Repairs and Inspections Required After a Collision: Service and Repair

INSPECTION PROCEDURE FOR VEHICLE INVOLVED IN ACCIDENT

1.

(a) Perform zero point calibration and sensitivity check if any of the following conditions apply Initialization.

- The front seat set (occupant classification ECU) is replaced.

- The passenger airbag ON/OFF indicator indicates OFF when the front passenger seat is not occupied.

- The vehicle is brought to the workshop for repair due to an accident or a collision.


2.

(a) When the airbag has not deployed, confirm the DTCs by checking the SRS warning light. If there is any malfunction in the SRS airbag system, perform troubleshooting.

(b) When any of the airbags have deployed, replace the airbag sensors and check the installation condition.

3. SRS CONNECTORS

(a) SRS connectors are located as shown in the following illustration.





















(b) All connectors in the SRS, except the seat position airbag sensor connector, are colored yellow to distinguish them from other connectors. These connectors have special functions, and are specially designed for the SRS. All SRS connectors use durable gold-plated terminals, and are placed in the locations shown below to ensure high reliability.





(1) Terminal twin-lock mechanism:

All connectors with a terminal twin-lock mechanism have a two-piece component consisting of a housing and a spacer. This design enables the terminal to be locked securely by two locking devices (the retainer and the lance) to prevent terminals from coming out.

(2) Activation prevention mechanism:

All connectors with an activation prevention mechanism contain a short spring plate. When these connectors are disconnected, the short spring plate creates a short circuit by automatically connecting the positive (+) and negative (-) terminals of the squib.





(3) Half connection prevention mechanism:

If the connector is not completely connected, the connector is disconnected due to the spring force so that no continuity exists.





(4) Connector position assurance mechanism:

Only when the housing lock (white part) is completely engaged, the CPA (yellow part) slides, which completes the connector engagement.





(5) Connector lock mechanism (1):

Locking the connector lock button connects the connector securely.





(6) Connector lock mechanism (2):

Both the primary lock with holder lances and the secondary lock with retainer prevent the connectors from becoming disconnected.





(7) Improper connection prevention lock mechanism:

When connecting the holder, the lever is pushed into the lock position by rotating around the A axis to lock the holder securely.