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 ...

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    Road test
    Description DESCRIPTION  The purpose of the test is to determine the overall performance of CVT and analyze causes of problems.  The road test consists of the following three parts:  "Check Before Engine Is Started"TM-164.  "Check at ...

    Climate controlled seat blower motor
    Description Sends airflow to the seat cushion and seatback. Component Function Check 1.CHECK CLIMATE CONTROLLED SEAT BLOWER MOTOR FUNCTION Turn the climate controlled seat switch to the H (Heat) LO, MED, and HI positions and the C (Cool) LO, MED, and HI positions. Check that the climate cont ...

    Blower motor control system
    System Diagram System Description Fan speed is automatically controlled by the temperature setting, ambient temperature, in-vehicle temperature, intake temperature, amount of sunload and air mix door position. By pressing the AUTO switch, the blower motor starts to gradually increase a ...

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