Maintenance Items

Do not use electrical test equipment to check SRS circuit.
1. Check operation of "AIR BAG" warning lamp.
After turning ignition key to "ON" position, the "AIR BAG" warning lamp should illuminate. The "AIR BAG" warning lamp will go off after about 7 seconds if no malfunction is detected. If any of the following warning lamp conditions occur, immediately check the air bag or seat belt pre-tensioner system. Refer to "Checking Air Bag Operation by Using "AIR BAG" Warning Lamp - User Mode".
- The "AIR BAG" warning lamp does not illuminate when the ignition switch is turned "ON".
- The "AIR BAG" warning lamp does not go off about 7 seconds after the ignition switch is turned "ON".
- The "AIR BAG" warning lamp blinks after about 7 seconds after the ignition switch is turned "ON".

2. Visually check SRS components.

a. Diagnosis sensor unit
- Check diagnosis sensor unit and bracket for dents, cracks and deformities.
- Check connectors for damage, and terminals for deformities.

b. Air bag module and steering wheel
- Remove air bag module from steering wheel, instrument panel or seat back. Check harness cover and connectors for damage, terminals for deformities, and harness for binding.
- Install driver air bag module to steering wheel to check fit or alignment with the wheel.
- Check steering wheel for excessive free play.
- Install front passenger air bag module to instrument panel to check fit or alignment with the instrument panel.
- Install front side air bag module to seat back to check fit and alignment with the seat.

c. 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.

d. Main harness, body harness, side air bag module sub-harness
- Check connectors for poor connections, damage, and terminals for deformities.
- Check harnesses for binding, chafing or cut.

e. Front seat belt pre-tensioner
- Check harness cover and connectors for damage, terminals for deformities, and harness for binding.
- Check belts for damage and anchors for loose mounting.
- Check retractor for smooth operation.
- Perform self-diagnosis for front seat belt pre-tensioner using "AIR BAG" warning lamp or CONSULT-II. Refer to "SRS Operation Check" for details.

f. Side air bag (satellite) sensor
- Check side air bag satellite sensor for dents, cracks or deformities.
- Check connectors for damage, and terminals for deformities.

CAUTION: Replace previously used special bolts and ground bolt with new ones.