Diesel Data: Automotive Repair
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Air Bag Replacement











REMOVAL SERVICE POINTS

NEGATIVE (-) BATTERY CABLE DISCONNECTION

Disconnect the negative battery cable from the battery and tape the terminal.

Caution: Wait at least 60 seconds after disconnecting the battery cable before doing any further work. Air Bags Precautions



AIR BAG MODULE REMOVAL (DRIVER'S SIDE)

1. Remove the air bag module mounting nut using a socket wrench from the back side.

2. When disconnecting the connector of the clock spring from the air bag module, press the air bag's lock toward the outer side to spread it open. Use a screwdriver, as shown in the figure at the left, to pry so as to remove the connector gently.





Cautions

1. When disconnecting the air bag module-clock spring connector, take care not to apply excessive force to it.

2. The removed air bag module should be stored in a clean, dry place with the pad cover face up.

STEERING WHEEL REMOVAL

Caution: Do not hammer on the steering wheel. Doing so may damage the collapsible column mechanism.





If, as result of the following checks, even one abnormal point is discovered, replace the clock spring with a new one.

1. Check connectors and protective tube for damage, and terminals for deformation.





2. Visually check the case and the gears for damage.





3. Check for continuity between the No.1 connector of the clock spring and connectors No.3 and 4









4. Check resistance between the terminals.

a. Join the No.2 connector and No.5 connector of the clock spring to connector # 4 and connector # 3, respectively, of the SRS Check Harness.

NOTE: When joining SRS Check Harness connector # 4, align its white paint with the hollow portion of the No.2 connector of the clock spring.

b. Check for continuity between terminal 1 and terminal 22, and terminal 2 and terminal 21, of SRS Check Harness connector # 5, using a digital multi-meter. Standard value: less than 0.4 ohms.

INSTALLATION SERVICE POINTS

PRE-INSTALLATION INSPECTION

1. When installing the new air bag module and clock spring, refer to "INSPECTION".

Caution: Dispose of an air bag module only according to the specified procedure. Air Bag Disposal Procedures

2. Connect the battery (-) terminal.


3. Connect the scan tool to the data link connector then check diagnostic codes.

Caution: Make certain that the ignition switch is OFF when the scan tool is connected or disconnected.

4. Turn the ignition key to the "ON" position.

5. Conduct diagnostic test mode using the scan tool to ensure entire SRS operates properly, except open circuit of air bag module (diagnostic trouble code No.22, 25).

6. Turn the ignition key to the "LOCK" position, disconnect the negative battery cable and tape the terminal.

Caution: Wait at least 60 seconds after disconnecting the battery cable before doing any further work. Air Bags Precautions

CLOCK SPRING INSTALLATION

Align the mating mark and "NEUTRAL" position indicator of the clock spring, and, after turning the front wheels to the straight-ahead position, install the clock spring to the column switch.

Caution: If the clock spring's mating mark is not properly aligned, the steering wheel may not be completely rotational during a turn, or the flat cable within the clock spring may be severed, obstructing normal operation of the SRS.

STEERING WHEEL INSTALLATION

1. Before installing the steering wheel, be sure to first turn the vehicle's front wheels to the straight-ahead position and align the mating mark and "NEUTRAL" position indicator of the clock spring.

Caution: Be sure when installing the steering wheel, that the harness of the clock spring does not become caught or tangled.

2. After tightening, turn the steering wheel all the way in both directions to confirm that steering is normal.

AIR BAG MODULE INSTALLATION (DRIVER'S SIDE)

Install the air bag module, taking care that the wiring is not pinched.

POST-INSTALLATION INSPECTION

1. After installing the clock spring, the steering wheel, the column covers and the air bag module, check steering wheel for noise, binds or difficult operation.

2. Reconnect the negative battery terminal. Turn the ignition key to the "ON" position. Does the "SRS" warning light illuminate for about 7 seconds, turn OFF and then remain OFF for at least 45 seconds? If yes, SRS system is functioning properly. If no, consult SRS Warning Light Inspection. Testing and Inspection

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