Hummer H2. Manual - part 4

1. Move steering column to full out and down position. 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 lower instrument panel steering column cover. Disconnect steering column connectors. Remove

4 nuts and lower steering column onto instrument panel reinforcing bar. Remove upper instrument panel
steering column cover. Pull headlight switch knob rearward and remove switch knob and shaft. Remove
left instrument panel finish panel. Pull left end of finish panel rearward to unsnap retainers.

3. Remove instrument panel dimmer switch and disconnect connector. Remove 4 upper instrument panel

cluster finish panel screws located behind left instrument panel finish panel and above steering column.
Pull left end of finish panel far enough away from instrument panel to disconnect wiring connectors.
Remove instrument panel cluster finish panel.

4. Remove right instrument panel finish panel. Open glove box, release glove box door stops and cable, and

lower glove door to full open position. Remove A/C evaporator register duct. Remove 2 lower and 3
upper retaining bolts from passenger-side air bag module.

5. Disconnect air bag module connector. Remove passenger-side air bag module from vehicle. Position

passenger-side air bag module on bench with trim cover facing up.

6. To install, reverse removal procedure. Tighten air bag module retaining screws to specification. See

TORQUE SPECIFICATIONS . Tighten steering column mounting nuts to 26-33 ft. lbs. (35-45 N.m).
Install outside steering column cover screw before installing inside screw. Connect negative battery cable.
Perform SYSTEM OPERATION CHECK .

Removal & Installation (Mustang & Ranger)

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. Push sides of glove box toward each other, and lower glove box to floor. Remove right side A/C duct

(Mustang only). Remove passenger-side air bag module retaining bolts. Disconnect passenger-side air
bag module connector, located on left side of air bag. Remove air bag connector from steel reinforcement.

3. Gently pull each corner of air bag cover to disengage cover-to-instrument panel attachments. Push

passenger-side air bag module from behind instrument panel. Using both hands, pull passenger-side air
bag module from instrument panel. DO NOT handle air bag module by edges of deployment doors.

4. To install, reverse removal procedure. Tighten mounting bolts to specification. See TORQUE

SPECIFICATIONS . Perform SYSTEM OPERATION CHECK . Program radio station frequencies.

Removal & Installation (Sable & Taurus)

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. Air bag module trim cover is retained by snap-in tabs. Remove air bag module trim cover from

instrument panel. Open glove box, press sides inward, and lower glove box to floor.

3. Through glove box opening, remove 2 air bag module retaining screws. Disconnect 2 air bag module

connectors. Remove passenger-side air bag module from vehicle. Position air bag module on bench with
trim cover facing up.

4. To install, reverse removal procedure. Tighten retaining screws to specification. See TORQUE

SPECIFICATIONS . Connect negative battery cable. Perform SYSTEM OPERATION CHECK .

1998 Chevrolet Pickup C1500

GENERAL INFORMATION Air Bag Deactivation Procedures

Program radio station frequencies.

Removal & Installation (Windstar)

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 instrument cluster trim panel and left instrument panel finish panel. Remove instrument panel

finish panel retaining clips. Open glove box, press sides inward, and lower glove box to floor.

3. Remove 4 passenger-side air bag module front retaining bolts. Disconnect passenger-side air bag module

connector located on left side of module. Remove passenger-side air bag module from vehicle. Position
air bag module on bench with trim cover facing up.

4. To install, reverse removal procedure. Tighten mounting bolts to specification. See TORQUE

SPECIFICATIONS . Connect positive battery cable. Connect negative battery cable. Perform SYSTEM
OPERATION CHECK . Program radio station frequencies.

TORQUE SPECIFICATIONS

AIR BAG MODULE TORQUE SPECIFICATIONS (FORD)

Application

Driver-Side INCH Lbs.

(N.m)

Passenger-Side INCH Lbs.

(N.m)

Continental

90-122 (10.2-13.8)

62-97 (7.0-11.0)

Contour & Mystique

35-45 (4.0-5.0)

132-156 (14.9-17.6)

Crown Victoria & Grand
Marquis

24-33 (2.7-3.7)

(1)

Escort & Tracer

70-104 (7.9-11.7)

"E" Series Vans

90-107 (10.2-12.0)

(2)

Expedition & Navigator

79-106 (8.9-12.0)

67-92 (7.6-10.4)

Explorer & Mountaineer

67-92 (7.6-10.4)

"F" Series

79-106 (8.9-12.0)

67-92 (7.6-10.4)

Mustang

90-122 (10.2-13.8)

62-97 (7.0-11.0)

Mark VIII

90-122 (10.2-13.8)

(3)

Ranger

67-92 (7.6-10.4)

Sable & Taurus

90-122 (10.2-13.8)

68-92 (7.7-10.4)

Town Car

90-122 (10.2-13.8)

67-92 (7.6-10.4)

Windstar

98-115 (11.0-13.0)

71-88 (8.0-10.0)

(1)

On Crown Victoria and Grand Marquis, tighten passenger-side air bag module lower
bolts to 67-92 INCH lbs. (7.6-10.4 N.m) and upper bolts to 19-25 INCH lbs. (2.1-2.8
N.m).

(2)

On "E" Series Vans, tighten passenger-side air bag module nuts to 14-19 ft. lbs. (19-
26 N.m).

(3)

On Mark VIII, tighten passenger-side air bag module 2 lower bolts to 62-97 INCH
lbs. (7.0-11.0 N.m) and 3 upper bolts to 9-18 INCH lbs. (1.0-2.0 N.m).

1998 Chevrolet Pickup C1500

GENERAL INFORMATION Air Bag Deactivation Procedures

GENERAL MOTORS

The following models are equipped with a driver-side only air bag system: 3500 Series "G" Vans with Camper,
Cutaway, or RV package. All other models are equipped with driver-side and passenger-side air bag systems.

Catera, DeVille, Prizm, Silhouette, Trans Sport and Venture may be equipped with driver and front passenger
side-impact air bags and seat belt pretensioners.

On "C" and "K" series pickups equipped with an air bag system, AIR BAG will be molded into the middle of
the driver-side air bag cover and into the passenger-side air bag vinyl trim cover. There will also be an air bag
warning light on the instrument panel which comes on during bulb check.

SYSTEM OPERATION CHECK

Catera

Turn ignition switch from OFF position to RUN position. If air bag system is operating normally, AIR BAG
warning light will come on for 3-4 seconds and then go out. If AIR BAG warning light does not operate as
specified a system malfunction is indicated.

All Other Models

1. On "C" and "K" series pickups equipped with a passenger-side air bag ON/OFF switch, ensure ON/OFF

switch is in ON position.

2. On all models, turn ignition switch to RUN position. Ensure AIR BAG warning light flashes 7 times and

stays off. If AIR BAG warning light operation is as specified, system is functioning normally.

On all models, the following AIR BAG warning light conditions indicate possible system failure:

Light does not come on at all.

Light comes on while vehicle is driven.

Light flashes 7 times and remains on.

Light flashes 4 times during bulb check.

Light does not flash, but remains on when ignition is turned on.

Air bag system faults are often caused by a disconnected or loose electrical connector due to previous service on
vehicle. Always check Yellow 2-pin connector(s) at base of steering column.

WARNING:

On "C" and "K" series pickups equipped with a passenger-side air bag,
there is a passenger-side air bag ON/OFF switch. 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

SERVICE PRECAUTIONS

Observe the following service precautions when working with air bag systems:

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. If vehicle is equipped with
passenger-side air bag, both modules (driver and passenger) MUST be disabled. See DISABLING &
ACTIVATING AIR BAG SYSTEM .

After repairs, stay well away from air bag module(s) and turn ignition switch to RUN position. Ensure
AIR BAG warning light is working properly and no system faults are indicated. See SYSTEM
OPERATION CHECK .

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

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

When placing a live air bag module 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.

After deployment, air bag surface may contain deposits of sodium hydroxide, which can irritate skin.
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.

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

DO NOT carry seat belt pretensioner by wiring harness or connector. Seat belt pretensioner can be carried
by piston tube. When handling a live seat belt pretensioner, DO NOT touch seat belt pretensioner in cable
area between buckle and mounting bolt hole. DO NOT cover pretensioner piston tube opening with hands
or point open end at yourself or others.

Coil assembly must be replaced whenever air bag is deployed. Replace SDM, driver-side air bag module
or passenger-side air bag module if it has been dropped from a height greater than 3 feet.

Electrical sources should never be allowed near inflator on back of air bag module.

If water enters the vehicle's interior and soaks the carpet, the SDM or SDM harness connector may need
to be replaced. Inspect the affected area and remove all the water. Repair the water damage, replace the
SDM harness connector, and replace the SDM. Failure to do this may result in accidental air bag
deployment and possible personal injury.

If air bag system is not fully functional for any reason, vehicle should not be driven until system is
repaired. 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 repairs can be made.

DISABLING & ACTIVATING AIR BAG SYSTEM

WARNING:

System reserve capacitor inside DERM or Sensing and Diagnostic Module
(SDM) retains sufficient voltage to deploy air bag(s) for at least 10
MINUTES after air bag system fuse is removed. Servicing air bag system
before 10 minutes has elapsed may cause accidental air bag deployment
and possible personal injury.

1998 Chevrolet Pickup C1500

GENERAL INFORMATION Air Bag Deactivation Procedures

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