• | An air bag and SDM should not be used if it has been dropped from a height
of 0.9 meters (3 feet) or greater. |
• | When an SDM is replaced, it must be oriented with the arrow on the SDM
pointing toward the front of the vehicle. |
• | It is very important for the SDM to be installed flat on the mounting
surface, parallel to the vehicle's longitudinal axis. |
• | To avoid setting DTCs, do not apply power to the SIR unless all components
are connected or a diagnostic chart requests it. |
• | The SIR Diagnostic System Check must be the starting point of any SIR
diagnostics. The SIR Diagnostic System Check will verify proper air bag indicator
operation and will lead you to the correct chart to diagnose any SIR malfunctions.
Bypassing these procedures may result in extended diagnostic time and incorrect parts
replacement. |
Air Bag Deployment - Inside of Vehicle
Caution: When deploying a SIR component for disposal, perform the deployment procedures
in the order listed. Failure to observe the procedures in the order listed may result
in personal injury.
Deploy the air bags before disposing them. If a vehicle is to be scrapped, the
air bag may be deployed inside the vehicle.
- Wear gloves and eye protection during the disposal procedure.
- Do not connect the voltage source until after having completed all other
preparations for the deployment of air bags.
- Before deploying the air bags, remove all loose objects from the air bag's
expansion area.
- Deploy the air bags only in an evacuated area. Service personnel who must
be present during the deployment should be at least 10 meters (33 feet)
in front of the vehicle.
- Deploy the air bags with the vehicle doors closed and the side windows
open.
- If the deployment fails, disconnect the voltage source and wait 5 minutes
before approaching the vehicle.
- Allow a deployed air bag module or pretensioner to cool for 30 minutes
before handling.
Deployment Procedure - Inside of Vehicle
Caution: Refer to Sensing and Diagnostic Module Handling Caution in the Preface section.
Caution: Refer to Battery Disconnect Caution in the Preface section.
- Disconnect both battery cables and place the battery at least 10 meters
(33 feet) from the vehicle.
- Remove the driver side knee bolster or instrument panel lower cover from
the steering column. Refer to
Knee Bolster Replacement
in Interior Trim.
- At the lower steering column, cut the 2 wires leading from the
SIR harness to the clock spring.
- Strip 13 mm (0.5 in) of the insulation from the end of the
wires leading to the clock spring.
- Use 2 additional wires, each at least 10 meters (33 feet)
long, to reach from the deployment battery to the inflator module.
- Strip 13 mm (0.5 in) of the insulation from the end of these
2 additional wires.
- Twist the 2 wires together at one end.
- Place the twisted ends of the 2 wires near the deployment battery.
Do not connect the wires to the battery at this time.
- Using the free ends of the 10 meters (33 feet) wires leading
to the clock spring, make 2 splices, 1 at each wires from the air bag
modules.
- Wrap the wires with insulation tape.
- Now that the free ends of the 10 meters (33 feet) wires
are spliced to the air bag module wires, and the ends that are twisted together are
near the deployment battery, clear the area.
- Untwist the wires that are near the deployment battery.
- Touch 1 wire to the positive battery terminal and touch the other
wire to the negative battery terminal. The air bag will deploy.
- Repeat this procedure for the passenger air bag, side air bags, and pretensioners.
- Using proper precautions, dispose of the deployed air bags/pretensioners.
Refer to
Inflator Module Handling and Scrapping
.
Air Bag Module Deployment - Outside of Vehicle
If the vehicle is within the warranty period, contact the General Motors regional
service manager for approval or special instructions before deploying the air bag
modules.
Deploy air bag modules in following situations :
• | If an air bag module is damaged during transit, storage, or service |
Preliminary Check
Caution: When deploying a SIR component for disposal, perform the deployment procedures
in the order listed. Failure to observe the procedures in the order listed may result
in personal injury.
Deploy the air bags before disposing them. If a vehicle to be scrapped, the
air bag may be deployed inside the vehicle.
- Wear gloves and eye protection during the disposal procedure.
- Do not connect the voltage source until after having completed all other
preparations for the deployment of air bags.
- Before deploying the air bags, remove all loose objects from the air bag's
expansion area.
- Deploy the air bags only in an evacuated area. Service personnel who must
be present during the deployment should be at least 10 meters (33 feet)
in front of the vehicle.
- Deploy the air bags with the vehicle doors closed and the side windows
open.
- If the deployment fails, disconnect the voltage source and wait 5 minutes
before approaching the vehicle.
- Allow a deployed air bag module or pretensioner to cool for 30 minutes
before handling.
Deployment Procedure - Outside of Vehicle
- Position the air bag module face up, on flat ground outdoors, at least
10 meters (33 feet) from any obstacles or people.
- Place a vehicle battery at least 10 meters (33 feet) away
from the air bag module.
- Deploy the air bag module.
- If you do not have a deployment tool, follow the procedure below.
- Cut the yellow wires to the air bag module/pretensioner.
- Strip 13 mm (0.5 in) of the insulation from the end of the
wires leading to the air bag module/pretensioner.
- Use 2 additional wires, each at least 10 meters (33 feet)
long, to reach from the deployment battery to the air bag module/pretensioner.
- Strip 13 mm (0.5 in) of the insulation from the ends of
these 2 additional wires.
- Twist the 2 wires together at one end.
- Place the twisted ends of the 2 wires near the deployment battery.
Do not connect the wires to the battery at this time.
- Using the free ends of the 10 meters (33 feet) wires leading
to the air bag module/pretensioner, make 2 splices, 1 at each wire from
the air bag module/pretensioner.
- Wrap the splices with insulating tape.
- Now that the free ends of the 10 meters (33 feet) wires
are spliced to the air bag module/pretensioner wires, and the ends that are twisted
together are near the deployment battery, clear the area.
- Untwist the wires that are near the deployment battery.
- Touch 1 wire to the positive battery terminal and touch the other
wire to the negative battery terminal. The air bag will deploy.
- Using proper precautions, dispose of the deployed air bags/pretensioners.
Refer to
Inflator Module Handling and Scrapping
.
Deployed Air Bag Module Disposal Procedure
Caution: Refer to SIR Inflator Module Disposal Caution in the Preface section.
Caution: Refer to SIR Inflatable Module Deployment Outside Vehicle Caution in the Preface section.
Important: Be sure to wear gloves and eye protection
during the disposal procedure.
Deploy an air bag or pretensioner before disposing of it.
This includes those in a whole vehicle being scrapped. If the vehicle is still
within the warranty period contact the General Motors regional service manager for
approval or special instructions before deploying an air bag module or a pretensioner.
A deployed air bag module or pretensioner should be disposed of in the same manner
as other scrap parts, with the addition of the following steps:
- Place the deployed air bag or pretensioner in a sturdy plastic bag.
- Seal the plastic bag securely.
- Wash your hands and rinse them with water after handling a deployed air
bag.