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III. KEY POINTS FOR INSTALLATION

1. Pre-Check

(1) The new airbag or clock spring shall be checked before being installed.

(2) Connect negative (-) terminal cable of the battery.

(3) Connect Hi-DS T to the diagnostic interface (16 connector).

(4) Turn the ignition switch ON.

(5) Read the diagnostic circuit and see if the other locations than the troubled area of the airbag are normal.

(6) Turn the ignition switch ON.

(7) Remove the negative (-) terminal cable from the battery, and protect it with insulating tape for insulation.

2. Installation of clock spring: align the clock spring and install it to the

steering wheel.

Center alignment of the clock spring

Screw up the clock spring clockwise to the end, rotate it counterclock-

wise by 2.5 turns, and align it with the mark (see the figure below).

3. Install the components of the steering wheel and airbag assembly

(1) When the center of the clock spring is aligned, install the components of the steering wheel and airbag

assembly.

(2) After being installed, rotate the left and right sides of the steering wheel to position, and make sure there

is no abnormality.

NOTICE

In case of scrapping an airbag, it shall be noted that the airbag shall be deployed according to the specified

procedures before being scrapped.

When connecting or disconnecting the Hi-DS T, turn the ignition switch OFF first.

NOTICE:

Work must be started 60s after the negative (-) terminal cable is disconnected from battery.

NOTICE:

If the center of the clock spring cannot be aligned, the steering wheel

will not turn midway, or cause bad performance to the clock spring

circuit, consequently hamper the normal action of the airbag.

NOTICE

When installing the components of the steering wheel and airbag assembly, attention should be given to

protect the wire harness of the clock spring from seizure.

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4. Check after installation

(1) Slightly rotate the steering wheel left and right, make sure that there is no abnormality or noise. (Driver

airbag module, clock spring)

(2) Turn the ignition switch ON.

(3) The warning light goes on within 6s, and then goes out.

(4) The trouble shall be eliminated if the warning light remains on when the ignition switch is turned on or

after it goes out after 6s.

IV. CHECKING

1. Driver airbag assembly checking

Check the following items and replace the related components of the airbag assembly if any badness is

found. The old components shall be deployed before scrapping.

(1) Check the hood for pitting, crack, distortion, etc.

(2) Check the joint of the wire harness for damage and the terminal for distortion.

(3) Check the case of the gas generator for pitting, crack and distortion.

(4) Check the installation status of the airbag assembly.

2. Check the clock spring

Check the following items, and replace the clock spring if any badness is found.

(1) Check the joint and protecting tube for damage and the terminal for distortion.

(2) Check the case for damage.

(3) Check and see if the joint terminal at the upper end of the clock spring are in conduction with that at the

lower end.

(4)  A thin probe shall be inserted from the back of the yellow connector of the clock spring.

NOTICE

If there is pitting, crack or distortion, replace the airbag assembly with new one. The old components of the

airbag shall be deployed before scrapping.

The circuit resistance of the airbag assembly (squib) cannot be measured even with a designated tester.

Since there is current flowing in the squib, when a tester is involved in measuring the resistance, sometimes

the airbag is unexpectedly deployed in case of static electricity, leading to serious accident.

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(5) With reference to the figure below, insert thin probes into the current tester to check the conduction of

the terminals.

V. KEY POINTS FOR SCRAPPING THE AIRBAG ASSEMBLY

The airbag shall be deployed according to the following procedures before scrapping the airbag assembly or

a vehicle installed with an airbag.

1. Scrapping of an airbag assembly prior to deployment

(1) Deploy inside a vehicle

1

Park the vehicle in a flat area

NOTICE

Never insert probe directly from the lower end of the connector.

NOTICE

The airbag shall be deployed before being scrapped.

The airbag shall be deployed outside the vehicle before being changed.

The airbag shall be deployed in the vicinity of a smoke detector since smoke will appear when the airbag is

deployed.

When being deployed, the airbag will create much noise. People nearby shall wear noise muffler to close

their ears.  Avoid do the job within the residential areas.

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2

Disconnect the positive (+) and negative (-) terminal cables from the battery and remove the battery from

the vehicle.

3

The airbag assembly shall be deployed according to the following procedures.

(2) Driver airbag assembly

1

Remove the knee bolster.

2

Remove the connector (yellow) that connecting the lower end of the clock spring with the wire harness

of the instrument panel (see the figure below).

3

Tie two 6m plus wire harnesses for deployment to the adaptor wire harness of the airbag, and wrap the

connecting points with insulating tape for insulation. The other ends of the wire harness for deployment

are connected to each other (short circuited). Unexpected deployment resulted from static electricity

shall be prevented.

4

From the yellow connector of the clock spring, lead the airbag adapter wire harnesses out of the vehicle

by means of the wire harnesses for deployment (see the figure below).

5

To restrain the noise, close all the windows and doors and put on the vehicle cover.

NOTICE

Work must be started 60s after the positive (+) and negative (-) terminal cables are detached from battery.

NOTICE

Remove the connector of the clock spring from the wire harness of the instrument, the connector will be

short circuited automatically, which can avoid the possible serious accident resulted from the deployment of

the diver airbag assembly due to static electricity.

NOTICE

The glass will likely break up if there is crack. Vehicle covers shall be put on.