Air Bag Systems: Service and Repair

Maintenance Items:

1. Check "AIR BAG" warring lamp operation

After turning the ignition key ON, "AIR BAG" warning lamp illuminates. The "AIR BAG" warning lamp will turn off after about 7 seconds if no malfunction is detected.
If any of the following "AIR BAG" warning lamp conditions occur, immediately check the air bag system.
- The warning lamp does not illuminate when the ignition switch is turned ON.
- The warning lamp does not turn off about 7 seconds after the Ignition switch is turned ON.
- The warning lamp turns off about 7 seconds after the ignition switch is turned ON, but it turns on again or brinks.

2. Visually check SRS components
A. Crash zone sensor (4WD models)
- Check crash zone sensor to ensure the arrow marks face the front of the vehicle.
- Check body and sensor bracket for deformities and rust.
- Check sensor case for dents, cracks, deformities and rust.
- Check sensor harness for binding, connector for damage and terminals for deformities.

B. Air bag diagnosis sensor unit
- Check air bag diagnosis sensor unit and bracket for dents, cracks and deformities.
- Check connectors for damage and terminals for deformities.

C. Air bag modules, steering wheel and instrument panel
- Remove driver air bag module from steering wheel. Check harness cover and connectors for damage, terminals for deformities, and harness for binding.
- Install driver air bag module in steering wheel to check fit or alignment with the wheel.
- Check steering wheel for excessive free play.
- Remove passenger air bag module. Check harness cover and connectors for damage, terminals for deformities, and harness for binding. Check the bracket for deformities and rust.
- Install Passenger air bag module in instrument panel to check fit or alignment with the instrument panel.

D. Spiral cable
- Check spiral cable for dents, cracks, and deformities.
- Check connectors and protective tape for damage.
- Check steering wheel for noise. binding and heavy operation.

E. Passenger air bag deactivation switch
- Check passenger air bag deactivation switch for damage.
- Check harness for binding, connector for damage and terminals for deformities.

F. Main harness and air bag harness
- Check connectors for poor connections, damage. and terminals for deformities.
- Check harnesses for binding, chafing and cuts.

CAUTION: Replace previously used special bolts with new ones.