Cherokee 4WD L6-4.0L VIN S (1998)
The airbag module inflator assembly contains sodium azide and potassium nitrate. These materials are poisonous and extremely flammable. Contact with
acid, water or heavy metals may produce harmful or irritating gases (sodium hydroxide is formed in the presence or moisture) or combustible
compounds. In addition, the passenger airbag module contains argon gas pressurized to over 2500 PSI. do not attempt to dismantle an airbag module or
tamper with its inflator. Do not puncture, incinerate or bring into contact with electricity do not store at temperatures exceeding 93°c (200° f).
The DAB is connected to the ACM through a mechanical device called a clock spring. The clockspring allows the DAB to be hardwired through the
steering wheel to the ACM. A yellow quick disconnect connector is located under the steering column at the lower edge of the knee blocker panel. This
connector when disconnected will disable both the DAB and PAB modules.
The airbag system is a sensitive, complex electromechanical unit before attempting to diagnose or service any airbag system or related steering, steering
column or instrument panel components, you must first disconnect and isolate the battery negative (ground) cable. Wait two minutes for the system
capacitor to discharge before further system service. This is the only sure way to disable the airbag system. Failure to do this could result in accidental
deployment and possible personal injury when a steering column has an airbag module attached, never place the column on the floor or on any other
surface with the steering wheel or airbag module face down.
Passenger Airbag Module (PAB)
The airbag door on the instrument panel above the glove box is the most visible pa1 of the passenger side airbag system. Under the airbag door are the
airbag cushion and its supporting components. The airbag module includes a housing to which the cushion, inflator and canister of compressed gas are
attached and sealed. The airbag module cannot be repaired and must be replaced if deployed or damaged. The inflator seals the hole in the airbag
cushion so it can discharge the gas it produces directly into the cushion when supplied with the proper electrical signal. The airbag door is secured to the
airbag module and the instrument panel base, and has predetermined breakout lines concealed beneath its decorative cover. Upon airbag deployment, the
airbag door will split at the breakout lines and the door will pivot out of the way. The airbag door is serviced as a unit with the airbag module. If an
airbag module assembly is defective and non-deployed, refer to the Chrysler Corporation current parts return list in the Warranty Policies and Procedures
for the proper handling procedures.
The airbag module inflator assembly contains sodium azide and potassium nitrate. These materials are poisonous and extremely flammable. Contact with
acid, water or heavy metals may produce harmful and irritating gases (sodium hydroxide is formed in the presence of moisture) or combustible
compounds. In addition, the passenger airbag module contains argon gas pressurized to over 2500 PSI. Do not attempt to dismantle an airbag module or
tamper with its inflator. Do not puncture, incinerate or bring into contact with electricity do not store at temperatures exceeding 93°c (200°f).
A yellow quick disconnect connector is located under the steering column at the lower edge of the knee blocker panel. This connector when disconnected
will disable both the DAB and PAB module.
The airbag system is a sensitive, complex electromechanical unit. Before attempting to diagnose or service any airbag system or related steering wheel,
steering column or instrument panel components, you must first disconnect and isolate the battery negative (ground) cable. Wait two minutes for the
system capacitor to discharge before further system service. This is the only sure way to disable the airbag system. Failure to do this could result in
accidental airbag deployment and possible personal injury.
The PAB has a pressure switch to monitor the high pressure canister, which was used in the 1997 model year. The switch and wiring is monitored by the
ACM. A "Pressure Switch Circuit open/shorted" DTC will become active if the circuit or switch is open or shorted. The same DTC will set if the
pressure falls below a minimum value.
Replace airbag system components only with parts specified in the Chrysler Mopar parts catalog. Substitute parts may appear interchangeable, but
internal differences may result in inferior occupant protection. The fasteners, screws and bolts originally used for the airbag system components have
special coatings and are specifically designed for the airbag system. They must never be replaced with any substitutes. Anytime a new fastener is needed,
replace it with the correct fasteners provided in the service package or specified in the Chrysler Mopar parts catalog.
Airbag Diagnostic Trouble Codes
Airbag diagnostic trouble codes consist of active and stored codes. If more than one code exists, diagnostic priority should be given to the active code(s).
Each diagnostic trouble code is diagnosed by following a specific testing procedure. The diagnostic test procedures contain step-by-step instructions for
determining the cause of the trouble codes. It is not necessary to perform all of the tests to diagnose an individual code.
Always begin by reading the diagnostic trouble codes using the DRB. This procedure begins with AIR-BAG TEST 1 A - Identifying Airbag System
Problems. This will direct you to the specific test(s) that must be performed. If more than one code exists, diagnostic priority should be given to the
active code(s).
Active diagnostic trouble codes for the airbag system are not permanent and will change the moment the reason for the code is corrected. In certain test
procedures, diagnostic trouble codes are used as a diagnostic tool.
Active Codes
An active trouble code indicates an ongoing malfunction. This means that the defect is currently there every time the airbag control module checks that
