B1021 INFINITI – Occupant Sensor Control Unit

B1021 INFINITI Possible Symptoms

Air Bag Warning Light ON

B1021 INFINITI Possible Causes

Faulty Occupant Sensor Control Unit,Occupant Sensor Control Unit harness is open or shorted,Occupant Sensor Control Unit circuit poor electrical connection,Faulty Diagnosis Sensor Unit

B1021 INFINITI Description

The Occupant Sensor Control Unit suppresses the deployment of passenger air bag when the condition of the passenger seat is empty or child and child-seat. And turns on the cut-off telltale lamp when the condition of the passenger seat is child-seat and child. In the case of malfunction, the blinking of the SRS air bag warning lamp reports the malfunction to the driver and by the on board self-diagnosis system. This Occupant Sensor Control Unit classifies occupant in the passenger seat and detects electrical malfunctions in Occupant Classification System, and transmits malfunction information to air bag control unit. It is integrated into the seat sensor mat and detects the occupants with Occupant Classification System (OCS) control unit that classifies the occupants.