Air Bag Systems: Service and Repair
Maintenance Items:
1. Check "AIR BAG" warning lamp operation
After turning ignition key to "ON" position, "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 or flashes again.
2. Visually check SRS components
1. Diagnosis sensor unit
^ Check diagnosis sensor unit and bracket for dents, cracks or deformities.
^ Check connectors for damage, and terminals for deformities.
2. Air bag module and steering wheel
^ Remove air bag module from steering wheel or instrument panel. Check harness cover and connectors for damage, terminals for deformities, and harness for binding.
^ Install driver side air bag module to steering wheel to check fit or alignment with the wheel.
^ Check steering wheel for excessive free play.
^ For dual air bag system, install passenger side air bag module to instrument panel to check fit or alignment with the instrument panel.
3. Spiral cable
^ Check spiral cable for dents, cracks, or deformities.
^ Check connectors and protective tape for damage.
^ Check steering wheel for noise, binding or heavy operation.
4. Main harness and air bag harness
^ Check connectors for poor connections, damage, and terminals for deformities.
^ Check harnesses for binding, chafing or cut.
CAUTION: Replace previously used special bolts and ground bolt with new ones.