Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Seat Belt Systems: Testing and Inspection

Seat Belt Pretensioner Inspection

WARNING:
- Never measure resistance of retractor pretensioner and lap pretensioner. Current of tester can activate pretensioner.






- Do not face discharge hole (1) on side downward or place anything on it when placing seat belt pretensioner which has not been activated.






- Never repair or disassemble seat belt assembly.


Check seat belt assembly (retractor pretensioner and lap pretensioner) and if any of the following condition is found, replace seat belt assembly (retractor pretensioner and lap pretensioner) with new one.
- Pretensioner being activated.

NOTE: As retractor pretensioner and lap pretensioner are controlled with driver and passenger air bag, you should judge that pretensioner has been activated if air bag has deployed.

- Deformation or damage of retractor pretensioner and lap pretensioner.
- Connector being damaged.