Nissan Maxima Service and Repair Manual: Occupant classification system

System Diagram

Nissan Maxima. System Diagram

Occupant Classification System (OCS)

Nissan Maxima. Occupant Classification System (OCS)

The occupant classification system (OCS) identifies if a child or child
seat is present in the front passenger seat. The OCS receives inputs
from the occupant classification sensor mat (1) which is located
inside the passenger seat cushion assembly. Depending on classification
of the passenger, the OCS control unit (2) sends a signal to
the air bag diagnosis sensor unit. The air bag diagnosis sensor unit
uses this signal and the seat belt buckle switch RH signal to determine
deployment or non-deployment of the front passenger air bag
module in the event of a collision. Depending on the signals
received, the air bag diagnosis sensor unit can disable the front passenger
air bag module completely.
NOTE:
In case of customer concern, CONSULT can be used to confirm the front passenger air bag status (readiness).

Front Passenger Air Bag Status Conditions

Nissan Maxima. Front Passenger Air Bag Status Conditions

NOTE:
Passenger does not meet Occupant Classification System specifications for passenger air bag activation.

    SRS air bag system
    SRS Configuration The air bag deploys if the air bag diagnosis sensor unit is activated while the ignition switch is in the ON orSTART position.The collision modes for which supplemental restra ...

    Passenger seat belt warning system
    System Diagram System Description The seat belt warning lamp (1) will remind the driver if the driver or front passenger seat belt should be buckled. The system works inconjunction with the o ...

    Other materials:

    Center speaker
    Description The AV control unit sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the audio signals before sending them to the center speaker using the audio signal circuits. Diagnosis Procedure 1.CONNECTOR CHECK Check the AV control unit, BOSE speaker amp. and s ...

    Microphone signal circuit
    Description Voice signals are transmitted from the microphone to the Bluetooth control unit using the microphone signal circuits. Diagnosis Procedure 1.CHECK HARNESS BETWEEN BLUETOOTH CONTROL UNIT AND MICROPHONE Turn ignition switch OFF. Disconnect Bluetooth control unit connector and ...

    Multiport fuel injection system
    System Diagram System Description INPUT/OUTPUT SIGNAL CHART *1: This sensor is not used to control the engine system under normal conditions. *2: This signal is sent to the ECM via the CAN communication line. *3: ECM determines the start signal status by the signals of engine speed ...

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