Location of passenger side spatial sensor

Question edited for clarity.
Question moved to model category.

Where Are the F-150 Airbag Sensors Located? - It Still Runs

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The F-150's airbag sensors are located under the driver and passenger seats and inside the safety belts. The location helps the airbag unit determine when ...

you may have a failing or intermittent Toyota 4runner 2005 passenger occupant sensor for air bag Perhaps you need to take it to Toyota

https://resetservicelight.com/reset-srs-airbag-warning-light-toyota-4runner-fourth-generation/

it wont show active since you will be disconnecting the wiring

there is a TSB available if you're under 60,000 miles take it the dealer.

light occurs when:The center airbag sensor assembly receives an open circuit signal in the side squib (front passenger side) circuit for 2 seconds.

possible trouble areas include:Front seat airbag assembly RH (side squib (front passenger side)), Center airbag sensor assembly, & No. 2 floor wire.

Hello Collette,

(Owner Manual Page 2-68)
The passenger sensing system turns off the right front
passenger frontal airbag and seat-mounted side
impact airbag under certain conditions. The driver
airbags and the roof-rail airbags are not affected by the
passenger sensing system.
The passenger sensing system works with sensors that
are part of the right front passenger seat. The sensors
are designed to detect the presence of a properly-seated
occupant and determine if the right front passenger
frontal airbag and seat-mounted side impact airbag
should be enabled (may inflate) or not.

I'm not sure if a purse or other light weight objects would activate the passenger airbag but if your display is showing random passenger activation it would be best to have a qualified dealer check into it...better safe than sorry.
http://www.gm.ca/media/owners/manuals/2010_Chevrolet_Malibu_Manual_en_CA.pdf

there is no switch for the passenger airbag. it is activated by a weight sensor in the passenger seat. if it senses over 50 pounds in the passenger seat it will then turn the passenger airbag on

Hello: Sir, There are a total of 5 (five) modules in the Inflatable restraint system, ( airbag) I will list them, their purpose and location:
Sensing & Diagnostic Module, the main module located under the rear of center console, Driver side inflator module located left side driver seat back . driver side inpact sensor located left lower side of center left pillar. steering wheel inflator module under the horn pad in the steering wheel. passenger front side inflator module located under righ side of upper instrument panel . Right front passenger side impact module right side of passenger seat lower back. Rf passenger side impact sensor. lower part of center pillar. The left and right sensors are not modules . Note, Codes B0051 and B0053 require replacement and programming with a scanner. Hope this helps you

The passenger side airbag is a lot easier then driver side. Take the glove box out and you will see two 10mm bolts holding it in place. When you open the passenger side front door, remove the panel on the side of the dash and you will see yellow connectors.The 1 closest to the front is attached to the air bag, it is clipped into the frame. Just pull it loose and take it out and your done. For the Driver side, it takes a skinny T27 to remove the two star bolts, then just disconnect the horn red clip and ground and install new airbag. The module is located under the passenger seat, underneath the carpet. Kinda stupid but thats where its at. You also need to replace the front impact sensor located behind the grille on the back side of the metal bar to each side. Follow the hood latch down. Also just to make sure, you know to disconnect the battery before you do all this. You don't want new airbags to accidentally deploy.

This should be for the passenger side airbag. If an adult is sitting in the passenger side seat and there is a light that says airbag off then you have a problem either with the passenger side airbag or with the passenger side seat detector. Start up the car and sit in the passenger seat, buckle the seat belt and make sure the light now says airbag on. If this does not happen take car to dealer. Dealers have correct computers to enter the airbag modules to read and diagnose the fault code.