Operation CHARM: Car repair manuals for everyone.

Restraints and Safety Systems: Service Precautions

Air Bag System:






1. Component Replacement

^ Before replacing any air bag system component or disconnecting any system connector, first disconnect the negative battery cable; then disconnect the orange and blue clock spring connectors.

Air Bag System:






2. Component Disassembly

^ Do not disassemble any component of the air bag system.

^ If the diagnostic module detects a component malfunction, replace the component after checking the connections and wiring harnesses.

Air Bag System:






3. Wiring Harness Repair

^ If an open circuit is found, replace the wiring harness. Do not try to repair the wiring.

Air Bag System:






4. Handling of Air Bag Module

^ Do not use an ohmmeter to inspect the air bag module. This can cause the air bag to accidentally deploy.

Air Bag System:






^ When carrying a live (inactivated) air bag module, point the trim cover away from your body. This will help prevent personal injury in the event of an accidental deployment.

Air Bag System:






^ When placing a live air bag module on any surface, face the trim cover up to reduce the motion of the module in case it is accidentally deployed.

Air Bag System:






^ When handling a deployed air bag module, wear gloves and safety glasses. The deployed air bag module may contain deposits of sodium hydroxide, a caustic by-product of the gas generates combustion.

^ When an air bag module is to be disposed following the proper procedure recommended for the specific situation.

Air Bag System:






5. Crash Sensor Installation

^ Crash sensor orientation is very important for proper operation. If a vehicle is involved in a collision where its front sheet metal is damaged, inspect the body structure at the sensor mounting area for deformation. If damaged, restore to its original shape.

Air Bag System:






6. Adjustment of Clock Spring Connector

^ Whenever the steering wheel is removed, before reinstalling it, set the clock spring connector as follows:

1. Set the front wheels straight ahead.

2. Turn the clock spring connector clockwise until it stops. (Do not force it.)

Air Bag System:






3. Return the connector 2.75 turns

Air Bag System:






4. Align the marks on the clock spring connector and the outer housing.

Air Bag System:





7. Disconnection of Double Lock Type Connector

The connectors in the air bag system are a double lock connectors and must be disconnected and connected as described below.

1) Press the orange knob and disconnect the orange connector.

2) Press the blue knob and disconnect the blue connector.

3) Connect the connectors in the reverse order of disconnection.

Air Bag System:






Note

^ Disconnecting the 2-pin connector of the air bag module and clock spring will cause a short in the two terminals of the connector.

^ When reconnecting the connector, insert pin B into part A to sever the connection between the two terminals.

^ Make sure pin B in not broken. If it is, replace the combination switch or harness.

Air Bag System:






8. Testing Terminals

^ Use a test lead with a fine needle to prevent damage to the terminals.

Air Bag System:






9. After System Service

^ After system service verify system operation by checking with the air bag system warning lamp. If the system is operating normally, the warning lamp will come on when the ignition switch is turned ON, then go off after approximately six (6) seconds.
^ Check if the horn sounds. If the horn does not sound, remove the air bag module and check the connections of the air bag module and horn switch connectors.