Seat Belt System

Repairs and Inspections Required After A Collision







WARNING:
- Never attempt to disassemble or repair the seat belt pretensioner (retractor assembly). If any abnormality is found, be sure to replace it with new one as an assembly
- Be sure to read "Precautions on Service and Diagnosis of Seat Belt" ,before starting to work and observe every precaution during work. Neglecting them may result in personal injury or unactivation of the seat belt pretensioner when necessary.
- Never measure resistance of pretensioner or disassemble it. Otherwise, personal injury may result.

CAUTION: If seat belt pretensioner (retractor assembly) was dropped from a height of 30 cm (1 ft) or more, it should be replaced.

Seat belts and attaching parts can affect the vital components and systems of a vehicle. Therefore, they should be inspected carefully and replaced with genuine parts only.




- Seat belt pretensioner
- Check for dents, cracks, damage or fitness
- Check harness and connector for damage or tightness.


Seat Belt
- The seat belt webbing or strap should be free from damage.

Retractor Assembly (with Seat Belt Pretensioner)
1. Let the seat belt retract fully to confirm its easy retraction.
- The retractor assembly should lock webbing when pulled quickly.
- The front seat belt retractor assembly (1) should pass the inspection and should lock webbing even when tilted (approx. 15 °) toward the fore and aft or right and left directions.




2. Check retractor assembly (1) with seat belt pretensioner appearance visually for following symptoms and if any one of them is applicable, replace it with a new one as an assembly.
- Pretensioner has activated.
- There is a crack in seat belt pretensioner (retractor assembly).
- Seat belt pretensioner (retractor assembly) is damaged or a strong impact (e.g., dropping) was applied to it.

Anchor bolt
- Anchor bolts should be torqued to specification.

Belt latch
- It should be secure when latched.

Seat Belt Switch
Check driver side seat belt switch for continuity by using ohmmeter.




Seat belt switch specification
Without inserted buckle tongue to buckle catch:
Terminal "A" and "B": Continuity

With inserted buckle tongue to buckle catch:
Terminal "A" and "B": No continuity.


WARNING: Be sure to read "Precautions on Service and Diagnosis of Seat Belt" before starting to work and observe every precaution during work.

INSPECTION
- Check the rear seat belt in the same way as "Front Seat Belt Inspection".
- As to seat belts with A-ELR (other than center seat belt), check them as follows in addition to above check.
- With vehicle at stop, pull seat belt all the way out, let it retract a little and try to pull it. It should not be pulled out, that is, it should be locked where retracted.
- Let seat belt retract to its original state. Next, pull it half way out, let it retract a little and try to pull it again. It should be pulled out smoothly, that is it should not be locked at this time.