Some SRS / Airbag system connectors have a spring-loaded lock.

Disconnecting
To release the lock, pull the spring-loaded sleeve towards the stop while holding the opposite half of the connector. Then pull the connector halves apart. Be sure to pull on the sleeve and not on the connector half.

KEY
1. SPRING-LOADED SLEEVE
2. STOP

Connecting
Hold the pawl-side connector half, and press on the back of the sleeve-side connector half in the direction shown. As the two connector halves are pressed together, the sleeve is pushed back by the pawl. Do not touch the sleeve.

KEY
1. PAWL
2. SPRING-LOADED SLEEVE

 

When the connector halves are fully engaged, the pawl is released, and the spring-loaded sleeve locks the connector.

KEY
1. SPRING-LOADED SLEEVE