Nissan Altima 2007-2012 Service Manual: 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 in conjunction with the occupant classification system. Refer to SRC- 10, "Occupant Classification System (OCS)".

Passenger Seat Belt Warning System Operation

Component Parts Location

Refer to SRC-7, "SRS Component Parts Location".

    Occupant classification system
    System Diagram 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 input ...

    On board diagnostic (OBD) system
    Trouble Diagnosis Introduction CAUTION: • Do not use electrical test equipment on any circuit related to the SRS unless instructed to do so in this Service Manual. SRS wiring harnesses can be i ...

    Other materials:

    P0448 evap canister vent control valve
    Description The EVAP canister vent control valve is located on the EVAP canister and is used to seal the canister vent. This solenoid valve responds to signals from the ECM. When the ECM sends an ON signal, the coil in the solenoid valve is energized. A plunger will then move to seal the ca ...

    Driver side
    Description Door glass moves UP/DOWN by receiving the signal from main power window and door lock/unlock switch. Component Function Check 1. CHECK POWER WINDOW MOTOR CIRCUIT Does power window motor LH operate with operating main power window and door lock/unlock switch? Is the inspection ...

    Drive belt
    QR25DE eng 1. Crankshaft pulley 2. Drive belt Automatic tensioner 3. Water pump pulley 4. Alternator 5. Air conditioner WARNING Be sure the ignition switch is placed in the OFF or LOCK position before servicing drive belt. The engine could rotate unexpectedly. 1. Visually inspect the be ...