Hummer H2. Instruction - page 1

GENERAL INFORMATION

Air Bag Deactivation Procedures

SPECIAL CARE DURING MECHANICAL REPAIRS

In some instances, it may be necessary to remove the steering column or instrument panel to access blower
motor housing, heater assembly, evaporator assembly and other related A/C-heater system components.
Observe specific manufacturer SERVICE PRECAUTIONS when working on vehicle with an air bag system.

Electrical sources should NEVER be allowed near inflator on back of air bag module. NEVER probe air bag
system electrical wires with an analog volt-ohmmeter or test light. Always disable air bag system before
servicing vehicle. See appropriate DISABLING & ACTIVATING AIR BAG SYSTEM procedure. Failure to
disable system properly may result in accidental air bag deployment and possible personal injury.

If air bag system is not fully functional for any reason, DO NOT drive vehicle until system is repaired and
functions properly. DO NOT remove bulbs, modules, sensors or other components, or in any way disable
system from operating normally. If air bag system is not functional, park vehicle until system is repaired and
functions properly.

CHRYSLER CORP.

All Chrysler vehicles are equipped with driver-side and passenger-side air bags. Unless specific models are
mentioned, the following procedures apply to all models with an air bag system.

SYSTEM OPERATION CHECK

1. Ensure negative battery cable or negative battery cable remote terminal is disconnected and isolated.

Connect Diagnostic Read-Out Box III (DRB-III) scan tool to 16-pin Data Link Connector (DLC) located
left of steering column at lower edge of instrument panel. Turn ignition switch to ON position and exit
vehicle. Ensure latest version of correct DRB cartridge is being used.

2. After ensuring there is no one inside vehicle, connect negative battery cable or negative battery cable

remote terminal. Using DRB, read and record active and any stored Diagnostic Trouble Codes (DTCs).
Diagnose as necessary. Clear DTCs and recheck for DTCs. If a problem still exists DTC data will not
clear.

3. Ignition switch should still be in ON position. Ensure no one is inside vehicle. From a position outside

vehicle and away from air bag modules (in case of air bag deployment), turn ignition switch to OFF
position for about 10 seconds, and then back to ON position. Observe AIR BAG indicator. It should come
on for 6-8 seconds and then go out, indicating system is functioning properly.

4. If AIR BAG indicator fails to come on, comes on and stays on, or comes on while driving, a system

malfunction exists. Perform air bag system self-diagnostics, and repair air bag system.

WARNING:

To avoid injury from accidental air bag deployment, read and carefully
follow all appropriate SERVICE PRECAUTIONS and DISABLING &
ACTIVATING AIR BAG SYSTEM procedures.

1998 Chevrolet Pickup C1500

GENERAL INFORMATION Air Bag Deactivation Procedures

1998 Chevrolet Pickup C1500

GENERAL INFORMATION Air Bag Deactivation Procedures

SERVICE PRECAUTIONS

Observe the following precautions when working with or near air bag systems:

z

Disconnect and isolate negative battery cable before servicing vehicle. Allow system capacitor to
discharge for 2 minutes before removing air bag components.

z

Disable air bag system before servicing any air bag system or steering column component. Failure to do
this may result in accidental air bag deployment and possible personal injury. See DISABLING &
ACTIVATING AIR BAG SYSTEM
.

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Always wear safety glasses when servicing or handling an air bag.

z

Air bag module must be stored in its original special container until used for service. It must be stored in
a clean, dry place, away from sources of extreme heat, sparks and high electrical energy.

z

When placing a live air bag on a bench or other surface, always face air bag and trim cover up, away from
surface. This will reduce motion of module if accidentally deployed.

z

When a steering column has been removed from vehicle with an air bag module attached, never place
column on the floor or any other surface with the steering wheel or air bag module face down.

z

After deployment, air bag surface may contain sodium hydroxide deposits, which irritate skin. Sodium
hydroxide is a product of gas generant combustion. Always wear safety glasses, rubber gloves and a long-
sleeved shirt during clean-up. Wash hands using mild soap and water. Follow correct disposal procedures.

z

When carrying a live air bag module, point trim cover away from your body to minimize injury in case of
accidental deployment.

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DO NOT disconnect or connect air bag module while battery is connected. Never disassemble air bag
module. There are no serviceable parts within the module.

z

The air bag control module contains an impact sensor which enables the system to deploy air bags. Never
strike the air bag control module. If air bag control module is accidentally dropped, module MUST be
replaced.

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Clockspring, air bag module, and seat belt pre-tensioner (if equipped) MUST be replaced if air bag is
deployed.

z

On Caravan, Town & Country and Voyager, when driver-side air bag is deployed because of a collision,
the complete steering column assembly, steering column clockspring, steering wheel, driver-side air bag
cover/horn module, and lower steering coupler MUST be replaced.

z

On Dakota, Durango and Ram Van/Wagon, driver-side air bag 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.

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On Dakota and Ram Pickup, ALWAYS remove and replace the air bag control module and its mounting
bracket as a unit. DO NOT transfer the module to another bracket.

z

On Ram Pickups, whenever passenger-side air bag module is removed and reinstalled, air distribution
panel outlet barrels in passenger-side air bag door panel outlet housings MUST be replaced. Panel outlet
barrels must be replaced with NEW barrels. Occupant injuries could result during air bag deployment if
outlet barrels are not replaced.

z

On Ram Pickups, after air bag deployment, both air bag modules, clockspring, and the steering column
assembly MUST be replaced. During air bag deployment, these components will be damaged or
weakened, and are NOT intended to be reused.

1998 Chevrolet Pickup C1500

GENERAL INFORMATION Air Bag Deactivation Procedures

z

Fasteners, screws and bolts used to fasten air bag components have a special coating and are specifically
designed for air bag system. Use only original equipment fasteners.

DISABLING & ACTIVATING AIR BAG SYSTEM

Disabling & Activating Air Bag System

1. Turn ignition off. On Avenger, Caravan, Dakota, Durango, Neon, Ram Pickup, Ram Van/Wagon,

Sebring Coupe, Talon and Town & Country, disconnect and isolate negative battery cable.

2. On Breeze, Cirrus, Concorde, Intrepid, Sebring Convertible and Stratus, disconnect and isolate negative

battery cable remote terminal. On Concorde and Intrepid battery remote cable is located on right strut
tower. On Breeze, Cirrus, Sebring Convertible and Stratus, battery remote cable is located on left strut
tower.

3. On all models, wait at least 2 MINUTES for system capacitor to discharge before servicing or working

near air bag system components. To activate system, turn ignition off and reconnect negative battery
cable or negative battery cable remote terminal. See SYSTEM OPERATION CHECK .

FORD MOTOR CO.

All Ford vehicles are equipped with a dual air bag system. Unless specific models are mentioned, the following
procedures apply to all models with an air bag system.

SYSTEM OPERATION CHECK

1. Turn ignition switch to RUN position. Observe AIR BAG indicator with air bags installed. If AIR BAG

indicator comes on for approximately 6 seconds then goes out, air bag system is functioning properly and
no fault codes exist.

2. If a fault code is detected in air bag system during system check, AIR BAG indicator will fail to light,

stay on continuously or flash.

3. The AIR BAG indicator may not start flashing for approximately 30 seconds (16 seconds on Mark VIII)

after ignition switch has been turned to RUN position. This time is required for diagnostic monitor to
complete test air bag system.

4. If AIR BAG indicator is inoperative and a system fault exists, an audible tone of 5 sets of 5 beeps will be

WARNING:

Wait at least 2 MINUTES after disconnecting negative battery cable.
Servicing air bag system before 2 minutes elapse may cause accidental
air bag deployment and possible personal injury.

WARNING:

Ram Pickup models are equipped with a Passenger Air Bag Disarm
Switch (PADS) used to disarm passenger-side air bag module. This
switch is to be used when child restraint devices are positioned in right
front seat. This switch is ONLY used to disarm passenger-side air bag
module, it CANNOT disarm entire air bag system and should NOT be used
in place of disabling and activating air bag system procedure.

1998 Chevrolet Pickup C1500

GENERAL INFORMATION Air Bag Deactivation Procedures

heard. If this occurs, air bag system service is required.

SERVICE PRECAUTIONS

Observe the following precautions when working with air bag systems:

z

Disable air bag system before servicing any air bag system or steering column components. Failure to do
so may result in accidental air bag deployment and possible personal injury. See DISABLING &
ACTIVATING AIR BAG SYSTEM
.

z

Because of critical system operating requirements, DO NOT service sensors, clockspring, air bag
diagnostic monitor or air bag module. Servicing is made by replacement only.

z

Always wear gloves and safety glasses when servicing an air bag-equipped vehicle or handling an air bag.

z

When carrying a live air bag, point air bag and trim cover away from your body. This minimizes chance
of injury in case of accidental deployment.

z

When placing a live air bag on a bench or other surface, always face air bag and trim cover up, away from
surface. This will reduce motion of module if it is accidentally deployed.

z

After deployment, air bag surface may contain deposits of sodium hydroxide, which may irritate skin.
Sodium hydroxide is a product of the gas generant combustion. Always wear gloves and safety glasses
when handling a deployed air bag. Wash hands using mild soap and water. Follow correct disposal
procedures.

z

Air bag modules with discolored or damaged cover deployment doors must be replaced, not repainted.

z

Vehicle impact sensor orientation is critical for proper system operation. If vehicle is involved in a
collision, inspect sensor mounting brackets for deformation. Ensure body structure in sensor mounting
area is restored to its original condition. If damaged, the impact sensor must be replaced regardless of
whether or not air bag is deployed.

z

Never probe connectors on air bag module. Doing so may cause air bag deployment and personal injury.

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The instruction to DISCONNECT always refers to a component connector. DO NOT remove a
component from vehicle when instructed to DISCONNECT.

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Air bag simulators MUST be removed and the air bags reconnected when the air bag system is
reactivated.

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After any servicing, perform SYSTEM OPERATION CHECK .

DISABLING & ACTIVATING AIR BAG SYSTEM

Disabling System (Continental, Crown Victoria, Grand Marquis & Town Car)

1. Record preset radio station frequencies. Disconnect negative battery cable. Wait at least one minute. This

time is required for back-up power supply in diagnostic monitor to deplete its stored energy.

2. Remove driver-side air bag module. See DRIVER-SIDE AIR BAG MODULE . Disconnect driver-side

air bag module connector. Attach air bag simulator to air bag connector to simulate driver-side air bag.

WARNING:

If vehicle is equipped with a passenger-side air bag, both driver-side and
passenger-side air bag modules MUST be disconnected and an air bag
simulator installed to wiring harness.

1998 Chevrolet Pickup C1500

GENERAL INFORMATION Air Bag Deactivation Procedures

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