Lock And Alarm System (VGLA) (2000-2004): Function: Collision

Fig 1: VGLA Control Module - Collision

Courtesy of VOLVO CARS OF NORTH AMERICA.

In the event of a collision, the VGLA control module receives a signal from the Supplemental Restraint System Module (SRS) indicating that the doors must be unlocked. This also disengages deadlocking if installed and activated. Unlocking normally takes place when the Supplemental Restraint System Module (SRS) has deployed one or more airbags or seat belt tensioners. However in the event of a collision from the rear, the doors may unlock without the deployment of any unit in the SRS system.