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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R Spec V >> Repair and Diagnosis >> External Pages >> Different car >> Section 1495 (Supplemental Restraint System) >> Supplemental Restraint System (SRS) >> Occupant Classification System
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Occupant Classification System

WARNING: This page is about a different car, the 2005 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

The occupant classification system identifies different size occupants, out of position occupants, and detects if child seat is present in the front passenger seat. The occupant classification system receives inputs from the occupant classification system sensor (located inside the passenger seat cushion assembly) and belt tension sensor (part of the passenger front seat belt assembly and located at the belt anchor location). Depending on classification of passenger, the occupant classification system sends a signal to the diagnosis sensor unit. The diagnosis sensor unit uses this signal to determine full, partial, or non deployment of passenger front air bag in

The event of a collision. Depending on the signal received, the diagnosis sensor unit can disable the passenger front air bag completely. If this occurs the diagnosis sensor unit will turn on the PASS AIR BAG OFF indicator.

Fig 1: Identifying Belt Tension Sensor
G02447869Courtesy of NISSAN MOTOR CO., U.S.A.