Driver side air bag module
Components Removal / installation
SRS AIRBAG
DRIVER SIDE AIR BAG MODULE
EXPLODED VIEW
REMOVAL
WARNING:
The following service operations include the works which may affect the SRS airbag system. Before starting work, always be sure to confirm the precautions related to the SRS airbag system. (Refer to 
)
)1. Precautions
CAUTION:
After turning the ignition switch to OFF, you may have to wait for a while before disconnecting the battery terminals. Check appropriate precautions for battery terminal disconnection before proceeding. (Refer to )
)2. Disconnection of the battery ground terminal
(1) Turn the ignition switch to OFF, disconnect the battery ground terminal, and then wait for 60 seconds before starting the work. (Refer to )
)WARNING:
The air bag and pretensioner system are fitted with a backup power supply. If you start the work within 60 seconds after disconnecting the battery ground terminal, the air bag may be activated.
CAUTION:
To avoid damage to the molding, be sure to fully open the door glasses on both driver’s and passenger’s sides.
3. Removal of the driver’s airbag module
WARNING:
When storing a removed driver’s airbag module, even if it is a temporary storage, be sure to place the airbag module with the deploying side facing upward.
(1) Check that the ignition switch is turned to OFF.
(2) Check that the battery ground terminal is disconnected.
WARNING:
After disconnecting the battery ground terminal, do not start the work before waiting for 60 seconds.
(3)
Using a flat tip screwdriver, push 3 torsion springs, then release 3 pins.
CAUTION:
Be careful not to drop the driver’s airbag module.
Captions in illustration
| *1 |
Torsion spring |
(4) Pull out the driver’s airbag module toward the rear side of the vehicle.
CAUTION:
When pulling out the driver’s airbag module, be careful not to pull the wiring.
(5) Disconnect the horn connector.
Captions in illustration
| *1 |
Protective tape |
| *2 |
Airbag connector |
| *3 |
Horn connector |
| *a |
Unlock it. |
(6) Using the fine flat tip screwdriver wrapped with protective tape, pull up the lock of the airbag connectors to unlock it.
(7) Using the fine flat tip screwdriver wrapped with protective tape, disconnect the airbag connector and remove the driver’s airbag module.
INSTALLATION
WARNING:
The following service operations include the works which may affect the SRS airbag system. Before starting work, always be sure to confirm the precautions related to the SRS airbag system. (Refer to )
)CAUTION:
Do not allow the harnesses and the connectors to interfere or get tangled with other parts.
1. Installation of the driver’s airbag module
(1) Before installation, inspect the following items and replace any faulty part with a new one.
·Airbag module is cracked or deformed.
·Harness and/or connector is cracked, deformed or broken.
·Harness wire is exposed.
·The condition of the steering wheel makes the installation of the airbag module difficult.
·The clearance between the driver’s airbag module and the steering wheel is not constant.
·Harness and/or connector is cracked, deformed or broken.
·Harness wire is exposed.
·The condition of the steering wheel makes the installation of the airbag module difficult.
·The clearance between the driver’s airbag module and the steering wheel is not constant.
(2) Check that the ignition switch is turned to OFF.
(3) Check that the battery ground terminal is disconnected.
WARNING:
After disconnecting the battery ground terminal, do not start the work before waiting for 60 seconds.
(4) Connect the airbag connector to the driver’s airbag module.
Captions in illustration
| *1 |
Airbag connector |
| *2 |
Horn connector |
| *a |
Push and lock it. |
(5) Push in the lock of the airbag connector.
CAUTION:
Lock it securely.
(6) Connect the horn connector to the driver’s airbag module.
(7) Push in the driver’s airbag module and engage 3 pins to install the driver’s airbag module to the steering wheel ASSY.
CAUTION:
·Securely insert the pins to the attachment holes of the steering wheel ASSY.
·Check that the driver’s airbag module is securely installed.
·Check that the driver’s airbag module is securely installed.
2. Connection of the battery ground terminal
Standard value:
Standard value:
Tightening torque=6.0N·m
{
61kgf·cm}
{4.4ft·lbf}
3. Inspection of the driver’s airbag module
(1) Check that the horn sounds.
4. Inspection of the airbag warning light (Refer to )
)DISPOSAL
WARNING:
The following service operations include the works which may affect the SRS airbag system. Before starting work, always be sure to confirm the precautions related to the SRS airbag system. (Refer to )
)1. Disposal of driver’s airbag module (for module only)
WARNING:
·Perform the operation outdoors on a level surface where safety can be ensured. Avoid performing the operation in residential and similar areas as much as possible.
·Before operating, notify people in the surrounding area because the airbag operation makes a loud noise.
·Before operating, notify people in the surrounding area because the airbag operation makes a loud noise.
(1) Removal of airbag (driver’s airbag module) (Refer to )
)(2) Securing of airbag (driver’s airbag module)
(a) Connect the following SSTs together.
SST
98299PA030 (airbag deployment tool)
98299SA010 (test harness adapter D)
(b) Connect the SST (98299SA010) to the airbag (driver’s airbag module), and lock it securely.
CAUTION:
Lock the SST (98299SA010) connector securely.
(c) Pass the SST (98299SA010) through the disc wheel with tire.
(d) Using wiring harnesses with a core (A in the figure) of 1.25 mm2 {0.00194 sq in} or more, secure the airbag (driver’s airbag module) to a disc wheel.
Captions in illustration
| *1 |
Wiring harness |
*2 |
Core |
| *3 |
Tire |
*4 |
Disc wheel |
| *a |
Secure the airbag with the deploying side facing upward |
*b |
Use three wiring harnesses as a unit (without slack) |
WARNING:
Strictly follow the two instructions below. Failure to do so may result in serious damage suffered by flying debris of the deployed airbag (driver’s airbag module) or tire, etc.
·When activating the airbag (driver’s airbag module), a force of approx. 1 t is applied on the wiring harnesses. Therefore, secure the module tightly with triple wiring harnesses without slack.
·As shown in the figure, be sure to install the airbag (driver’s airbag module) with the deploying side facing upward.
·As shown in the figure, be sure to install the airbag (driver’s airbag module) with the deploying side facing upward.
CAUTION:
Use waste tires and disc wheels for disposal operation.
(3) Activation of airbag (driver’s airbag module)
(a) Short the alligator clip and the terminal of SST (98299PA030).
Captions in illustration
| *a |
Short the circuit |
(b) Connect the SST (98299PA030) to the SST (98299SA010) connected to the airbag (driver’s airbag module) from under the disc wheel.
NOTE:
If the connector of the test harness adapter on the inflator side is melted, replace it with a repair connector (98299FJ010). (Refer to )
)(c) As shown in the figure, place three tires or more on the disc wheel which the airbag (driver’s airbag module) is secured on. On top of them, place a tire with disc wheel.
Captions in illustration
| *1 |
Tire with disc wheel |
*2 |
Tire without disc wheel |
| *a |
Wrap the wire twice or more (without slack) |
*b |
Fully extend the SST |
| *c |
Keep 5 m {16.4 ft} or more from the tires |
- |
- |
(d) Using a wire with a diameter of 1.8mm {0.07 in} or more (usual iron wire for general-purpose: corresponding to JIS SWM-B), wrap the entire tires twice or more without slack to secure them tightly.
CAUTION:
·Secure them so that the total load capacity becomes 1 t or more.
·Use waste tires and disc wheels for disposal operation.
·Use waste tires and disc wheels for disposal operation.
(e) Fully expand the SST (98299PA030) from the airbag (driver’s airbag module) and place the battery 5 m {16.4 ft} or more away from the tires.
(f) Place pylons with ropes, etc. around the tires to keep out of the area within a radius of 5 m {16.4 ft} from the outside of the tires.
Captions in illustration
| *a |
Keep 5 m or more |
(g) After ensuring the safety of the surrounding area, connect the alligator clip of the SST (98299PA030) to the battery ground terminal.
(h) Connect the terminal of the SST (98299PA030) to the battery positive terminal to activate the airbag (driver’s airbag module).
WARNING:
·Perform the operation outdoors on a level surface where safety can be ensured. Avoid performing the operation in residential and similar areas as much as possible.
·Before operating, notify people in the surrounding area because the airbag operation makes a quite loud noise.
·Before the operation, ensure that nobody is in the area.
·Before the operation, notify people near the operating area in a loud voice.
·Before operating, notify people in the surrounding area because the airbag operation makes a quite loud noise.
·Before the operation, ensure that nobody is in the area.
·Before the operation, notify people near the operating area in a loud voice.
(4) Disposal of airbag (driver’s airbag module)
(a) Put an activated airbag (driver’s airbag module) in a strong clear vinyl bag and seal the bag before disposal.
WARNING:
·Because some parts of an activated airbag (driver’s airbag module) may be very hot (hundreds of degrees Celsius or more), leave it 40 minutes or more after operation.
·Do not put water on an activated airbag (driver’s airbag module).
·Wear dustproof safety goggles and gloves when handling an activated airbag (driver’s airbag module).
·Never discard any undeployed airbag (driver’s airbag module).
·Be sure to wash your hands with water after completion of the operation.
·Do not put water on an activated airbag (driver’s airbag module).
·Wear dustproof safety goggles and gloves when handling an activated airbag (driver’s airbag module).
·Never discard any undeployed airbag (driver’s airbag module).
·Be sure to wash your hands with water after completion of the operation.
2. Disposal of driver’s airbag module (for vehicle-mounted module)
CAUTION:
·When disposing a driver’s airbag module, do not use the customer’s vehicle to activate the airbag.
·When activating an airbag, follow the instructions below.
·When activating an airbag, follow the instructions below.
NOTE:
Prepare a battery as a power supply for activating the airbag.
(1) Refer to the precautions. (Refer to )
)(2) Remove the steering column cover LWR. (Refer to )
)(3) Disconnect the cable from the battery ground terminal.
WARNING:
To disable the SRS system, disconnect the battery ground terminal, and then wait for at least 60 seconds before starting the work.
(4) Activation of driver’s airbag
(b) Cut off the disconnected connector on the vehicle side from the body harness at approx. 70 mm (2.76 in) from the front side of the connecter.
SST
Nippers
(c) Remove harness covering approx. 20 mm (0.79 in) of the two disconnected connectors on the vehicle side.
SST
Wire stripper
Captions in illustration
| *1 |
Connector on vehicle side |
| *a |
20 mm (0.79 in) |
(d) Prepare parallel vinyl wires of 6 m (19.7 ft) long, and then remove the covering approx. 20 mm (0.79 in) on both sides. Twist the wire together on one side to make a short condition.
Captions in illustration
| *a |
6 m (19.7 ft) |
| *b |
20 mm (0.79 in) |
(e) Connect the other side of the wires (not in short circuit) to the harnesses of the repaired vehicle side connecter respectively and isolate the wires with vinyl tape as shown in the figure.
NOTE:
Polarity does not have to be cared.
(f) After connecting, reconnect the vehicle side connector to the connector underneath the airbag.
(g) Take the parallel vinyl wires for activation out of the vehicle and ensure that nobody is in the vehicle.
(h) Move the parallel vinyl wires for activation to the position at least 5 m {16.4 ft} away from the vehicle front side window.
Captions in illustration
| *1 |
Battery |
| *2 |
Parallel vinyl wires for activation |
| *a |
5 m {16.4 ft} or more |
(i) Fully expand the parallel vinyl wires for activation, and then fully close the windows, doors, and trunk.
(5) Activate the airbag.
(a) Check that nobody is in the vehicle and within a radius of 5 m {16.4 ft} from the vehicle.
(b) Unwind the twisted parallel vinyl wires and connect each wire to the battery terminals, and then activate the driver’s airbag module.
WARNING:
·Because some parts of an activated airbag (driver’s airbag module) may be very hot (hundreds of degrees Celsius or more), leave it 40 minutes or more after operation.
·Do not put water on an activated airbag (driver’s airbag module).
·Wear dustproof safety goggles and gloves when handling an activated airbag (driver’s airbag module).
·Never discard any undeployed airbag (driver’s airbag module).
·Be sure to wash your hands with water after completion of the operation.
·Do not put water on an activated airbag (driver’s airbag module).
·Wear dustproof safety goggles and gloves when handling an activated airbag (driver’s airbag module).
·Never discard any undeployed airbag (driver’s airbag module).
·Be sure to wash your hands with water after completion of the operation.