the On position. Observe the
airbag indicator lamp in the instrument cluster. It
should light for six to eight seconds, and then go out.
This indicates that the airbag system is functioning
normally.
NOTE: If the airbag indicator lamp fails to light, or
lights and stays on, there is an airbag system mal-
function. See the proper Diagnostic Procedures
manual to diagnose the problem.
SERVICE PROCEDURES
AIRBAG SYSTEM
NON-DEPLOYED
At no time should any source of electricity be per-
mitted near the inflator on the back of an airbag
module. When carrying a non-deployed airbag mod-
ule, the trim cover or airbag side of the module
should be pointed away from the body to minimize
injury in the event of an accidental deployment. If
the module is placed on a bench or any other surface,
the trim cover or airbag side of the module should be
face up to minimize movement in the event of an
accidental deployment.
In addition, the airbag system should be disarmed
whenever any steering wheel, steering column, or
instrument panel components require diagnosis or
service. Failure to observe this warning could result
in accidental airbag deployment and possible per-
sonal injury. Refer to Group 8E - Instrument
Panel Systems for additional service procedures on
the instrument panel components. Refer to Group
19 - Steering for additional service procedures on
the steering wheel and steering column components.
DISPOSAL OF NON-DEPLOYED AIRBAG MODULES
All damaged or faulty and non-deployed driver side
or passenger side airbag modules which are replaced
on vehicles are to be returned. If an airbag module
assembly is faulty or damaged and non-deployed,
refer to the parts return list in the current Chrysler
Corporation Warranty Policies and Procedures man-
ual for the proper handling and disposal procedures.
DEPLOYED
Any vehicle which is to be returned to use after an
airbag deployment, must have both airbag modules,
the passenger side airbag module door and the clock-
spring replaced. These components will be damaged
or weakened as a result of an airbag deployment,
which may or may not be obvious during a visual
inspection, and are not intended for reuse.
Other vehicle components should be closely
inspected, but are to be replaced only as required by
the extent of the visible damage incurred.
STORAGE
An airbag module must be stored in its original,
special container until used for service. Also, it must
be stored in a clean, dry environment; away from
sources of extreme heat, sparks, and high electrical
energy. Always place or store an airbag module on a
surface with its trim cover or airbag side facing up,
to minimize movement in case of an accidental
deployment.
CLEANUP PROCEDURE
Following an airbag system deployment, the vehi-
cle interior will contain a powdery residue. This res-
idue
consists primarily of harmless particulate
by-products of the small pyrotechnic charge used to
initiate the airbag deployment propellant. However,
this residue will also contain traces of sodium
hydroxide powder, a chemical by-product of the pro-
pellant material that is used to generate the nitrogen
gas that inflates the airbag. Since sodium hydroxide
powder can irritate the skin, eyes, nose, or throat, be
sure to wear safety glasses, rubber gloves, and a
long-sleeved shirt during cleanup (Fig. 2).
WARNING: IF YOU EXPERIENCE SKIN IRRITATION
DURING CLEANUP, RUN COOL WATER OVER THE
AFFECTED AREA. ALSO, IF YOU EXPERIENCE
IRRITATION OF THE NOSE OR THROAT, EXIT THE
VEHICLE FOR FRESH AIR UNTIL THE IRRITATION
CEASES. IF IRRITATION CONTINUES, SEE A PHYSI-
CIAN.
Begin the cleanup by removing the airbag modules
from the vehicle. Refer to Driver Side Airbag Mod-
ule and Passenger Side Airbag Module in the
XJ
PASSIVE RESTRAINT SYSTEMS 8M - 5
DIAGNOSIS AND TESTING (Continued)